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Crosby M-491G 10" Tower/Derrick Hoist Block - 12 Ton WLL - #2021127

Crosby M-491G 10" Tower/Derrick Hoist Block - 12 Ton WLL - #2021127
SKU: CR-2021127MPN: 2021127
  • This product is eligible for FREE SHIPPING.
  • USUALLY SHIPS: 1 - 2 Days
  • Made in the United States of America!
  • This product is rated for overhead lifting.

Product Description

  • New design provides the dependability of standard McKissick Snatch Blocks, along with features that make it perfect for the challenging needs of Tugger Hoist and Tower Erection applications
  • All sizes are furnished with dual rated Wireline sheaves
  • Forged steel swivels, tees, yokes and shackles are Quenched & Tempered
  • Sheave lubrication through center pin for easy maintenance
  • Sealed tapered roller bearings extend the life of the center pin and bearings, and allows for faster line speeds than recommended with standard snatch blocks
  • Holes through side plates are available for secondary block securement device
  • Suitable for hoisting personnel, contingent upon all employees, including the winch operator, being trained to follow applicable Federal, local and industry standards
  • RFID equipped


Wire Rope Size
1/2" - 9/16"
Sheave Size
WLL (tons)
WLL (lbs)
Safety Factor
Weight (lbs)

Questions & Answers

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Safety Notice

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Although Westech Rigging Supply strives to manufacture and sell the highest quality rigging and safety gear, use of the gear is dangerous if not used correctly by competent trained professionals. Westech Rigging Supply disclaims any liability resulting from the misuse of its rigging and safety gear. Please take a moment to more thoroughly review our disclaimer.

Westech Rigging Supply rigging and safety gear is only intended to be used by competent trained professionals. Misuse of the rigging and safety gear can result in serious injury up to and including loss of life. As such, Westech Rigging Supply disclaims liability for any misuse or incorrect product selection by our customers.

Rigging and safety gear purchased from Westech Rigging Supply should be used in strict accordance with all industry and OSHA standards. At no time should rigging or safety gear be used beyond its certified load ratings (aka Working Load Limits). Normal wear and tear should be expected with use of rigging and safety gear; therefore, all gear should be thoroughly inspected before each and every use. Worn or unsafe rigging and safety gear should never be used.