Quick Ref: OHB-2532
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Crosby M- 491 McKissick Oilfield Hoist Blocks. Options Galvanized or Painted - Range from 4000kg to 15,000kg

Model:  McKissick M-491 / OHB-2532

Crosby Mckissick M-419 Oilfield Hoist Block, Galvanised or Self Coloured
Finish Type
Part N° Working Load Limit (t)* Sheave Diameter (mm) Wire Rope Size (mm) Weight Each (kg.) Guide Price Quantity
2532-T1546
2020170
4 203 10 - 13 16 Quote Required
2532-T1547
2020815
8 254 10 - 13 25 Quote Required
2532-T1548
2020833
8 254 13 - 14 25 Quote Required
2532-T1549
2021127
12 254 13 - 14 25 Quote Required
2532-T1550
2021145
12 356 16 43 Quote Required
2532-T1551
2021163
12 356 19 43 Quote Required
2532-T1552
2021181
15 406 22 68 Quote Required
2532-T1553
2021199
15 406 25 48 Quote Required
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Oilfield Servicing- Tower/Derrick Hoist Blocks.

  • A wide variety of configurations:
  • 4, 8, 12 or 15 metric ton capacity
  • 3/8", 7/16", 1/2", 9/16", 5/8", 7/8" and 1" wire line sizes
  • Painted and Galvanized finish
  • 8" and 10" blocks are furnished with dual rated wireline sheaves.
  • Forged steel swivels, tees, yokes and shackles are Quenched and Tempered.
  • Recessed side plate design reduces the gap between the sheave rim and the side plate, and allows the sheave assembly to be captured in the block if loss of center pin occurs.
  • Sheave lubrication through center pin for easy maintenance.
  • Design factor of 4 to 1.
  • All blocks 14" and larger are furnished with McKissick® Roll ForgedT sheaves with flame hardened grooves.
  • 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.
  • Suitable for hoisting personnel, contingent upon all employees, including the winch operator, being trained to follow any applicable Federal, local and industry standards.
  • Tugger/Derrick applications: API RP54
  • Tower applications: OSHA Directive CPL 2-1.36.
  • Holes through side plates are available for secondary block securement device.
  • Manufactured by an API Q1 Certified facility.

Specification

Working
Load Limit
(t)*
Sheave
Diameter
(in.)
Wire Rope
Size
(in.)
M-491 S
Stock No.
Painted
M-491 G
Stock No.
Galvanized

Weight
Each
(lbs.)
4 8 3/8 - 1/2 2020161 2020170 35
8 10 3/8 - 1/2 2020806 2020815 55
8 10 1/2 - 9/16 2020824 2020833 55
12 10 1/2 - 9/16 2021118 2021127 55
12 14 5/8 2021136 2021145 95
12 14 3/4 2021154 2021163 95
15 16 7/8 2021172 2021181 150
15 16 1 2021190 2021199 150

Metric

Working Load Limit (t)* Sheave Diameter (mm) Wire Rope Size (mm) M-491S Stock No. Painted M-491G Stock No. Galvanized Weight Each (kg.)
4 203 10 - 13 2020161 2020170 16
8 254 10 - 13 2020806 2020815 25
8 254 13 - 14 2020824 2020833 25
12 254 13 - 14 2021118 2021127 25
12 356 16 2021136 2021145 43
12 356 19 2021154 2021163 43
15 406 22 2021172 2021181 68
15 406 25 2021190 2021199 48
Crosby-catalogue-page-number-342-349.pdf

Product Warnings

PDF containing all warning information relevant to the safe use of this product
(approx. 0.5Mb)
M491.pdf

Technical Specification / Dimensional Drawings

(approx. 0.4Mb)
crosby-catalogue-page-332.pdf

Crosby catalogue page 332

(approx. 0.2Mb)

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