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R32-64mm Retract Rock Drilling Bit

    Buy cheap R32-64mm Retract Rock Drilling Bit from wholesalers
     
    Buy cheap R32-64mm Retract Rock Drilling Bit from wholesalers
    • Buy cheap R32-64mm Retract Rock Drilling Bit from wholesalers
    • Buy cheap R32-64mm Retract Rock Drilling Bit from wholesalers
    • Buy cheap R32-64mm Retract Rock Drilling Bit from wholesalers

    R32-64mm Retract Rock Drilling Bit

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    Brand Name : MIROC
    Model Number : R32-64mm
    Certification : ISO
    Supply Ability : 3000
    Delivery Time : 20-30
    • Product Details
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    R32-64mm Retract Rock Drilling Bit

    Product Overview
    A retractable button bit designed for small-to-medium diameter drilling (32–64mm), combining a retraction mechanism with button-shaped tungsten carbide inserts . Ideal for applications requiring frequent bit withdrawal in complex geological conditions.


    Key Features
    FEATURE:DESCRIPTION
    Retractable Design:Enables safe withdrawal during drilling to prevent jamming in fractured/abrasive formations.
    R32 Thread Connection:Standard R32 threaded shank compatible with most drill rigs (e.g., DTH, top hammer).
    Button Inserts:Spherical/wedge-shaped carbide tips for high wear resistance (suitable for medium-to-extremely hard rock).
    Optimized Flushing:Internal fluid channels ensure efficient cuttings removal and bit cooling.


    Applications
    Geotechnical Exploration : Core sampling, blast hole drilling.
    Mining : Small-diameter blast holes, anchor bolt holes.
    Civil Engineering : Tunnel support drilling, micropile foundations.
    Challenging Formations : Unstable layers (e.g., fault zones, loose gravel).


    Technical Specifications

    Parameter

    Range

    Notes

    Diameter Range

    32–64mm (incremental sizes)

    Custom sizes available.

    Rock Hardness

    80–250 MPa UCS

    Granite, quartzite, etc.

    Recommended Load

    5–15 kN

    Adjust per rig capacity.

    Rotation Speed

    80–150 RPM

    Lower for hard rock.

    Flushing Pressure

    ≥1.5 MPa

    Minimize bit balling.


    Part Number

    Product Code and Brief Description

    Bit Diameter (mm)

    Bit Diameter (inch)

    Front Buttons (No. x mm)

    Gauge Buttons (No. x mm)

    Angle

    Front Flushing Holes

    Side Flushing Holes

    Weight (kg)

    4148300527

    R945-R32-B, R32 Retrac Button Bit, Ballistic Buttons

    45

    1 7/9

    3x8

    6x9

    40°

    3

    -

    1.1

    4148300528

    R948-R32-B, R32 Retrac Button Bit, Ballistic Buttons

    48

    1 8/9

    3x9

    6x10

    30°

    3

    -

    1.2

    4148300529

    R951-R32-B, R32 Retrac Button Bit, Ballistic Buttons

    51

    2

    3x9

    6x10

    30°

    3

    -

    1.4

    4148300530

    R1064-R32-B, R32 Retrac Button Bit, Ballistic Buttons

    64

    2 1/2

    3x10, 1x10

    6x11

    35°

    3

    -

    2.2

    4148300531

    R1264-R32-B, R32 Retrac Button Bit, Ballistic Buttons

    64

    2 1/2

    4x10

    8x10

    40°

    2

    -

    2.2

    4148300532

    R1376-R32-B, R32 Retrac Button Bit, Ballistic Buttons

    76

    3

    4x11, 1x11

    8x11

    35°

    4

    1

    3.5


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