Crow Block conform to API 8A,8C
Product introduction:
The design and manufacture of the series of Crown Blocks conform to requirements of API8A,8C standard and industry standards SY/T5527 and API monogram is permitted to be used.
Technical Features:
·The sheaves grooves are quenched so as to improve surface hardness and extend the service life.
·The rope guard prevents the wire rope from running out of the sheave grooves.
·Equipped with safety chain crash-proof device
·Equipped with a gin pole for use in repairing the sheaves cluster
·Equipped with sand line sheaves and auxiliary sheaves in accordance with user requirements
·The sheaves and the bearings are interchangeable with those of matching travelling block
Technical Parameters:
| Model | TC90 | TC158 | TC170 | TC225 | TC315 | |
| Max. hook load kN(1bs) |
900 (200000) |
1580 (351111) |
1700 (37400) |
2250 (500000) |
3150 (700000) |
|
| Dia. of wire line mm(in) | 26(1) | 29(1 1/8) | 29(1 1/8) | 32(1 1/4) | 35(1 3/8) | |
| O.D. of sheaves mm(in) | 762(30) | 915(36) | 1005(40) | 1120(44) | 1270(50) | |
|
Number of sheaves |
5 | 6 | 6 | 6 | 7 | |
|
Overall dimension |
Length mm(in) |
2580 (101 9/16) |
2220 (87 7/16) |
2620 (103 5/32) |
2667 (105) |
3192 (125 11/16) |
| Width mm(in) |
2076 (81 3/4) |
2144 (84 7/16) |
2203 (86 3/4) |
2709 (107) |
2783 (110) |
|
| Height mm(in) |
1578 (62 1/8) |
1813 (71 3/8) |
1712 (67) |
2469 (97) |
2350 (92 1/2) |
|
| Weight ,kg(1bs) | 3000(6614) | 3603(7943) | 3825(8433) | 6500(14330) | 8500(18739) | |
| Model | TC450 | TC585 | TC675 | TC675H | TC900 | |
| Max. hook load kN(1bs) |
4500 (1000000) |
5850 (1300000) |
6750 (1500000) |
6750 (1500000) |
9000 (2000000) |
|
| Dia. of wire line mm(in) | 38(1 1/2) | 38(1 1/2) | 45(1 3/4) | 38(1 1/2) | 48(1 7/8) | |
| O.D. of sheaves mm(in) | 1524(60) | 1524(60) | 1524(60) | 1524(60) | 1829(72) | |
|
Number of sheaves |
7 | 7 | 8 | 8 | 8 | |
| Overall dimension | Length mm(in) |
3140 (134 1/4) |
3625 (142 3/4) |
4650 (183) |
5180 (203 15/16) |
4217 (166) |
| Width mm(in) |
2753 (108 3/8) |
2832 (111 1/2) |
3340 (131 1/2) |
3642 (143 3/8) |
3606 (142) |
|
| Height mm(in) |
2420 (95 3/8) |
2580 (101 5/8) |
2702 (106 3/8) |
2904 (114 3/8) |
3146 (123 7/8) |
|
| Weight, kg(1bs) | 11105(24483) | 11310(24934) | 13750(30314) | 19700(43431) | 19150(42219) | |
