Design Features:
•The drilling line is reeved in parallel.
•The crown frame is made of high strength steel shapes & plates. The lug plate for top drive is provided. It is equipped with metal base plate, handrail. A ladder has an opening.
• The sheave cluster is tilted to counteract traveling block’s torque. The side plate assembly is faced with derrick man
for ease of picking off & suspending elevators.
• All sheaves have double-row conical roller bearings and each bearing has individual lubricating channel.
• Equipped with wooden bumper blocks and retainer net.
• Equipped with a frame crane for use in repairing the sheaves cluster.
• The sheaves and bearings are interchangeable with those of matching travelling block.
• The crown blocks conform to API Spec. 8A/4F and API monogram is permitted to be used.
Model | TC135 | TC170 | TC225 | TC315 | TC450 | TC585 | |
Max. hook load | kN | 1350 | 1700 | 2250 | 3150 | 4500 | 5850 |
O.D. of sheaves | mm (in) | 915(36) | 1005(40) | 1120(44) | 1270(50) | 524(60) | 1524(60) |
Number of sheaves | 5 | 6 | 6 | 7 | 7 | 8 | |
Dia. of wire line | mm (in) | 29 (11/8) | 29 (11/8) | 32 (11/4) | 35 (13/8) | 38 (11/2) | 42 (15/8) |