- Model NO.: Cop54, DHD350R
- Mining Object: Mining
- Origin: China
- Type: Drilling Machine
- Trademark: HJG
- HS Code: 84123100
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.
|Length(exclude bit)||Weight(exclude bit)||External Diameter||Bit Shank||Hole Range||Connection Thread|
|1110 mm||69.00 kg||Φ125 mm||Cop54 DHD350R||Φ135mm _ Φ155mm||
API 2 3/8'' Reg
API 3 1/2'' Reg
|Working Pressure||Impact rate at 0.5 MPa||Recommended Rotary Speed||Air Consumption|
|1.0 MPa||1.8 MPa||2.4 MPa|
|1.0 - 2.5 MPa||28 Hz||20-35 rpm||7 m³/min||14 m³/min||19 m³/min|