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CEMA 300-1999 Revision of ANSI/CEMA 300-1988
CEMA STANDARD NO. 300
SCREW CONVEYOR DIMENSIONAL STANDARDS
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CONVEYOR EQUIPMENT MANUFACTURERS ASSOCIATION ISBN 1-891171-46-1 PDF Version of ISBN 1-891171-27-5
MEMBERS OF THE CEMA SCREW CONVEYOR PRODUCT SECTION
For a current list of Screw Conveyor Section companies, visit CEMA’s web site: www.cemanet.org.
CEMA ORGANIZATIONAL CHART BOARD OF DIRECTORS
COMMITTEES
OFFICERS
Meet in March and/or September
Conference
Unit Handling Conveyor Section
General Bulk Conveyor Section Finance and Budget Strategic Planning
Bulk Handling Components and Systems
Screw Conveyors
Conveyor Chain
Controls
Palletizers
Insurance Meetings Membership
Administr Administration ation and Operation Operations s Managers Conference
Joint Management Conference
Meet Each May
Engineering Conference
Idlers Committees
Pulleys
Policy and Nominating Conveyor Chain Public Relations Performance Terminology Statistics
Accessories Accessories
Unit Handling Section
Bulk Handling Section
Screw Conveyors Belt Systems
400 Series Standards
Safety Steering
Belt Manual Safety
Controls
For Information on Company Membership visit the CEMA Web Site at http://www.cemanet.org
Terms and Definitions
International Standards
MEMBERS OF THE CEMA SCREW CONVEYOR PRODUCT SECTION
For a current list of Screw Conveyor Section companies, visit CEMA’s web site: www.cemanet.org.
CEMA ORGANIZATIONAL CHART BOARD OF DIRECTORS
COMMITTEES
OFFICERS
Meet in March and/or September
Conference
Unit Handling Conveyor Section
General Bulk Conveyor Section Finance and Budget Strategic Planning
Bulk Handling Components and Systems
Screw Conveyors
Conveyor Chain
Controls
Palletizers
Insurance Meetings Membership
Administr Administration ation and Operation Operations s Managers Conference
Joint Management Conference
Meet Each May
Engineering Conference
Idlers Committees
Pulleys
Policy and Nominating Conveyor Chain Public Relations Performance Terminology Statistics
Accessories Accessories
Unit Handling Section
Bulk Handling Section
Screw Conveyors Belt Systems
400 Series Standards
Safety Steering
Belt Manual Safety
Controls
For Information on Company Membership visit the CEMA Web Site at http://www.cemanet.org
Terms and Definitions
International Standards
FOREWORD This publication, CEMA Standard No. 300 “Screw Conveyor Dimensional Standards”, provides recommended dimensional standards for major screw conveyor components. All Dimesions and Tolerances Tolerances are based on Carbon Steel Fabricaton. These recommended standards are issued in conjun ction with CEMA Standard Standard No. 350 “Screw Conveyors ”. “Screw Conveyors” is a comprehensive manual of engineering a nd application practice for screw conveyors. Both publications are intended to be American National Standards. Standards.
SUMMARY OF CHANGES In this 1999 edition: All drawings have been redrawn to provide greater clarity and ease of interpretation; interpretation; The need for Safety Labeling has been emphasized in the “Safety Notice” below; Trough tolerances were changed from ± 1/32” to ± 1/16”; The Notes on Lug Ends were modified to delete the words “on all sizes”; Hex head bolts replaced countersunk bolts in 300-013 and 300-014; In 300-033, Note 1 hs been modified to allow the manufacturer the option of having the Flush End Discharge the same dimension as U Trough End Plates.
SAFETY NOTICE The Conveyor Equipment Manufacturers Association has developed Industry Standard Safety Labels for use on the conveying equipment of its member companies. The purpose of the labels is to identify common and uncommon hazards, conditions, and unsafe practices which can injure, or cause the d eath of, the unwary or inattentive person who is working at or around conveying equipment. The labels are available for sale to member companies and non-member companies. A full description of the labels, their purpose, and guidelines on where to place the labels on typical equipment, has been published in CEMA’s CEMA’s Safety Label Brochure, Brochure, Brochure No. 201. The Brochure is available for purchase by members and non-members of the Association. Safety Labels and Safety Label Placement Guidelines, originally published in the Brochure, are also available free on the CEMA Web Site at http://www.cemanet.org/ CEMA_Safety_Pg.htm PLEASE NOTE: Should any of the safety labels supplied by the equipment manufacturer become unreadable for any reason, the equipment USER is then respons ible for replacement and location of these safe ty labels. Replacement labels and placement guidelines can be obtained by contacting your equipmen t supplier or CEMA.
CONVEYOR EQUIPMENT MANUFACTURERS MANUFACTURERS ASSOCIATION
6724 Lone Oak Blvd Naples, Florida 34109 Web Site: http://www.cemanet.org CEMA Standard No. 300 - Copyright 1999 (PDF) Printed in the U.S.A. ISBN 1-891171-46-1
