| имя: | QL Hammer without foot valve |
|---|---|
| Model: | QL60 |
| Length without bit: | 1183mm |
| Weight without bit: | 90kg |
| Bit Shank: | QL60 |
| Hole Range: | Φ155-203mm |
| Connection Thread: | API 3 ½ “Reg |
| Working Pressure: | 15-25Bar |
| Impact Rate at 17Bar: | 25HZ |
| Recommended rotation speed: | 20-30r/min |
| Air consumption at 10Bar: | 9m³/min |
| Air consumption at 18Bar: | 18m³/min |
| Air consumption at 24Bar: | 26m³/min |
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 span, easy and cheap maintenance.
4.Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
