Digital Re-print - January| February 2011
How to select the proper plastic resin replacement elevator bucket
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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-
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: email@example.com 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 tapcoinc.com
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.
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.
A Division of
Grantham Engineering Ltd
erly installed Harlaxton Road, Grantham,
Lincolnshire NG31 7SF, UK SCREENS
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 firstname.lastname@example.org 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 email@example.com
There are two categories of centrifugal www.chief.co.uk
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.
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
www.tapcoinc.com. FANGED HEAD 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 • www.tapcoinc.com
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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