🔩 Electric / Pneumatic DTH Drilling Machine
The Electric / Pneumatic DTH Drilling Machine is a high‑efficiency drilling solution designed for stone quarries, mining operations, and construction sites. Combining electric-powered rotary drive with a pneumatic down-the-hole (DTH) hammer, this machine offers fast penetration, precise drilling, and durable performance across a wide range of rock types including granite, marble, limestone, sandstone, basalt, and quartzite.
It is ideal for blast-hole drilling, pre-splitting, anchor holes, and guiding cuts for wire-saw machines, making it an essential tool for modern quarrying and mining operations.
✅ Key Features & Advantages
1. Hybrid Electric & Pneumatic Power
Electric rotary motor ensures stable rotation and controlled feed rate
Pneumatic DTH hammer delivers high-impact energy directly at the bit
Efficient energy transfer results in faster drilling and higher penetration efficiency
2. High Efficiency & Deep Drilling Capability
Suitable for drilling holes ranging from ~65–165 mm diameter
Depth capability up to 30–40 m depending on rod configuration
Maintains consistent drilling speed even in hard rock conditions
3. Multi-Directional Drilling
Supports vertical, horizontal, and inclined holes
Suitable for quarry benches, pre-splitting, anchor bolts, drainage holes, or wire-saw preparation
Flexible operation allows drilling in confined or irregular quarry spaces
4. Efficient Cuttings Removal & Cooling
Compressed-air flow flushes cuttings from the borehole
Reduces bit wear and maintains consistent drilling performance
Water-cooling options available for prolonged bit life and dust control
5. Durable & User-Friendly Design
Compact and lightweight for easier relocation and installation
Anti-vibration design improves operator comfort
Easy maintenance with accessible components
6. Cost-Efficient Operation
Reduces manual labor and drilling time
Increases hole-to-hole productivity
Extends tool and bit life, lowering operating costs
📐 Typical Specifications (adjust per your model)
| Parameter | Typical Values / Range |
|---|---|
| Drilling Method | Electric rotary + Pneumatic DTH hammer |
| Hole Diameter | 65–165 mm |
| Drilling Depth | Up to 30–40 m |
| Drilling Speed | 6–8 m/hour (depends on rock hardness) |
| Rotation & Feed | Electric motor rotation, pneumatic impact feed |
| Air Pressure (for DTH) | 0.5–0.7 MPa |
| Air Consumption | 7–14 m³/min (depends on bit size/rock hardness) |
| Drilling Directions | Vertical, horizontal, inclined/slant |
| Suitable Rock Types | Granite, marble, limestone, sandstone, basalt, quartzite |
🏗️ Applications
Quarry block extraction: Efficient drilling of large stone blocks
Blast-hole drilling: Pre-splitting and controlled blasting preparation
Anchor and bolt holes: Foundations, slope stabilization, and rock anchoring
Wire-saw cutting preparation: Guiding lines for precise block separation
Construction & civil engineering: Foundation drilling in hard rock areas
✔️ Why Choose Our Electric / Pneumatic DTH Drill Machine
High penetration efficiency for hard rock
Accurate, straight holes for blast-hole or anchor applications
Supports multiple drilling directions for versatile quarry operations
Efficient cuttings removal and cooling extend tool life
Compact, user-friendly design for easy installation and operation
Reduces operational cost with high durability and productivity
Packing, Storage, Handling and Transportation
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