DHD340
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DHD340 With Foot Valve DTH Hammer
This Series high air pressure DTH hammers working with foot-valve.
- Valveless air distribution enhances reliability.
- The piston's simple design ensures a longer lifespan.
- Achieve faster drilling with more efficient energy transfer, reduced air and oil consumption.
- With fewer internal parts and a simple, heat-treated structure, our design promises durability, minimal failures, and easy maintenance.
- Disassembly is straightforward, thanks to the multi-step threaded connections between the top sub, drive chuck, and external cylinder.
DHD340 Structure
| Ref. | Parts | Weight | Part No. | Ref. | Parts | Weight | Part No. |
|---|---|---|---|---|---|---|---|
| 01 | Top Sub | 8.8 Kg | 01-DHD340-01 | 08 | Piston | 9 Kg | 01-DHD340-08 |
| 02 | “O”Ring | 0.01 Kg | 01-DHD340-02 | 09 | Piston Case | 15.9 Kg | 01-DHD340-09 |
| 03 | Check Valve | 0,46 Kg | 01-DHD340-03 | 10 | Retainer Ring | 0.2 Kg | 01-DHD340-10 |
| 04 | Spring | 0.04 Kg | 01-DHD340-04 | 11 | “O”Ring | 0.01 Kg | 01-DHD340-11 |
| 05 | Rubber Buffer | 0.2 Kg | 01-DHD340-05 | 12 | Drive Chuckk | 3.7 Kg | 01-DHD340-12 |
| 06 | Valve Seat | 2.1 Kg | 01-DHD340-06 | 13 | Drill Bit | 01-DHD340-13 | |
| 07 | Inner Cylinder | 2.45 Kg | 01-DHD340-07 |
Technical Parameter
| Length(Less bit) | Weight | Outer Diameter | Connection Thread | Bit Shank | Hole Range |
|---|---|---|---|---|---|
| 1032mm | 43Kg | φ99mm | API2 3/8″REG | DHD340 | φ110-φ135mm |
| Work Pressure | Recommended rotation speed | Air Consumption | |||
| 1.0Mpa | 1.8Mpa | ||||
| 1.0-2.2 Mpa | 30-60r/min | 5.5m³/min | 10m³/min | ||
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Email address
info@rockdrillmaster.com
sales@rockdrillmaster.com
Phone numbers
Mobile : +86 188 2419 8826
Our location
Pingjiang Industrial Park, Yueyang,
Hunan Province, China