How to select the proper plastic resin replacement elevator bucket by GFMT


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									       Digital Re-print - January| February 2011
How to select the proper plastic resin replacement elevator bucket

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      FEATURE                                                                                                                                                                                                                                                                                                                 FEATURE

                                                                                                                                                                                                                                                                                   Shangdong Yingchun
       How to select the proper plastic
                                                                                                                                                                                            discharge style bucket eleva- sand, coal, clay, sand, gravel, and crushed
                                                                                                                                                                                            tors: High speed (operates at glass. Commonly used bucket styles for this                           Carl Swisher - Bio

                                                                                                                                                                                                                                           Steel Silo Manufacturing
                                                                                                                                                                                           speeds faster than 91 mpm) elevator include Style A, AA and AARB,                                                              Carl Swisher, Tapco
                                                                                                                                                                                                                                                                                                                      Sales Manager, oversees

      resin replacement elevator bucket                                                                                                                         Bent and torn              and slow speed (operates at which has a reinforced back. Style AA
                                                                                                                                                                                          speeds under than 107 mpm). buckets are readily available in polyethyl-                                                     domestic and inter-
                                                                                                                                                                 steel buckets
                                                                                                                                                                                         High-speed elevator buckets ene, nylon, urethane, ductile iron or steel.                                                     national sales force.
                                                                                                                                                                                        INNOVATION - PURSUIT OF
                                                                                                                                                                            TRUTH - come in many different shapes EXCELLENCE - QUALITY - PEOPLE ORIENTED - PROFOUND KNOWLEDGE of                                      Swisher has 20 years
                                                                                                                                                                                       and sizes. The two most common Ductile Iron • Urethane •                                                                       experience in industrial
                                                                                                                                                                                       bucket styles used in high-speed Polyethylene • Nylon                                                                          sales and international
                                                                                                                                                                                      centrifugal discharge elevators are                            Switching to Plastic Resin                 business. Prior to joining Tapco, Swisher was
                                                                                                                                                                         “With over 50 years of experience in the industry, we have built a solid reputation for “Yingchun”.
                                                                                                                                                                                     the North American CC (close                                    In order to select the appropriate plastic the Latin America Regional Sales Manager
                                                                                                                                                                         This reputation is based on our scientific management, advanced processing, strict qualitysupplier in the sewn          for a leading parts control
                                                                                                                                                                                    center) style and European style. bucket, one must consider the character-
                                                                                                                                                                         and excellent after sales service.
                                                                                                                                                                                   They handle materials such as grains, istics of the conveyed bulk material being                             products industry. Proficient in Spanish, he
                                                                                                                                                                                                                                                                                                is a graduate of Washington University in St.
                                                                                                                                                                                   stick to feed pellets, salt, seeds, first, credit uppermost, take into
                                                                                                                                                                         We will feed and our tenet of “Quality handled. Important factors to customer guided, common his graduate studies at   Louis and completed
                                                                                                                                                                                  fertilizer, and dry chemicals.                                  account are the size, shape, bulk density,
                                                                                                                                                                         development” and provide the best products and services forflow-ability  temperature, moisture content,
                                                                                                                                                                                                                                                                                     you”       the Stern School of New York University.
                                                                                                                                                                                 Urethane • Nylon •                                               and abrasiveness of conveyed material.            Founded in 1974, Tapco Inc is a lead-
                                                                                                                                                                                 Polyethylene.                                                       The three most common plastics are         ing manufacturer of elevator buckets with
                                                                                                                                                                                    Slow-speed buckets are used to high-density polyethylene (HDPE), nylon                                      900,000 buckets in stock – available in poly-
by Carl Swisher, Tapco Inc.                                                                                                                                                     handle materials heavier and larger and urethane (thermo plastic urethane).                                     ethylene, polyurethane, nylon, aluminum,
                                                                                                                                                                                materials, such as aggregates, foundry Each plastic carries a number of different                               ductile iron and fabricated steel. Standard

      very machine part will eventual-               from the upper most point of the bucket to            proper grade of the selected resin.                                                                                                                  advantages when paired cor-     styles include AA, AC, Continuous, CCB,
      ly wear out, needing replacement.              the bottom most point. Bolt hole spacing or               The weight of the elevator bucket                                                                                                                rectly with the corresponding   CC-HD, CC-XD and Super EuroBucket.
      Elevator buckets are no exception              centers are measured from the left edge of one        contributes significantly to the                                                         Specifying the Bucket                                       bulk solid.                     Tapco also maintains a large inventory
 to this rule. Before selecting a replace-           hole to the left edge of the second hole.             total cost of the elevator. By                                                            (A) length, (B) projection, and (C) depth.
                                                                                                                                                                                                                                                                    With the correct selec-     of elevator bolts, belt splices or joiners,
                                                                                                                                                                                                  (T) Silo Manufacturing
                                                                                                                                                                     Shandong Yingchun Steel thickness, (WL) water level, (E) hole centers Co., Ltd.
 ment bucket, it is helpful to know                       Why is Plastic Resin Better Than Metal?          using lighter weight plastic resin                        Address: No.101, Beiyi Road, Dongying City, Shandong Province                              tion of plastic replacement     abrasion-resistant sheeting, drag flights, and
 several pieces of information...                         Elevator buckets made from plastic resins        buckets – approximately half the                          Tel: +86 546 8313068                                                                       buckets and good preven-        hanger bearings.
                                                     are now the market norm of the bulk material          weight of metal buckets – elevator                        Email:                                                         tive maintenance, operators              Carl Swisher, Sales Manager, TAPCO
   1: Your elevator type: industrial or              handling industry. Plastic provides the following     manufactures can use lighter gauge                                                                                                        and maintenance managers                 INC, St. Louis, Missouri USA
      agricultural;                                  basic advantages over metal:                          belts, smaller pulley shafts and bear-                                                                                                    can look forward to many                 Tel: +1 314 739 9191 ext. 1920, www.
   2: Bucket elevator manufacturer;                    • Lighter in weight;                                ings, and reduce their horsepower and                                                                                                     years of proper and profitable 
   3: Material being handled;                          • Non-corrosive, rust-free and non-sparking;        mechanical transmission requirements.                                             Back View                       End View                operation.
   4: Bucket dimensions;                               • Safe food grade material;                         This also means less wear and tear on elevator
   5: Material of bucket construction.                 • Impact strength;                                  drive components.                                       Mog65th#5 GFM02 Conveying 132x90:GFMT 132x90 27/01/2011 16:24 Pag
                                                                                                                                                                      Shangdong.indd 1                                                                                                                                             01/06/2010 11:35
      Selecting a replacement elevator bucket for      • Flexible yet strong.                                  Another important factor is the ease of
 your bucket elevator can be a challenge, espe-           The major advantage of any plastic bucket is     installation of plastic buckets. Due to their
 cially when you consider how many different
 buckets are on the market. Properly selecting
 the correct elevator bucket can keep your
                                                     its physical ability to absorb an impact inside the
                                                     elevator leg. More buckets tear up and break
                                                     due to impacts and obstructions, than are worn
                                                                                                           lighter weight and lack of hazardous, sharp
                                                                                                           edges, they are much easier to handle when
                                                                                                           changing or retrofitting in an elevator. This
                                                                                                                                                                       MAKE SURE IT’S A…
                                                                                                                                                                                                                                                                 Quality grain handling
 operation running smoothly, cut maintenance         out by abrasion from the product carried. Bent        makes the job easier and safer for those tasked
                                                                                                                                                                                                                                                                  Chief dryers                                Chief silos
 costs and improve elevator efficiency. Regularly    and torn buckets cause a myriad of problems           with keeping the bucket elevators running at                For all your CONVEYING                                                                                                     Supplied to European DIN or ASAE/ASTM Standards
 scheduled inspections are also an important         in the elevator: not efficiently carrying product,    peak performance.                                           and other vibratory
 factor to maximize productivity of your facility.   dragging and scraping inside the casing and                                                                       equipment needs –
                                                     creating a potential sparking hazard.                 Bucket Choices for Centrifugal
                                                                                                                                                                                                                                                                                                   Grain. It’s your business.
                                                                                                                                                                       whether you’re
 Measuring the Existing Elevator                          A well-designed                                         Discharge Style Elevators                            specifying, purchasing                                                                                                      Which is why we never
 Bucket                                              plastic bucket has                                                           Proper identification of             or installing.
                                                                                                                                                                                                                                                                                                   underestimate the importance
     The length of the bucket is measured across     the built in abil-                                                         elevator type and style of                                                                                                                                         of how it is handled.
 the back from outside wall to outside wall          ity to “give” or                                                           existing bucket – and then
 (dimension A). The projection is measured           “yield” to bypass                                                              matching it with a plas-                                                                                                                                       If you need a partner with the
 from the outside of the back wall to the tip        an obstruction in an                                                              tic replacement – is                                                                                                                                        expertise, technology and
 of the front lip at a perpendicular (90 degree)     elevator, return to its                                                             vital to ensuring                                   CONVEYORS
                                                                                                                                                                                                                                                                                                   manufacturing methods to
 angle off the back wall (dimension B). Often        original shape and keep                                                             the bucket eleva-                                                                                                                                         ensure that your storage plant
 projection is incorrectly measured from the top     on working. This requires                                                           tor continues to              Make sure it’s a…                                                                                                           is second-to-none in terms of
 of the back wall to the tip of the front lip. The   strong, consistent, uniform                                                                 operate               MOGENSEN                                                                                   Now distributing                 quality and processes, then
 depth of the bucket (dimension C) is measured       wall thickness and the                                                                        efficient-                                                                                                                                      look no further.
                                                                                                                                                    ly. The            The first name in                         SPREADERS                                       Marot rotary
                                                                                                                                                                       processing & recycling
                                                                                                                                                                                                                                                                 cleaners and                      You can trust in Chief.
                                                                                                                                                    bucket,            Mogensen
                                                                                                                                                                                      A Division of
                                                                                                                                                                                      Grantham Engineering Ltd
                                                                                                                                               erly installed                         Harlaxton Road, Grantham,
                                                                                                                                                                                      Lincolnshire NG31 7SF, UK                         SCREENS
                                                                                                                                            (with      close
                                                                                                                 bucket spacing) – assures the same or                 Tel            +44 (0)1476 566301
                                                                                                           INCREASED elevator capacity. Plastic resin                  Fax            +44 (0)1476 590145                                                                                           Beckingham Business Park, Tolleshunt Major
                                                                                                           elevator buckets are commonly found in cen-                 E-mail                                                                                         Maldon, Essex CM9 8LZ, UK
                                                                                                           trifugal discharge style elevators. In contrast,                                                                                                                                        Tel +44 (0)1621 868944
                                                                                                           metal buckets are still predominantly used in                                                                                                                                           Fax +44 (0)1621 868955
                                                                                                           continuous discharge style bucket elevators.                                                                                                                                            E-mail
                                                                                                                There are two categories of centrifugal                                                                                                                                  

 18 | January - february 2011                                                                                        Grain  &feed millinG technoloGy                       Grain  &feed millinG technoloGy                                                                                                        January february 2011 | 19
                                                                                                                                                                                                                                                                                                                 January - - february 2011 | 5
I    Precise Discharge                                                                                                                                                                                          I   Tough & Flexible
     Consistent profile shape assures uniform discharge                                                                                                  Injection molded polyethylene “gives” or “yields” to
     characteristics over the entire bucket range.                                                                                                         bypass obstructions in your elevator, allowing the
                                                                                                                                                                       bucket to return to its original shape.
I    Perfect Fit
     Direct replacement of existing steel and plastic                                                                                                                                                   I   Unequaled Strength
     buckets. No modifications to your elevator                                                                                                                                   Thick walls and prime virgin engineered
     are needed.                                                                                                                                                                      resins provide exceptional strength.

I    Profitable,                                                                                                                                                                                       I    I   Accurate & Reliable
     High-Speed                                                                                                                                                                                                    Capacity Ratings
     Handling                                                                                                                                                                                                                     Equal or greater
     Tested and proven                                                                                                                                                                                                                   carrying
     designs allow a                                                                                                                                                                                                                  capacity of
     direct, compact                                                                                                                                                                                                                   equivalent
     discharge path for                                                                                                                                                                                                                  size steel
     improved, high-speed                                                                                                                                                                                                                 buckets.
     performance.                                                                                                                                                                                                                       Rounded
                                                                                                                                                                                                                                    front lip aids
                                                                                                                                                                                                                                      in filling of
I   Increased Safety                                                                                                                                                                                                                      bucket.
    Non-metallic materials eliminate
    the possibility of explosion-causing
    sparking from bent and torn                                                                                                                                                                                            I   Cost Efficient
    steel buckets.                                                                                                                                                 Prime virgin resins give unsurpassed bucket life
                                                                                                                                                                              for maximum return on investment.
I   Ease of Installation
    Lighter weight aids in mounting buckets and
    reduces load on belt and running components.                                                                                                                     I   Ordered Today, Shipped Today
    Nonmetallic materials eliminate hazardous sharp                                                                                                         900,000 buckets in stock worldwide in more than
    edges of steel buckets.                                                                                                                                 64 sizes, 12 styles & 6 materials for fast delivery.

                                                                                                                                     STYLE SUPER EUROBUCKET ™ and STYLE CC-HD Polyethylene Elevator Buckets (pictured)

         How Tapco Buckets Make a World of Difference
                   in Your Elevator Facility
    Only from Tapco, the two most popular                                                   25% more capacity than the 8" buckets at a                                                Tapco elevator bolts have been specifically
    bucket designs in the world!                                                            very cost effective price.                                                                designed to work with nonmetallic buckets.
                                                                                            Wear and tear is a fact of life in many                                                   To achieve the most secure assembly, use
    For North American style elevators: the
                                                                                            elevators. Tapco urethane buckets are known                                               Tapco fanged elevator bolts and self-locking
    classic CC-HD design. For European style
                                                                                            for their exceptional wear characteristics.                                               nuts. Tapco stocks over 14 million bolts
    elevators: the Super EuroBucket.
                                                                                            Our nylon buckets are extremely strong,                                                   in six styles. If you would
    Do you need more capacity? Consider the                                                                                                                                           like to improve your
                                                                                            yet lightweight. If you are not using Tapco
    Tapco 8" and 9" CC-HD Super Capacity                                                                                                                                              elevator performance,
                                                                                            buckets, you are not getting the most out of                                                                                        FLAT
    buckets. Our 9" projection cups provide                                                                                                                                           contact Tapco or visit                COUNTERSUNK
                                                                                            your elevator!                                                                                                                      HEAD
                                                                                                                                                                                      FANGED HEAD Elevator Bolt
                                                                                                                                                                                                                                  Elevator Bolt

                                                                                 ELEVATOR BUCKETS - ELEVATOR BOLTS
                                                                                                              St. Louis, Missouri U.S.A.
          Tel.: +1 314 739 9191                              •        +1 800 AT-TAPCO (+1 800 288 2726)                              • Fax: +1 314 739 5880                                                         •
    The color blue, when used in connection with elevator buckets, is a U.S. registered trademark owned by Tapco Inc. Super EuroBucket ™ is a registered trademark of Tapco Inc. © 2010 Tapco Inc.® All rights reserved.
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                        •    Rospen                                        •            How to
                             Industries’ range                                       select the
                             of continuous                                               proper
                             weighing                                              plastic resin
                             equipment                                            replacement
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