Hunan New Diamond Construction Machinery Co., Ltd.
 |
| Place of Origin: | Hunan, China (Mainland) |
| Brand Name: | New Diamond |
| Certification: | ISO9001:2008 |
| Model Number: | NM |
| Minimum Order Quantity: | Negotiable |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Carton packaging and wooden box packing |
| Delivery Time: | 5-8 work days |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | According to order quantity |
| Length(Without Bit): | 1005-1338mm | Processing Type: | Forging |
|---|---|---|---|
| External Diameter: | Ø99-185mm | Working Pressure: | 1.2-2.0Mpa-1.5-3.0Mpa |
| Air Consumption: | 1.0Mpa:5.0m³/min-2.4Mpa:28.0m³/min | Recommended Rotation Speed: | 25-40r/min-20-35r/min-20-30r/min-15-25r/min |
| High Light: | rock mining tools,oil drilling tools |
||
Description
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of NM series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service lifeof NM 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
| Technical Data | ||||
|
Length(Without Bit) |
NM4A | NM5A | NM6A | NM8A |
| 1005mm | 1110mm | 1161mm | 1338mm | |
|
Weight(Without Bit) |
40.00kg | 68.50kg | 90.00kg | 176.00kg |
|
External Diameter |
Ø99mm | Ø126mm |
Ø142mm Ø144mm Ø146mm Ø148mm |
Ø180/Ø185mm |
|
Bit Shank |
NM4 | NM5 | NM6 | NM8 |
|
Hole Range |
Ø110-Ø135mm | Ø155-Ø190mm | Ø155-Ø203mm | Ø195-Ø254mm |
|
Connection Thread |
API2 3”/8REG |
API2 3”/8REG API3 1”/2REG API2 7”/8REG |
API3 1”/2REG API2 7”/8REG 2 7”/8 IF |
API4 1”/2REG |
|
Working Pressure |
1.2-2.0Mpa | 1.3-2.3Mpa | 1.5-2.5Mpa | 1.5-3.0Mpa |
|
Impact Rate at 17 Bar |
30HZ | 28HZ | 25HZ | 22HZ |
|
Recommended Rotation Speed |
25-40r/min | 20-35r/min | 20-30r/min | 15-25r/min |
|
Air Consumption |
1.0Mpa:5.0m³/min 1.8Mpa:9.0m³/min 2.4Mpa:14.0m³/min |
1.0Mpa:7.0m³/min 1.8Mpa:14.0m³/min 2.4Mpa:19.0m³/min |
1.0Mpa:9.0m³/min 1.8Mpa:18.0m³/min 2.4Mpa:26.0m³/min |
1.0Mpa:12.0m³/min 1.8Mpa:22.0m³/min 2.4Mpa:28.0m³/min |
Feature Advantage
1. Price commitment: in order to ensure the high reliability of products, raw material selection are using grapefruit brand products; under the same competitive conditions, and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.
2. Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.
3. Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.
Contact Person: Rick.liao
Tel: +8618692219720
