Centrifugal discharge buckets in multiple rows are offset from adjacent buckets. This reduces harmonic vibration and reduces discharge “pulse” in large-capacity elevators. Bucket spacing is projection +2" to projection +1" (plastic cups only).
Vented or Perforated Buckets: nearly all popular non-metallic (plastic) and metal buckets are available with a variety of vent perforation patterns.
Vents allow greater filling and discharge by eliminating entrapped air and vacuum during operation. Bulk materials with density less than 25 lb/ft3 should always
be used with vented buckets.
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Steel bucket from which plastic buckets were originally adapted.
Essentially the same fabricated bucket is offered by several manufacturers, including Grain-Belt, who purchased the old K.I. Willis bucket line.
Spacing on belt for metal buckets is not to be less than projection +2". This is because steel buckets are heavier than equivalent plastic cups.
Most US steel buckets are fabricated rather than stamped.
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1-piece stamped metal cups are available. These are most common from European suppliers and used in EU markets. 4-B offers them in the US.
Tapco offers a large selection of bucket sizes and
non-metallic materials for most applications.
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• Many bucket manufacturers offer buckets made of fabricated or pressed steel, or non-metallic (polyethylene, urethane, nylon). Essmueller elevators may be furnished with any bucket requested.
• Polyethylene is suitable for grains, feeds, fertilizers, seeds, salt, sand, chemicals, food products
• Nylon is appropriate for soybeans, fertilizers, salt, sand, chemicals, rough or abrasive products
• Urethane is used
for pelletized or extruded feeds, soybeans, fertilizers, oyster shells, salt, sand, chemicals, other abrasive products.
• Steel buckets have greater cubic inch
capacities than plastic buckets of similar size. Plastic buckets are normally phyically larger than advertized size to compensate for having thicker walls.
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