Crosby McKissick High Capacity Oilfield Drilling Blocks - Range from 50,000kg to 1,000,000kg
Model: McKissick RP / ODB-2538RP Style Oilfield Drilling Blocks.

Drilling blocks avilable in capacities of 250, 350, 500, 750 and 1000 Tons. Complete with double row, pre-adjusted tapered bearings with seals. Blocks contain McKissick® Roll-Forged API Profile sheaves with flame hardened grooves.
Features
- Easy opening guards for quick string-up (no bolts to pull out and lose).
- Bail design to adapt to comparable capacity drilling equipment
- Additional weights available upon request.
- Manufactured to the requirements of API 8C, including all documentation.
- Each block is individually serialized for full traceability.
- Furnished with Certificate of Conformance.
- Minimum design temperature of -20 degree C (-4 degree F).
- Standard top coat finish is safety orange enamel.
- Other paint colors and systems are available on request
- Indiviual parts are primer coated on exposed surfaces.
- Block side plates can be drilled to adapt customer supplied equipment.
- Easy bail pin removal.
Metric Specifications
| Working Load Limit Tonnes | Sheave Diameter (mm) | Standard Wire Rope Size (mm)* | Weight Each (kg.) | Dimensions (mm) | ||||||||||
| A |
B |
C |
D |
E |
F | H | J |
K | L |
M |
||||
| 250 | 914 |
28 |
2540 |
1880 |
1600 |
279 |
914 |
991 |
616 |
127 | 63.5 | 88.9 | 276 | 202 |
| 250 | 1067 |
28 |
3198 |
2032 |
1753 |
279 |
1067 |
1118 |
616 |
127 | 63.5 | 88.9 | 276 | 202 |
| 350 | 1067 |
32 |
3243 |
2032 |
1753 |
279 |
1067 |
1118 |
616 |
127 | 63.5 | 88.9 | 276 | 202 |
| 500 | 1524 |
35 |
7303 |
2496 |
2140 |
356 |
1524 |
1562 |
382 |
152 | 88.9 | 102 | 381 | 324 |
| 750 | 1524 |
38 |
9888 |
2724 | 2343 |
381 |
1524 |
1562 |
991 |
229 | 114 | 127 | 470 | 432 |
| 1000 | 1829 |
44 |
17463 |
3232 |
2775 |
457 |
1829 |
1829 |
1226 |
229 | 127 | 159 | 502 | 540 |
Imperial Specifications
| Working Load Limit Tonnes | Sheave Diameter (in.) | Standard Wire Rope Size (in.)* | Weight Each (lbs.) | Dimensions (in.) |
||||||||||
| A |
B |
C |
D |
E |
F |
H | J |
K | L |
M | ||||
| 250 | 36 | 1-1/8 | 5600 | 74.00 | 63.00 | 11.00 | 36.00 | 39.00 | 24.25 | 5.00 | 2.50 | 3.50 | 10.88 | 7.94 |
| 250 | 42 | 1-1/8 | 7050 | 80.00 | 69.00 | 11.00 | 42.00 | 44.00 | 24.25 | 5.00 | 2.50 | 3.50 | 10.88 | 7.94 |
| 350 | 42 | 1-1/4 | 7150 | 80.00 | 69.00 | 11.00 | 42.00 | 44.00 | 24.25 | 5.00 | 2.50 | 3.50 | 10.88 | 7.94 |
| 500 | 60 | 1-3/8 | 16100 | 98.25 | 84.25 | 14.00 | 60.00 | 61.50 | 32.75 | 6.00 | 3.50 | 4.00 | 15.00 | 12.75 |
| 750 | 60 | 1-1/2 | 21800 | 107.25 | 92.25 | 15.00 | 60.00 | 61.50 | 39.00 | 9.00 | 4.50 | 5.00 | 18.50 | 17.00 |
| 1000 | 72 | 1-3/4 | 38500 | 127.25 | 109.25 | 18.00 | 72.00 | 74.00 | 48.25 | 9.00 | 5.00 | 6.25 | 19.75 | 21.25 |
* 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.

