Axial Piston Pumps Ax and Motors by Liebherr Versatile and and Durable Durable
High-grade hydraulic components by Liebherr Liebherr has been manufacturing hydraulic components at the Bulle site in Switzerland for more than 30 years. Essentially, these include axial piston pumps and motors in swash plate design. However, a range of pilot control devices and valves are also produced. Development and production of the components is supported by decades of experience and state-of-the-art technologies. The use of high strength materials and a durable design for high-pressure applications make the Liebherr hydraulic components suitable for the high quality expectations in cranes, construction machines, mining equipment, maritime use and other applications. They are also distinguished by a long service life, optimised efficiency and low noise emissions during operation. In order to meet the requirements of every customer optimally, the components can be put together flexibly and individually thanks to modular systems. Furthermore, the product range of fers various application-specific developments.
Hydraulic pump DPVO165 (rear left) and DPVG165 (rear right) and also hydraulic motor C MVE1 MVE165 65
2
Axial Piston Pumps and Motors by Liebhe rr
High-grade hydraulic components by Liebherr Liebherr has been manufacturing hydraulic components at the Bulle site in Switzerland for more than 30 years. Essentially, these include axial piston pumps and motors in swash plate design. However, a range of pilot control devices and valves are also produced. Development and production of the components is supported by decades of experience and state-of-the-art technologies. The use of high strength materials and a durable design for high-pressure applications make the Liebherr hydraulic components suitable for the high quality expectations in cranes, construction machines, mining equipment, maritime use and other applications. They are also distinguished by a long service life, optimised efficiency and low noise emissions during operation. In order to meet the requirements of every customer optimally, the components can be put together flexibly and individually thanks to modular systems. Furthermore, the product range of fers various application-specific developments.
Hydraulic pump DPVO165 (rear left) and DPVG165 (rear right) and also hydraulic motor C MVE1 MVE165 65
2
Axial Piston Pumps and Motors by Liebhe rr
Manufacturing know-how
Page 4
Maximum flexibility and modularity
Page 6
Long ser vice life
Page 8
Low noise emissions
Page 10
Optimised efficiency
Page 12
Application-specific developments
Page 14
Product range hydraulic pumps
Page 16
Product range hydraulic motors
Page 26
Pilot control devices and hydraulic valves
Page 42
Examples of use
Page 44
Axial Piston Pumps and Motors by Liebh err
3
Decades of experience The first hydraulic products came off the production line back in 1983. To this day, they have been consistently further developed and modernised.
4
Axial Piston Pumps and Motors by Liebhe rr
Manufacturing know-how Liebherr has always attached gre at importance to a high level of vertical integration in the group of companies. This also applies to the components division. As such, many parts that are decisive for the quality and performance are produce d for the axial piston units inhouse at the Bulle site in Switzerland. To ensure a consistently high level of quality and reliability of the high precision hydraulic components, Liebherr constantly improves all production processes and continually invests in the most advanced manufacturing facilities.
Assembly Specially constructed mounting equipment enables fast, effective work under ergonomic conditions.
Manufacturing depth
The inhouse production of quality-relevant parts makes qualitatively high-grade products possible. For example, the drive shafts and cylinders of the axial piston units are made on Liebherr's own tooth cutting machines.
State-of-the-art facilities
State of the art production facilities allow for a high standard of precision and consistency of the finished workpieces and facilitate economical manufacture of small and large batch sizes. In addition, they enable short reaction times when customer requirements change.
Production Mastering critical production processes is decisive for the quality and long service life of a component. Therefore, Liebherr machines the cast housings and connecting plates completely inhouse.
Axial Piston Pumps and Motors by Liebh err
5
Modular system of through-drives For the through-drive option of up to 100% output, a wide range of flanges and adapters are available with varying diameters.
6
Axial Piston Pumps and Motors by Liebhe rr
Maximum flexibility and modularity The axial piston units from Liebherr have a swash plate design and are available in a wide range of variants. The product portfolio comprises pumps and motors both for open as well as closed hydraulic circuits. Moreover, Liebherr offers not only adjustable hydraulic pumps and motors but also fixed ones. The pumps can be designed as single, double or parallel pumps, the motors as single or double motors. A modular system of controllers, through-drives and mounting flanges means that hydraulic pumps and motors from Liebherr are particularly flexible and versatile. As such, the optimal solution can be found for ever y drive application. Modular controller system
All of the different rated units can be equipped as an option with varying controllers, such as electric-proportional, with pressure cut-off, diesel speed-dependent controllers or torque controllers. Safety valves with a seat valve design can cut-off the control pressure and, in this way, bring the axial piston unit into a neutral position again.
Standardised mounting flanges
The various mounting flanges in standard sizes that comply with SAE and ISO simplify integration of the components in the end unit. Furthermore, they enable a flexible combination of hydraulic pumps and splitter boxes or hydraulic motors and gearboxes.
Modular throughdrive system
The modular system of through-drives is facilitated by a common drive design, standard flanges and coupling sleeves. In this way, a hydraulic pump can be connected easily to other units with maximum equivalent nominal size.
Modular controller system All of the different rated units can be equipped as an option with a variety of controllers, such as electric-proportional, diesel speed-dependent controllers or torque controllers.
Axial Piston Pumps and Motors by Liebh err
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Analyses with FEM Using the finite element method (FEM), ideal rigidity, optimal distribution of stress, ideal material distribution and improved geometry can be achieved. Analyses with FEM are carried out on the cylinders, for example.
8
Axial Piston Pumps and Motors by Liebhe rr
Long service life The foundation for the quality and performance of Liebherr hydraulic components is laid already during product development. The combination of proven design features and innovative ideas leads to products with a long service life. Systematic simulation
The use of modern CAD software and FEM analysis for the simulation leads to components that are designed optimally. To verify and improve the computing models employed, new products are also examined in the laboratory and subjected to various test routines. An example of this are the high pressure endurance trials. Parts that need to withstand arduous operating conditions, such as pistons, piston-slipper assemblies and other drive system elements, are examined particularly intensively and optimised to maximise the service life of the different components overall.
Precision and accuracy
A close working relationship between the departments, such as development, work preparation, production and quality assurance guarantees high precision components that are made consistently to the same high standards. Modern production facilities that can be used to produce highly complex parts only in just a few clamping operations also contribute to a high standard of quality.
Quality assurance
Modern quality assurance measures and state-of-theart measuring equipment ensure early detection of faults during the whole production and assembly process, thereby keeping failure rates low. Without exception, every axial piston unit is subjected to a functional test before delivery during which, among other things, the torque and efficiency are checked. Only absolutely flawless components leave the factory.
Highest quality standards
The quality assurance procedure at the Bulle site is certified according to DIN EN ISO 9001/2008 and is performed as per VDA standards (reliability control system).
Engineering
3D measuring devices
Using up-to-date CAD programs, the hydraulic components are developed, tested virtually in simulation programs and then prepared for series p roduction.
The measurement of individual parts and assembled components is carried out using modern, computer-assisted test equipment.
Axial Piston Pumps and Motors by Liebh err
9
Optimal construction Special ribs on the inside of the hydraulic housings lower the directly emitted airborne noise, thereby reducing noise emissions considerably.
10
Axial Piston Pumps and Motors by Liebhe rr
Low noise emissions During development and construction of the axial piston pumps and motors, Liebherr places specific impor tance not only on performance, efficiency and longevity but also on the optimisation of noise emissions in particular. The aim is to minimise the sound generated by pressure pulsations as far as possible and to minimize the emitted airborne noise from the housing. To achieve this, Liebherr relies on the knowledge gained through research and measurements and trials on its own acoustic test bench. Optimal design
Noise emissions are reduced considerably by the sturdy, enclosed housings with integrated swivel joke bearing as well as the reinforced SAE connecting flanges. Special ribs on the inside of the housing walls also ensure that the hydraulic components run more smoothly and with less noise. In addition, the ribs result in a significantly lower weight and higher stiffness.
Good vibration characteristics
With the finite element method (FEM), load distribution within the components can be determined and areas that are subjected to particularly high loads can be identified. It is also possible to calculate the vibration characteristics of a pump or a motor and to optimise the shape and structure of the housing using the results. The increased stiffness of the housing has a positive effect on the noise behaviour. Vibrations are minimised and material fatigue is kept as low as possible.
Acoustic test bench Noise measurements are performed in a sound-insulated chamber. The high quality measuring technology makes it possible to record component vibrations in various types of media (air-borne, water-borne, structure-borne noise) and highlights optimisation potential.
Test bench flange Pressure pipe
Pump housing
SAE flange
Acoustic intensity measurement The comprehensive acoustic intensity measurements enable the precise localisation of noise. Optimisation measures are simplified by pinpointing the source of noise.
Suction pipe
Axial Piston Pumps and Motors by Liebh err
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Axial piston motor
Large swash plate angle
100
The change in swash angle from 14.5 on model series A to 22 degrees on model series D enables a higher conversion range and a greater degree of efficiency.
78% 80
65%
60
Conversion = 2.5
) % ( 40 y c n e i c 20 fi f E
Conversion = 2.5
Overall efficiency of an axial piston pump 450
r a b n i p ∆ e r u s s e r P
0 0°
1°
2°
4°
6°
8°
10°
Swash plate angle
12
Axial Piston Pumps and Motors by Liebhe rr
12° 14,5°
16°
18°
20°
Efficiency curve
22°
0 0
Swash plate angle in %
100
Optimised efficiency For the latest generation of axial piston units (model series D), Liebherr offers a swash plate angle increase from 14.5 degrees to 22 degrees compared with the first generation (model series A). On one hand, a higher swash plate angle increases the conversion range of the motors, which is advantageous on mobile vehicles, for example, and in closed hydraulic circuits. On the other hand, the higher swash plate angle enhances the operating range in which the pumps and motors operate with a high level of efficiency. High power density
The high power density of the axial piston units from Liebherr results from the high swash plate angle, the compact rotating group and the high pressure level rated at up to 450 bar nominal pressure. Thanks to the high power density, smaller nominal component sizes can often be used with the same output.
Optimised flow characteristics
Thanks to the use of modern flow simulation software (CFD) and various measurements, pressure losses in the flow channel layout are minimised and the flow characteristics are improved. An optimal design of control plate and actuation geometry, configured to the operating range, minimizes pressure pulsations.
High dynamics
The high control dynamics of the latest generation of Liebherr axial piston units (model series D) are made possible by a piloted adjustment, i.e. the positioning piston is actuated via a pilot valve and feedback from the swivel joke comes via the feedback piston according to the amount of travel. The advantages of this type of setting are a high stiffness and a precise volume flow or swash plate angle adjustment.
Wide operating range
CFD simulation
Efficiency measurements reveal not only high peak values but also very good values across a wide operating range. This enables efficient use in a variety of applications.
With the aid of flo w simulations, pressure losses are minimised and flow configuration in the axial piston units is optimised.
Axial Piston Pumps and Motors by Liebh err
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DPVP double pump Two parallel pumps and one splitter box have been integrated in one housing in this unit. The two pumps in an open circuit can be supplemented with an additional pump on the third output.
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Axial Piston Pumps and Motors by Liebhe rr
Application-specific developments Liebherr understands the challenges involved in the construction and layout of complex systems. Due to the diverse range of machines and end devices in the company's product portfolio, Liebherr has a great deal of application experience, which is used to good effec t in new and further developments. With a product portfolio that is unique in the market, consisting of diesel engines, splitter boxes, hydraulic pumps and motors as well as planetary gearboxes and rope winches, Liebherr also has extensive system expertise in this area. For the customer this means that components are ada pted optimally to each other with a range of integrated functions, optimal use of installation space and a high power density of the units. Integrated functions
Thanks to optimal harmonisation between splitter box and hydraulic pump or ideal adaptation of hydraulic motor and gearbox, not only is there an increase in performance and operating comfort but functions can also be integrated in the components in a space-saving manner. One such an example are the CMVE motors that feature an integrated brake valve as well as an integrated holding brake and regulation and can be installed as plug-in motors in a Liebherr travel drive.
Small installation dimensions
For particularly intensive exploitation of the installation space, several functions can be engineered together as one unit. With the DPVP hydraulic double pump, for example, one gearbox was integrated that replaces a separate splitter box, thereby making a very short installation length possible. The gearbox, which is driven by a separate oil circuit, allows high speeds thanks to an ideal transmission ratio. The component has an overall maximum efficiency with minimum installation space and is considerably cheaper than individual components.
High power density
The DMVA double motor comprises two rotating groups in one housing whose power output accumulates. The rotating group with a smaller diameter permits a higher speed than an equivalent single motor with corresponding size and thereby also a higher power output.
CMVE plug-in motor
DMVA double motor
To make best use of the installation space, the brake valve, multi-disc holding brake and the regulation have been integrated in the CMVE motors.
The double motor with narrow design is distinguished by a high power density and can be operated at higher speeds than an equivalent motor with corresponding size.
Axial Piston Pumps and Motors by Liebh err
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DPVO Variable displacement pump, open circuit
DPVD Variable displacement double pump, open circuit
DPVP Parallel pump - variable displacement, open circuit
DPVG Variable displacement pump, closed circuit
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Axial Piston Pumps and Motors by Liebhe rr
18-19
20-21
22-23
24-25
Hydraulic pumps in open and closed circuits Open circuit The axial piston pumps DPVO, DPVD and DPVP are designed for hydrostatic open circuit drives. The flow volume is proportional to the drive speed and the displacement volume. The volumetric flow can be varied steplessly by altering the angle of the swashplate.
Operating pressure range, suction side Absolute pressure at port S P abs min = 0.8 bar P abs max= 2 bar
Operating pressure range, output side Nominal pressure PN = 400 bar Maximum pressure Pmax = 450 bar
Installation position Preferred installation position: with suction port at bottom. Installation position to be avoided: controllers at bottom. An oil leakage port at the top should be arranged to drain into the tank. The pumps must be filled with oil before commissioning.
Closed circuit DPVG axial piston pumps are designed for closed circuit hydrostatic drives. The flow volume is proportional to the drive speed and displacement volume. The volumetric flow can be varied steplessly by altering the angle of the swashplate. As the swash plate begins to pivot more, the volume flow increases from zero up to the maximum value. Two high pressure relief and feed valves protect the pump and motor and are integrated directly in the DPVG. An integrated pressure cut-off is available as an option.
Operating pressure range Pressure at port A or B Nominal pressure PN = 450 bar Maximum pressure Pmax = 500 bar
General information Housing pressure The maximum housing pressure is: 2 bar under constant load 3 bar under brief load periods (cold oil with maximum viscosity) Detailed information is available on request.
Pressure fluid When choosing the pressure fluid suitable for the respective operation, please pay attention to the Liebherr “Oil filling of hydraulic pumps and motors” data sheet which is available on request. If using HF pressure fluid, i.e. environmentally-friendly pressure fluid, there may be limitations regarding the details provided in the technical datasheets. Operation with HFA, HFB and HFC pressure fluids requires additional special measures. When ordering, please state which pressure fluid will be used.
Operating viscosity For an optimum efficiency and operating time, we recommend the following optimal operating viscosity (depending on circuit resp. operating temperature) νopt = 16 ... 36 mm²/s
Viscosity limits The maximum pressure fluid temperature of 115°C must not be exceeded even locally, i.e. in the bearing area for example. For threshold conditions, the following values apply: νmin = 10 mm²/s (briefly at max. perm. temp. of tmax= 115°C) νmax = 1,600 mm²/s (briefly during cold start, i.e. tmin = -25°C) At temperatures of -25°C to -40°C, special measures are necessary. Seek advice beforehand concerning this.
Auxiliary pump The feed pump, which is integrated as an option, serves as a supply and control oil pump and is safeguarded by a feed pressure relief valve. Suction pressure Ps min = 0.8 bar absolute (Ps min = 0.5 bar absolute during cold start) Feed pressure (at 2,000 rpm) Ps = 20- 35 bar
Installation position Any position is permitted. However, an upper-mounted leakage oil connection should be chosen as a leakage oil line to the tank. The housing must be filled with the pres sure fluid and bled.
Axial Piston Pumps and Motors by Liebh err
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Series D: variable displacement pump DPVO (open circuit) Nominal pressure: 400 bar / Maximum pressure: 450 bar G D
F
I
° 5 4
A
H
C
H B
E
Nominal size Displacement
108
140
165
215
215i *
Vg max
cm3
107.7
140.2
167.8
216.6
216.6
Max. speed
at Vg max **
nmax
rpm
2,400
2,300
2,100
2,000
2,600
Volumetric flow
at nmax
qv max
L/min
258
294
352
433
563
Drive power
p =
400 bar
Pmax
kW
172
196
235
289
375
Drive torque
p =
400 bar
Tmax
Nm
685
893
1,068
1,379
1,379
*
with impeller
** These values apply with an absolute pressure of 1 bar at the suction port. Higher suction limit values are possible if the suction pressure is raised at the suction port.
Product dimensions (mm) ***
108
140
165
215
215i *
Splined shaft profile
DIN 5480 tol. 9g
W40x2x18
W45x2x21
W45x2x21
W50x2x24
W50x2x24
Centering diameter
A
152.4
152.4
152.4
165.1
165.1
Screw connecting diameter
B
228.6
228.6
228.6
-
-
Fastening bores
C
M16
M16
M16
-
-
Splined shaft length
D
60
66
63.7
65
65
SAE connection length, suction side
E
234.5
257.0
276.5
326
335
SAE connection length, pressure side F
250.5
259
260.5
329.5
319
Overall length
G
310.5
344
347.5
405
398
Connection pitch
H
-
-
-
224.5
224.5
Fastening bores
I
-
-
-
M20
M20
Pressure port
SAE J518 (6,000 psi)
1"
1 1/4"
1 1/4"
1 1/2"
1 1/2"
Suction port
SAE J518 (500 psi)
2 1/2"
3"
3"
3 1/2"
3 1/2"
Oil leakage port
ISO 9974-1
M26x1.5
M26x1.5
M26x1.5
M33x2
M33x2
*** Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: Various mounting flanges are possible (SAE J617a, SAE J744, DIN/ISO 3019-2). Integrated gear pump for control circuit oil is possible. Through-drive for pumps up to the same size as the installed pump is possible.
Control / regulation
Other control function combinations available on request.
Electric proportional adHydraulic adjustment pro justme nt (posi tive or nega - portional to control prestive characteristic curve) sure (positive or negative characteristic curve)
I
px
V g min
18
V g max
V g min
V g max
Axial Piston Pumps and Motors by Liebhe rr
Pressure control or pressure cut-off
Hyperbolic power regulation
Load Sensing
pB
pB
pB
V g min
V g max
V g min
V g max
V g min
Cumulative power regulation
Fan drive regulation
p1+2
V g max
V g min
pB
V g max
LU
I
Type code for DPVO pumps DPV
Pump type Variable displac ement pump, series D
O
/
DPV
Circuit type Open
O
Nominal size 108 140 165 215 Minimum displacement* 0 - 15 % of V g max, value in cm 3 /U * Other values on request Control / regulation* Electric proportional adjustment / pressure cut-off Hyperbolic power regulation / load sensing Hyperbolic power regulation / hydraulic adjustment proportional to control pressure / pressure cut-off Electric proportional adjustment / load sensing Fan drive regulation Pressure control or pressure cut-off Cumulative power regulation / hydraulic adjustment proportional to control pressure Load sensing / pressure cut-off Preparation for electro-hydraulic control Integrated electro-hydraulic control * Other controls on request
•
•
•
•
• • • • • • • •
• • • • • • • •
• • • • • • • •
• • • • • • • •
EL / DA LR / LS LR / SD / DA EL / LS LU DA SL / SD LS/DA EHC0 EHC1
Design
1 Direction of rotation (looking at input shaft)** Right Left ** Availability of impeller see below Mounting flange*** Diesel engine flange SAE 1 (SAE J617a) Diesel engine flange SAE 2 (SAE J617a) Diesel engine flange SAE 3 (SAE J617a) Diesel engine flange SAE 4 (SAE J617a) SAE D (SAE J744) SAE E (SAE J744) DIN / ISO 3019-2 Non-standard flange *** Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft SAE J744
•
•
• •
• •
R L
•
•
•
11 12 13 14 24 25 31 ... 51 ...
• • • • - - - • • • •
•
•
•
•
1 2
•
•
•
•
A
B
C
Connections
High-pressure port: SAE (6,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure port: SAE (3,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3852) All ports: metri c thread Atta chme nts Without impeller with direction of rotation right
Without impeller with direction of rotation left With impeller with direction of rotation right With impeller with direction of rotation left External pumps Integrated gear-type pump for control circuit oil Without gear pump With gear pump, V g = 24 cm 3 with connections for external feed circuit filtering (Fe and Fa)
Through-drive Without through-drive SAE A SAE B SAE C SAE D SAE E Non-standard flange with through-drive Sensor technology Without With swash plate angle sensor With pressure sensor With speed sensor
•
•
•
•
•
•
F
• •
•
• •
•
00 24
• • • •
• • • •
•
•
• •
•
•
•
•
O I
0 A B C D E K 0 W P D
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
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Series D: double variable displacement pump DPVD
(open circuit)
Nominal pressure: 400 bar / Maximum pressure: 450 bar F D
E
C
A
B
B
All data for one rotating group
Nominal size Displacement
108
Vg max
cm3
107.7
Max. speed
at Vg max*
nmax
rpm
2,200
Volumetric flow
at nmax
qv max
L/min
237
Drive power
p =
400 bar
Pmax
kW
158
Drive torque
p
= 400 bar
Tmax
Nm
686
*
These values apply with an absolute pressure of 1 bar at the suction port. Higher suction limit values are possible if the suction pressure is raised at the suction port.
Product dimensions (mm)**
108
Splined shaft profile
DIN 5480 tol. 9g
W40x2x18
Centering diameter
A
200
Screw connection pitch
B
250
Fastening bores
C
17
Splined shaft length
D
66
Connection length, SAE flanges (suction and pressure)
E
238
Shaft collar / mounting flange
F
476
Pressure ports
SAE J518 (6000 psi)
1”
Suction port
SAE J518 (500 psi)
3”
Oil leakage port
ISO 9974-1
M33x2
** Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Control / regulation Electric proportional adjustment
Pressure control or pressure cut-off pB
I
V g min
20
Other control function combinations available on request.
V g max
V g min
Axial Piston Pumps and Motors by Liebhe rr
V g max
Type code for DPVD pumps DPVD
Pump type Double variable displacement pump, series D Circuit type Open
O
/
DPVD
O
Nominal size (per rotating group) 108 Minimum displacement (per rotating group)* 0 - 15 % of Vg max, value in cm3 * Other values on request Control / regulation** Electric proportional adjustment / pressure cut-off Hyperbolic power regulation / load sensing Hyperbolic power regulation / hydraulic adjustment proportional to control pressure / pressure cut-off Electric proportional adjustment / load sensing Fan drive regulation Pressure control or pressure cut-off Cumulative power regulation / hydraulic adjustment proportional to control pressure Load sensing / pressure cut-off Preparation for electro-hydraulic control Integrated electro-hydraulic control ** Other controls on request
•
•
EL / DA LR / LS LR / SD / DA EL / LS LU DA SL / SD LS/DA EHC0 EHC1
Design 1 Direction of rotation (looking at input shaft) Right Left Availability of impeller see below Mounting flange*** Diesel engine flange SAE 1 (SAE J617a) Diesel engine flange SAE 2 (SAE J617a) Diesel engine flange SAE 3 (SAE J617a) Diesel engine flange SAE 4 (SAE J617a) SAE D (SAE J744) DIN / ISO 3019-2 Non-standard flange *** Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft SAE J744
•
•
R L
11 12 13 14 24 31… 51…
1 2
•
A
B
C
•
O I F
•
Connections High-pressure port: SAE (6,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure port: SAE (3,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3852) All ports: metric thread Att ach men ts No attachment With impeller External pump Integrated gear pump for control circuit oil Without gear pump With gear pump, Vg = 24 cm3 with connections for external feed circuit filtering (Fe and Fa)
Through-drive Without through-drive SAE A SAE B Non-standard flange with through-drive
•
00 24
0
•
A B
K
•
0 W P D
Sensor technology
Without With swash plate angle sensor With pressure sensor With speed sensor
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
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Series D: parallel variable displacement pump DPVP Nominal pressure: 400 bar / Maximum pressure: 450 bar
(open circuit)
G F E D
C
B
A
All data for each rotating group
Nominal size Displacement
108
108
165
165i*
Vg max
cm3
107.7
107.7
167.8
167.8
Max. speed
at Vg max **
nmax
rpm
2,300
2,300
2,100
2,600
Volumetric flow
at nmax
qv max
L/min
248
248
352
436
Drive power
p =
400 bar
Pmax
kW
165
165
235
291
Drive torque
p =
400 bar
Tmax
Nm
686
686
1,068
1,068
*
with impeller.
** These values apply with an absolute pressure of 1 bar at the suction port. Higher suction limit values are possible if the suction pressure Pabs is raised at the suction port.
Product dimensions (mm)***
108 (SAE-1)
108 (SAE-2) 165
165i*
Splined shaft profile
DIN 5480 tol. 9g
W50x2x24
W50x2x24
W70x3x22
W70x3x22
Centering diameter
A
511.18
447.7
511.18
511.18
Screw connecting diameter
B
530.2
466.7
530.2
530.2
Fastening bores
C
11
11
11
11
Splined shaft length
D
27
73.4
50.5
50.5
Shaft collar / mounting flange
E
46
0
26.5
26.5
Connection length, SAE flanges
F
369.4
323
423
423
Overall length
G
462
416
517.9
605.9
Pressure ports
SAE J518 (6,000 psi)
1"
1"
1 1/4"
1 1/4"
Suction port
SAE J518 (500 psi)
3"
3"
4"
3" (2x/pump)
M33x2
M33x2
M33x2
M33x2
Oil leakage port
*** Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: DPVP pumps can be used in single or twin circuit systems. Integrated gear pump for control circuit oil (24 cc) standard on output II, other versions on request. Direction of rotation of output: right for variant SAE-1 and left for variant SAE-2. Through-drives to output I and/or output II are possible. Different transmission ratios are possible. Additional data on request.
Control / regulation
Other control function combinations available on request.
Electric proportional adjust- Hydraulic adjustment proportional Pressure control or ment (positive or negative to control pressure (positive or pressure cut-off characteristic curve) negative characteristic curve)
px
I
V g min
22
V g max
V g min
Axial Piston Pumps and Motors by Liebhe rr
pB
pB
V g max
V g min
Hyperbolic power regulation
V g max
V g min
Load Sensing
p1+2
pB
V g max V g min
Cumulative power regulation
V g max
V g min
V g max
Type code for DPVP pumps DPVP
Pump type Parallel variable displacement pump, series D
O
/
DPVP
Circuit type Open
O
Nominal size (per rotating unit) 108165
Minimum displacement (per rotating unit)* 0 - 15 % of Vg max, value in cm3 * Other values on request Control / regulation** Electric proportional adjustment / pressure cut-off Hyperbolic power regulation / load sensing Hyperbolic power regulation / hydraulic adjustment proportional to control pressure/ pressure cut-off Electric proportional adjustment / load sensing Fan drive regulation Pressure control or pressure cut-off Cumulative power regulation / hydraulic adjustment proportional to control pressure Load sensing / pressure cut-off Preparation for electro-hydraulic control Integrated electro-hydraulic control ** Other controls on request
EL / DA • LR / LS • LR / SD / DA • EL / LS LU DA • • SL / SD LS/DA EHC0 EHC1
• • •
Design 1 Direction of rotation (looking at input shaft) Right Left Availabilit y of impeller see below Mounting flange*** Diesel engine flange SAE 1 (SAE J617a) Diesel engine flange SAE 2 (SAE J617a) *** Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft S AE J744
• -
• -
R L
• •
• -
11 12
•
•
1 2
•
•
A
B
All ports: metric thread
C
Att ach men ts No attachment With impeller External pumps
• • - •
O I F
Connections High-pressure port: SAE (6,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure port: SAE (3,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3852)
Integrated gear pump for control circuit oil Without gear pump With gear pump, Vg = 24 cm 3 with connections for external feed circuit filtering (Fe and Fa)
Through-drive (side P1 and / or P2) Without through-drive SAE A SAE B SAE C SAE D Sensor technology Without With swash plate angle sensor With pressure sensor With speed sensor
•
•
• •
• •
•
•
00 24
0 A B C D
0 W P D
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
23
Series D: variable displacement pump DPVG (closed circuit) Nominal pressure: 450 bar / Maximum pressure: 500 bar B
D 9
E
A
B
C
F G H
Nominal size Displacement
85
108
165
280
Vg max
cm3
85.2
107.7
167.8
283.4
Max. speed
at Vg max
nmax
rpm
3,300
3,000
2,700
2,500
Volumetric flow
at nmax
qv max
L/min
281
323
453
709
Drive power
p =
430 bar
Pmax
kW
201
232
325
508
Drive torque
p =
430 bar
Tmax
Nm
583
737
1,149
1,940
85
108
165
280
Product dimensions (mm)* Splined shaft profile
DIN 5480 tol. 9g
W35x2x16
W45x2x21
W45x2x21
W55x2x26
Centering diameter
A fit e8
160
152
200
165.1
Screw connecting diameter
B
141.4
161.6
176.8
224.5
Fastening bores
C
17
21
21
22
Splined shaft length
D
50
55
60
68
Height adjustment
E
177.6
190
205
225.5
SAE connection length, pressure
F
223.5
223
270
295.5
Length without/with integrated feed pump
G
271.5 / 322.5
268 / 315.5
322/381
360 / -
Overall length
H
340.6
330.5
358.5
395
Pressure ports
SAE J518 (6,000 psi)
1"
1"
1 1/4"
1 1/2"
Oil leakage port
ISO 9974-1
M26x1.5
M33x2
M42x2
M42x2
*
Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: Various mounting flanges are possible (SAE J617a, SAE J744, DIN/ISO 3019-2). With/without integrated feed pump; integrated pressure limiting valve is possible. Through-drive for pumps up to the same size as the installed pump is possible. HD ports are possible at the side or underneath.
Control / regulation
Other control function combinations available on request.
Electric proportional adjustment
Hydraulic proportional adjustment depending on control pressure
I
px
Pressure cut-off
Torque control, hydraulic, with pressure cut-off
pB
p A,B pxB
-V g max
24
0
+V g max
-V g max
Axial Piston Pumps and Motors by Liebhe rr
0
+V g max
-V g max
0
+V g max
-V g max
Torque control, electric, with pressure cut-off
TCH
p A,B
pxA
0
IxB
+V g max
-V g max
TCE IxA
0
+V g max
Type code for DPVG pumps G
DPV
Pump type Variable displacement pump, seri es D
/
DPV
Circuit type Closed
G
Nominal size 85 108 165 280
Minimum displacement Vg min = 0 cm³ Control / regulation* Electric proportional adjustment / pressure cut-off Electric proportional adjustment Hydraulic proportional adjustment depending on control pressure Torque control, hydraulic, with pressure cut-off Torque control, electric, with pressure cut-off Speed control, hydraulic Speed control, electric Preparation for electro-hydraulic control Integrated electro-hydraulic control * Other controls on request
•
•
•
•
•
•
•
•
000
EL / DA EL SD TCH TCE DZH DZE EHC0 EHC1
•
•
• •
• •
•
• •
Design 1
Direction of rotation (looking at input shaft) Right Left
Mounting flange*** Diesel engine flange SAE 1 (SAE J617a) Diesel engine flange SAE 2 (SAE J617a) Diesel engine flange SAE 3 (SAE J617a) Diesel engine flange SAE 4 (SAE J617a) SAE D (SAE J744) SAE E (SAE J744) DIN / ISO 3019-2 Transmission flange Non-standard flange *** Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft SAE J744 Connections High-pressure port: SAE (6,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3 852) High-pressure port: SAE (3,000 PSI) Suction port: SAE (500 PSI) Oil leakage and control pressure ports: metric (DIN 3 852) All ports: metric thread Attach ments No attachment With impeller External pump Integrated feed pump** Without feed pump With feed pump, Vg = 30 cm 3 With feed pump, Vg = 40 cm 3 With feed pump, Vg = 50 cm 3 With feed pump, attached filter and cold start valve ** Other nominal sizes on request
Through-drive Without through-drive SAE A SAE B SAE C SAE D SAE E Non-standard flange with through-drive Valve High pressure limiting valve with feed function High pressure limiting valve with feed function with feed pressure valve Sensor technology Without With swash plate angle sensor With pressure sensor With speed sensor
• •
• •
• •
• •
R L
•
•
•
•
11 12 13 14 24 25 31… 41… 51…
1 2
•
•
•
•
• • •
• • •
• • •
B
C
• -
• -
• -
• -
O I F
• • •
• • •
•
•
•
•
•
A
•
00 30 40 50 F
•
•
•
•
•
0 A B C D E K
• •
• •
• •
• •
NS-DB NS-DB-DS 0 W P D
•
•
•
•
• Available On request - No t available
Axial Piston Pumps and Motors by Liebh err
25
DMVA Variable displacement motor
DMFA Fixed displacement motor
DMVA Variable displacement double motor
CMVE Variable displacement plug-in motor, open circuit
LMF Fixed displacement motor
FMF Fixed displacement plug-in motor
FMV Variable displacement plug-in motor
26
Axial Piston Pumps and Motors by Liebhe rr
28-29
30-31
32-33
34-35
36-37
38-39
40-41
Hydraulic motors The Liebherr axial piston motors are engineered for swashplate applications and are designed for hydrostatic drive systems in open and closed circuits. The motors are suitable for mobile use. Through-drives and the attachment of holding brakes can be arranged on request.
Operating pressure range Pressure at port A or B. Nominal pressure and maximum pressure: see technical data on the following pages.
Installation position Any position is permitted. However, an upper-mounted leakage oil connection should be chosen as a leakage oil line to the tank. The housing must be filled with the pressure fluid and bled before commis sioning.
Housing pressure The maximum housing pressure is: 2 bar under constant load 3 bar under brief load periods (cold oil with maximum viscosity) Detailed information is available on request.
General information Pressure fluid When choosing the pressure fluids suitable for the respective operation, please comply with the Liebherr “Oil filling of hydraulic pumps and motors” data sheet which is available on request. If using HF pressure fluid, i.e. environmentally-friendly pressure fluid, there may be limitations regarding the details provided in the technical datasheets. Operation with HFA, HFB and HFC pressure fluids requires additional special measures. When ordering, please state which pressure fluid has been used.
Operating viscosity range For an optimum efficiency and operating time, we recommend the following optimal operating viscosity (depending on circuit resp. operating temperature) νopt = 16 ... 36 mm²/s.
Viscosity threshold The maximum pressure fluid temperature of 115°C must not be exceeded even locally, i.e. in the bearing area for example.
For threshold conditions, the following values apply: νmin = 10 mm²/s (briefly at max. perm. temp. of tmax= 115°C) νmax =
1,600 mm²/s (briefly during cold start, i.e. tmin = -25°C)
At temperatures of -25°C to -40°C, special measures are necessary. Seek advice beforehand concerning this.
Axial Piston Pumps and Motors by Liebh err
27
Series D: DMVA motor NG108, NG165 and NG215: NG355:
(variable displacement)
Closed circuit – nominal pressure: 450 bar / maximum pressure: 500 bar Open and closed circuit – nominal pressure: 380 bar / maximum pressure: 400 bar F E D 9
C
A
B
B
Nominal size Displacement
108
165
215
355
Vg max
cm3
107.7
167.8
216.5
355.6
Max. speed
at Vg max and p max
nmax
rpm
3,350
3,000
2,700
2,400
Max. speed
at Vg / Vg max = 0.65 and p = 200 bar
nmax
rpm
5,125
4,590
4,100
3,670
Flow
at nmax
qv max
L/min
361
503
584
853
Output power
p = 430 bar, NG355 with p =
360 bar Pmax
kW
259
361
419
512
Output torque
p = 430 bar, NG355 with p =
360 bar Tmax
Nm
737
1149
1,481
2,151
108
165
215
355
Product dimensions (mm)* Splined shaft profile
DIN 5480 tol. 9g
W40x2x18
W45x2x21
W50x2x24 W60x2x28
Centering diameter
A fit h8
160
180
200
250
Screw connection pitch
B
141.4
158.4
176.7
352x120
Fastening bores
C
17
18
22
26
Splined shaft length
D
54
60
65
78
SAE connection length, pressure
E
309
357
-
-
Overall length
F
345
376
435
433.5
Pressure ports
SAE J518 (6,000 psi)
1"
1 1/4"
1 1/4"
1 1/2"
Oil leakage port
ISO 9974-1
M26x1.5
M26x1.5
M33x2
M33x2
*
Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: A brake valve can be attached. The pressure ports can be at the rear or side on the connecting plate.
Control / regulation Electrical adjustment with proportional magnet (positive or negative characteristic curve)
28
Hydraulic adjustment, depending on control pressure (positive or negative characteristic curve) px
I
V g min
Other control function combinations available on request.
V g max
V g min
Axial Piston Pumps and Motors by Liebhe rr
Pressure cut-off
V g min
V g max
V g min
Hydraulic two-point control
px
pB
pB
V g max
Hydraulic adjustment, high-pressure related
V g max
V g min
V g max
Type code for DMVA motors
/
DMVA
Motor type Variable displacement motor, series D
DMVA
Circuit type Open Closed
O G
Nominal size 108165215355
• • • •
Minimum displacement* 0 - 66 cm 3 41.2 - 151.9 cm 3 270 cm 3 (non-adjustable) 100 cm 3 (adjustable) * Other values on request Control / regulation Hydraulic adjustment, high-pressure related Hydraulic adjustment depending on control pressure / pressure cut-off Electrical adjustment with proportional magnet Hydraulic two point control Electrical adjustment with proportional magnet / pressure cut-off Oversteering Preparation for electro-hydraulic control Integrated electro-hydraulic control
• -
- • - -
- 000 - 066 - 041.2 - 151.9 270 • • 000 - 100
• • - • • • • • • - • • • • •
HD SD / DA EL ZH EL / DA UE
EHC0
EHC1
Design 1
Direction of rotation (looking at input shaft) Right Left Alternating Mounting flange** DIN / ISO 3019-2 Non-standard flange ** Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft SAE J744 Connections High-pressure ports: SAE (6,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure ports: SAE (3,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) All ports: metri c thread Add itio nal e qui pme nt No attachment Through-drive Without through-drive Non-standard through-drive Valve / Sen sor Without High pressure limiting valve Hydraulically adjustable high pressure relief valve Flushing for closed circuit Flushing for closed circuit with high pressure relief valve Flushing for open circuit Flushing for open circuit with high pressure relief valve Resuction valve with high pressure relief valve Resuction valve with hydraulically adjustable high pressure relief valve Hydraulically adjustable high pressure relief valve with one-rotation-direction valve High pressure relief valve with brake valve Sensor Without With speed sensor With swash plate angle sensor With pressure sensor
-
-
-
-
-
-
-
-
R L
• • • •
W
• • •
31…
-
•
51…
• • • •
1
2
• • • •
A
B
-
-
-
-
C
• • • •
0
• • •
0
•
K
• • • • •
0 OH
OX
• • •
SO
SH
•
MO
MH
NH
NX
XL
• • •
BH
• • • • • • •
D
W
P
0
• Available On request - Not available Axial Piston Pumps and Motors by Liebh err
29
Series D: DMFA motor
(fixed displacement)
Open and closed circuit – Nominal pressure: 380 bar / Maximum pressure: 400 bar F E D 9
G
G
B A
B
C
Nominal size
355
Displacement
Vg max
cm3
355.6
Max. speed
at Vg max and p = 360
nmax
rpm
2,400
Flow
at nmax
qv max
L/min
853
Output power
p =
360 bar
Pmax
kW
512
Output torque
p =
360 bar
Tmax
Nm
2,037
Product dimensions (mm)*
355
Splined shaft profile
DIN 5480 tol. 9g
W60x2x28
Centering diameter
A fit h8
200
Screw connection pitch
B
152
Fastening bores
C
26
Splined shaft length
D
78
SAE connection length, pressure
E
351.5
Overall length
F
405.5
Screw connection pitch
G
25
Pressure ports
SAE J518 (6,000 psi)
1 1/2"
Oil leakage port
ISO 9974-1
M33x2
*
Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: Flushing valve integrated into connection plate. External brake valve can be attached to SAE port. An external Liebhe rr multi-disc brake can be attache d (non-standard flange with through drive shaft).
30
Axial Piston Pumps and Motors by Liebhe rr
Type code for DMFA motors
DMFA
Motor type Fixed displacement motor, series D Circuit type Open Closed
/
DMFA
O G
Nominal size 355
Control / regulation No regulation
•
00
Design 1 Direction of rotation (looking at input shaft) Right Left Alternati ng Mounting flange* DIN / ISO 3019-2 Non-standard flange * Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft SAE J744 Connections High-pressure ports: SAE (6,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure ports: SAE (3,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) All por ts: metric thread Additi onal equi pment No attachment Multi-disc brakes Through-drive Without through-drive (closed) Non-standard through-drive Valve None High pressure limiting valve Hydraulically adjustable high pressure relief valve Flushing for closed circuit Flushing for closed circuit with high pressure relief valve Flushing for open circuit Flushing for open circuit with high pressure relief valve Resuction valve with high pressure relief valve Resuction valve with hydraulically adjustable high pressure relief valve High pressure relief valve with brake valve Sensor None With speed sensor With swash plate angle sensor With pressure sensor
•
R L W
31 ... 51 ...
•
1 2
•
A
B
C
•
0 L
•
•
•
•
• •
0 K
0 OH OX SO SH MO MH NH NX BH
0 D W P
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
31
Series D: DMVA double motor
(variable displacement)
Closed circuit – nominal pressure: 450 bar / maximum pressure: 500 bar H G D 13
E
F
C
I
A
B
B
Nominal size Displacement
165-108
165-165
Vg max
cm3
275
335
Max. speed
at Vg max and p = 430 bar
nmax
rpm
3,000
3,000
Max. speed
at Vg / Vg max = 0.65 and p = 200 bar
nmax
rpm
4,590
4,590
Flow
at nmax
qv max
L/min
825
1,005
Output power
p =
430 bar
Pmax
kW
591
720
Output torque
p =
430 bar
Tmax
Nm
1,883
2,294
165-108
165-165
Product dimensions (mm) * Splined shaft profile
DIN 5480 tol. 9g
W45x2x21
W45x2x21
Centering diameter
A fit h8
180
180
Screw connection pitch
B
158.4
158.4
Fastening bores
C
18
18
Splined shaft length
D
58
68
Regulator width dimension
E
159
159
SAE flange width dimension
F
145
145
Connection length, SAE flanges
G
277
277
Overall length
H
547.2
567
Overall width
I
247
252
Pressure ports
SAE J518 (6,000 psi)
1 1/4"
1 1/4"
Oil leakage port
ISO 9974-1
M26x1.5
M26x1.5
*
Dimensions may vary according to configuration and additional equipment (installation drawing on request)
Note: Through-drive possible.
Control / regulation Electrical adjustment with proportional magnet (positive or negative characteristic curve)
32
Pressure cut-off
pB
I
V g min
Other control function combinations available on request.
V g max
Axial Piston Pumps and Motors by Liebhe rr
V g min
Hydraulic adjustment, depending on control pressure (positive or negative characteristic curve) px
V g max
V g min
V g max
Type code for DMVA motors
DMVA
Motor type Variable displacement double motor, Series D
G /
DMVA
Circuit type Closed
G
Nominal size 165-108 165-165
Minimum displacement* 0 - 100 cm 3 * Other values on request Control / regulation Electric proportional adjustment Electric proportional adjustment / pressure cut-off Hydraulic adjustment depending on control pressure / pressure cut-off Electric proportional adjustment / pressure cut-off / oversteering Hydraulic adjustment depending on control pressure / pressure cut-off / oversteering Preparation for electro-hydraulic control Integrated electro-hydraulic control
•
•
•
•
• •
• • • • •
SD / DA / UE
EHC0
EHC1
• •
000 - 100
EL EL / DA SD / DA EL / DA / UE
Design 1
Direction of rotation (looking at input shaft) Right Left Alternating Mounting flange** DIN / ISO 3019-2 Non-standard flange ** Other mounting flanges on request Shaft end Splined shaft DIN 5480 Splined shaft SAE J744 Connections High-pressure ports: SAE (6,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure ports: SAE (3,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) All ports: metri c thread Add itio nal e qui pme nt No attachment Through-drive Without through-drive (closed) Non-standard through-drive Valve None High pressure relief valve Hydraulically adjustable high pressure relief valve Flushing for closed circuit Flushing for closed circuit with high pressure relief valve Flushing for open circuit Flushing for open circuit with high pressure relief valve Resuction valve with high pressure relief valve Resuction valve with hydraulically adjustable high pressure relief valve High pressure relief valve with brake valve Sensor None With speed sensor With swash plate angle sensor With pressure sensor
-
-
-
-
L
•
•
W
•
•
31…
51…
R
•
•
1
2
•
•
A
B
C
•
•
O
•
• •
K
0
0
•
•
OH
OX
SO
SH
MO
MH
NH
NX
BH
• •
• •
D
W
P
0
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
33
Series C: CMVE variable displacement plug-in motor
(open circuit)
Nominal pressure: 380 bar / Maximum pressure: 400 bar G D
E
F
B
A
C
Nominal size Displacement
85
108
135
165
Vg max
cm3
85.2
108
135.7
165.9
Max. speed
at Vg max and p = 360 bar
nmax
rpm
3,900
3,470
3,250
3,000
Max. speed
at Vg min and p = 200 bar
nmax
rpm
5,000
4,500
4,550
4,200
Flow
at nmax
qv max
L/min
332
375
441
498
Output power
p =
360 bar
Pmax
kW
199
225
265
299
Output torque
p =
360 bar
Tmax
Nm
488
619
778
951
85
108
135
165
Product dimensions (mm)* Splined shaft profile (internal gear)
DIN 5480 Tol. 9H/9g
W32x1.25x24
N35x 2x16
W40x 2x18
N40x2x18
Centering diameter
A fit h8
200
215
226
240
Screw connection diameter
B
222**
238**
248**
265**
Fastening bores
C
13
15
15
17
Splined shaft length
D
24.5
26.5
31.5
37.5
Insertion length
E
117
122
132
137
Connection length, SAE flanges
F
135
150
160
182
Overall length
G
303
312.5
332.5
374
Pressure ports
SAE J518 (6000 psi) / ISO
M33x2
1"
1''
1 1/4"
Oil leakage port
ISO 9974-1
M26x1.5
M26x1.5
M26x1.5
M26x1.5
* Dimensions may vary according to configuration and additional equipment (installation drawing on request). ** 4-hole special attachment flange.
Note: Integrated brake valve with automatic brake release, flushing, pressure limiting valves and internal multi-disk brake. This motor is mainly intended for installation in a mechanical travel drive.
Control / regulation Hydraulic two point control
pB
px
V g min
34
Pressure control or pressure cut-off
V g max
V g min
Axial Piston Pumps and Motors by Liebhe rr
V g max
Type code for CMVE motors
CMVE
Motor type Variable displacement plug-in motor, series C
O
/
CMVE
Circuit type Open
O
Nominal size
Minimum displacement* Vg min= 38.6 (cm3 ) Vg min= 44.9 (cm3 ) Vg min= 50.25 (cm3 ) Vg min= 53.9 (cm3 ) Vg min= 65 (cm3 ) Vg min= 75 (cm 3 ) Vg min= 81 (cm 3 ) Vg min= 106 (cm3 ) Vg min= 117 (cm 3 ) * Other values on request Control / regulation Hydraulic two point control Pressure control or pressure cut-off
85
108
135
165
•
•
•
•
• • • • -
• • -
• -
• •
• •
• -
• -
• -
ZH DA
Design 1
Direction of rotation (looking at input shaft) Right Left Alternating
•
•
•
•
W
Mounting flange Non-standard flange
•
•
•
•
51…
Shaft end Splined shaft DIN 5480 Splined shaft SAE J744
•
•
•
•
1
2
-
•
•
•
A
B
•
-
-
-
C
Connections High-pressure ports: SAE (6,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) High-pressure ports: SAE (3,000 PSI) Oil leakage and control pressure ports: metric (DIN 3852) All ports: metri c thread
R L
Add itio nal e qui pme nt No attachment Multi-disc brakes
0
•
•
•
•
L
Through-drive Without through-drive (closed) Non-standard through-drive
• -
• -
• -
• -
K
0
OH
OX
MO
MH
NH
NX
•
•
•
•
BH
Valve None High pressure relief valve Hydraulically adjustable high pressure relief valve Flushing for open circuit Flushing for open circuit with high pressure relief valve Resuction valve with high pressure relief valve Resuction valve with hydraulically adjustable high pressure relief valve High pressure relief valve with brake valve Sensor None With speed sensor With swash plate angle sensor With pressure sensor
0
•
•
•
•
0
D
W
P
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
35
Series A: LMF motor
(fixed displacement)
Open and closed circuit – Nominal pressure: 350 bar / Maximum pressure: 380 bar
F D
E C ° 5 4
B
A
Nominal size Displacement
107
125
Vg max
cm3
107.7
125.6
Max. speed
at Vg max and p = 330 bar
nmax
rpm
3,540
3,290
Flow
at nmax
qv max
L /min
381
413
Output power
p =
330 bar
Pmax
kW
210
227
Output torque
p =
330 bar
Tmax
Nm
566
660
107
125
Product dimensions (mm)* Splined shaft profile
DIN 5480 tol. 9g
W40x2x18
W40x2x18
Centering diameter
A fit h8
160
160
Screw connecting diameter
B
200
200
Fastening bores
C
18
18
Splined shaft length
D
45
45
SAE connection length, pressure
E
253.0
253.0
Overall length
F
292.0
292.0
Pressure ports
SAE J518 (6,000 psi)
3/4''
1 1/4"
R 3/4"
R 3/4"
Oil leakage port *
Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: External brake valve can be attached to SAE port.
36
Axial Piston Pumps and Motors by Liebhe rr
Type code for LMF motors
LMF
Motor type Fixed displacement motor, series A
/
LMF
Nominal size 107 125 •
•
Series 1
Control / regulation No regulator Valve s None High pressure relief valve Hydraulically adjustable high pressure relief valve Flushing for closed circuit Flushing for closed circuit with high pressure relief valve Flushing for open circuit Flushing for open circuit with high pressure relief valve Resuction valve with high pressure relief valve Resuction valve with hydraulically adjustable high pressure relief valve Resuction valve with high pressure relief valve with damping Flushing for open circuit with one-rotation-direction valve One-rotation-direction valve High pressure relief valve and one-rotation-direction valve Hydraulically adjustable high pressure relief valve with one-rotation-direction valve Flushing for closed circuit with one-rotation-direction valve Mounting flange ISO 4-hole flange Through-drive Without through-drive Non-standard through-drive Add itio nal f unc tio n Speed sensor
•
•
00
•
•
00
OH
OX
SO
SH
MO
MH
NH
NX
NHD
ML
OL
HL
XL
SL
•
•
6
•
•
00
10
D
• Available
On request
- Not available
Axial Piston Pumps and Motors by Liebh err
37
Series A: FMF plug-in motor
(fixed displacement)
Open and closed circuit – Nominal pressure: 350 bar / Maximum pressure: 380 bar On request up to nom. size 64 – Nominal pressure: 420 bar / Maximum pressure: 450 bar G D
E
F
C
A
Nominal size
B
25
32
45
58
64
90
100
125
165
250
Vg max
cm3
25
31.8
45.6
58.3
64.3
90.7
103.2
125.6
165.9
256.8
nmax
rpm
5,180
5,180
4,620
4,110
4,110
3,670
3,540
3,290
3,000
2,606
Absorption current at nmax
qv max
L/min
130
165
211
240
264
333
365
413
498
669
Output power
p =
330 bar
Pmax
kW
71
91
116
132
145
183
201
227
274
368
Output torque
p =
330 bar
Tmax
Nm
131
167
240
306
338
477
542
660
872
1,349
25
32
Displacement Max. speed
at Vg max and p = 330 bar
Product dimensions (mm)*
45
58
64
90
100
125
165
250
Splined shaft profile
DIN 5480 tol. 9g
Centering diameter
A fit h8
135
135
160
170
170
190
190
210
230
260
Screw connecting pitch
B
160
160
200
200
200
224
224
248
280
310
Fastening bores
C
13
13
18
17
17
21
21
21
26
26
Splined shaft length
D
30
30
35
40
40
40
45
45
50
55
Insertion length
E
88.5
88.5
92.3
92.3
92.3
110.5
110.5
122.8
130
145
Connection length, SAE flanges
F
91
91
99.7
122.7
122.7
124
124
142
155
163 2/3
Overall length
G
134.5
134.5
156.2
163.7
163.7
159
159
179.2
201
214
Pressure ports
SAE J518 (6,000 psi)
1/2"
1/2"
3/4"
1"
1"
1 1/4"
1 1/4"
1 1/4"
M16x1.5
M16x1.5
Oil leakage port *
W25x1.25x18 W25x1.25x18 W30x2x14 W35x2x16 W35x2x16 W35x2x16 W40x2x18 W40x2x18 W45x2x2 1 W50x2 x24
M18x1.5
M18x1.5
M26x1.5
R 3/4"
R 3/4"
Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: External brake valve can be attached to SAE port.
38
M18.1.5
3/4" or 1" 1"
Axial Piston Pumps and Motors by Liebhe rr
M33x2
M33x2
Type code for FMF motors
FMF
/
Motor type Fixed displacement plug-in motor, series A
FMF
Nominal size 25 32 45 58 64 90 100 125 165 250
• • • • • • • • • • Series 1 Control / regulation No regulator
• • • • • • • • • •
00
None
•
•
High pressure relief valve
Hydraulically adjustable high pressure relief valve
Valves
•
00
OH
OX
Flushing for closed circuit
• • • • • • •
SO
Flushing for closed circuit with high pressure relief valve
Flushing for open circuit
Flushing for open circuit with high pressure relief valve
Resuction valve with high pressure relief valve
• • • • • •
Resuction valve with hydraulically adjustable high pressure relief valve
• • • •
SH
•
•
MO
•
•
MH
•
NH
NX
Resuction valve with high pressure relief valve with damping
•
NHD
Flushing for open circuit with one-rotation-direction valve
ML
One-rotation-direction valve
High pressure relief valve and one-rotation-direction valve
Hydraulically adjustable high pressure relief valve with one-rotation-direction valve
Flushing for closed circuit with one-rotation-direction valve
Right
• • • •
Left
• • •
Alternating
OL
HL
XL
SL
•
R
•
L
• • • • • • • • • •
W
• • • • • • • • • •
7
Without through-drive
• • • • • • • • • •
00
Non-standard through-drive
-
-
- -
10
• • • • • • •
D
Direction of rotation (looking at input shaft)
• •
Mounting flange 2-hole flange Through-drive - -
-
- -
-
Additi onal func tion Speed sensor
• Available
On request
- Not available
Axial Piston Pumps and Motors by Liebh err
39
Series A: FMV variable displacement plug-in motor Nominal pressure: 350 bar / Maximum pressure: 380 bar On request or nom. size 75 – Nominal pressure: 420 bar / Maximum pressure: 450 bar G F D
C
E
A
B
Nominal size Displacement
75
100
140
165
250
Vg
cm3
75
103.2
141.2
165.8
256.8
Max. speed
at Vg max and p = 330 bar
nmax
rpm
3,900
3,540
3,160
3,000
2,600
Max. speed
at Vg / Vg max = 0.65 and p = 200 bar
nmax
rpm
5,460
4,950
4,420
4,200
3,640
Flow
at nmax
qvmax
L/min
293
365
446
497
668
Output power
p =
330 bar
Pmax
kW
161
201
245
274
367
Output torque
p =
330 bar
Tmax
Nm
394
542
742
871
1,349
Product dimensions (mm)*
75
100
140
165
250
Splined shaft profile
DIN 5480 tol. 9H
W35x2x16
W35x2x16
W40x2x18
W45x2x21
W50x2x24
Centering diameter
A fit h8
170
190
210
230
260
Screw connecting pitch
B
202
224
250
280
310
Fastening bores
C
17
21
22
26
26
Splined shaft length
D
40
40
45
50
55
Insertion length
E
92.3
110.5
123
130
145
Connection length, SAE flanges
F
134.2
140
155
174
188
Overall length
G
175.2
175
194
220
238
Pressure ports
SAE J518 (6,000 psi)
1"
1"
1 1/4"
1 1/4"
1 1/4"
M26x1.5
R 3/4"
R 3/4"
M33x2
M33x2
Oil leakage port
* Dimensions may vary according to configuration and additional equipment (installation drawing on request).
Note: This motor is mainly intended for installation in a mechanical travel drive. External brake valve can be attached to SAE port.
Control / regulation Hydraulic two-point control
px
V g min
40
V g max
Axial Piston Pumps and Motors by Liebhe rr
Type code for FMV motors
FMV
Motor type Variable dis placemen t plug-in mo tor, Series A
/
FMV
Nominal size 75 100 140 165 250
• • • • • Series 1
Control / regulation No regulator Two-point control Valves None Flushing for closed circuit Flushing for closed circuit with high pressure relief valve Flushing for open circuit Flushing for open circuit with high pressure relief valve High pressure relief valve with preparation for an external brake valve
- - - - • • • • •
• • • • •
00 2D
00 SO SH MO MH VBH
Mounting flange 2-hole flange
• • • • •
7
Through-drive Without through-drive Non-standard through-drive
• • • • • - - - - -
00 10
Minimum displacement Vg min = 33 cm 3 Vg min = 44 cm 3 Vg min = 56 cm 3 Vg min = 63.5 cm 3 Vg min = 89 cm 3 Vg min = 101 cm 3 Vg min = 110 cm 3 Vg min = 117 cm 3 Vg min = 140 cm 3 Vg min = 160 cm 3 Vg min = 202 cm 3 Vg min value in cm³ on customer request
• • -
• • -
• • -
• -
• • • •
Additi onal func tion Speed sensor
33 44 56 63.5 89 101 110 117 140 160 202
D
• Available On request - Not available
Axial Piston Pumps and Motors by Liebh err
41
Foot pedal VG7 2/3 R07
42
Axial Piston Pumps and Motors by Liebhe rr
Foot pedal VG7 2/3
Single pilot control device VG7 1/1
Double pilot control device VG7 2/2
Manual pilot control device VG7 4/4 UM03
Pilot control devices and hydraulic valves As a system supplier, Liebherr develops and produces a range of pilot control devices and hydraulic valves to actuate the axial piston units. These are particularly sturdy, have a simple design and are tried and tested in construction machines.
Pilot control devices The pilot control devices offered by Liebherr operate completely mechanically. In addition to single and double pilot control devices, foot and hand-operated pilot control devices are available. The VG 6-8 manual pilot control device is a newly developed pilot control device with a housing made from aluminium. It is therefore very lightweight and enables high flow rates with a steady pressure pattern.
Hydraulic valves Liebherr develops a wide range of different valves, such as flushing valves and feed pressure valves, as well as flow regulators, non-return, pressure limiting and damper valves for Liebherr pumps and motors. The brake valve assures a controlled braking response of the end application. The DBVS22 pressure limiting valve and the DV25 damper valve stabilise the application during directional changes by soft braking and acceleration of the slewing mechanism.
Manual pilot control device VG 6-8 4/4
Damper valve DV25
Non-return valve RVH10
Pressure limiting valve DBVS22
Flushing valve DBE10
Axial Piston Pumps and Motors by Liebh err
43
44
Axial Piston Pumps and Motors by Liebhe rr
Examples of use Earthmoving equipment Liebherr supplies axial piston pumps and motors as well as pilot control devices and valves for various functions in earthmoving equipment like mobile and crawler excavators, wheel loaders, crawler tractors and loaders, and also deep foundation machines. Possible functions are hydrostatic travel drives and swivelling drives.
Mining equipment For mining excavators, Liebherr develops and manufactures rugged hydraulic components for the working hydraulics, swivelling and travel drives as well as fan drives. Together with Liebherr diesel engines and splitter boxes, a complete diesel-hydraulic drivetrain can be formed. The units are designed to withstand high mechanical loads and the rough environments in mining.
Multi-circuit unit MKA 450 C with splitter box and working hydraulics pump, swivelling mechanism pump and fan pump
Manually operated pilot control device VG 6/8
Plug-in motors type Typ FMF in various nominal sizes as fan, swivelling mechanism and travel gear motors
Axial Piston Pumps and Motors by Liebh err
45
46
Axial Piston Pumps and Motors by Liebhe rr
Examples of use Cranes For mobile, crawler and special cranes Liebherr offers a wide range of axial piston pumps and motors as well as pilot devices and valves. These units are used for hydrostatic travel and slewing drives and to drive winches and cylinders.
Maritime applications For hydraulic components that are used in mobile harbour, ship and offshore crane special meaures are taken to prevent corrosion and ensure a long service life. For energy storage systems in deep sea and mobile harbour cranes, Liebherr has developed axial piston units that run both as pump and motor.
Special machines Through application-specific planning and design, Liebherr axial piston units are ideally suited to the most various special vehicles and machinery. Hydrostatic drives are used for example in pipeline equipment, straddle carriers and waste shredders.
Hydraulic double and single motor DMVA for the hydrostatic rope winch drive
Variable pumps DPVG for the hydrostatic rope winch drive
Flange-mounted motor LMF for the hydrostatic wheel drive
Axial Piston Pumps and Motors by Liebh err
47
