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ISO9001 Approval Symmetrix Drilling System , OD 194mm DTH Drilling System

Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
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    Buy cheap ISO9001 Approval Symmetrix Drilling System , OD 194mm DTH Drilling System from wholesalers
     
    Buy cheap ISO9001 Approval Symmetrix Drilling System , OD 194mm DTH Drilling System from wholesalers
    • Buy cheap ISO9001 Approval Symmetrix Drilling System , OD 194mm DTH Drilling System from wholesalers

    ISO9001 Approval Symmetrix Drilling System , OD 194mm DTH Drilling System

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    Brand Name : Teamwhole
    Model Number : O.D. 194mm Concentric casing system
    Certification : ISO9001:2008
    Price : Negotiation
    Payment Terms : L/C, T/T
    Supply Ability : 5000 Set/Sets per Month Concentric overburden drill bit
    Delivery Time : Shipped in 25 days after payment
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    ISO9001 Approval Symmetrix Drilling System , OD 194mm DTH Drilling System

    O.D. 194mm Concentric overburden drill bit with blocks


    Specification

    1.Face: Flat,Convex,Concave,Drop-center.
    2.Carbide Button Shape: Spherical,Semi-ballistic,Ballistic and Two-step
    3.Bit Shank: COP64/DHD360(TH6)/SD6/QL60/M60

    Retrievable modelOuter Dia.of casing tubeInner Dia.of casing tubeWall thickness of casingRing bit outer Dia(mm)Ring Bit set inner Dia.(mm)Max.outer Dia.of normal bit(mm)Hammer Type
    (mm)(mm)(mm)
    TOP HAMMER
    R76/8-41-R3276608884158R32
    R89/8-54-T38897381005470T38
    R114/10-61-T4511494101256193T38
    R140/10-75-T381401201015875117T45/T51
    DTH
    R114/10-801141016.51228078COP44/DHD340/Mach44/M40/SD4/XL4/QL40
    R139/10-10213911910147102100
    R152/10-11415213210160114112
    R168/10-13016814810177130128COP54/DHD350/Mach50/M50/SD5/QL50
    R193/12.7-152193167.612.7203152150COP64/COP62/DHD360/M60/SD6/XL6/QL60/TD150
    R219/12.7-175219193.612.7232175173
    R244/12.7-198244218.612.7254198196DHD380/COP84/SD8/QL80/TK18
    R273/12.7-224273247.612.7285224222
    R323/12.7-271323297.612.7338271269
    R406/12.7-350406380.612.7420350348
    R508/16-44450847616524444442
    R609/16-55360957716637553551QL200/SD18/
    NUMA180/TH18/
    TS18/TK18
    R711/16-63971167916731639637QL200S/TH32/
    R762/16-69076273016781690688TK24
    R812/16-73481078016834734732
    R914/16-83591488216935835833
    R1016/16-9111016984161033911909QL300

    General Introduction

    Application Range

    It is recommended to drill in rock formation where contains some ovals and fractures.

    Design Principles

    Make the casing follow easy and the equipment and operation simple

    Outstanding Advantages

    1.The stable and reliable working performance and the less vibration of drill rig.

    2.Flexible to open and close.

    Operation Procedure

    1.when the drilling starts, the blocks slides down through the grooves on pilot bit,and reams to drive the casing shoes and tubes into the hole.

    2.When finished the drilling in overburden rock formations, raise the drilling tools and the blocks will get closed through the grooves , and the drilling tools can be pulled out from the hole.

    3. Next construction can be followed.


    Raw Material

    Steel:

    first class special alloy steel with high strength, heat resistance and wearable


    Carbide
    The best tungsten carbides from China are commonly applied.
    Tungsten carbide from European is also available.



    Structural Advantage

    Straightness: ensure the staightness of borehole in different topographic and geological conditions.

    Adaptability: ensures penetration efficiency in complex topograhic and geological conditions, such as gravel and landfill of construction refuse.

    Lower torque: the system torque is less than eccentric casing system.

    Easy to unlock and re-lock: easy to re-lock after unlock.

    Drilling at any angle: concentric casing system can drill under horizontal, vertical and inclined condtions.

    Enviromental: better than eccentric casing system because of its advantages of drilling smoothily, small vibration and low noise, it's more suitable for construction in urban areas.


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