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High Pressure Rock Drilling DTH Hammer DHD350 Hammer , Downhole Hammer with Foot Valve

Categories Down The Hole Hammer
Brand Name: ROSCHEN
Model Number: DHD350
Certification: ISO
Place of Origin: CHINA
MOQ: 1 set
Price: Negotiate
Supply Ability: 10000 sets
Packaging Details: Poly wooden box
Model: DHD350 Down The Hole Hammer, DTH Hammer
Delivery time: stocks is available
Material: Tungsten Carbide
Usage: Water well drilling, Mining Drilling
Processing: Forging
Tools: Down The hole drilling
Machine: Crawler Drill rig
Thread: API Reg. Pin, Box
Hole Range: 90-1200mm
Pressure: High Pressure
Use: Quarry Drilling, Blast hole drilling
Company Info.
ROSCHEN GROUP
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    High Pressure Rock Drilling DTH Hammer DHD350 Hammer , Downhole Hammer with Foot Valve

    High Pressure Rock Drilling DTH Hammer , Downhole Hammer with Foot Valve

    High Pressure Rock Drilling DTH Hammer DHD350 hammer, Downhole Hammer with Foot Valve


    High Pressure Rock Drilling DTH Hammer , Downhole Hammer with Foot Valve


    5 inch COP54 , DHD350R Shank High pressure rock drilling DTH hammer with foot valve



    Drill bits


    Selecting the right bit

    Roschen has a comprehensive range of DTH drill bits to match all conceivable applications.

    Each bit is made from quality alloy steel, and has been precision machined to produce a perfect body, heat treated to the required hardness, given surface compression for fatigue resistance, and fitted with precision buttons manufactured in-house.

    Five basic designs are available: Convex, Flat front, Speed Bit, Concave, and Rocket bit. These are designed for specific applications for all rock types, hardness's and conditions Bit life and rate of penetration are the most important criteria in selecting the right bit for a particular application.

    In most cases, the focus is on productivity, so the fast cuttings removal features of the SpeedBit and Convex/Ballistic designs are preferable, to ensure the buttons are cutting clean, with the minimum of recrushing.

    In hard and abrasive formations, however, the flat front design offers best bit life, having strong gauge rows with large spherical buttons which are easy to regrind and maintain. The Speed Bit offers improved productivity with the same gauge as the Flat front, but with ballistic buttons in the front for faster penetration. An alternative is the Concave design with spherical buttons.

    The Rocket bit can be dressed with ballistic buttons for use in soft to medium hard formations where fractured rock can be expected, or can be supplied with spherical buttons for hard and abrasive formations.
    Bits are manufactured to match all diameters of Secoroc hammers.


    It is a kind of valveless high air pressure DTH hammer with foot valve.


    The rock hammer has the fellow advantages:


    1: Valveless air distribution. more reliable.
    2. The rock impacter are simple design of the piston, long life.
    3. More efficient energy transfter,faster drilling speed, lower air consumption and lower oil consumption.
    4. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.

    5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected multi-step thread.


    Hammer shank available:


    1. BR shank series: BR1, BR2, BR3;
    2. Cop shank series: Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
    3. DHD shank series: DHD3.5, DHD340,DHD350, DHD360, DHD380;
    4. SD shank series: SD4, SD5, SD6, SD8, SD10, SD12, SD15, SD18;
    5. Mission shank series: Mission40, Mission50, Mission 60, Mission 80;
    6. QL shank series: QL30, QL40, QL50, QL60, QL80;
    7. NUMA shank series: NUMA120, NUMA125, NUMA180, NUMA240;


    Other hammer shanks can be available according to customer's drawing or samples.


    Technical Parameters of High air pressure DTH hammer with foot valve


    DHD 350 Hammer Parts List
    Item DescriptionWeightParts No.
    1.Top Sub15RD5501
    2.O-Ring of Top Sub0.01RD5502
    3.Check Valve1RD5503
    4.Spring0.04RD5504
    5.Compression Buffer0.06RD5505
    6.Air Distributor3.7RD5506
    7.Internal Cylinder4.5RD5507
    8.Piston15.5RD5508
    9.External Cylinder30RD5509
    10.O-Ring of stop ring0.01RD5510
    11.Stop Ring0.3RD5511
    12.Drive Chuck6.4RD5512
    13.Drill Bit16RD5513


    According to customer's requirement, the top sub can be made into two spanners, and put protection buttons, An air controllinghole can be drilled on the check valve to provide more efficient cuttings discharge.


    Technical Parameters
    Length (Less bit)Weight (Less bit)External Dia.Bit ShankHole RangeConnection Thread
    1214mm76.5kg125mmCOP54, DHD350R135-155mmAPI 2-3/8''REG
    API 3-1/2''REG
    Working PressureImpact rate at 0.5 MpaRecommended Rotation SpeedAir Consumption
    1.2-2.5Mpa25HZ20-35r/min1.0Mpa1.8Mpa2.4Mpa
    9m3/min15m3/min23m3/min

    Any more technical question of this DTH Hammer&Bits please feel free contact with our DTH drilling Tools department.

    ROSCHEN DTH Hammers Specifications
    Hammer SizeBit ShankROSCHEN CodeConnection ThreadSuitable bitWorking pressureAir consumption
    2"BR2ROS 11
    ROS 22
    RD50 box¢70-¢90mm0.7-1.75Mpa0.7Mpa4.5m3/min
    1.0Mpa4m3/min
    1.4Mpa5m3/min
    3"DHD3.5ROS 32API 2 3/8" Reg¢90-¢110mm1.0-1.5Mpa1.0Mpa4.5m3/min
    COP32/COP34
    M301.5Mpa9m3/min
    4"DHD340ROS 34API 2 3/8" Reg¢110-¢135mm1.0-2.5Mpa1.0Mpa6m3/min
    COP44
    QL40
    SD41.8Mpa10m3/min
    M402.4Mpa15m3/min
    5"DHD350ROS 52 ROS 54API 2 3/8"Reg/API 3 1/2" Reg¢135-¢155mm1.0-2.5Mpa1.0Mpa9m3/min
    COP54
    QL50
    SD51.8Mpa15m3/min
    M502.4Mpa23m3/min
    6"DHD360ROS 62 ROS 64API 3 1/2" Reg¢155-¢190mm1.0-2.5Mpa1.0Mpa10m3/min
    COP64
    QL60
    SD61.8Mpa20m3/min
    M602.4Mpa28.5m3/min
    8"DHD380ROS 82 ROS 84API 4 1/2" Reg¢195-¢254mm1.0-2.5Mpa1.0Mpa15m3/min
    COP84
    QL801.8Mpa26m3/min
    SD82.4Mpa34m3/min
    M80/M85
    10"SD10ROS 100API 6 5/8" Reg¢254-¢311mm1.0-2.5Mpa1.0Mpa22m3/min
    Numa1001.8Mpa40m3/min
    ROS 1002.4Mpa55m3/min
    12"DHD1120ROS 120API 6 5/8" Reg¢305-¢445mm1.0-2.5Mpa1.0Mpa30m3/min
    SD121.8Mpa56m3/min
    Numa1202.4Mpa78m3/min
    Notes: Any special size of DTH bits will be available by requests.
    Metzke, Remet thread is available!





    FAQ



    The information about dth drill bit you may like to know before order:


    1. Methods of Payment:
    T/T (Telegraphic Transfer) or Western Union or L/C at sight


    2. Handling time for an order
    Based on order quantity, normally it takes 20 days for production.
    in 3 working days after receiving the advance payment


    3. Shipping way
    Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
    Bulk order: we suggest by air or by sea.


    4. Quality Control
    We have our own experienced QC.
    There will be strict inspection and testing for every order before shipping out.


    5. After Services:
    a. Our sales team will response for your question within 24 hours (Holidays Excluded)
    b. Technical Support will be available in any time


    6. Quality & Service:
    A. There will be strict inspection and testing for every order before shipping out.
    B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009
    C. Free replacement will provide once the failure confirmed caused or our product quality.




    For more information please contact:



    ROSCHEN INC.
    ROSCHEN GROUP LIMITED
    ROSCHEN HOLDINGS LIMITED

    Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

    WeChat: +86-137 6419 5009 ; +86-135 8585 5390

    WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

    Email: roschen@roschen.com ; roschen@roschen.net

    Website: http://www.roschen.com ; http://www.roschen.net
    http://www.roschen.cn ; http://www.roschendrill.com
    http://www.roschenmining.com ; http://www.roschendrilling.com
    http://www.roschengroup.com

    Product Tags:

    dth drilling tools

      

    down hole tools

      
    Quality High Pressure Rock Drilling DTH Hammer DHD350 Hammer , Downhole Hammer with Foot Valve for sale
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