Model Number

Crown Block

FEATURES OF CROWN BLOCK

l        I3uilt to API Spec 4F & 8A and being authorized to use the official API monogram. In conformity with the requirements of industry standard SY/T5 527;

l        The sheave groove is quenching-treated. anti-abrasion with long service life;

l        Equipped with wireline ward device, preventing the wireline from bouncing or falling off;

l        Equipped with bumping wood and protective net;

l        Equipped with gin pole lot block servicing;

l        Equipped with sand block and auxiliary block;

The sheaves of crown block and mated traveling block are fully interchangeable.

Specifications of Crown Block

Model THN	TC30	TC50	TC90	TC135	TC170	TC225	TC315	TC450
Max. hook load kN(1 bs)	300 (66000)	500 (110000)	900 (200000)	1350 (300000)	1700 (37400)	2250 (500000)	3150 (700000)	4500 (500000)
Dir. Of wireline 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)
OD of sheave mm(in)	475 (18 3/4)	610(24)	660(26)	1005(40)	1005(40)	1120(44)	1270(50)	1524(60)
Qty. of sheaves	4	5	5	5	6	6	7	7
Dimension(L×W×H)mm	738×472×575	860×670×588	1208×1092×1207	2320×1436×1781	2668×2460×1855	2668×2709×2469	3112×2783×2800	3407×2722×2856