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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 ProductsDown The Hole Hammer

Quarries / Rock Chisel Down The Hole Hammer Without Foot Valve , Erosion Resistant

Quarries / Rock Chisel Down The Hole Hammer Without Foot Valve , Erosion Resistant

  • Quarries / Rock Chisel Down The Hole Hammer Without Foot Valve , Erosion Resistant
Quarries / Rock Chisel Down The Hole Hammer Without Foot Valve , Erosion Resistant
Product Details:
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: NQL series
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: Hammers Processing Type: Forging
Use: Ore Mining Color: Required
Machine Type: Drilling Equipment Usege: Mining&Construction&Water Well Drilling
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dth hammer

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rock mining tools

NQL series Borewell Drilling Hammers without foot valve for Rock chisel

 

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.

 

A, using the raw material of super coarse grain hard alloy, the alloy has been sintered under pressure to improve the hardness and toughness of the bit.


B, unique design, improve drilling speed, use significantly improve life.


C, select advanced steel to ensure that the overall performance of the bit is consistent.


D, after sale guarantee, to replace the bad goods package.

 

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


NQL Series High Air Pressure DTH Hammers Without Foot Valve

Technical Data

Length(Without Bit) NQL4A NQL5A NQL6A NQL8A NQL95A
1070mm 1090mm 1183mm 1330mm 1340mm
Weight(Without Bit) 40.00kg 67.00kg 90.00kg 171.00kg 203.00kg
External Diameter Ø99mm Ø126 mm Ø165mm Ø180/Ø185mm Ø203mm
Bit Shank QL40 QL50 QL600 QL80 QL80
Hole Range Ø110-Ø135mm Ø155-Ø203mm Ø155-Ø203mm Ø195-Ø254mm Ø216-Ø254mm
Connection Thread API2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG API4 1”/2REG API4 1”/2REG
Working Pressure 1.2-2.0Mpa 1.3-2.3Mpa 1.5-2.5Mpa 1.5-3.0Mpa 1.8-3.0Mpa
Impact Rate at 17 Bar 30HZ 28HZ 25HZ 22HZ 22HZ
Recommended Rotation Speed 20-30r/min 20-35r/min 20-30r/min 15-25r/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

1.0Mpa:16.0m³/min

1.8Mpa:28.0m³/min

2.4Mpa:39.0m³/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.

 

 

 
 
NQL Series High Air Pressure DTH Hammers Without Foot Valve
Item Description Weight(kg)
NQL4A NQL5A NQL6A NQL8A NQL95A
Top Sub 6.50 13.70 20.00 34.00 35.00
“O” Ring Of Top Sub 0.01 0.015 0.015 0.015 0.01
Breakout Ring - - - 0.30 0.04
Chenck Valve 0.35 0.70 0.70 1.20 1.20
Spring 0.05 0.10 0.10 0.10 0.10
Air Distributor 1.50 2.00 3.50 6.00 7.00
Internal Cylinder 2.10 2.70 4.20 6.50 7.50
Piston 8.50 15.00 23.00 42.50 48.00
External Cylinder 15.20 24.00 30.00 59.00 75.00
Guided Sleeve 1.80 3.00 4.00 6.30 12.00
“O” Ring Of Stop Ring 0.005 0.01 0.01 0.01 0.01
Stop Ring 0.20 0.40 0.60 1.40 1.70
Breakout Ring - - - 0.30 0.40
Drive Chuck 3.20 4.50 5.50 13.00 15.00
Drill Bit 9.00 16.00 25.00 35.00 50.00

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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