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Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series

Categories Borewell Drilling Hammers
Brand Name: New Diamond
Model Number: NQL series
Certification: ISO9001:2008
Place of Origin: Hunan, China (Mainland)
MOQ: Negotiable
Price: Negotiable
Payment Terms: L/C, T/T, Western Union
Supply Ability: According to order quantity
Delivery Time: 5-8 work days
Packaging Details: Carton packaging and wooden box packing
Type: hammers
Processing Type: Forging
Use: Ore Mining
Color: Required
Machine Type: Drilling Equipment
Usege: Mining&Construction&Water Well Drilling
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    Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series

    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
    Quality Heavy Duty Borewell Drilling Hammers For DTH Drilling Equipment NQL Series for sale
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