High-Performance 8-inch (203mm) DTH (Down-The-Hole) Hammer

High-Performance 8-inch (203mm) DTH (Down-The-Hole) Hammer
Precision Drilling, Unmatched Reliability – Engineered for Medium-Diameter Applications

Core Technology
The 8-inch DTH Hammer delivers superior drilling efficiency in medium-diameter operations. Powered by compressed air, its internal piston generates high-frequency impacts transmitted directly to the rock via the drill bit. This technology minimizes energy loss, ensures straighter holes, and achieves 30–50% faster penetration in medium-to-hard rock formations compared to conventional methods.

Key Features & Advantages
1. Peak Drilling Performance
– Optimized air distribution system and piston geometry maximize impact energy (up to [ ] J) and frequency (≈[ ] BPM).
– Ideal for granite, basalt, limestone, and abrasive formations.

2. Exceptional Hole Accuracy
– Bottom-hole operation reduces deviation, critical for precision blasting holes, foundation piling, and anchor drilling.

3. Broad Compatibility
– Hole Diameter: 8–10 inches (203–254 mm).
– Rock Types: Medium-hard to extremely hard/abrasive strata.
– Applications: Quarrying, mining (blast holes), civil engineering (piles, micropiles), geothermal wells, and water boreholes.

4. Optimized Air Efficiency
– Operates at 18–25 bar (260–360 psi) with low air consumption (∼[ ] CFM @ [ ] bar).
– Stable performance across variable pressure conditions.

5. Robust Engineering
– Forged alloy steel piston/cylinder with heat treatment extends service life by 40%+ in abrasive environments.
– Tool-free disassembly for rapid maintenance (piston/seal replacement in <15 mins).

6. Advanced Sealing System
– Triple-layer polyurethane seals prevent grit ingress and air leakage, even in high-silt conditions.

7. Universal Connectivity
– Standard thread options (R32/T38/T45/ST58) compatible with leading 8-inch DTH bits and drill rigs (Atlas Copco, Sandvik, etc.).

Industry Applications
– Mining & Quarrying: Blast hole drilling (15–30m depth).
– Construction: Foundation piles, diaphragm walls, rock anchoring.
– Geotechnical: Coreless exploration, slope stabilization.
– Energy: Geothermal U-loops, water well drilling.

Why Choose Our 8-inch DTH Hammer?
– ↑ 25% Productivity: Faster penetration reduces drilling cycle time.
– ↓ 15% Operational Costs: Extended service intervals + low part wear.
– Precision Guaranteed: <1° deviation in 20m depth (ISO 9001-certified).
– Global Support: 24/7 technical assistance + 12-month warranty.

Operational Guidance
– Use oil-free, dew-point-controlled air (<5 ppm moisture).
– Match bit shank/thread type (e.g., COP54 bits for T45 threads).
– Replace seals every 150–200 operating hours.