DHD350
Home / DTH Hammers / ND Series
DHD350 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.
DHD350 Structure
| Ref. | Parts | Weight | Part No. | Ref. | Parts | Weight | Part No. |
|---|---|---|---|---|---|---|---|
| 01 | Top Sub | 14.7 Kg | 01-DHD350-01 | 09 | Inner Cylinde | 4.9 Kg | 01-DHD350-09 |
| 02 | “O”Ring | 0.02 Kg | 01-DHD350-02 | 10 | Piston | 15.5 Kg | 01-DHD350-10 |
| 03 | Check Valve | 1 Kg | 01-DHD350-03 | 11 | Piston Case | 30.3 Kg | 01-DHD350-11 |
| 04 | Spring | 0.06 Kg | 01-DHD350-04 | 12 | Retainer Ring | 0.3 Kg | 01-DHD350-12 |
| 05 | Adjuster Ring | 0.1 Kg | 01-DHD350-05 | 13 | “0”Ring | 0.01 Kg | 01-DHD350-13 |
| 06 | Rubber Buffer | 0.06 Kg | 01-DHD350-06 | 14 | Drive Chuckk | 71 Kg | 01-DHD350-14 |
| 07 | Ring Lock | 0.2 Kg | 01-DHD350-07 | 15 | Drill Bit | 01-DHD350-15 | |
| 08 | Valve Seat | 4.2 Kg | 01-DHD350-08 |
Technical Parameter
| Length(Less bit) | Weight | Outer Diameter | Connection Thread | Bit Shank | Hole Range |
|---|---|---|---|---|---|
| 1209mm | 78.5Kg | φ125mm | API2 3/8″REG | DHD350 | φ135-φ155mm |
| Work Pressure | Recommended rotation speed | Air Consumption | |||
| 1.0Mpa | 1.8Mpa | ||||
| 1.0-2.5 Mpa | 30-60 r/min | 9m³/min | 15m³/min | ||
Contact us
Request A Quote
Welcome to contact us at any time to get the latest product information and quotations.
Email address
info@rockdrillmaster.com
sales@rockdrillmaster.com
Phone numbers
Mobile : +86 188 2419 8826
Our location
Pingjiang Industrial Park, Yueyang,
Hunan Province, China