Crown Block
According to API and SY/T 5527-2001
Features
a. Conform to API 4F & 8A and marked with API monogram
b. Conform to industrial standard SY/T5527
c. The sheave groove is quenching-treated, anti-abrasion and long of service life.d. Equipped with wireline ward device, prevent the wireline bounce or fall off
e. Equipped with bumping wood and protective net f. Equipped with gin pole for block servicing
g. Equipped with sand block and auxiliary block
Main Technical Parameters:
| Model | TC-60 | TC-90 | TC-125 | TC-135 | TC-170 | TC-225 | TC-315 | TC-450 |
| max. hook load (kn) | 600 | 900 | 1250 | 1350 | 1700 | 2250 | 3150 | 4500 |
| hoisting line dia. (mm) | 22 | 26 | 29 | 29 | 32 | 32 | 35 | 38 |
| Qty. of sheave (pcs) | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 |
| OD of sheave (mm) | 576 | 576 | 680 | 915 | 1005 | 1120 | 1270 | 1524 |
| Length mm | 845 | 850 | 2210 | 2320 | 2450 | 2574 | 2715 | 3500 |
| Width mm | 675 | 710 | 2476 | 1436 | 2483 | 2505 | 1898 | 2000 |
Height mm | 585 | 610 | 1820 | 1781 | 1847 | 1925 | 1890 | 2240 |
| Weight (kg) | 510 | 650 | 2550 | 2775 | 4035 | 5600 | 5800 | 8200 |
Crown Block
