About us:
We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Changsha, Hunan, China.
We have rich experience in this field of DTH hammers and bits for 20 years.
Owing to high quality, professional serivce and competitive price, we have gotton good reputation from our customers all over the world, such as France, Spain, Italy, South Africa, Australia, Iran, Malaysia, etc.
3" DTH hammer specifications:
Model: DHD3.5, COP32, QL30, Mission30, Mach303
| DHD3.5 |
| Length(less bit) | 930mm |
| Weight (less bit) | 25.0kg |
| External diameter | 82mm |
| Bits shank | DHD3.5 |
| Bits diameter | 90-110mm
3 1/2" - 4 5/16" |
| Connection thread | API 2 3/8" Reg |
| Air pressure | 1.0-1.5Mpa |
Other shank can be available:
3.5" hammer, shank: DHD3.5 / Bulroc BR3 / COP32 / QL30 / M30 /Mach303
4" hammer, IR DHD340A / SD4 / COP44 / QL40 / Bulroc BR4 / M40 / Mach44 shank
5" hammer, IR DHD350R / SD5 / COP54 / Bulroc BR5 / QL50 / M50 /Mach50 shank
6" hammer, IR DHD360 / SD6 / COP64 / Bulroc BR6 / QL60 / M60 shank
8" hammer, IR DHD380 / SD8 / COP84 /QL80 shank
10" hammer, SD10 / Numa100 shank
12" hammer, IR DHD1120 / SD12 / Numa120 / Numa125 shank
15" hammer, SD15 shank
We can also provide related products DTH button bits, ODEX, symmetric overburden systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc
Product photos
Quality warranty:
Our hammers are made of high quality steel and all spares are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally, Production time is 15 -25 days.
Transportation:
By air, By Express or By sea according to your requests.