The crown block is an essential component in drilling rigs, designed to handle heavy loads and ensure safe, efficient operations. Our crown blocks are built to meet API 4F standards and comply with SY/T5527 industry requirements. They feature wire rope guards to prevent the wire rope from jumping or falling off the pulley, maintenance hoists for ease of repair, and sand line pulleys and auxiliary pulleys for additional functionality. The pulleys are interchangeable with their corresponding traveling blocks, enhancing operational flexibility.
Key Features:
- Compliance with Standards: Conforms to API 4F and SY/T5527 industry standards.
- Wire Rope Guard: Prevents wire rope from jumping or falling off the pulley.
- Maintenance Hoists: Equipped with hoists for pulley maintenance.
- Additional Pulleys: Includes sand line pulleys and auxiliary pulleys.
- Interchangeable Pulleys: Pulleys can be interchanged with corresponding traveling blocks for flexible operations.
Specifications Table
| Model | TC135 | TC170 | TC225 | TC315 | TC450 | TC585 |
|---|---|---|---|---|---|---|
| Max. Hook Load | 1350 kN / 150 US ton | 1700 kN / 200 US ton | 2250 kN / 250 US ton | 3150 kN / 350 US ton | 4500 kN / 500 US ton | 5850 kN / 650 US ton |
| Pulley Diameter | 915 mm / 36 in | 1005 mm / 40 in | 1120 mm / 44 in | 1270 mm / 50 in | 1524 mm / 60 in | 1524 mm / 60 in |
| Number of Pulleys | 5 | 6 | 6 | 7 | 7 | 8 |
| Wire Rope Diameter | 26 mm / 1 in | 29 mm / 1 1/8 in | 32 mm / 1 1/4 in | 35 mm / 1 3/8 in | 38 mm / 1 1/2 in | 42 mm / 1 5/8 in |
| Dimensions | 2500×2050×1920 mm | 2687×2150×2046 mm | 3200×3347×3640 mm | 3295×2776×2514 mm | 3068×2906×3576 mm | 3070×3000×3600 mm |
| 98×80×75 in | 106×84×80 in | 126×132×143 in | 130×109×99 in | 121×114×141 in | 121×118×142 in | |
| Weight | 2400 kg / 5290 lb | 2920 kg / 6440 lb | 5310 kg / 11710 lb | 7400 kg / 16310 lb | 9500 kg / 20940 lb | 10000 kg / 22046 lb |
Applications and Role
The crown block plays a critical role in drilling operations, ensuring the safe handling of heavy loads. It is designed to meet industry standards for reliability and safety, with features that enhance operational efficiency and maintenance. The wire rope guard, maintenance hoists, and interchangeable pulleys provide added flexibility and ease of use.
