Revision of B30.20-2006

B30.20-200X (Revision of B30.20-2006)

BELOW THE HOOK LIFTING DEVICES November 2009 Draft

Tentative Subject to Revision or Withdrawal Specific permission required for Reproduction or Quotation

ASME Codes and Standards

FOREWORD

This American National Standard, Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings, has been developed under the procedures accredited by the American National Standards Institute (formerly the United States of America Standards Institute). This Standard had its beginning in December 1916 when an eight-page Code of Safety Standards for Cranes, prepared by an ASME Committee on the Protection of Industrial Workers, was presented to the annual meeting of the ASME. Meetings and discussions regarding safety on cranes, derricks, and hoists were held from 1920 to 1925, involving: the ASME Safety Code Correlating Committee, the Association of Iron and Steel Electrical Engineers, the American Museum of Safety, the American Engineering Standards Committee (later changed to American Standards Association and subsequently to the USA Standards Institute), Department of Labor — State of New Jersey, Department of Labor and Industry — State of Pennsylvania, and the Locomotive Crane Manufacturers Association. On June 11, 1925, the American Engineering Standards Committee approved the ASME Safety Code Correlating Committee’s recommendation and authorized the project, with the U.S. Department of the Navy, Bureau of Yards and Docks, and ASME as sponsors. In March 1926, invitations were issued to 50 organizations to appoint representatives to a Sectional Committee. The call for organization of this Sectional Committee was sent out October 2, 1926, and the committee organized November 4, 1926, with 57 members representing 29 national organizations. The Safety Code for Cranes, Derricks, and Hoists, ASA B30.2-1943, was created from the eight-page document referred to in the first paragraph. This document was reaffirmed in 1952 and widely accepted as a safety standard. Due to changes in design, advancement in techniques, and general interest of labor and industry in safety, the Sectional Committee, under the joint sponsorship of ASME and the Naval Facilities Engineering Command, U.S. Department of the Navy, was reorganized as an American National Standards Committee on January 31, 1962, with 39 members representing 27 national organizations. The format of the previous code was changed so that separate standards (each complete as to construction and installation; inspection, testing, and maintenance; and operation) will cover the different types of equipment included in the scope of B30. In 1982, the Committee was reorganized as an Accredited Organization Committee, operating under procedures developed by the ASME and accredited by the American National Standards Institute. This Standard presents a coordinated set of rules that may serve as a guide to government and other regulatory bodies and municipal authorities responsible for the guarding and inspection of the equipment falling within its scope. The suggestions leading to accident prevention are given both as mandatory and advisory provisions; compliance with both types may be required by employers of their employees. In case of practical difficulties, new developments, or unnecessary hardship, the administrative or regulatory authority may grant variances from the literal requirements or permit the use of other devices or methods, but only when it is clearly evident that an equivalent degree of protection is thereby secured. To secure uniform application and interpretation of this Standard, administrative or regulatory authorities are urged to consult the B30 Committee, in accordance with the format described in Section IX, before rendering decisions on disputed points. This Volume of the Standard, contains revisions including making maintenance mandatory and other changes to improve clarity and definitions which was approved by the B30 Committee and by ASME, was approved by ANSI and designated as an American National Standard on December 1, 2006.TBD Safety codes and standards are intended to enhance public safety. Revisions result from committee consideration of factors such as technological advances, new data, and changing environmental and industry needs. Revisions do not imply that previous editions were inadequate. v

B30.20 Summary of Changes Page

Location General 20-0.1 20-0.2

20-0.3

20-0.4

20-0.5

20-0.6

20-0.7

20-0.8

Replaced modify with alter throughout Revised Add, alteration, altered, modification and modified and repair. Delete designated load Revised below the hook lifting device Added abnormal operating conditions, and service special or infrequent. Revised service normal, category A and Category B, and Service, heavy Delete Chain/Hand wheel and gripping force. Added abnormal operating conditions, and service special or infrequent. Revised service normal, category A and Category B, and Service, heavy, horizontal and vertical surface lift and ring seal, vacuum lifter and vacuum reservoir Delete breakaway force, high temperature surface, low-temperature service, peel off, and shear breakaway force Added abnormal operating conditions, and service special or infrequent. Revised duty cycle, service normal, category A and Category B, and Service, heavy Added abnormal operating conditions, and service special or infrequent. Revised duty cycle, service normal, category A and Category B, and Service, heavy. Delete magnet, lifting submersible Added abnormal operating conditions, and service special or infrequent. Revised service normal, category A and Category B, and Service, heavy Revised

20-1.2.1(a), (c) &(d) 20-1.2.2 20-1.2.2 (d) 20-1.3.7 20-1.3.9(a)

Revised Added e-g Revised Revised revised

20-1.5

Revised entirely

20-2.2.1(a) 20-2.2.2(a) 20-2.2.2 20-2.3.7

Revised Revised Added k-m Revised

20-2.3.9(a) and (b)(4) 20-2.5

revised Revised entirely

20-3.2.1(a) 20-3.2.2 20-3.3.7 20-3.3.9(a)and (b)(5) 20-3.5

Revised Added h-j Revised revised

20-4.2.2 20-4.2.2 20-4.3.6 20-4.3.8(a) and (b)(5) 20-4.5

Revise (a)(4) Added f-h Revised revised

20-5.2.2 20-5.3.6 20-5.3.8(a) 20-5.5

Added f-h Revised revised Revised entirely

Figure 5 a-1 Figure 7(a)

Added drawing Revised title

Figure 5(n)

Added Beam Clamp

Revised entirely

Revised entirely

TR #: Standard: Subject: Updated:

06-363 B30.20 Construction June 2, 2006

Change Request Rationale: To incorporate design requirements in accordance with ASME BTH-1 Design of Below-The-Hook Lifting Devices.

Chapter 20-4 Remotely Operated Lifting Magnets 20-4.2.2 Construction (a) General (I) (2) (3)

(4) The load bearing structural components of a The manufacturer shall verify that Remotely operated lifting magnets are designed by or under the direct supervision of a qualified person. The design shall be in accordance with ASME BTH-1 Design of Below-the-Hook Lifting Devices and shall consider the stresses resulting from the application of rated load plus the weight of the lifting magnet. shall be designed to withstand the stresses imposed by its rated load plus the weight of the lifting 1

magnet with a minimum design factor of three based on yield strength of the material, and with stress ranges that do not exceed the values given in ANSI/AWS D14.1 for the applicable conditions. Remotely operated lifting magnets shall be designed to ASME BTH-1 Design Category B (static strength criteria) and the proper Service Class (fatigue life criteria) selected for its number of load cycles.

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TR #: Standard: Subject: Updated:

06-1568 B30.20 References December 5, 2006

Section 20-0.8: References to Other Codes and Standards Within the text, references are made to the following publications, copies of which may be obtained from the publishers as indicated. Copies of American National Standards may be obtained from the American National Standards Institute, Inc. (ANSI), 25 West 43rd Street, New York, NY 10036. ANSI/AWS D14.1-97 2005, Specification for Welding Industrial and Mill Cranes and Other Material Handling Equipment Publisher: American Welding Society (AWS), 550 NW Le Jeune Road, Miami, FL 33126 ANSI/NFPA 70- 2002 2005, National Electrical Code Publisher: National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02269 ICS l-ICS 6, 1978, Industrial Control and Systems Publisher: National Electrical Manufacturers Association (NEMA), 1300 North 17th Street, Rosslyn, VA 22209 ASME B30.9- 1996, Slings ASME B30.10-1999, Hooks ASME BTH-1 2005, Design of Below-the-Hook Lifting Devices Specification for the Design, Fabrication and Erection of Structural Steel for Buildings, 8th Edition Manual, 1980 Publisher: American Institute of Steel Construction (AISC), 1 East Wacker Drive, Chicago, IL 60611

Rationale: To update references within the text of ASME B30.20.

TR07-2044 Definitions 11/16/2009 Chapter 20-0 Scope, Definitions, and References Rationale: To update definitions within ASME B30.20 Chapter 20-0 Chapter 20-3 Chapter 20-2 Chapter 20-1 Chapter 20-4 Close Proximity Lifting Vacuum Lifting Devices Structural and Mechanical Remotely Operated Lifting Magnets Lifting Devices Magnets Abnormal operating conditions superceeded by TR-08-522

Abnormal operating conditions superceeded by TR-08-522 Service, normal superceeded by TR-08-523

Service, normal superceeded by TR-08-523 service, heavy:, that service which involves operation within the rated load limit that exceeds the limits of normal service service, heavy:, that service which involves operation within the rated load limit that exceeds the limits of normal service

service, severe: that service which involves normal or heavy service with abnormal operating conditions service, special or infrequent, service that involves

service, severe: that service which involves normal or heavy service with abnormal operating conditions service, special or infrequent, service that involves operation other than normal, heavy, or severe.

Abnormal operating conditions superceeded by TR-08-522

Abnormal operating conditions superceeded by TR-08-522

Service, normal superceeded by TR-08-523

Service, normal superceeded by TR-08-523

duty cycle: an 8, 16, or 24 hr rating with duty cycle = (time on x 100)/ (time on + time off) and is expressed as a percentage (with a maximum of 10 min time on to avoid overheating the magnet). EXAMPLE: 3 min on, 2 min off equal: (3/(3+2)) x 100 =60% (3 x 100) /(3+2) =60%

duty cycle: an 8, 16, or 24 hr rating with duty cycle = (time on x 100)/ (time on + time off) and is expressed as a percentage (with a maximum of 10 min time on to avoid overheating the magnet). EXAMPLE: 3 min on, 2 min off equal: (3/(3+2)) x 100 =60% (3 x 100) /(3+2) =60%

service, heavy: that service which involves operation within the rated load limit that exceeds the limits of normal service

service, severe: that service which involves normal or 1

service, heavy: that service which involves operation within the rated load limit that exceeds the limits of normal service

Chapter 20-5 Scrap and Material Handling Grapples

Abnormal operating conditions superceeded by TR-08-522 Service, normal superceeded by TR-08-523

service, heavy: that service which involves operation within the rated capacity and load limit that exceeds the limits of normal service

service severe: that service which involves normal or

operation other than normal, heavy, or severe.

heavy service with abnormal operating conditions service, special or infrequent, service that involves operation other than normal, heavy, or severe.

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service severe: that service which involves normal or heavy service with abnormal operating conditions service, special or infrequent, service that involves operation other than normal, heavy, or severe.

heavy service with abnormal operating conditions service, special or infrequent, service that involves operation other than normal, heavy, or severe.

Proposed changes for ASME B-30.20-2009 16, Nov 2009 Chapter 20-2 Vacuum Lifting Devices SECTION. 20-2.2: MARKING, CONSTRUCTION, AND INSTALLATION 20-2.2.1 Marking (a) Rated Load. The rated load of the lifter and each pad , maximum width, maximum length, and minimum thickness of the load shall be legibly marked on the main structure or on a tag attached to it where it is visible. If the vacuum lifting device has shutoff valves on individual pads or groups of pads the rated load of each pad shall also be marked. This rating shall refer to the instruction manual for information relating to decreases in rating due to additional considerations. 20-2.2.2 Construction (a) Vacuum Pad Rating. The ultimate pad capacity (UPC) shall be determined by the following formulas provided in ASME BTH-1: (1) Inch-Pound Method UPC = A(Hg/2) where A = effective area of the vacuum pad, expressed in square inches, enclosed between the pad and the material when the pad is fully compressed against the material surface to be lifted Hg = system vacuum expressed in inches of mercury. Reductions for altitude, efficiency, consistency, and wear of vacuum source shall be considered. 2 = division constant for inch-pound method EXAMPLE: Effective pad area = 100 in.2 System vacuum = 24 in. Hg UPC = 100(24/2) =1200 lb (2) Metric Method UPC = A(Hg/73.6) where A = effective area of the vacuum pad, expressed in square centimeters, enclosed between the pad and the material when the pad is fully compressed against the material surface to be lifted Hg =system vacuum expressed in centimeters of mercury. Reductions for altitude, efficiency, consistency, and wear of vacuum source shall be considered. 73.6 = division constant for metric method EXAMPLE: Effective pad area =100 cm2 System vacuum = 10 cm Hg UPC =100(10/73.6) =13.6 kg 1

Structural & Mechanical Lifting Devices . 20-1.5 - Instruction Manuals Operating instructions and maintenance and parts information shall be furnished by the manufacturer.

Vacuum lifting Devices

Close Proximity Lifting Magnets

Remotely Operated Lifting Magnets

Scrap & Material Handling Grapples

20-2.5 - Instruction Manuals

20-3.5 Instruction Manuals

20.4.5 - Instruction Manuals

20-5.5 Instruction Manuals

Operating instructions and maintenance and parts information shall be furnished by the manufacturer.




In addition to operating instructions and maintenance and parts information, the manual shall provide a statement of those factors that alter the vacuum lifter's lifting capacity and related limitations.

In addition to operating instructions and maintenance and parts information the manual shall provide a statement of those factors that alter the lifting magnet’s capacity and related limitations. Some of these factors are noted below.

Some of these factors are noted below. (a) Load rigidity. The rigidity may cause the vacuum pads and the structure to be loaded unevenly. The rigidity may vary depending on orientation. (b) Load strength. Stress induced by the load’s own weight and the stress from the vacuum pad’s may

(a) Load Thickness. The magnetic flux flowing from a lifting magnet into a load increases as the thickness of the load increases. Consequently, as a lifting magnet's lifting capacity is a function of this flux, the lift capacity increases with load thickness. For every lifting magnet, there is a critical load thickness where all of the lifting 2

In addition to operating instructions and maintenance and parts information, the manual shall provide a statement of those factors that alter the lifting magnet’s capacity and related limitations. Some of these factors are noted below. (a) Load Thickness. The magnetic flux flowing from a lifting magnet into a load increases as the thickness of the load increases. Consequently, as a lifting magnet's lifting capacity is a function of this flux, the lift capacity increases with load thickness. For every lifting magnet, there is a critical load

damage the load. (c) Load Surface Conditions. Uneven or rough surfaces may affect the vacuum pads ability to attach or maintain a seal. Frictional properties may affect the capacity. (d) Load overhang. As the load extends past the supports of the vacuum pads the load may be damaged or deflect and peel away from the pad seal. (e) Angle of the Load. The coefficient of friction between the load and vacuum pad becomes significant when the load is not horizontal. (f) Number of pads attached to the load. The capacity varies with the number of pads fully attached to the load. (g) Load Temperature. Elevated temperatures may damage the vacuum pads or affect the function of the pads. (h) Elevation and vacuum level. The vacuum pad rating varies with the vacuum level achieved under the pads. If the vacuum level decreases from the vacuum level used for capacity calculations, the ultimate pad capacity is reduced. At various elevations, the vacuum level

magnet's available flux flows into the load and the lift capacity reaches maximum. (b) Load Alloy. Many alloys of iron do not accept magnetic flux as easily as do low carbon steels. Consequently, loads of such alloys will not accept all of the flux available in the lifting magnet, which reduces the lifting magnet's lift capacity. (c) Load Surface Conditions. Anything that creates an air gap or nonmagnetic separation between a lifting magnet and the load reduces the flux flowing from the lifting magnet into the load, which reduces the lifting capacity of a lifting magnet. . A rough surface finish, paper, dirt, rust, paint, and scale produce such gaps. (d) Load Length or Width. As the length or width of the load increases, the load begins to deflect and to peel at the lifting magnet face. This may create an air gap between the load and the lifting magnet, which reduces the lifting capacity per (c) above. (e) Attitude of Load. As the attitude of the surface of the load to which a lifting magnet is attached (lifting surface) changes from horizontal to vertical, the lifting capacity of the lifting magnet reaches a 3

thickness where all of the lifting magnet's available flux flows into the load and the lift capacity reaches maximum. (b) Load Alloy. Many alloys of iron do not accept magnetic flux as easily as do low carbon steels. Consequently, loads of such alloys will not accept all of the flux available in the lifting magnet, which reduces the lifting magnet's lift capacity. (c) Load Surface Conditions. Anything that creates an air gap or nonmagnetic separation between a lifting magnet and the load reduces the flux flowing from the lifting magnet into the load, which reduces the lifting capacity of a lifting magnet. . A rough surface finish, paper, dirt, rust, paint, and scale produce such gaps. (d) Load Length or Width. As the length or width of the load increases, the load begins to deflect and to peel at the lifting magnet face. This may create an air gap between the load and the lifting magnet, which reduces the lifting capacity per (c) above. (e) Attitude of Load. As the attitude of the surface of the load to which a lifting magnet is attached (lifting surface) changes from horizontal to vertical, the lifting capacity of

that can be reached may vary

minimum and becomes dependent upon the coefficient of friction of the lifting surface. (f) Portion of Lifting Magnet Face in Contact With Load. The full face of the lifting magnet must contact the load if the lifting magnet is to achieve maximum capabilities. (g) Load Temperature. The temperature of the load can cause damage to the lifting magnet and, if high enough, even change the magnetic characteristics of the load. Consequently, the manual shall contain the manufacturer's recommendations pertaining to operation of the lifting magnet on loads at temperatures exceeding normal ambient temperatures.

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the lifting magnet reaches a minimum and becomes dependent upon the coefficient of friction of the lifting surface. (f) Portion of Lifting Magnet Face in Contact With Load. The full face of the lifting magnet must contact the load if the lifting magnet is to achieve maximum capabilities. (g) Load Temperature. The temperature of the load can cause damage to the lifting magnet and, if high enough, even change the magnetic characteristics of the load. Consequently, the manual shall contain the manufacturer's recommendations pertaining to operation of the lifting magnet on loads at temperatures exceeding normal ambient temperatures.

Record# 08-521 (Ballot 08-426) (Definition: abnormal operating conditions) Proposed Change 1 Structural and Mechanical lifting device Section 20-0.3 – Definitions for Chapter 20-1 abnormal operating conditions - environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of structural and mechanical lifting devices, such as excessively high or low ambient temperatures, exposure to adverse weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations. Proposed Change 2 Vacuum Lifting Devices Section 20-0.4 – Definitions for Chapter 20-2 abnormal operating conditions - environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of vacuum lifting devices, such as excessively high or low ambient temperatures, exposure to adverse weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations. Proposed Change 3 Close Proximity Lifting Magnets Section 20-0.5 – Definitions for Chapter 20-3 abnormal operating conditions - environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of close proximity lifting magnets, such as excessively high or low ambient temperatures, exposure to adverse weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations. Proposed Change 4 Remotely Operated Lifting Magnets Section 20-0.6 – Definitions for Chapter 20-4 abnormal operating conditions - environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of remotely operated lifting magnets, such as excessively high or low ambient temperatures, exposure to adverse weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations. Proposed Change 5 Scrap and Material Handling Grapples Section 20-0.7 – Definitions for Chapter 20-5 abnormal operating conditions - environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of scrap and material handling grapples, such as excessively high or low ambient temperatures, exposure to adverse weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations.

Record# 08-522 (Ballot 08-426) Construction Proposed Change 1 Structural and Mechanical lifting device Section 20-1.2: Marking, Construction, and Installation 20-1.2.2 Construction. (e) Slings, when employed, shall meet the requirements of ASME B30.9. (f) Hooks, when employed, shall meet the requirements of ASME B30.10. (g) Rigging hardware, when employed, shall meet the requirements of ASME B30.26.

Proposed Change 2 Vacuum Lifting Devices Section 20-2.2: Marking, Construction, and Installation 20-2.2.2 Construction (h) Slings, when employed, shall meet the requirements of ASME B30.9. (i) Hooks, when employed, shall meet the requirements of ASME B30.10. (j) Rigging hardware, when employed, shall meet the requirements of ASME B30.26.

Proposed Change 3 Close Proximity Lifting Magnets Section 20-3.2: Marking, Construction, and Installation 20-3.2.2 Construction (h) Slings, when employed, shall meet the requirements of ASME B30.9. (i) Hooks, when employed, shall meet the requirements of ASME B30.10. (j) Rigging hardware, when employed, shall meet the requirements of ASME B30.26.

Proposed Change 4 Remotely Operated Lifting Magnets Section 20-4.2: Marking, Construction, and Installation 20-4.2.2 Construction (f) Slings, when employed, shall meet the requirements of ASME B30.9. (g) Hooks, when employed, shall meet the requirements of ASME B30.10. (h) Rigging hardware, when employed, shall meet the requirements of ASME B30.26. Proposed Change 5 Material Handling Grapples Section 20-5.2 - Marking, Construction, and Installation 20-5.2.2 Construction (f) Slings, when employed, shall meet the requirements of ASME B30.9. (g) Hooks, when employed, shall meet the requirements of ASME B30.10. (h) Rigging hardware, when employed, shall meet the requirements of ASME B30.26. Proposed Change 6 Section 20-0.8 – References To Other Codes And Standards ASME B30.26-2008, Rigging Hardware

Record# 08-523 (Ballot 08-426) Structural and Mechanical Lifting Devices Section 20-0.3 – Definitions for Chapter 20-1

Chapter 20-0 Scope, Definitions, and References

Vacuum Lifting Devices Section 20-0.4 – Definitions for Chapter 20-2

(for ASME BTH-1 Design Category A lifters )

(for ASME BTH-1 Design Category A lifters )

service, normal: that service which involves operation with various weights within the rated load limit with not more than 4 operations above 65% of the rated load limit per 24 hour period.

service, normal: that service which involves operation with various weights within the rated load limit with not more than 4 operations above 65% of the rated load limit per 24 hour period.

(for ASME BTH-1 Design Category B lifters)


service, normal: - that service which involves operation with various weights within the rated load limit, averaging less than 65% of rated load limit.

service, normal: - that service which involves operation with various weights within the rated load limit, averaging less than 65% of rated load limit.

Close Proximity Lifting Magnets Section 20-0.5 – Definitions for Chapter 20-3

Remotely Operated Lifting Magnets Section 20-0.6 – Definitions for Chapter 20-4



service, normal: - that service which involves operation with various weights within the rated load limit, averaging less than 65% of rated load (capacity) with the magnet operating at, or below, the rated duty cycle over one shift (8 hr.)

service, normal: - that service which involves operation with various weights within the rated load limit, averaging less than 65% of rated load (capacity) with the magnet operating at, or below, the rated duty cycle over one shift (8 hr.)

Chapter 20-0 Scope, Definitions, and References Section 20-0.2– Definitions - General Section 20-0.8: References To Other Codes And Standards ASME HST-1 Performance Standard for Electric Chain Hoists

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Scrap and Material Handling Grapples Section 20-0.7 – Definitions for Chapter 20-5

(for ASME BTH-1 Design Category B lifters,)

service, normal: - that service which involves operation with various weights within the rated load limit, averaging less than 65% of rated load.

Record# 08-524 (Ballot 08-426) Instruction Manuals These are revisions to the previously approved TR-07-2045

Vacuum lifting Devices Section 20-2.5 - Instruction Manuals The manufacturer shall provide operating instructions, and maintenance and parts information. In addition, the manual shall also provide a statement of those factors that alter the vacuum lifter's lifting capacity and related limitations. Several factors known to affect the vacuum lifter's lifting capacity are noted below.” Close Proximity Lifting Magnets Section 20-3.5 Instruction Manuals The manufacturer shall provide operating instructions, and maintenance and parts information. In addition , the manual shall also provide a statement of those factors that alter the magnet’s lifting capacity and related limitations. Several factors known to affect the magnet’s lifting capacity are noted below.

Remotely Operated Lifting Magnets Section 20-4.5 - Instruction Manuals The manufacturer shall provide operating instructions, and maintenance and parts information. In addition, the manual shall also provide a statement of those factors that alter the magnet’s lifting capacity and related limitations. Several factors known to affect the magnet’s lifting capacity are noted below.”

Vacuum lifting Devices Section 20-2.5 - Instruction Manuals (e) Angle of the Load. The effect of the coefficient of friction between the load and vacuum pad becomes significant when the load is not horizontal

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Record# 08-525 (Ballot 08-426) Markings Chapter 20-1 Structural and Mechanical Lifting Devices SECTION 20-1.2: MARKING, CONSTRUCTION, AND INSTALLATION 20-1.2.1 Marking (a) Rated Load. The rated load of the lifting device shall be legibly marked on its the main structure or on a tag attached to its main structure it where it is visible. If the lifting device is made up of several lifters, each detachable from the group, these lifters shall also be marked with their individual rated loads. Chapter 20-2 Vacuum Lifting Devices SECTION. 20-2.2: MARKING, CONSTRUCTION, AND INSTALLATION 20-2.2.1 Marking (a) Rated Load. The rated load of the lifter and each pad shall be legibly marked on its the main structure or on a tag attached to its main structure it where it is visible. This marking rating shall refer to the instruction manual for information relating to decreases in rating due to additional considerations Chapter 20-3 Close Proximity Lifting Magnets SECTION 20-3.2: MARKING. CONSTRUCTION. AND INSTALLATION 20-3.2.1 Marking (a) Rated Load (Capacity) (1) General Application Lifting Magnets. The rated load (capacity) of the lifting magnet shall be legibly marked on the lifting magnet or on a tag attached to the lifting magnet it where it is visible. This marking rating shall refer to the instruction manual for information relating to decreases in rating due to the load surface condition, thickness, percentage of contact with the lifting magnet, temperature, metallurgical composition, and deflection. (2) Specified Application Lifting Magnets. The rated load (capacity) of the lifting magnet shall be legibly marked on the lifting magnet or on a tag attached to the lifting magnet it where it is visible. This marking rating shall refer to the specific loads for which this rating applies.

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Record# 08-526 (Ballot 08-426) Repairs Proposed Change 1 Structural and Mechanical lifting device Section 20-1.3: Inspection, Testing, and Maintenance 20-1.3.7 Repairs Any indications of damage disclosed by the inspection requirements of Section 20-1.3 shall be corrected according to the procedures outlined in para. 20-1.3.9 before operation of the lifter is resumed. Repairs of slings, (ASME B30.9), hooks, (ASME B30.10), rigging hardware (ASME B30.26), or other special devices shall comply with repair requirements in the applicable volumes or standards.

Proposed Change 2 Vacuum Lifting Devices Section 20-2.3: Inspection, Testing, and Maintenance 20-2.3.7 Repairs Any indications of damage disclosed by the inspection requirements of Section 20-2.3 shall be corrected according to the procedures outlined in para. 20-2.3.9 before operation of the vacuum lifter is resumed. Repairs of slings, (ASME B30.9), hooks, (ASME B30.10), rigging hardware (ASME B30.26), or other special devices shall comply with repair requirements in the applicable volumes or standards.

Proposed Change 3 Close Proximity Lifting Magnets Section 20-3.3: Inspection, Testing, and Maintenance 20-3.3.7 Repairs Any indications of damage disclosed by the inspection requirements of Section 20-3.3 shall be corrected according to the procedures outlined in para. 20-3.3.9 before operation of the lifting magnet is resumed. Repairs of slings, (ASME B30.9), hooks, (ASME B30.10), rigging hardware (ASME B30.26), or other special devices shall comply with repair requirements in the applicable volumes or standards.

Proposed Change 4 Remotely Operated Lifting Magnets Section 20-4.3: Inspection, Testing, and Maintenance 20-4.3.6 Repairs Any indications of damage disclosed by the inspection requirements of Section 20-4.3 shall be corrected according to the procedures outlined in para. 20-4.3.8 before operation of the lifting magnet is resumed. Repairs of slings, (ASME B30.9), hooks, (ASME B30.10), rigging hardware (ASME B30.26), or other special devices shall comply with repair requirements in the applicable volumes or standards.

Proposed Change 5 Material Handling Grapples Section 20-5.3: Inspection, Testing, and Maintenance 20-5.3.6 Repairs Any indications of damage disclosed by the inspection requirements of Section 20-5.3 shall be corrected according to the procedures outlined in para. 20-5.3.8 before operation of the grapple is resumed. Repairs of slings, (ASME B30.9), hooks, (ASME B30.10), rigging hardware (ASME B30.26), or other special devices shall comply with repair requirements in the applicable volumes or standards.

Record #: Standard: Subject: Updated:

08-955 B30.20 Definitions July 28, 2008

Delete the following definitions: from SECTION 20-0.2: Definitions — General.

designated load: the specified size, shape, and weight of material to be lifted. Rationale: Not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices from Section 20-0.3: Definitions For Chapter 20-1

chain/hand wheel: a device for manually operating a lifter. gripping force: the force the lifting device exerts on the load. Rationale: Not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-1. from Section 20-0.4: Definitions For Chapter 20-2

breakaway force: the external force that is required to separate the vacuum pad or vacuum lifting device from the load when applied perpendicular to the attachment surface. high-temperature surface: a condition where the surface to which the vacuum pad (or pads) is attached is above 250°F (120°C). low-temperature service: a condition where the surface to which the vacuum pad (or pads) is attached is below 0°F (−18°C). peel off: a prying action that takes place when deflection of an overhanging load exceeds the compensating ability of the vacuum pad or vacuum lifting device, resulting in loss of load. shear breakaway force: the external force that is required to separate or slide the vacuum pad or vacuum lifting device on the load when the force is applied parallel to the attached load surface. Rationale: Not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-2. from Section 20-0.6: Definitions For Chapter 20-4

magnet, lifting, submersible: a special lifting magnet that has been designed to be immersed in liquid. Rationale: Not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-4.

Record#: Standard: Subject: Updated:

08-960 B30.20 Definitions June 26, 2008

Change the following definitions in Section 20-0.4: Definitions For Chapter 20-2

Horizontal surface lift: a condition where the surface to which the vacuum pad (or pads) is attached is in a horizontal plane. Rationale: This definition is for “Horizontal surface lift” as used within Chapter 20-2. “Horizontal lift” is not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-2.

vertical surface lift: a condition where the surface to which a vacuum pad is attached is in a vertical plane. Rationale: This definition is for “Vertical surface lift” as used within Chapter 20-2. “Vertical lift” is not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-2.

sealing ring (seal): that part of the vacuum pad which forms the seal of the vacuum chamber between the vacuum pad body or vacuum lifting device and the attached material. Rationale: This definition is for “seal ring” or “seal” as used within Chapter 20-2. “Sealing ring” is not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-2.


08-961 B30.20 Definitions November 17, 2008 addition of comma per September 2008 Minutes.

Change the following definitions in SECTION 20-0.4: Definitions For Chapter 20-2

vacuum lifter: a below-the-hook lifting device for lifting and transporting loads in a fixed attitude using a holding force by means of vacuum (see Fig. 6). Rationale: The current definitions of “vacuum lifter” and “vacuum manipulator” in B30.20 are contradictory. A “vacuum manipulator” is defined as “a vacuum lifter capable of repositioning the load while suspended”, but a vacuum lifter is by definition used in a fixed attitude. This proposal is to make “vacuum lifter” the allencompassing term, and “vacuum manipulator” a sub-set of vacuum lifter. This change will also make B30.20 and the 2008 edition of BTH definitions consistent. vacuum reservoir: the evacuated portion of the vacuum system, whose which functions is to compensate for leakage into the vacuum system or to provide a vacuum reserve in the event of vacuum generator failure. Rationale: A grammatical correction.


08-962 B30.20 Definitions June 26, 2008

Change the following definitions in Section 20-0.5: Definitions For Chapter 20-3 and Section 20-0.6: Definitions For Chapter 20-4

service, heavy duty: that service which involves operation within the rated load limit that exceeds normal service. Rationale: This definition is for “service, heavy ” as used within Chapter 20-3 and Chapter 20-4. “service, heavy duty” is not used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices Chapter 20-3 or Chapter 20-4.


08-963 B30.20 Definitions November 17, 2008 adding editorial change from Sept 2008 mtg Minutes.

Change the following description in Fig. 7, sketch (a) for Chapter 20-3 “(a) Close Proximity Operated Battery Powered Lifting Electromagnet”

Rationale: This figure is Labeled “Close Proximity Operated Lifting Electromagnet”. It should be “Close Proximity Operated Battery Powered Electromagnet Lifting Magnet”.


08-964 B30.20 References June 26, 2008

Change the following reference dates in Chapter 20-0 Section 20-0.8: References To Other Codes and Standards

ASME B30.9-2006, Slings ASME B30.10-2005 Hooks ASME BTH-1-2008, Design of Below-The-Hook Lifting Devices

Rationale: To update references.


08-1660A B30.20 Definitions May 2009

Proposal # 1: Change the following in SECTION 20-0.2: Definitions — General.

below-the-hook lifting device: a device used for attaching loads to a hoist. The device may contain components such as slings, hooks, and rigging hardware, and lifting attachments addressed by other ASME B30 volumes or other standards. Rationale: To enhance the definition of a below-the-hook lifting device.


08-1661 B30.20 Scope November 17, 2008

Change the following in SECTION 20-0.1: SCOPE OF ASME B30.20 SECTION 20-0.1: SCOPE OF ASME B30.20

Volume B30.20 includes provisions that apply to the marking, construction, installation, inspection, testing, maintenance, and operation of below-the-hook lifting devices, other than slings components addressed by other ASME B30 volumes or other standards, used for attaching loads to a hoist. Rationale: To more completely define the exceptions.


08-1662A B30.20 Definitions January 20, 2009

Add the following definitions in Chapter 20-0 Definitions Section 20-0.2: Definitions — General repair: the process of reconditioning, renewal or replacement of parts, components, and/or subsystems to a condition equal to the original manufacturer’s specifications for the purpose of ensuring performance in accordance with the applicable requirements.

Rationale: To clarify the meaning of “repair” as used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices.


(08-1664A) B30.20 Definitions January 20, 2009

Add the following definitions in Chapter 20-0 Definitions Section 20-0.2: Definitions — General Alteration: a physical change, addition, or deletion that modifies the original design, or intended functioning, of the below-the-hook lifting device. altered – see alteration modification – see alteration modified – see alteration

Rationale: To clarify the meaning of “alteration/altered” and “modification/modified” as used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices.


08-1665 B30.20 Figure 5 November 17, 2008

Proposal #6: Add the following illustration and “(n) Beam Clamp” to Fig. 5 Load-Supporting:

(n) Beam Clamp Rationale: To illustrate and label another type of Load supporting lifter covered by ASME B30.20 section 1.

Proposed ballot to eliminate the use of “modification” when used in same reference with “alteration”. Record#: Standard: Subject: Updated:

09-324 B30.20 Marking, Construction, Inspection, and Testing Sections January 26, 2009

Rationale: To reduce the confusion of the meaning of “modification” and “alteration” when used within the same reference as presently used within the text of ASME B30.20-2006 Below-The-Hook Lifting Devices.

Chapter 20-1 Structural and Mechanical Lifting Devices

Chapter 20-2 Vacuum Lifting Devices

Chapter 20-3 Close Proximity Lifting Magnets

Chapter 20-4 Remotely Operated Lifting Magnets


20-1.2.1 Marking

20-2.2.1 Marking

20-3.2.1 Marking

20-4.2.1 Marking

20-5.2.1 Marking

(c) Repaired or Altered Modified Lifters. All repaired or altered modified structural and mechanical lifters shall be provided with identification displaying, but not limited to, the following information: (1) name and address of the repairer or alterer modifier (2) repairer’s or alterer’s modifier’s unit identification (3) lifter weight (if altered) (4) cold current (amps) (if altered) (5) rated voltage (if altered) (6) rated load (if altered) [as described in para.. 20-1.2.1(a)] (7) ASME BTH-1 Design Category (if altered) (8) ASME BTH-1 Service Class

(c) Repaired or Altered Modified Lifters. All repaired or altered modified vacuum lifting devices shall be provided with identification displaying, but not limited to, the following information: (1) name and address of the repairer or alterer modifier (2) date of the repair (3) repairer’s or alterer’s modifier’s unit identification (4) lifter weight (if altered) (5) electrical power requirements (if altered) (6) pressure and volume of compressed air required (if altered) (7) rated load (if altered) [as described in para.

(d) Repaired or Altered Modified Lifting Magnets. All repaired or altered modified magnets shall be provided with identification displaying, but not limited to, the following information: (1) name and address of the repairer or alterer modifier (2) repairer’s or alterer’s modifier’s unit identification (3) weight of lifting magnet (if altered) (4) duty cycle (if altered) (5) the cold current or wattage at 68°F (20°C) (if altered) (6) the voltage of the primary power supply or battery (if altered) (7) rated load (if altered) [as

(b) Repaired or Altered Modified Lifting Magnets. All repaired or altered modified magnets shall be provided with identification displaying, but not limited to, the following information: (1) name and address of the repairer or alterer modifier (2) repairer’s or alterer’s modifier’s unit identification (3) weight of lifting magnet (if altered) (4) duty cycle (if altered) (5) the cold current or wattage at 68°F (20°C) (if altered) (6) the voltage of the primary power supply or battery (if altered) (7) ASME BTH-1 Design

(b) Repaired or Altered Modified Grapples. All repaired or altered modified scrap and material handling grapples shall be provided with identification displaying, but not limited to, the following information: (1) name and address of the repairer or alterer modifier (2) repairer’s or alterer’s modifier’s unit identification (3) grapple weight (if altered) (4) operating hydraulic pressure(s) (if altered) (5) rated voltage (if altered) (6) rated capacity (if altered) (7) ASME BTH-1 Design Category B (8) ASME BTH-1 Service Class

1

(if altered)

20-2.2.1(a)] (8) ASME BTH-1 Design Category (if altered) (9) ASME BTH-1 Service Class (if altered)

described in para. 20-3.2.1(a)] (8) ASME BTH-1 Design Category B (9) ASME BTH-1 Service Class (if altered)

(d) Product Safety Labels (1) Where size and shape of the lifter allow, ….

(d) Product Safety Labels (1) Where size and shape of the lifter allow, ….

(e) Product Safety Labels (1) Where size and shape of the lifting magnet allow,

(j) making alterations or modifications to lifter

(n) making alterations or modifications to lifter

(j) making alterations or modifications to lifting magnet

20-1.2.2 Construction . (d) Alterations Modifications.. Structural and mechanical lifters may be altered modified or rerated, provided such alterations modifications are analyzed and approved by the equipment manufacturer or a qualified person. A rerated lifter, or one whose components have been altered modified shall …

20-1.3.1 Inspection Classification (a) Initial Inspection (2) Repaired or altered Altered, repaired, or modified lifters shall be inspected by a designated person. The

Category B (8) ASME BTH-1 Service Class (if altered)

(if altered)

20-4.2.2 Construction

20-5.2.2 Construction

(j) Alterations Modifications. Vacuum lifters may be altered modified or rerated, provided such alterations modifications are analyzed and approved by the equipment manufacturer or a qualified person. A rerated lifter or one whose components have been altered modified shall …

(g) Alterations Modifications. All lifting magnets may be altered modified or rerated, provided such alterations modifications and the supporting structure are analyzed and approved by the lifting magnet manufacturer or a qualified person. A rerated lifting magnet or one whose loadsupporting components have been altered modified shall …

(e) Alterations Modifications. All lifting magnets may be altered modified or rerated, provided such alterations modifications and the supporting structure are analyzed and approved by the lifting magnet manufacturer or a qualified person. A rerated lifting magnet or one whose load-bearing structural components have been altered modified shall …

(e) Alterations Modifications. Grapples may be altered modified or rerated, provided such alterations modifications are analyzed and approved by the equipment manufacturer or a qualified person. A rerated grapple or one whose components have been altered modified shall …

20-2.3.1 Inspection Classification



(a) Initial Inspection (2) Repaired or altered Altered, repaired, or modified vacuum lifters shall be inspected by a designated person. The inspection may be

(a) Initial Inspection (2 ) Repaired or altered Altered, repaired, or modified lifting magnets shall be inspected by a designated person. The inspection may be

(a) Initial Inspection (2) Repaired or altered Altered, repaired, or modified lifting magnets shall be inspected by a designated person. The inspection may be

20-3.2.2 Construction 20-2.2.2 Construction

2

20-5.3.1 Inspection Classification (a) Initial Inspection (2) Repaired or altered Altered, repaired, or modified grapples shall be inspected by a designated person. The

inspection may be limited to the provisions affected by the alteration or, repair, or modification, as determined by a qualified person.

limited to the provisions affected by the alteration or,repair, or modification, as determined by a qualified person.

limited to the provisions affected by the alteration or,repair, or modification, as determined by a qualified person.

limited to the provisions affected by the alteration or, repair, or modification, as determined by a qualified person.

20-2.3.6 Inspection Records




Dated inspection reports shall be made on critical items, such as those listed in para. 20-3.3.4. Records should be available to appointed personnel for each periodic inspection and when the lifting magnet is either modified or repaired or altered.

Dated inspection reports shall be made on critical items, such as those listed in para. 20-4.3.3. Records should be available to appointed personnel for each periodic inspection and when the lifting magnet is either modified or repaired or altered.


20-4.3.7 Testing

20-5.3.7 Testing

(b Repaired or altered Altered, repaired, or modified lifting magnets shall be tested by, or under the direction of, a qualified person. This test may be limited to the provisions affected by the repair or alteration, repair, or modification, as determined by a qualified person with guidance from the manufacturer.

(b) Repaired or altered Altered, repaired, or modified grapples shall be tested by a qualified person, or a designated person under the direction of a qualified person. This test may be limited to the provisions affected by the repair or alteration, repair, or modification, as determined by a qualified person with guidance from the manufacturer.

Dated inspection reports shall be made on critical items such as those listed in para. 20-1.3.4. Records should be available to appointed personnel for each periodic inspection and when the lifter is either modified or repaired or altered.

Dated inspection reports shall be made on critical items such as those listed in para. 20-2.3.4. Records should be available to appointed personnel for each periodic inspection and when the vacuum lifter is either modified or repaired or altered.

20-1.3.8 Testing 20-2.3.8 Testing

20-1.3.8.1 Operational Tests (b) Repaired or altered Altered, repaired, or modified lifters shall be tested by a qualified person, or a designated person under the direction of a qualified person. This test may be limited to the provisions affected by the repair or alteration, repair, or modification, as determined by a qualified person with guidance from the manufacturer.

20-2.3.8.1 Operational Tests (b) Repaired or altered Altered, repaired, or modified lifting devices shall be tested by, or under the direction of, a qualified person. This test may be limited to the provisions affected by the repair or alteration, repair, or modification, as determined by a qualified person with guidance from the manufacturer.

20-1.3.8.2 Load Test (a) Prior to initial use, all new, altered, modified, or repaired lifting devices should be tested and inspected. If performed, tests shall …..

20-2.3.8.2 Load Test (a) Prior to initial use, all new, altered, or repaired, or modified vacuum lifting devices shall ….

inspection may be limited to the provisions affected by the alteration or, repair, or modification, as determined by a qualified person.

Dated inspection reports shall be made on critical items listed in para. 20-5.3.3. Records should be available to appointed personnel for each periodic inspection and when the grapple is either modified or repaired or altered.

20-3.3.8 Testing 20-3.3.8.1 Operational Tests (b Repaired or altered Altered, repaired, or modified lifting magnets shall be tested by, or under the direction of, a qualified person. The test may be limited to the provisions affected by the repair or alteration, repair, or modification, as determined by a qualified person with guidance from the manufacturer.

20-3.3.8.2 Load Test (a) Prior to initial use, all new, altered modified, or repaired lifting magnets shall ….

3

.

(c) Tests of altered or, repaired , or modified lifters may be limited to the provisions affected by the alteration or repair, or modification, as determined by a qualified person with guidance from the manufacturer.

(b) Altered or, repaired, or modified vacuum lifting devices shall be tested by, or under the direction of, a qualified person. This test may be limited to the provisions affected by the alteration or repair, or modification, as determined by a qualified person with guidance from the manufacturer.

(d) Altered or, repaired, or modified lifting magnets shall be tested by, or under the direction of, a qualified person. This test may be limited to the provisions affected by the alteration or, repair, or modification, as determined by a qualified person with guidance from the manufacturer.

.

4


09-325 Recirculation ballot B30.20 Maintenance Section April 7, 2009

Rationale: To add the statement “If a qualified person determines it is appropriate, the program should also include that individual’s additional recommendations based on a review of the _______application and operations.”.






20-1.3.9 Maintenance





(a) Maintenance Program. A maintenance program shall should be established and be based on recommendations made by the lifter manufacturer. If or a qualified person determines it is appropriate, the program should also include that individual’s additional recommendations based on a review of the lifter application and operations.

(a) Maintenance Program. A maintenance program shall should be established and be based on recommendations made by the vacuum lifting device manufacturer. If or a qualified person determines it is appropriate, the program should also include that individual’s additional recommendations based on a review of the vacuum lifting device application and operations.

(a) Maintenance Program. A maintenance program shall should be established and be based on recommendations made by the lifting magnet manufacturer. If or a qualified person determines it is appropriate, the program should also include that individual’s additional recommendations based on a review of the lifting magnet application and operations.

(a) Maintenance Program. A maintenance program shall should be established and be based on recommendations made by the lifting magnet manufacturer. If or a qualified person determines it is appropriate, the program should also include that individual’s additional recommendations based on a review of the lifting magnet application and operations.

(a) Maintenance Program. A maintenance program shall should be established and be based on recommendations made by the grapple manufacturer. If or a qualified person determines it is appropriate, the program should also include that individual’s additional recommendations based on a review of the grapple application and operations.

(4) After adjustments and repairs have been made, the lifter shall not be returned to service until it has been inspected according to para. 20-1.3.4.

(4) After adjustments and repairs have been made, the vacuum lifting device shall not be restored returned to service until it has been inspected according to para. 20-2.3.3.

(4) After adjustments and repairs have been made, the lifting magnet shall not be returned to service until it has been inspected according to para. 203.3.4(c).

(4) After adjustments and repairs have been made, the lifting magnet shall not be returned to service until it has been inspected according to para. 20-4.3.1(c).

(4) After adjustments and repairs have been made, the grapple shall not be returned to service until it has been inspected according to para. 20-5.3.3.

(5) Dated records of repairs and replacements should be made.


(5) Dated records of repairs and replacements should be made. available.




09-700 B30.20 Maintenance Section – Editorial corrections to be presented at the May 2009 meeting. April 24, 2009

Rationale: To fix the incorrect references to the Periodic Inspection paragraphs in Chapters 20-2, 20-3 & 20-4.











(a) (4) After adjustments and repairs have been made, the lifter shall not be returned to service until it has been inspected according to para. 20-1.3.4.

(a) (4) After adjustments and repairs have been made, the vacuum lifting device shall not be returned to service until it has been inspected according to para. 202.3.3. 20-2.3.4.

(a) (4) After adjustments and repairs have been made, the lifting magnet shall not be returned to service until it has been inspected according to para. 203.3.4(c). 20-3.3.4.

(a) (4) After adjustments and repairs have been made, the lifting magnet shall not be returned to service until it has been inspected according to para. 20-4.3.1(c). 20-4.3.3.

(a) (4) After adjustments and repairs have been made, the grapple shall not be returned to service until it has been inspected according to para. 20-5.3.3.

(20-1.3.4 Periodic Inspection)





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Revision of B30.20-2006

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