Bottom Blocks from Bushman Equipment

Bushman Equipment bottom blocks are designed for your specific application. Sheave configuration, capacity, special control requirements and unique reeving patterns can be incorporated to improve your crane operation.

The motor driven 360° rotating bottom block permits the crane operator to position heavy or awkward loads in less accessible work areas.

Standard non-motorized bottom blocks are available for retrofitting or modernization projects. They can also be manufactured in larger quantities for new crane installations.

All Bushman Equipment bottom blocks are designed and manufactured in accordance with CMAA 70 and 74 and AISE Spec 6.

Available in the Following Crane Service Classifications
Bottom Block Model 517

A: Standby or infrequent service
B: Light service - to 5 lifts per hour, 50% of capacity
C: Moderate service - to 10 lifts per hour, 50% of capacity
D: Heavy duty service - high speed, to 20 lifts per hour, 65% of capacity
E: Severe service – high speed, over 20 lifts per hour, 100% capacity
F: Continuous severe service – production critical, continuous service, 100% capacity

AISE Spec. 6: Mill duty rated, production critical, continuous service, 100% capacity

Standard Features of Bushman Equipment Bottom Blocks:

Optional Features of Bushman Equipment Bottom Blocks: