AA Elevator Bucket
High Density Polyethelene
This versatile bucket comes in a wide range of materials to meet any needs you may have. They work especially well in high-throughput elevators that handle industrial-type materials. Whatever your elevator handles, there is a bucket to match it in the AA series.
Why Polyethylene?
This material is non-corrosive, tough and flexible, so polyethylene buckets create less product damage, reduce backlegging, and are nonsparking. It is lightweight and has a clean discharge, which makes polyethylene perfect for free-flowing product applications.
Features
- Prime virgin polyethylene
- Choose from 12 sizes
- Recommended capacity is 75% of gross capacity
- Can be intermixed with existing buckets
Applications
- Food Products
- Sugar
- Salt
- Coffee Beans
- Chemicals
- Minerals
- Wood Chips
Additional Materials
Measurement Conversion: Imperial Metric
| Size (Nominal) Inches |
Dimension-Actual (Inches) Tolerance A, B & C ± .25" T ± .03125" |
Hole Drilling-Standard (Inches) Holes Drilled .03125" Oversize |
Capacity ■ Tolerance ± 3% |
Approx. Weight (Pounds) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length A | Proj. B | Depth C | Thickness T | Center to Center E | Number of Holes | Bolt Diameter | Distance Down D | Between Rows G | Gross X-X | Usable | ||||
| Cu. In. | Cu. Ft. | Cu. In. | Cu. Ft. | |||||||||||
| 4 X 2-3/4 | 4-1/4 | 3 | 3-1/8 | 3/16 | 2-5/16 | 2 | 1/4 | 3/4 | -- | 14.7 | .008 | 11.0 | .006 | 0.22 |
| 5 X 3-1/2 | 5-3/8 | 3-3/4 | 3-3/4 | 1/4 | 3-3/16 | 2 | 1/4 | 1 | -- | 29.0 | .017 | 21.8 | .013 | 0.37 |
| 6 X 4 | 6-3/8 | 4-1/4 | 4-1/2 | 1/4 | 4-3/8 | 2 | 1/4 | 1 | -- | 48.6 | .028 | 36.4 | .021 | 0.50 |
| 7 X 4-1/2 | 7-3/8 | 4-3/4 | 5 | 1/4 | 2-1/2 | 3 | 1/4 | 1 | -- | 74.8 | .043 | 56.1 | .032 | 0.70 |
| 8 X 5 | 8-3/8 | 5-1/4 | 5-1/2 | 1/4 | 3 | 5 | ✽ 1/4 | 7/8 | 1 | 101.0 | .058 | 75.8 | .044 | 1.00 |
| 10 X 6 | 10-1/2 | 6-1/2 | 6-5/8 | 1/4 | 3-1/2 | 5 | ✽ 1/4 | 7/8 | 1 | 191.0 | .111 | 143.2 | .083 | 1.54 |
| 12 X 7 | 12-1/2 | 7-5/8 | 7-3/4 | 3/8 | 4-1/2 | 5 | ✝ 5/16 | 7/8 | 1 | 307.5 | .178 | 230.6 | .133 | 2.36 |
| 14 X 7 | 14-1/2 | 7-5/8 | 7-3/4 | 3/8 | 4 | 7 | 5/16 | 7/8 | 1 | 370.8 | .215 | 278.1 | .161 | 2.70 |
| 14 X 8 | 14-1/2 | 8-7/8 | 8-3/4 | 1/2 | 4 | 7 | 5/16 | 7/8 | 1 | 475.8 | .275 | 356.8 | .206 | 3.76 |
| 16 X 8 | 16-1/2 | 8-7/8 | 8-3/4 | 1/2 | 4-1/2 | 7 | ✝ 5/16 | 7/8 | 1 | 554.5 | .321 | 415.9 | .241 | 4.30 |
| 18 X 8 | 18-1/2 | 8-7/8 | 8-3/4 | 1/2 | 5 | 7 | ✝ 5/16 | 7/8 | 1 | 629.1 | .364 | 471.8 | .273 | 4.84 |
| 18 X 10 | 18-1/2 | 10-3/4 | 10-3/4 | 1/2 | 5 | 7 | ✝ 5/16 | 7/8 | 1 | 963.1 | .557 | 722.3 | .418 | 7.14 |
■ Tapco recommends using gross X .75, for usable capacity
✽ Buckets can be drilled for .25" or .3125" bolts, please specify. .25" is standard.
✝ Buckets can be drilled for .3125" or .375" bolts, please specify. .3125" is standard.
Style:
AA
Design:
Centrifugal discharge.
Material:
Prime virgin high density linear polyethylene.
Method of Manufacture:
Injection molded.
Color:
White.
Temperature Range:
-60°F to + 200°F/-51°C to + 93°C.
Flammability:
The high density polyethylene used in Tapco buckets is termed “slow burning”. It has been tested under ASTM Test No. D635. It also meets the criteria for approval under the Motor Vehicle Safety Standard No. 302 and Underwriters’ Laboratory Bulletin No. 94. Combustion in an excess of air results in harmless by-products (fumes) which are nontoxic.
Standard Drilling:
No charge for standard belt or chain drillings when order totals 50 or more pieces of the same size. Contact Tapco for quotation on orders of less than 50 and/or special drill pattern requirements.
Special Drilling:
Any pattern and hole diameter can be provided at minimal cost.
Venting:
Available on request. Contact Tapco for recommendations.
Usable Capacity:
Tapco recommends using 75% of gross, (100%) capacity.
Spacing:
A common spacing would be nominal projection plus 4", however both closer and greater spacings may be used depending upon the application.
Interchangeability:
Can be intermixed with existing metallic or nonmetallic buckets. Some care should be taken that the leg does not become too far out of balance. Bucket projection varies by manufacturer and material. Check elevator for proper clearances. Contact Tapco for recommendations.
Installation:
Fanged elevator bolts and nylon insert lock nuts are recommended for pulleys 6" in diameter and over. No. 3, Eclipse slotted head elevator bolts are recommended for pulleys under 6" in diameter. Flat steel washers must be placed inside the bucket under the nuts. Check elevator for proper clearances.
FDA Status:
Polyethylene used meets the requirements of the Food Additives Law and Regulation No. 177.1520.
Recommendations:
AA white polyethylene buckets are ideal for use in applications requiring food grade components.
Limitations:
Polyethylene buckets should not be used with the following: (1) Materials over 200°F/93°C. (2) Sharp-edged material such as crushed glass or oyster shells. (3) Large dense materials such as gravel and ores.
Caution:
Welding and cutting on elevator legs without taking proper precautions is extremely dangerous and can cause a violent explosion. Polyethylene buckets can be ignited and will burn from improper welding and cutting.
Important:
When elevating certain materials that harden or setup with moisture, a Tapco metallic digger bucket should replace every 10th polyethylene bucket. In some instances ductile iron AA style buckets (See page 43) will not have suffi cient projection to protect the polyethylene bucket. It will be necessary to use a pad or spacer behind the digger bucket. Contact Tapco for recommendations.