Crown Blocks

Main Technical Features

● Design &manufactured In accordance with API 4F, API 8C.

● The frame is made of high-strength steel shapes & plates. The lug for Top Drive handling is

provided.

● The grooves are quenched to extent the service life.

● The rope guards are mounted to prevent the ropes from grooves.

● Each bearing has individual lubricating channel.

● Equipped with wooden bumper blocks and retainer net.

● Equipped with sand line sheaves and auxiliary sheaves.

● The bearings and the sheaves are interchangeable with those of matching Travelling Block.

● Equipped with a gin pole for repairing the sheaves cluster as requirement.

Model	TC135	TC170	TC225	TC315	TC450	TC675
Max. hook load kN（lbs）	1350 (300000）	1700 (374000）	2250 (500000）	1350 (700000）	4500 (1000000）	6750 (1500000）
Dia. Of wireline mm（in)	29（1 1/8）	29（1 1/8）	32（1 1/4）	35（1 3/8）	38（1 1/2）	45（1 3/4）
OD of sheave mm（in）	1005（40）	1005（40）	1120（44）	1270（50）	1524（60）	1524（60）
Qty. of sheave	5	6	6	7	7	8