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Sovonex Technology
Crown Block
We provide a wide range of advanced technology drilling rig crown blocks directly from our partner manufacturer in China.
Crown Block Features
All crown blocks conform to the API standards 4F & 8A as well as the in industrial standard SY/T5527.- Special hardening of the sheave groove makes it wear-resistant and ensures a long service life.
- Crown block equipped with wireline ward device preventing the wireline to bounce or fall off.
- Equipped anti-collision buffer wood and a protective net.
- Comes with a hoisting device for easy maintenance of the sheaves.
- Equipped with and block and auxiliary block.
- The sheaves of the crown block and the sheaves of the travelling block are fully interchangeable.
Specifications of Crown Block
| Model | CB30 | CB50 | CB90 | CB135 | CB170 | CB225 | CB315 | CB450 |
|---|---|---|---|---|---|---|---|---|
| Max. hook load kN (lbs) | 300 (66000) | 500 (110000) | 900 (200000) | 1350 (300000) | 1700 (374000) | 22250 (500000) | 3150 (700000) | 4500 (1000000) |
| Wireline Ø mm (in) | 24 (1 5/16) | 24 (1 5/16) | 26 (1) | 29 (1 1/8) | 29 (1 1/8) | 32 (1 1/4) | 35 (1 3/8) | 38 (1 1/2) |
| Sheave OD mm (in) | 475 (18 3/4) | 610 (24) | 660 (26) | 1005 (40) | 1005 (40) | 1120 (44) | 1270 (50) | 1524 (60) |
| Number of sheaves | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 |
| Dimensions (LxWxH) mm | 738x 472x 575 | 860x 670x 588 | 1208x 1092x 1207 | 2320x 1436x 1781 | 2668x 2460x 1855 | 2668x 2709x 2469 | 3112x 2783x 2800 | 3407x 2722x 2856 |