DTH Drilling Hammer DHD340/QL40/Mission40 Without Foot Valve for Mining Machinery

Characteristics of High Air Pressure DTH Hammers Without Foot Valve:

This advanced high air pressure DTH hammer is designed without a foot valve, representing our latest innovation in drilling technology. It is one of the most advanced DTH hammers available globally, offering improved performance and reliability.

Technical Specifications:

| Length (without bit): | 1032 mm |
| Weight (without bit): | 43 kg |
| External Diameter: | φ99 mm |
| Bit Shank: | DHD340/QL40 |
| Hole Range: | φ110-φ135 mm |
| Connection Thread: | API 2 3/8" Reg / API 3 1/2" Reg |

Performance Parameters:

| Working Pressure: | 1.0-2.2 Mpa |
| Impact Rate (at 1.5 Mpa): | 28 HZ |
| Recommended Rotation Speed: | 30-60 r/min |
| Air Consumption: |

• At 1.0 Mpa: 5.5 m³/min
• At 1.8 Mpa: 10 m³/min
• At 2.2 Mpa: 16 m³/min

Advantages of the Foot-Valve-Free Design:

Enhanced Durability:

• Eliminates issues associated with foot valve fractures and expansion/contraction, increasing reliability.

Increased Drilling Efficiency:

• Higher impact frequency and reduced energy consumption.
• Drilling speed is 15%-30% faster compared to hammers with foot valves.

Simplified Structure:

• Reliable components with fewer failure points.
• Long operational life, easy maintenance, and lower costs.

Optimized Air and Oil Usage:

• Reduced air and oil consumption for better efficiency.
• Oil consumption is approximately 10% lower than models with foot valves.

Applications:

This DTH hammer is ideal for:

• Mining operations
• Quarrying
• Construction drilling projects
• Geological exploration

For demanding drilling environments, the foot-valve-free DTH hammer delivers exceptional performance and reliability, ensuring faster and more cost-effective operations.