surface drilling/Rock drilling tools/8" High Speed Air Pressure DTH Hammer with Foot Valve for popular sale
USD $500 - $2,000 /Set
Min.Order:1 Set
Hunan New Diamond Construction Machinery Co., Ltd.
8" High Speed Air Pressure DTH Hammer with Foot Valve for popular sale
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.
It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
Style | Length | Weight | External | Bit Shank | Hole Range | Connection |
ND85A | 1359mm | 175.00Kg | Φ180mm | Cop84/ | Φ195-Φ254 | API 3 "Reg |
NSD8A | 1330mm | 174.00Kg | Φ180mm | SD8 | Φ195-Φ254 | API 4 "Reg |
NQL8A | 1330mm | 171.00Kg | Φ180mm | QL80 | Φ195-Φ254 | API 4 "Reg |
NM8A | 1338mm | 176.00Kg | Φ180mm | Mission80 | Φ195-Φ254 | API 4 "Reg |