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SCREW CONVEYORSCREW CONVEYOR

ANDANDBUCKET ELEVATORBUCKET ELEVATOR

ENGINEERING GUIDEENGINEERING GUIDE

KWS MANUFACTURING COMPANY, LTD.3041 CONVEYOR DRIVE

BURLESON, TEXAS 76028817-295-2247 800-543-6558 FAX 817-447-8528WEBSITE: WWW.KWSMFG.COME-MAIL: SALES@KWSMFG.COM

CATALOG #SC-1103

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KWS Manufacturing Company, Ltd. was founded in1972 to manufacture and sell screw conveyors andother bulk material handling equipment. KWS quicklybecame recognized as a key supplier of standard andspecialty equipment for a variety of industries. The

plant and facilities are currently a combined 125,000square feet. KWS provides complete engineeredsystems, screw conveyors and feeders, shaftlessconveyors, vertical screw conveyors, bucketelevators, live bottom bins, elevator buckets, Dragon-Flite conveyors, hoppers, belt conveyors, hollow-flitescrew processors and screw pumps.

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TABLE OF CONTENTS

ENGINEERING SECTION

Introduction.........................................................4

Material Characteristics .....................................5

Materials Table................................................. 6

Capacity ......................................................... 13

Capacity Table..................................................15

Component Selection ......................................17

Component Series Table .................................21

Horsepower Calculation...................................22

Torque Capacities ............................................26

Drive Arrangements .........................................29

Belts Guards.....................................................30

Screw Feeders.................................................31

Inclined Screw Conveyors...............................32

COMPONENT SECTION

Conveyor Screws.............................................33

KWS Quick Key ...............................................46

Conveyor Screw Components.........................49

Shafts................................................................50

Hangers............................................................52

Hanger Bearings..............................................53

Hanger Pocket .................................................54

Special Screw Conveyor Weld Finishes .........48

Trough Ends.....................................................62

End Bearings....................................................74

Thrust Collar.....................................................76

Roller Thrust Bearing.......................................78

Seals.................................................................79

Troughs.............................................................8

Flange Gaskets................................................8

End Flanges.....................................................9

Saddles and Feet.............................................9

Discharge Spouts.............................................9

Rack and Pinion Gates....................................94

Pneumatic Gates .............................................9

Covers ............................................................10

Clamps ...........................................................10

Inlets ...............................................................10

BUCKET ELEVATOR SECTION

Centrifugal Discharge Bucket Elevators........11

Positive Discharge Bucket Elevators.............11

Continuous Bucket Elevators.........................11

Hi-Capacity Centrifugal Discharge

Bucket Elevator..............................................12

Elevator Buckets ............................................12

SUPPLEMENTAL DATA

Layouts............................................................11

End Flange Bolt Patterns...............................11

Installation and Maintenance.........................11

Drag Master Conveyors.................................12

Terms and Conditions....................................12

Safety .............................................................12

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