There’s a Columbia dump block design that’s right for your rigging.
Product Details:
- High strength steel construction
- Supplied with Astralloy® shaft
- Timken® Bearings
- Machined lock nuts with seals
- Cast nut protection
Same- and opposite-plane designs for all Columbia dump blocks are available
Our same-plane and opposite-plane designs use standardized pin lengths and diameters, with eccentric bushings at the pin holes. Columbia Steel dump blocks are compatible with the ferrule socket system. You can pass a wire rope ferrule end through an assembled dump block — no more disassembling for changing out ropes. Tighter (sheave/side-frame) mating also helps to guide rope and exclude dirt.