300HPCR-22 Core Drilling Rig
2250m NQ drilling depth, 220kW Weichai powerful engine, German Rexroth dual-speed hydraulic motor, for solid mineral exploration
Product Overview
The CR-22 core drilling rig is a high-end geological exploration core drilling rig. Equipped with a Weichai WP7.300 National III emission diesel engine, 220kW (300HP), and German Rexroth dual-speed hydraulic motor, suitable for diamond and hard alloy drilling of solid mineral deposits and engineering geological exploration.
Core Advantages
High Power
220kW Weichai engine, sufficient power, meeting deep hole drilling requirements
Ultra-Deep Drilling
2250m NQ drilling capacity, preferred for deep solid mineral exploration
3-Speed Infinite Variable
0-1250 RPM infinite speed adjustment, adapting to different formation process requirements
Reliable Hydraulic System
German Rexroth dual-speed hydraulic motor, stable and reliable operation
Technical Specifications
| Parameter | Specification |
|---|---|
| Diesel Engine | Weichai WP7.300 National III |
| Power | 220 kW (300 HP) |
| Displacement | 7.4 L |
| BQ Depth | 2850 m |
| NQ Depth | 2250 m |
| HQ Depth | 1850 m |
| PQ Depth | 1350 m |
| Max Torque | 6550 N·m |
| Speed Range | 0-1250 RPM |
| Through Bore | 121 mm |
Application Areas
Applicable Project Types
Solid Mineral Diamond Drilling
Diamond bit with hydraulic drilling, efficiently obtaining deep core samples
Hard Alloy Drilling
Hard alloy drilling, stable and high core recovery rate
Engineering Geology
Highway, railway, dam and other engineering geological surveys
Shallow Oil & Gas
Shallow oil and gas resource exploration drilling
Groundwater Exploration
Deep groundwater exploration and monitoring
Tunnel Ventilation & Drainage
Mine tunnel engineering drilling support
Applicable Geological Conditions
- Hard rock layers (optimal)
- Fractured rock mass
- Fractured zones
- Deep ore body drilling
Working Principles
Rexroth Dual-Speed Hydraulic Rotation
Variable pump + German Rexroth dual-speed hydraulic motor drive, 3-speed infinite variable, smooth and reliable torque output, meeting different drilling process requirements.
Cylinder-Chain Multiplying Feed
Top drive feed uses cylinder-chain multiplying feed mechanism, smooth and reliable movement, with top drive lateral shifting mechanism for easy drill pipe handling, high drilling efficiency.
