680 Construction Blocks
- Wide Range of product available:
- Capacity: 5 to 100 tons - Larger models available
- Sheave sizes: 6" to 24" O.D.
- Wire Line Sizes: 3/8" to 1-1/4"
- Equipped with genuine Crosby® forged steel,Quenched and Tempered shackles that contain the patented QUIC-CHECK® markings.
- Design Factor 4 to 1.
With Shackle
- All 680 Series Blocks are furnished standard
with Bronze Bushings. - All 680 blocks 16" and larger, are furnished with McKissick® Roll Forged™ Sheaves with
flame hardened grooves. - Sheaves are lubricated through center pin, with
a separate lube channel to each sheave. - Manufactured by an ISO 900q and API Q1 Certified facility.
Options Available:
- Roller bearing sheaves
- Hanger & Bolt Only models available
- Third party testing with certification
- Galvanized finish - Most models
