API 4F Crown Block for Drilling Rigs - 157,366 lbf Load Capacity with 24.02" Sheave Diameter
Price:
USD5000-40000/pc
MOQ:
1 set
Delivery Time:
15-30 days
Product Description
API 4F Certified Crown Block for Drilling Rigs
The crown block is a critical stationary component in drilling rig hoisting systems, featuring multiple sheaves that guide the drill line wire rope. Working in conjunction with the traveling block, this system enables lifting capacities reaching hundreds of thousands of pounds, with line tensions exceeding one million pounds on larger rig operations.
Key Features & Design Advantages
- Quenching-treated sheave grooves for superior abrasion resistance and extended service life
- Interchangeable pulleys and bearings compatible with matching traveling blocks
- Integrated wire rope guard prevents bouncing or dislodgement during operation
- Safety features include bumping wood and protective netting
- Convenient lifting frame for simplified pulley maintenance
- Ear board facilitates top drive guide installation
- Includes sand pulley and assistant pulley configurations
- Full compliance with API 4F and API 8C industry standards
Technical Specifications
| Model | Travelling System | Drilling Line Diameter (in) | Load (lbf) | Main Sheave Diameter (in) | Fastline Sheave Diameter (in) | Sandline Sheave Diameter (in) | Overall Dimension (ft) | Self-weight (lb) |
|---|---|---|---|---|---|---|---|---|
| TC60 | 3×2 | 7/8 | 134,885 | 19.68 | 19.68 | 5.37×4.36×4.89 | 1,305 | |
| TC70 | 4×3 | 7/8 | 157,366 | 24.02 | 24.02 | 4.86×2.05×2.07 | 1,598 | |
| TC90C | 4×3 | 1 | 202,328 | 24.02 | 24.02 | 4.46×3.28×4.1 | 1,764 | |
| TC135 | 4×3 | 1 | 303,492 | 29.92 | 36.02 | 6×4.95×4.27 | 2,866 | |
| TC158 | 5×4 | 1;1 1/8 | 355,198 | 29.92 | 36.02 | 19.68 | 7.64×4.69×4.82 | 3,263 |
| TC158 | 6×5 | 1;1 1/8 | 355,198 | 29.92 | 36.02 | 19.68 | 7.64×5.38×4.82 | 3,472 |
| *TC160 | 4×3 | 1 1/8 | 359,694 | 36.02 | 36.02 | 19.68 | 2.23×3.23×3.41 | 4,393 |
| *TC170C | 5×4 | 1 1/4 | 382,175 | 36.02 | 44.09 | 15.75 | 7.97×3.28×4.43 | 6,095 |
| *TC180D | 6×5 | 1 1/4 | 404,656 | 36.02 | 36.02 | 8.14×2.7×3.18 | 4,574 | |
| *TC225 | 6×5 | 1 1/4 | 505,820 | 44.09 | 50 | 8.14×2.7×3.18 | 12,306 | |
| TC225 | 6×5 | 1 1/4 | 505,820 | 36.02 | 36.02 | 19.68 | 6.56×4.59×4.43 | 5,158 |
| *TC315 | 7×6 | 1 3/8 | 708,148 | 50 | 60 | 30 | 12.84×10×9.24 | 19,294 |
| *TC450 | 7×6 | 1 1/2 | 1,116,640 | 60 | 60 | 29.92 | 11.38×10×9.8 | 21,459 |
*Note: Marked items are designed for skid-mounted drilling rig masts.
Product Documentation & Visual Reference
Contact Information
Dongying Machinery Equipment Co.
North Two Road, Dongying City, Shandong Province, China
Mobile/WhatsApp/WeChat: +86 13475294399
Email: christal@cn.com
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Company
Dongying Oilman Machinery Equipment Co.,Ltd.
Location
www.oilmanchina.com
Contact Person
Christal