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4 Inch Down the Hole Drill Hammer/dth Hammer Mission 40A/water Well Drilling Hammer
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Product Details
| Place of Origin | Hunan, China | Brand Name | New Diamond | |
| Model Number | Mission40/NM4A | Type | Drill Shank | |
| Machine Type | Drilling Tool | Certification | Other, ISO9001 | |
| 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 has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
NM4A DTH Hammer Technical Data
Length (Less bit) | Weight (Less bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
1005mm | 40.00kg | Φ99mm | NM4 | Φ110-Φ135 | API2 3/8”Reg | ||
Working Pressure | Impact rate at 1.7Mpa | Recommended rotation speed | Air consumption | ||||
1.0Mpa | 1.8Mpa | 2.4Mpa | |||||
1.0-2.5Mpa | 30HZ | 25-40r/min | 5m³/min | 9m³/min | 14m³/min | ||
1. Top Sub
2. “O” Ring of Top Sub
3. Check Valve
4. Spring
5. Air Distributor
6. Internal Cylinder
7. Piston
8. External Cylinder
9. Guided Sleeve
10. “o” Ring of Stop Ring
11. Stop Ring
12. Drive Chuck
13. Drill Bit | 6.50
0.01
0.35
0.05
1.50
2.10
8.50
14.80
1.80
0.005
0.30
3.80
6.60 | NM4A01
NM4A02
NM4A03
NM4A04
NM4A05
NM4A06
NM4A07
NM4A08
NM4A09
NM4A10
NM4A11
NM4A12
NM4A13 |
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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