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QL60 DTH Hammer

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Product Detail


    DTH hammer

    DTH hammer is an integral part of the downhole drilling rig and belongs to the working device of the downhole drilling rig. DTH hammer is divided into low-pressure DTH hammer,middle air pressure DTH hammer and high pressure DTH hammer.


    The working principle of the DTH hammer: when the impact stroke begins, the piston and the valve are in the pole position, the pressure gas goes into the cylinder cavity through the radial hole of the valve cover and the valve seat, pushing the piston high-speed downward movement impact the drill bits. When the piston row to the bushing of the spline groove is closed, the lower chamber pressure began to rise, so the upper hole of the piston from the air distribution rod, so that the centre bore over pistons leaves the valve stem,make the upper chamber pass through the atmosphere, the pressure is reduced, the working stroke ends. When the piston impact the  drill tail, the valve due to its upper and lower pressure difference, starting reversing, the piston repeated return stroke movement.

    DTH hammer 02.jpg

    We supply many series of the hammer,QL60DTH hammer,COP34 DTH hammer,CIR90 DTH hammer,etc.


    		DTH hammer 03.jpg

    We supply many series of the hammer,QL60DTH hammer,COP34 DTH hammer,CIR90 DTH hammer,etc.



    DTH hammer typeHD35HD45HSD4HQL4
    Length(less bit) mm930mm103010841097
    Weight(less bit) kg25kg3940.541
    External diameter mmF82mmF99F99F99
    Bit shankDHD3.5COP44 DHD340SD4QL40
    Hole range(mm)F90-110F110-135F110-135F110-135
    Connection threadAPI 23/8" Reg.API 2 3/8"RegAPI 2 3/8"RegAPI 2 3/8"Reg




    Working pressure1.0-1.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
    Impact rate at 1.5-1.7Mpa28Hz27Hz27Hz27Hz
    Recommended Rotation speed25-40r/min25-40r/min25-40r/min25-40r/min
    Air consumption1.0Mpa4.5m3/min6.0m3/min6.0m3/min6.0m3/min
    1.8Mpa9.0m3/min10.0m3/min10.0m3/min10.0m3/min
    2.4Mpa/15.0m3/min15.0m3/min15.0m3/min

     

    DTH hammer typeHD55HD55CHSD5HQL5
    Length(less bit) mm1214116011751156
    Weight(less bit) kg76.572.572.573
    External diameter mmF125F125F125F125
    Bit shankCOP54 DHD350RHD55C DHD350QSD5QL50
    Hole range(mm)F135-155F135-155F135-155F135-155
    Connection threadAPI 2 3/8"RegAPI 2 3/8"RegAPI 3 1/2"RegAPI 3 1/2"Reg
    API 3 1/2"RegAPI 3 1/2"Reg

    Working pressure1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
    Impact rate at 1.5-1.7Mpa25Hz25Hz25Hz25Hz
    Recommended Rotation speed20-35r/min20-35r/min20-35r/min20-35r/min
    Air consumption1.0Mpa9.0m3/min9.0m3/min9.0m3/min9.0m3/min
    1.8Mpa15.0m3/min15.0m3/min15.0m3/min15.0m3/min
    2.4Mpa23.0m3/min23.0m3/min23.0m3/min23.0m3/min

     

    DTH hammer typeHD65HSD6HQL6HD85
    Length(less bit) mm1248126112121492
    Weight(less bit) kg10010095188
    External diameter mmF142F142F146F180
    Bit shankCOP64 DHD360SD6QL60COP84 DHD380
    Hole range(mm)F155-190F155-190F155-190F195-254
    Connection threadAPI 3 1/2"RegAPI 3 1/2"RegAPI 3 1/2"RegAPI 4 1/2"Reg




    Working pressure1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
    Impact rate at 1.5-1.7Mpa23Hz23Hz23Hz20Hz
    Recommended Rotation speed20-30r/min20-30r/min20-30r/min20-30r/min
    Air consumption1.0Mpa10.0m3/min10.0m3/min10.0m3/min15.0m3/min
    1.8Mpa20.0m3/min20.0m3/min20.0m3/min26.0m3/min
    2.4Mpa28.5m3/min28.5m3/min28.5m3/min34.0m3/min

     

    DTH hammer typeHSD8HQL8HSD10HN100
    Length(less bit) mm1463146515021510
    Weight(less bit) kg192182290288
    External diameter mmF180F180F226F226
    Bit shankSD8QL80SD10NUMA100
    Hole range(mm)F195-254F195-254F254-311F254-311
    Connection threadAPI 4 1/2"RegAPI 4 1/2"RegAPI 4 1/2"RegAPI 6 5/8"Reg


    		API 6 5/8"Reg
    Working pressure1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
    Impact rate at 1.5-1.7Mpa20Hz20Hz18Hz18Hz
    Recommended Rotation speed15-25r/min15-25r/min15-25r/min15-25r/min
    Air consumption1.0Mpa15.0m3/min15.0m3/min22.0m3/min22.0m3/min
    1.8Mpa26.0m3/min26.0m3/min40.0m3/min45.0m3/min
    2.4Mpa34.0m3/min34.0m3/min55.0m3/min60.0m3/min

     

    DTH hammer typeHD1120HSD12HN120NH125
    Length(less bit) mm1900188019001900
    Weight(less bit) kg480487485480
    External diameter mmF275F275F275F275
    Bit shankDHD1120SD12NUMA120NUMA125
    Hole range(mm)F305-445F305-445F305-445F305-445
    Connection threadAPI 6 5/8"RegAPI 6 5/8"RegAPI 6 5/8"RegAPI 6 5/8"Reg




    Working pressure1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
    Impact rate at 1.5-1.7Mpa16Hz16Hz16Hz16Hz
    Recommended Rotation speed15-25r/min15-25r/min15-25r/min15-25r/min
    Air consumption1.0Mpa30.0m3/min30.0m3/min30.0m3/min30.0m3/min
    1.8Mpa56.0m3/min56.0m3/min56.0m3/min56.0m3/min
    2.4Mpa78.0m3/min78.0m3/min78.0m3/min78.0m3/min


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Xiamen Bestlink Factory Co.,Ltd

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