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ND series Borewell Drilling Hammers without foot valve for Mining tools

Categories Borewell Drilling Hammers
Brand Name: New Diamond
Model Number: ND 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
Usege: Mining&Construction&Water Well Drilling
Application: MARBLE QUARRY OR WELL DRILLING
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    ND series Borewell Drilling Hammers without foot valve for Mining 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.according to China's mining conditions, to absorb the advanced technology of domestic and foreign impactor and design and manufacture of the latest products.


    2.reasonable selection of materials, advanced manufacturing technology, quality assurance perfect.


    3.has higher drilling speed.


    4.can provide hardening treatment in order to prolong the service life and reduce the cost of use.


    5.single impact power is large, and the power consumption of broken rock is low.


    6.piston and bit weight to have the best momentum transfer.


    7.the modern theory is adopted in the structural design, which makes the stress wave duration longer, the stress amplitude is lower, and the piston life is long.


    Applications


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


    Specifications


    ND Series High Air Pressure DTH Hammers Without Foot Valve

    Technical Data

    Length(Without Bit)ND25AND35AND45AND45SND55AND55S
    872mm888mm1011mm986mm1110mm1110mm
    Weight(Without Bit)16.00kg25.00kg43.20kg37.00kg69.00kg66.00kg
    External DiameterØ71mmØ82mmØ99mmØ92mmØ126mmØ116mm
    Bit ShankND25IR35COP44/DHD340COP44/DHD340COP54/DHD350RCOP54/DHD350R
    Hole RangeØ71-Ø90mmØ90-Ø115mmØ110-Ø135mmØ105-Ø120mmØ135-Ø155mmØ127-Ø145mm
    Connection ThreadT42x10x1.5API2 3”/8REGAPI2 3”/8REGAPI2 3”/8REG

    API2 3”/8REG

    API3 1”/2REG

    API2 7”/8REG

    2 7”/8 IF

    API2 3”/8REG

    API3 1”/2REG

    API2 7”/8REG

    Working Pressure1.0-1.5Mpa1.0-1.5Mpa1.2-2.0Mpa1.2-2.0Mpa1.3-2.3Mpa1.3-2.3Mpa
    Impact Rate at 14 Bar25HZ25HZ30HZ30HZ28HZ28HZ
    Recommended Rotation Speed22-35r/min25-40r/min22-35r/min25-40r/min20-35r/min25-35r/min
    Air Consumption

    1.0Mpa:4.0m³/min

    1.5Mpa:6.0m³/min

    1.0Mpa:3.8m³/min

    1.5Mpa:7.5m³/min

    1.0Mpa:6.0m³/min

    1.8Mpa:10.0m³/min

    2.4Mpa:15.0m³/min

    1.8Mpa:8.0m³/min

    2.4Mpa:13.0m³/min

    1.0Mpa:7.0m³/min

    1.8Mpa:14.0m³/min

    2.4Mpa:19.0m³/min

    1.0Mpa:7.0m³/min

    1.8Mpa:13.5m³/min

    2.4Mpa:18.0m³/min

    ND Series High Air Pressure DTH Hammers Without Foot Valve

    Technical Data

    Length(Without Bit)ND55C(A)ND65AND75AND85AND1120A
    1102mm1238mm1258mm1359mm1880mm
    Weight(Without Bit)68.00kg98.00kg120.00kg175.00kg474.00kg
    External DiameterØ126mmØ142/Ø146mmØ165mmØ180/Ø185mmØ275mm
    Bit ShankND55C/DHD350QCOP64/DHD360COP64/DHD360COP84/DHD380CDHD1120
    Hole RangeØ135-Ø155mmØ155-Ø203mmØ175-Ø216mmØ195-Ø254mmØ305-Ø445mm
    Connection Thread

    API2 3”/8REG

    API3 1”/2REG

    API2 7”/8REG

    API3 1”/2REGAPI3 1”/2REGAPI4 1”/2REGAPI6 5”/8REG
    Working Pressure1.3-2.3Mpa1.5-3.0Mpa1.5-3.0Mpa1.5-3.0Mpa2.0-3.5Mpa
    Impact Rate at 17 Bar28HZ25HZ23HZ22HZ20HZ
    Recommended Rotation Speed22-35r/min20-30r/min20-30r/min15-25r/min15-25r/min
    Air Consumption

    1.0Mpa:8.0m³/min

    1.8Mpa:6.0m³/min

    2.4Mpa:19.0m³/min

    1.0Mpa:9.0m³/min

    1.8Mpa:18.0m³/min

    2.4Mpa:26.0m³/min

    1.0Mpa:11.0m³/min

    1.8Mpa:20.0m³/min

    2.4Mpa:28.0m³/min

    1.0Mpa:12.0m³/min

    1.8Mpa:22.0m³/min

    2.4Mpa:28.0m³/min

    1.0Mpa:28.0m³/min

    1.8Mpa:50.0m³/min

    2.4Mpa:71.0m³/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.



    ND Series High Air Pressure DTH Hammers Without Foot Valve
    Item DescriptionWeight(kg)
    ND25AND35AND45AND45SND55AND55SND55C(A)ND65AND75AND85AND1120A
    1,Top Sub3.104.206.506.0013.7013.3013.7020.0023.0034.0070.00
    2,“O” Ring Of Top Sub-0.010.010.010.0150.0150.0150.020.0150.0150.04
    3,Breakout Ring---------0.300.80
    4,Chenck Valve0.100.200.350.300.700.700.700.700.701.202.00
    5,Spring0.050.020.050.050.100.100.100.100.100.100.10
    6,Air Distributor0.600.801.501.302.001.902.003.504.506.0016.00
    7,Internal Cylinder0.801.302.101.902.802.702.804.206.506.5025.00
    8,Piston3.805.508.507.8015.0014.5015.0023.0028.0042.50113.00
    9,External Cylinder4.509.5015.2014.6024.0023.0025.0031.5040.0060.00173.00
    10,Guided Sleeve0.601.001.301.202.602.503.206.507.505.3024.00
    11,“O” Ring Of Stop Ring0.0050.050.010.0050.010.010.010.010.010.010.01
    12,Stop Ring0.100.150.300.200.500.500.500.600.801.204.00
    13,Breakout Ring---------0.300.80
    14,Drive Chuck1.401.903.403.406.506.204.0006.008.0017.5046.00
    15,Drill Bit3.205.009.008.5016.0015.5015.9026.0028.5040.00140.00
    Quality ND series Borewell Drilling Hammers without foot valve for Mining tools for sale
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