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| In reality, Elevator Belts are just conveyor belts with
a 15% to 20% safety factor built in for the hole punching. The compounds are the same, but
you have to be careful if you are working with static-conducting, flame-resistant, and/or
oil-resistant grain elevator belts. |
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Call on RPI
for assistance in designing the elevator belt to suit your particular application,
selecting the right belting and installing the buckets. |
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| POPULAR STOCK ELEVATOR BELTS |
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PVC 200 cos solid woven 3-ply, 330# 3/16" x 1/16" |
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PVC 350 cbs solid woven 4-ply, 440# 1/4" x 1/16" |
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PVC 450 cbs solid woven 3-ply, 600# 1/16" x 1/16" |
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| ELEVATOR BELTING TIPS |
| Bucket elevator belts and conveyor belts have different
requirements. |
| For elevator service, you need to calculate the
strength of the belt needed to support the weight of the bucket and the material being
conveyed. In addition, you need to calculate the strength needed to handle the available
horsepower. This is easy to accomplish. Since the weight of the buckets is
essentially the same on both sides of the leg, the weight of the material is the
difference. |
The critical factors in elevator belting are the bucket projection
(how far it sticks out at the lip) and the tug of the bucket bolts on the belt carcass.
Can the carcass hold the bolts? Or, does it allow the bolt heads to wallow out the bolt
holes and pull through the belt to drop the load or tear the belt at this weakened area?
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| Buckets Dig To Load The spacing for the
buckets is determined when they dig into the boot for their loads. Typically, they
turn faster and throw the load away when they reach the top of the elevator. You usually
handle grain and other light, free flowing materials in this way. |
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| Loading Chute Feed When you must elevate large, lumpy materials, you space the buckets closer
together and fill them with a chute. Generally, the belt speeds are slower than with the
digging method. |
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| The type, size, weight, capacity, spacing, and
projection of the buckets are critical factors in determining the correct belt for
carrying the load and holding the buckets. The number
and size of the bolt and bolt heads are important, too. The design and application of
the elevator help determine the type of belt to use, the strength of the carcass, and the
covers necessary to protect the carcass from the materials being elevated. |
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| You should splice elevator belts with the buckets
mounted and the belt drawn tight. Vulcanized splices run the smoothest, but mechanical
joints can work well if spliced properly. |
