Home > Products > DTH Hammers > drilling equipment/High air pressure drilling/QL40 DTH hammer for DTH drilling rig/high air compressor use/Rock drilling tools
drilling equipment/High air pressure drilling/QL40 DTH hammer for DTH drilling rig/high air compressor use/Rock drilling tools
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Product Details
| Place of Origin | Hunan, China | Brand Name | New diamond | |
| Model Number | QL40 with footvalve | Type | Drill Shank | |
| Machine Type | Drilling Tool | Certification | Other, ISO9001:2008 | |
| Material | Carbide | Processing Type | Forging | |
| Use | Ore Mining |
Product Description
Faster Drilling Speed and Most Advanced Air DTH Hammer:
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
It is a kind of valveless high air pressure DTH Hammer with foot valve.
It has the following advantages:
- Valveless air distribution. More reliable.
- Simple design of the piston, long life.
- More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
- Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.
NQL4 DTH Hammer Technical Data
Length (Less bit) | Weight (Less bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
1097mm | 41.00kg | Φ99mm | QL40 | Φ110-Φ135 | API2 3/8”Reg | ||
Working Pressure | Impact rate at 1.5Mpa | Recommended rotation speed | Air consumption | ||||
1.0Mpa | 1.8Mpa | 2.4Mpa | |||||
1.0-2.5Mpa | 27HZ | 25-40r/min | 6 m³/min | 10 m³/min | 15m³/min | ||
Item Description | Weight (kg) | Part Number |
1. Top Sub
2. “O” Ring of Top Sub
3. Check Valve
4. Spring
5. Compression Buffer
6. Air Distributor
7. Internal Cylinder
8. Piston
9. External Cylinder
10. Guided Sleeve
11. “o” Ring of Stop Ring
12. Stop Ring
13. Drive Chuck
14. Drill Bit | 6.50
0.01
0.42
0.04
0.04
2.20
2.30
8.80
16.50
0.80
0.01
0.30
3.00
9.5 | NQL401
NQL402
NQL403
NQL404
NQL405
NQL406
NQL407
NQL408
NQL409
NQL410
NQL411
NQL412
NQL413
NQL414 |
Contact Us
- Hunan New Diamond Construction Machinery Co., Ltd.
- Contact nameRick Liao Chat Now
- Phone0086-731-89708148
- AddressMeiguiyuan, Yuelu district, Changsha city, Hunan, China, Yueyang, Hunan
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