Crosby McKissick 731, 732 Oilfield Crown Blocks - Range from 13,500kg to 170,000kg
Model: McKissick 731, 732 / OCB-2535Oilfield Servicing, Crown Blocks.
Built using McKissick Roll-Forged sheaves with flame hardened grooves. Designed with double row pre-adjusted sealed tapered bearings mounted on a steel shaft and Heavy center and side plates for proper support of center pin.- Pre-assembled units for rapid attachment to crown assembly for installation on derrick.
- On multiple sheave assemblies, one sheave can be grooved for sand line on request.
- Other sizes available upon request.
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| 731 | 732 |
Specifications
| Sheave Diameter (in.) |
Block No. | Crown Block Stock No. | No. of Sheaves | Working Load Limit (Tons) |
Standard Wire Rope Size (in.)* |
Weight Each (lbs.) |
| 24 | 241 | 351158 | 1 | 15 | 7/8 | 200 |
| 24 | 242 | 351167 | 2 | 30 | 7/8 | 278 |
| 24 | 243 | 351176 | 3 | 45 | 7/8 | 375 |
| 24 | 731 | 351185 | 1 | 35 | 1 | 200 |
| 24 | 732 | 351194 | 2 | 75 | 1 | 350 |
| 24 | 733 | 351201 | 3 | 100 | 1 | 525 |
| 24 | 734 | 351210 | 4 | 125 | 1 | 720 |
| 30 | 741 | 351229 | 1 | 40 | 1-1/8 | 325 |
| 30 | 742 | 351238 | 2 | 80 | 1-1/8 | 560 |
| 30 | 743 | 351247 | 3 | 110 | 1-1/8 | 800 |
| 30 | 744 | 351256 | 4 | 140 | 1-1/8 | 982 |
| 30 | 745 | 351265 | 5 | 170 | 1-1/8 | 1163 |
Metric
| Sheave Diameter (mm) | Block No. | Crown Block Stock No. | No. of Sheaves | Working Load Limit (t) | Standard Wire Rope Size (mm)* | Weight Each (kg) |
| 610 | 241 | 351158 | 1 | 13.5 | 22 | 91 |
| 610 | 242 | 351167 | 2 | 27 | 22 | 126 |
| 610 | 243 | 351176 | 3 | 40.5 | 22 | 170 |
| 610 | 731 | 351185 | 1 | 31.5 | 25 | 91 |
| 610 | 732 | 351194 | 2 | 67.5 | 25 | 159 |
| 610 | 733 | 351201 | 3 | 90 | 25 | 238 |
| 610 | 734 | 351210 | 4 | 113 | 25 | 327 |
| 762 | 741 | 351229 | 1 | 36 | 28 | 147 |
| 762 | 742 | 351238 | 2 | 72 | 28 | 254 |
| 762 | 743 | 351247 | 3 | 99 | 28 | 363 |
| 762 | 744 | 351256 | 4 | 126 | 28 | 445 |
| 762 | 745 | 351265 | 5 | 153 | 28 | 528 |
*May be furnished in other wire rope sizes.
NOTE: Pricing and specifications may be subject to change without notice. Prices shown may be UK only prices and therefore export pricing may vary dependant on location.
Images are for display purposes only.
Images are for display purposes only.




