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Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series

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Address: PinJiang Industry Park,PingJiang county,YueYang City,Hunan,China.

Contact name:Rick Liao

Hunan New Diamond Construction Machinery Co., Ltd.

Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series

Country/Region china
City & Province yueyang hunan
Categories General Mechanical Components Agents

Product Details

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)NQL4ANQL5ANQL6ANQL8ANQL95A
1070mm1090mm1183mm1330mm1340mm
Weight(Without Bit)40.00kg67.00kg90.00kg171.00kg203.00kg
External DiameterØ99mmØ126 mmØ165mmØ180/Ø185mmØ203mm
Bit ShankQL40QL50QL600QL80QL80
Hole RangeØ110-Ø135mmØ155-Ø203mmØ155-Ø203mmØ195-Ø254mmØ216-Ø254mm
Connection ThreadAPI2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REGAPI4 1”/2REGAPI4 1”/2REG
Working Pressure1.2-2.0Mpa1.3-2.3Mpa1.5-2.5Mpa1.5-3.0Mpa1.8-3.0Mpa
Impact Rate at 17 Bar30HZ28HZ25HZ22HZ22HZ
Recommended Rotation Speed20-30r/min20-35r/min20-30r/min15-25r/min15-25r/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 DescriptionWeight(kg)
NQL4ANQL5ANQL6ANQL8ANQL95A
1, Top Sub6.5013.7020.0034.0035.00
2, “O” Ring Of Top Sub0.010.0150.0150.0150.01
3, Breakout Ring---0.300.04
4, Chenck Valve0.350.700.701.201.20
5, Spring0.050.100.100.100.10
6, Air Distributor1.502.003.506.007.00
7, Internal Cylinder2.102.704.206.507.50
8, Piston8.5015.0023.0042.5048.00
9, External Cylinder15.2024.0030.0059.0075.00
10, Guided Sleeve1.803.004.006.3012.00
11, “O” Ring Of Stop Ring0.0050.010.010.010.01
12, Stop Ring0.200.400.601.401.70
13, Breakout Ring---0.300.40
14, Drive Chuck3.204.505.5013.0015.00
15, Drill Bit9.0016.0025.0035.0050.00

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