Hunan New Diamond Construction Machinery Co., Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | According to order quantity |
| Delivery Time | 5-8 work days |
| Packaging Details | Carton packaging and wooden box packing |
| Length(Without Bit) | 872mm-1880mm |
| Processing Type | Forging |
| Hole Range | Ø71mm-Ø275mm |
| Bit Shank | ND25 IR35 COP44/DHD340 COP44/DHD340 COP54/DHD350R COP54/DHD350R ND55C/DHD350Q COP64/DHD360 COP64/DHD360 COP84/DHD380 DHD1120 |
| Recommended Rotation Speed | 15-25r/min-25-35r/min |
| Working Pressure | 1.3-2.3Mpa 2.0-3.5Mpa |
| Brand Name | New Diamond |
| Model Number | ND series |
| Certification | ISO9001:2008 |
| Place of Origin | Hunan, China (Mainland) |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | According to order quantity |
| Delivery Time | 5-8 work days | Packaging Details | Carton packaging and wooden box packing |
| Length(Without Bit) | 872mm-1880mm | Processing Type | Forging |
| Hole Range | Ø71mm-Ø275mm | Bit Shank | ND25 IR35 COP44/DHD340 COP44/DHD340 COP54/DHD350R COP54/DHD350R ND55C/DHD350Q COP64/DHD360 COP64/DHD360 COP84/DHD380 DHD1120 |
| Recommended Rotation Speed | 15-25r/min-25-35r/min | Working Pressure | 1.3-2.3Mpa 2.0-3.5Mpa |
| Brand Name | New Diamond | Model Number | ND series |
| Certification | ISO9001:2008 | Place of Origin | Hunan, China (Mainland) |
| High Light | rock mining tools ，oil drilling tools | ||
3-11 Inch ND Series Down The Hole Hammer Hard Rock Drilling Tools
Description:
With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.
Advantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of ND series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service lifeof ND series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenancedue to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
Applications:
It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.
Specifications:
| ND Series High Air Pressure DTH Hammers Without Foot Valve Technical Data | ||||||
| Length(Without Bit) | ND25A | ND35A | ND45A | ND45S | ND55A | ND55S |
| 872mm | 888mm | 1011mm | 986mm | 1110mm | 1110mm | |
| Weight(Without Bit) | 16.00kg | 25.00kg | 43.20kg | 37.00kg | 69.00kg | 66.00kg |
| External Diameter | Ø71mm | Ø82mm | Ø99mm | Ø92mm | Ø126mm | Ø116mm |
| Bit Shank | ND25 | IR35 | COP44/DHD340 | COP44/DHD340 | COP54/DHD350R | COP54/DHD350R |
| Hole Range | Ø71-Ø90mm | Ø90-Ø115mm | Ø110-Ø135mm | Ø105-Ø120mm | Ø135-Ø155mm | Ø127-Ø145mm |
| Connection Thread | T42x10x1.5 | API2 3”/8REG | API2 3”/8REG | API2 3”/8REG | API2 3”/8REG API3 1”/2REG API2 7”/8REG 2 7”/8 IF | API2 3”/8REG API3 1”/2REG API2 7”/8REG |
| Working Pressure | 1.0-1.5Mpa | 1.0-1.5Mpa | 1.2-2.0Mpa | 1.2-2.0Mpa | 1.3-2.3Mpa | 1.3-2.3Mpa |
| Impact Rate at 14 Bar | 25HZ | 25HZ | 30HZ | 30HZ | 28HZ | 28HZ |
| Recommended Rotation Speed | 22-35r/min | 25-40r/min | 22-35r/min | 25-40r/min | 20-35r/min | 25-35r/min |
| Air Consumption | 1.0Mpa: 4.0m³/min 1.5Mpa: 6.0m³/min | 1.0Mpa: 3.8m³/min 1.5Mpa: 7.5m³/min | 1.0Mpa: 6.0m³/min 1.8Mpa: 10.0m³/min 2.4Mpa: 15.0m³/min | 1.8Mpa: 8.0m³/min 2.4Mpa: 13.0m³/min | 1.0Mpa: 7.0m³/min 1.8Mpa: 14.0m³/min 2.4Mpa: 19.0m³/min | 1.0Mpa: 7.0m³/min 1.8Mpa: 13.5m³/min 2.4Mpa: 18.0m³/min |
| ND Series High Air Pressure DTH Hammers Without Foot Valve Technical Data | |||||
| Length(Without Bit) | ND55C(A) | ND65A | ND75A | ND85A | ND1120A |
| 1102mm | 1238mm | 1258mm | 1359mm | 1880mm | |
| Weight(Without Bit) | 68.00kg | 98.00kg | 120.00kg | 175.00kg | 474.00kg |
| External Diameter | Ø126mm | Ø142/Ø146mm | Ø165mm | Ø180/Ø185mm | Ø275mm |
| Bit Shank | ND55C/DHD350Q | COP64/DHD360 | COP64/DHD360 | COP84/DHD380 | CDHD1120 |
| Hole Range | Ø135-Ø155mm | Ø155-Ø203mm | Ø175-Ø216mm | Ø195-Ø254mm | Ø305-Ø445mm |
| Connection Thread | API2 3”/8REG API3 1”/2REG API2 7”/8REG | API3 1”/2REG | API3 1”/2REG | API4 1”/2REG | API6 5”/8REG |
| Working Pressure | 1.3-2.3Mpa | 1.5-3.0Mpa | 1.5-3.0Mpa | 1.5-3.0Mpa | 2.0-3.5Mpa |
| Impact Rate at 17 Bar | 28HZ | 25HZ | 23HZ | 22HZ | 20HZ |
| Recommended Rotation Speed | 22-35r/min | 20-30r/min | 20-30r/min | 15-25r/min | 15-25r/min |
| Air Consumption | 1.0Mpa:8.0m³/min 1.8Mpa:6.0m³/min 2.4Mpa:19.0m³/min | 1.0Mpa:9.0m³/min 1.8Mpa:18.0m³/min 2.4Mpa:26.0m³/min | 1.0Mpa:11.0m³/min 1.8Mpa:20.0m³/min 2.4Mpa:28.0m³/min | 1.0Mpa:12.0m³/min 1.8Mpa:22.0m³/min 2.4Mpa:28.0m³/min | 1.0Mpa:28.0m³/min 1.8Mpa:50.0m³/min 2.4Mpa:71.0m³/min |
Advantages:
Our DTH hammer and bits has following advantages:
Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of DTH hammer designed according to newest rock drilling theory.
Smooth performance and long service life of DTH hammer due to high quality alloy steel materials and advanced
processing technology adapted.
Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of hammer.
Easy to depart bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.
Interchangeable with DTH bit and dill pipe manufactured by many brands all over the world.
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
1,000,000-40,000,000
Employee Number:
100~300
Ecer Certification：
Active Member
Hunan new diamond Construction Machinery Co., Ltd. is a professional engaged in the research and manufacture of drilling and pneumatic tools of modern high-tech enterprises。 The main research and manufacture of high air pressure DTH hammer, drill hole, drill pipe and drilling ... Hunan new diamond Construction Machinery Co., Ltd. is a professional engaged in the research and manufacture of drilling and pneumatic tools of modern high-tech enterprises。 The main research and manufacture of high air pressure DTH hammer, drill hole, drill pipe and drilling ...
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