- In Accordance With API 4F, 8C
- Heavy Duty Sheave Lifting Frame for Repairing
- Heavy Duty Sheave Roller Bearings
- Forge welding Structure Sheaves.
| Crown Block | TC135 | TC170 | TC225 | TC315 | TC450 | TC585 | TC675 |
| Max. Hook Load (kN) | 4500 | 1700 | 2250 | 3150 | 4500 | 5850 | 6750 |
| Number of sheaves | 5 | 6 | 6 | 7 | 7 | 8 | 8 |
| Sheave diameter | 36” | 40” | 44” | 50” | 60” | 60” | 60” |
| Dia. Of drilling line | 1-1/8” | 1-1/8” | 1-1/4” | 1-3/8” | 1-1/2” | 1-5/8” | 1-3/4” |