TC 450 Crown Blocks for oil & Gas Drilling Rigs & oilfield Workover
CROWN BLOCK
Series crown blocks conform to API Spec.4F and Spec.8A,and are granted the right to use API monogram.
Conform to industry standard SY/T5527.
Sheave grooves are heat hardened to provide good abrasion resistance and long service life.
Rope bar and rope barrier are provided to prevent the wire rope from crossing or tailing out of the sheave grooves.
Wooden buffer is provided.
Lifting frame for maintaining sheaves Assy is provided.
Sand sheaves and auxiliary sheaves Assy are provided.
Crown block sheaves are interchangeable with its matched traveling block sheaves.
Specification of the Drilling rig Crown Block
Model | TC-30 | TC-50 | TC-90 | TC-135 | TC-170 | TC-225 | TC-315 | TC-450 | |
Max. Load kN (1bs) | 300 (66000) | 500 (110000) | 900 (200000) | 1350 (300000) | 1700 (374000) | 2250 (500000) | 3150 (700000) | 4500 (1000000) | |
Drilling line size 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) | |
Sheaves O.D mm(in) | 475 (18-3/4) | 610 (24) | 660 (26) | 1016 (40) | 1016 (40) | 1120 (44) | 1270 (50) | 1524 (60) | |
Number of sheaves | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | |
Overall dimensions mm(in) | Length | 738 (29) | 860 (33-7/8) | 1208 (47-9/16) | 2320 (91-11/32) | 2668 (105) | 2667 (105) | 3112 (123) | 3407 (134) |
Width | 472 (18-5/8) | 670 (26-7/16) | 1092 (43) | 1436 (56-17/32) | 2460 (97) | 2709 (107) | 2783 (110) | 2722 (107) | |
Height | 575 (22-5/8)) | 588 (23-1/8) | 1207 (47-1/2) | 1781 (70-1/2) | 1855 (73) | 2469 (97) | 2800 (110) | 2856 (112) | |
Weight kg | 245 (540) | 464 (1023) | 1500 (3307) | 2775 (6118) | 4540 (9988) | 5270 (11594) | 7600 (16720) | 9750 (21450) | |
TC 450 Crown Blocks for oil & Gas Drilling Rigs & oilfield Workover
CROWN BLOCK
