DHD380
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DHD380 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.
DHD380 Structure
| Ref. | Parts | Weight | Part No. | Ref. | Parts | Weight | Part No. |
|---|---|---|---|---|---|---|---|
| 01 | Top Sub | 42 Kg | 01-DHD380-01 | 09 | Piston | 41.5 Kg | 01-DHD380-09 |
| 02 | Adjuster Shim | 0.2 Kg | 01-DHD380-02 | 10 | Piston Case | 62.5 Kg | 01-DHD380-10 |
| 03 | “O”Ring | 0.02 Kg | 01-DHD380-03 | 11 | Retainer Ring | 1.2 Kg | 01-DHD380-11 |
| 04 | Check Valve | 1.3 Kg | 01-DHD380-04 | 12 | “O”Ring | 0.02 Kg | 01-DHD380-12 |
| 05 | Spring | 0.09 Kg | 01-DHD380-05 | 13 | Adjuster Shim | 0.2 Kg | 01-DHD380-13 |
| 06 | Rubber Buffer | 0.4 Kg | 01-DHD380-06 | 14 | Drive Chuckk | 18.2 Kg | 01-DHD380-14 |
| 07 | Valve Seat | 13 Kg | 01-DHD380-07 | 15 | Drill Bit | 01-DHD380-15 | |
| 08 | Inner Cylinder | 91 Kg | 01-DHD380-08 |
Technical Parameter
| Length(Less bit) | Weight | Outer Diameter | Connection Thread | Bit Shank | Hole Range |
|---|---|---|---|---|---|
| 1492mm | 190Kg | φ180mm | API4 1/2″REG | DHD380 | φ195-φ254mm |
| Work Pressure | Recommended rotation speed | Air Consumption | |||
| 1.8Mpa | 2.4Mpa | ||||
| 1.5-3.3 Mpa | 30-60r/min | 26m³/min | 34m³/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