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  • To: CEMC Estimating Department Yes, I am interested in obtaining more information about your services in the areas of: _____ Machining _____ Screws and Augers _____ Fabrication _____ Flighting _____ Welding Description ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Qty. __________ From: Name _____________________________ Title _________________________ Company _______________________________________________________________ Address _______________________________________________________________ City ___________________________ State ______________ Zip ____________ Phone _________________________ Fax ________________________ Would you like CEMC to update your manual periodically? [ ] Yes [ ] No

    1000 Waconia Ave. SW Cedar Rapids, IA 52404 Phone: 319-364-5600 Fax: 319-364-6449

    Fax Inquiry

  • 3 Conveyor Eng. & Mfg. 1999

    Conveyor Eng. & Mfg.

    INTRODUCTION

    Conveyor Eng. & Mfg. Co. (CEMC) would like to thank you for expressing interest in our product. We specialize in stainless steel screw conveyors used in a variety of industries. The cornerstone of our success for over two decades in this industry has been our ability to provide a quality product at a reasonable price in a timely manner. Service: Our commitment to outstanding service has been the main reason for our consistent growth since 1970 as we recently doubled our manufacturing facility to maintain this level. When it comes to service, we have one goal - to provide the best in the industry. Absolutely no one ships hot jobs quicker. We can do this by stocking approximately 1 million pounds of stainless steel raw material and operating only one full shift in our manufacturing plant. This allows us the flexibility to extend hours when needed and greater access to key equipment and material when hot jobs are ordered. We have a full engineering staff on hand capable of performing simulations, finite element analysis, approval designs, or just to answer any questions you may have. Quality: When it comes to quality, we will put our products up against anyone in the industry. Prior to manufacturing all conveyor designs must pass a computer stress analysis covering bolts, flights, pipe and shafts. On request, this information can be provided at time of quotation. Our components are manufactured in-house allowing us to keep tight reign on quality control and are checked by a full time inspector prior to shipping. Price: Our stainless conveyors are built entirely under our roof. You will not pay multiple markups for subcontracted parts. We handle complete manufacturing and engineering functions through our facility in Cedar Rapids. This means that even with industry leading standards for quality and service, we can still offer very competitive prices. References: Our customer base has grown mainly by word of mouth through satisfied customers over the years. This has given us the opportunity to work with companies such as:

    A.E. Staley Abbott Labs ADM AGP American Crystal Sugar Cargill Cerestar Con-Agra Consolidated Paper Corn Products Domino Sugar Dow Chemical DuPont General Mills Georgia-Pacific

    Grain Processing Corp. Hershey Hormel IBP Imperial Holly Sugar International Paper James River Paper Kellogg Kraft M & M Mars Michigan Sugar Minnesota Corn Products Monfort Monsanto Nabisco

    National Starch & Chem. Nestle Penford Products Ponderosa Pulp Products PPG Procter & Gamble Quaker Oats Ralston Roquette America Southern Minn. Beet Sugar Wausau Paper Western Sugar

    Weyerhaeuser Again, thank you for the opportunity to get to know us better - we are very proud of the work we do and would like to have an opportunity to satisfy your screw conveying needs.

  • 4 Conveyor Eng. & Mfg. 1999

    Conveyor Eng. & Mfg.

    TABLE OF CONTENTS

    Engineering Section Forward ............................................................................................................................................3 Conveyor Design Steps ...................................................................................................................6 Conveying Requirements .................................................................................................................6 Material Classification .................................................................................................................7-16 Special Materials and Applications ................................................................................................17 Material Lump Size ........................................................................................................................18 Conveying Capacity .......................................................................................................................19 Conveyor Sizing and Speeds .........................................................................................................21 Horsepower Calculation ............................................................................................................23-25 Conveyor Component Sizing ....................................................................................................26-27 Torsional Rating, Torque Calculation .............................................................................................28 Deflection .......................................................................................................................................29 Thermal Expansion ........................................................................................................................30 Screw Conveyor Components Layout ............................................................................................................................................31 Screws ......................................................................................................................................32-41 Shafts .......................................................................................................................................42-45 Troughs .....................................................................................................................................46-50 Endplates ..................................................................................................................................51-56 Covers ......................................................................................................................................57-60 Hangers ....................................................................................................................................61-65 Hanger Bearings .......................................................................................................................66-67 Grease Tubes ................................................................................................................................66 Inlets ..............................................................................................................................................68 Internal Collars ...............................................................................................................................69 Discharge ..................................................................................................................................70-71 Flange Foot/Saddle .......................................................................................................................72 Seals .........................................................................................................................................73-75 Bearings ....................................................................................................................................76-78 Clamps ...........................................................................................................................................79 Gasketing / Flanges ..................................................................................................................80-81 Flange Bolt Patterns .................................................................................................................82-83 Coupling Bolts ................................................................................................................................84 Shrouds .........................................................................................................................................85 Gates ........................................................................................................................................86-87 Installation and Maintenance .................................................................................................89-90 Engineering .............................................................................................................................91-94 Index ........................................................................................................................................95-96

  • 5 Conveyor Eng. & Mfg. 1999

    Conveyor Eng. & Mfg.

    ENGINEERING The screw conveyor is one of the oldest methods of conveying materia