Specifications
TC315 crown block:1.standard: API Spec. 8A&4F.
2.The sheaves and bearings are interchangeable
TC315 crown block
- The crown block conform to API Spec. 8A&4F.
- Type:TC30,TC50,TC90,TC135,TC170,TC225,TC315,TC450,TC585
- The sheave grooves are intermediate frequency quenched so as to provide surface hardness and extend service life of sheaves.
- The drilling line is reeved in paralle or in blend.
- The sheaves and bearings are interchangeable with those of matching travelling block.
Model | TC30 | TC50
| TC90 | TC135 | TC170 | TC225 | TC315 | TC450 | TC585 |
Max. hook load KN | 300 | 500 | 900 | 1350 | 1700 | 2250 | 3150 | 4500 | 5850 |
O.D. of sheaves mm(in) | 475(18 3/4) | 510(24) | 762(30) | 915(36) | 1005(40) | 1120(44) | 1270(50) | 1524(60) | 1524(60) |
No. of sheaves mm(in) | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 |
Dia. of wire line mm(in) | 24(15/16) | 24(15/16) | 26(1) | 29(1 1/8) | 29(1 1/8) | 32(1 1/4) | 35(1 3/8) | 38(1 1/2) | 42(1 5/8) |
