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R32-64mm Retract Rock Drilling Bit

Categories Button Drill Bit
Brand Name: MIROC
Model Number: R32-64mm
Certification: ISO
Place of Origin: CHINA
MOQ: 1
Supply Ability: 3000
Delivery Time: 20-30
Type: Retrac Button Bit
Material: Tungsten Carbide
Body type: Retrac
Color: Customized
Advantage: High-efficiency
Use: Quarry,construction,blasting,open pit and underground
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R32-64mm Retract Rock Drilling Bit

R32-64mm Retract Rock Drilling Bit
Product Attributes
TypeRetrac Button Bit
MaterialTungsten Carbide
Body typeRetrac
ColorCustomized
AdvantageHigh-efficiency
UseQuarry, construction, blasting, open pit and underground
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
  • 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
ParameterRangeNotes
Diameter Range32-64mm (incremental sizes)Custom sizes available.
Rock Hardness80-250 MPa UCSGranite, quartzite, etc.
Recommended Load5-15 kNAdjust per rig capacity.
Rotation Speed80-150 RPMLower for hard rock.
Flushing Pressure≥1.5 MPaMinimize bit balling.
Product Variants
Part NumberProduct Code and DescriptionBit Diameter (mm)Bit Diameter (inch)Front Buttons (No. x mm)Gauge Buttons (No. x mm)AngleFront Flushing HolesSide Flushing HolesWeight (kg)
4148300527R945-R32-B, R32 Retrac Button Bit, Ballistic Buttons451 7/93x86x940°3-1.1
4148300528R948-R32-B, R32 Retrac Button Bit, Ballistic Buttons481 8/93x96x1030°3-1.2
4148300529R951-R32-B, R32 Retrac Button Bit, Ballistic Buttons5123x96x1030°3-1.4
4148300530R1064-R32-B, R32 Retrac Button Bit, Ballistic Buttons642 1/23x10, 1x106x1135°3-2.2
4148300531R1264-R32-B, R32 Retrac Button Bit, Ballistic Buttons642 1/24x108x1040°2-2.2
4148300532R1376-R32-B, R32 Retrac Button Bit, Ballistic Buttons7634x11, 1x118x1135°413.5
Product Images
China R32-64mm Retract Rock Drilling Bit factory
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