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DTH drill bits

Low air pressure dth drill bit

Features:
1. High and low air pressure down-the-hole drill bits
2. Low air pressure holeDia.: 65-220mm
3. High air pressure hole Dia.: 85-305mm
4. Face type: Drop center/concave/convex/double gauge/flat
Keywords:dth drill bit, drill bit, hammer bit, rock bit, drilling bit, dth drilling bit

    Low air pressure DTH drill bit

    Brief introduction of our DTH drill bits: 

    Down-the-hole (DTH) hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Our variety of Down the Hole (DTH) bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life. We offer a comprehensive range of standard and made to order drill bits on an extensive selection of shanks with a wide variety of head designs to suit every project.

    How to Chose the Right Products:

    When selecting the right bit for optimum performance you have to balance penetration against bit life. On occasion you can successfully sacrifice bit life for penetration, remember the rule of thumb that states that a 10% increase in penetration covers at least a 20% loss in bit life. We have three basic bits head designs: Flat Face, Convex and Concave. These are designed for specific applications for all rock types, hardness’s and conditions.

    Specifications of CIR series DTH drill bit:

    Type of DTH hammer

    Max. Dia(mm)

    Number of spine

    Weight(KG)

    CIR50

    50

    4

    2.2

    CIR65

    68

    4

    2.5

    CIR70

    76

    4

    3.4

    CIR90

    90100110120130

    6

    4-7

    CIR110

    110120130140150

    6

    4.5-8.5

    CIR130

    130140150

    6

    6.5-9

    CIR150

    150180200

    6

    12-16

    CIR170A

    170180200

    6

    16-25

    CIR200A

    200

    6

    30

    Specifications of CIR series DTH hammer:

    Hammers

    Connection Thread

    Size of drill bit

    Working pressure

    Air consumption

    CIR65

    F42x10 PIN

    70mm

    4-10bar

    6-10m3/min

    CIR70

    F48x10 PIN

    760mm

    4-10bar

    6-10m3/min

    CIR90A

    F48x10 PIN

    90-120mm

    4-12bar

    8-12m3/min

    CIR90B

    F48x10 PIN

    90-120mm

    4-12bar

    8-12m3/min

    CIR110

    PIN 2 3/8" REG BOX

    110-150mm

    6-12bar

    8-12m3/min

    CIR130

    PIN 2 3/8" REG BOX

    130-175mm

    6-12bar

    8-12m3/min

    CIR150

    F70x10 BOX

    150-200mm

    6-12bar

    10-16m3/min

    CIR170A

    F100x28 BOX

    170-250mm

    8-14bar

    12-18m3/min

    CIR200A

    F100x28 BOX

    200-250mm

    8-14bar

    16-20m3/min


    Picture of CIR series DTH drill bit
    :

     Zhuzhou Xinpin Cemented Carbide Co., Ltd.
                  Ashary You
            ashary@.xpczz.com 
     Wechat/Mob: +86 15197366167
     Website: www.xinpincarbide.com
    We can design and manufacture according to customers requirement of the bit diameter,the NO.of air holes,carbide buttons and the face shape.

    Please submit your basic information, we will contact you as soon as possible!

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