Tower / Derrick Hoist Block McKissick M-491S

General: Suitable for hoisting personnel, contingent upon all employees, including the winch operator, being trained to follow any applicable Federal, local and industry standards.
Design: Recessed sideplates design reduces the gap between the sheave rim and the sideplate. Sealed tapered roller bearings. Shackle fitting swivels for easy positionering. Holes through side plate are available for secondary block securement device.

  • Material: Forged steel swivels, tees, yokes and shackles are Quenched & Tempered
  • Marking: WLL
  • Finish: Painted. Galvanized upon request
  • Safety factor: 4:1

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