1. Product description
The dth drill hammer is a component of the down-hole drill and a working device of the down-hole drill. The dth drill hammer is divided into low air pressure down-hole hammer, medium air pressure down-hole hammer and high air pressure down-hole hammer.
2.Down-hole hammer application
Widely used in metallurgy, coal, chemical industry, building materials not busy mining and water conservancy, hydro-power, highway, railway, national defense, construction and other projects hole operations, suitable for dry, wind and water mixing and water gushing gun hole wet operations, reliable performance, is the ideal drill hole equipment.
3.The application cases of dth hammer :
we have served a number of large mining projects including blast holes, anchoring geothermal bore holes, quarring, well drilling and accumulated a wealth of practical experience.And Our DTH hammer can be used in different types of drilling machine
4. DTH hammer parameters
| DTH hammer type | a | b | c | d |
| Length(less bit) mm | 930mm | 1030 | 1084 | 1097 |
| Weight(less bit) kg | 25kg | 39 | 40.5 | 41 |
| External diameter mm | Φ82mm | Φ99 | Φ99 | Φ99 |
| Bit shank | DHD3.5 | COP44 DHD340 | SD4 | QL40 |
| Hole range(mm) | Φ90-110 | Φ110-135 | Φ110-135 | Φ110-135 |
| Connection thread | API 2 3/8” Reg. | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg |
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| Working pressure | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa |
| Impact rate at 1.5-1.7Mpa | 28Hz | 27Hz | 27Hz | 27Hz |
| Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 25-40r/min |
| Air consumption | 1.0Mpa | 4.5m3/min | 6.0m3/min | 6.0m3/min | 6.0m3/min |
| 1.8Mpa | 9.0m3/min | 10.0m3/min | 10.0m3/min | 10.0m3/min |
| 2.4Mpa | | 15.0m3/min | 15.0m3/min | 15.0m3/min |
5. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
6. After Sale Services
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
7.Package and shipping
Packing : DTH DHD hammer will pack in cardboard and plywood case.
Shipping : DTH DHD hammer will ship by sea , by air , by Express , etc .
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High Air Pressure 7 Inch DTH Drilling Hammer For Rock Drilling Rig Tool Images
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