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Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.

Hunan New Diamond Construction Machinery Co., Ltd.

Home ProductsBorewell Drilling Hammers

Professional Borewell Drilling Hammers Erosion Resistant With Low Problem Rate

Professional Borewell Drilling Hammers Erosion Resistant With Low Problem Rate

  • Professional Borewell Drilling Hammers Erosion Resistant With Low Problem Rate
Professional Borewell Drilling Hammers Erosion Resistant With Low Problem Rate
Product Details:
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: NM series Hammer
Payment & Shipping Terms:
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
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Detailed Product Description
Type: Hammer Processing Type: Forging
Use: Ore Mining Color: Required
Machine Type: Drilling Equipment Usege: Mining&Construction&Water Well Drilling
High Light:

downhole drilling tools

,

borewell hammer

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.

It also has the following advantages:

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of DTH hammer designed according to newest rock drilling theory.

 

2. Smooth performance and long service life of DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

 

3. Low problem rate and easy to maintenance due 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


Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole, mountain reinforcement, anchorage and other engineering holes, geothermal exploration hole, Well bore and other fields.

 

Specifications


NM Series High Air Pressure DTH Hammers Without Foot Valve

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.


The appearance of the picture is different from that of the actual product, and the actual product is the standard.

 

 

 

NM Series High Air Pressure DTH Hammers Without Foot Valve
Item Description Weight(kg)
NM4A NM5A NM6A NM8A
1, Top Sub 6.50 13.70 20.00 34.00
2, “O” Ring Of Top Sub 0.10 0.015 0.015 0.015
3, Breakout Ring - - - 0.30
4, Chenck Valve 0.35 0.70 0.70 1.20
5, Spring 0.05 0.10 0.10 0.10
6, Air Distributor 1.50 2.00 3.50 6.00
7, Internal Cylinder 2.10 2.80 4.20 6.50
8, Piston 8.50 15.00 23.00 42.50
9, External Cylinder 14.80 24.00 26.00 61.00
10, Guided Sleeve 1.80 2.60 4.80 5.30
11, “O” Ring Of Stop Ring 0.005 0.01 0.01 0.01
12, Stop Ring 0.30 0.70 0.80 1.50
13, Breakout Ring - - - 0.30
14, Drive Chuck 3.80 6.50 4.20 17.30
15, Drill Bit 6.60 13.50 23.00 31.00
 

Contact Details
Hunan New Diamond Construction Machinery Co., Ltd.

Contact Person: Rick.liao

Tel: +8618692219720

Send your inquiry directly to us
Hunan New Diamond Construction Machinery Co., Ltd.
PinJiang Industry Park,PingJiang county,YueYang City,Hunan,China.
Tel:86-731-89708248
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