Audited Supplier
Qideli DHD340 HD45A COP44 DTH Hammer high-speed for Rock Drilling
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Product Detail
Type: High Air Pressure DTH Hammer Without Foot HD45A,DHD340A,COP44
Customized: Customized
Length(Less Bit): 1011mm
Material: High Carbon Steel
Usage: Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling, Coal, Ore, Water Well, Pneumatic
DOWN THE HOLE DTH HAMMER SPECIFICATION:
| Hammer Model | External Diameter | Bit Shank | Connection thread | Impact rate 1.7Mpa | Air consumption (m3/min) | |||
| 1.0MPA | 1.5MPA | 1.8MPA | 2.4MPA | |||||
| QD35A | Φ82 | DHD3.5 | API 23/8" Reg | 28Hz | 4.5 | 9.0 | - | - |
| QD45A | Φ99 | COP44, DHD340 | API 23/8" Reg | 27Hz | 6 | - | 10 | 15 |
| QD55A | Φ125 | COP54,DHD350 | API 23/8" Reg API 31/2" Reg | 28Hz | 7 | - | 14 | 19 |
| QD65A | Φ142 | COP64,DHD360 | API 31/2" Reg | 25Hz | 9 | - | 18 | 26 |
| QD85A | Φ180 | COP84,DHD380 | API 41/2" Reg | 22Hz | 12 | - | 22 | 28 |
Why Choose US:
1. Adopt advanced heat treatment technology, product quality is stable, suitable for all kinds of rock.
2. After many tests, the product life is at the top level in China.
3. The product has excellent stability, and the adverse after-sale feedback of the product is less than 0.5%.
4. The suitable bit head design enables our bit to drill more efficiently and wear better.
5. Increase processing of the back of bit's head can better protect the DTH Hammer, thus , thus reducing the grinding of the front joint of the impactor and prolonging the life of the DTH Hammer.
6. Adopt round guage button and parabolic front button design, increase drilling efficiency, and at the same time can make the guage button more hard to break, better stability.
FAQ
The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After 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
Company information 
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