Home > Products > DTH Hammers > DHD340/COP44 DTH Hammer/hammer used for mining drilling/Quarrying dth hammer
DHD340/COP44 DTH Hammer/hammer used for mining drilling/Quarrying dth hammer
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Product Details
| Place of Origin | Hunan, China | Brand Name | New diamond | |
| Model Number | DHD340/COP44 | Type | Drill Shank | |
| Machine Type | Drilling Tool | Certification | Other, ISO9001:2008 | |
| Material | Carbide | Processing Type | Forging | |
| Use | Ore Mining |
Product Description
DHD340/COP44 down the hole(dth) hammer :
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
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
ND45/DHD340/COP44 DTH Hammer Technical Data
Length (Less bit) | Weight (Less bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
1030mm | 39.00kg | Φ99mm | Cop44 DHD340 | Φ102-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. “o” Ring of Stop Ring
11. Stop Ring
12. Drive Chuck
13. Drill Bit | 6.50
0.01
0.42
0.04
0.04
2.20
2.30
9.00
15.00
0.01
0.20
3.50
9.00 | ND4501
ND4502
ND4503
ND4504
ND4505
ND4506
ND4507
ND4508
ND35A09
ND4510
ND4511
ND4512
ND4513 |
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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