Heavy-Duty Drawworks System
The drawworks system is designed for hoisting and lowering drill strings and casing in drilling rigs. It features a main brake, auxiliary brake, separate AC VF drive device and computer auto control system.
Technical Specifications
Overview
Heavy-Duty Drawworks for Global Drilling Operations
This comprehensive series of drawworks is designed to meet the rigorous demands of modern oilfield operations, offering power ratings from 350HP to 4000HP. Engineered for versatility, these systems support load capacities ranging from 90 to 900 metric tons, making them suitable for a wide variety of rig configurations. With advanced drive options including AC VFD and DC SCR, these drawworks ensure reliable hoisting and precise control for optimized drilling performance.
Performance Range
Power Capacity Range
350 HP
Minimum Power
4,000 HP
Maximum Power
- Load Capacity Range
- 90 to 900 metric tons
Drive & Control
Control & Automation
- Computer auto control system
- Auto bit feeding function
- Real-time monitoring and analysis
- Tripping and drilling condition control
- Optimized drilling operation software
- Available Drive Modes
- AC VF DriveDC SCR DriveMechanical DriveDirect AC Motor Drive
Braking Systems
Main Brake Options
Band BrakeHydraulic Disc Brake
- Auxiliary Brake
- Eddy current brake
Technical Specifications
Drawworks Model Specifications
| Model | Nominal Depth (m) | Max Input Power (kW) | Shift Gears | Weight (kg) |
|---|---|---|---|---|
| JC15CZ | 1,500 | 335 | 5+1R | 9,500 |
| JC30D | 3,000 | 800 | 4+4R | 33,760 |
| JC40DB | 4,000 | 1,000 | 1+1R | 22,380 |
| JC50L | 5,000 | 1,100 | 4+2R | 37,000 |
| JC70D | 7,000 | 1,600 | 4+4R | 60,500 |
| JC90DB | 9,000 | 4,000 | 1+1R | 72,000 |
Mechanical Design
Gear Configuration
- One step parallel gear
- Planetary gear
- Single shaft driven
- Design Advantages
- Small SizeLight WeightLow MaintenanceHigh Reliability
