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Crown block


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, and toeboard. A ladder has an opening.
- A deviation fast-line sheave.
- 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.
- The sheave grooves are intermediate frequency quenched so as to provide surface hardness and extend service life of sheaves.
- All sheaves have double-row conical roller bearings and each bearing has individual lubricating channel.
- The rope guard prevents the wire rope from running out of the sheave grooves.
- Equipped with wooden bumper blocks and retainer net.
- Equipped with a frame crane for use in repairing the sheaves cluster.
- Equipped with sand line sheaves and auxiliary sheaves.
- 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.

Specifications:

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)
Overall dimension (L×W×H) mm 2500×2050×1920 2687×2150×2046 3200×3347×3640 3295×2776×2514 3068×2906×3576 3070×3000×3600
Weight kg 2400 2920 5310 7400 9500 10000


For detailed info on the product or service, including its price and delivery terms, drop us a line in English or Russian at equipment@neftegaskadry.com or call at 007-495-542-0468 (English, Russian).



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