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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

Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series

Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series

  • Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series
Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series
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
High Light:

downhole drilling tools

,

dth drilling tools

Description


Down the hole rock tools (drilling tools) are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powderto a down-the-hole bit to crush rocks.

1. Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and continuous sampling.

 

2. The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.
 

3. The collection tube adopts an integrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.
 

4. Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer
can drill holes of different sizes ensuring that the sample is not contaminated.

 

5. In difficult conditions such as loose soil, hard rock and plenty of water exists, sampling can be done well.

 

Applications


     It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.

 

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.

 

 
 
NQL Series High Air Pressure DTH Hammers Without Foot Valve
Item Description Weight(kg)
NQL4A NQL5A NQL6A NQL8A NQL95A
1, Top Sub 6.50 13.70 20.00 34.00 35.00
2, “O” Ring Of Top Sub 0.01 0.015 0.015 0.015 0.01
3, Breakout Ring - - - 0.30 0.04
4, Chenck Valve 0.35 0.70 0.70 1.20 1.20
5, Spring 0.05 0.10 0.10 0.10 0.10
6, Air Distributor 1.50 2.00 3.50 6.00 7.00
7, Internal Cylinder 2.10 2.70 4.20 6.50 7.50
8, Piston 8.50 15.00 23.00 42.50 48.00
9, External Cylinder 15.20 24.00 30.00 59.00 75.00
10, Guided Sleeve 1.80 3.00 4.00 6.30 12.00
11, “O” Ring Of Stop Ring 0.005 0.01 0.01 0.01 0.01
12, Stop Ring 0.20 0.40 0.60 1.40 1.70
13, Breakout Ring - - - 0.30 0.40
14, Drive Chuck 3.20 4.50 5.50 13.00 15.00
15, 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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