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Diamond Impregnated Core Bit

Single Tube Bit

Single Tube Bit

This series impregnated core bits are designed for sustainability and cost efficiency. The bits are adjusted to fit slower rotation and heavy duty site-investigation rigs. They are less sensitive to abuse, rough handling and abrasive formations. A range of standardized matrices and one diamond impregnation height cover the most common applications. For site investigation and core drilling in shallow formations of less than 150 m (500 ft), this series impregnated core bits will be your optimal choice.
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FEATURES&BENEFITS
* Less sensitive to abuse for high sustainability and cost efficiency
* Matrices for a wide range of formations, easy bit selection
* Standardized design makes the bit range competitive and cost effective

STANDARD SPECIFICATION
ITEM DIAMOND BIT REAMING SHELL
Swedish 
Metric
T2
Series
Size Bit-set OD Bit-set ID
mm inch mm inch mm inch
36 36.0 1.417 22.0 0.866 36.3 1.429
46 46.0 1.811 32.0 1.260 46.3 1.823
56 56.0 2.205 42.0 1.654 56.3 2.217
66 66.0 2.598 52.0 2.047 66.3 2.610
76 76.0 2.992 62.0 2.441 76.3 3.004
86 86.0 3.386 72.0 2.835 86.3 3.398
101 101.0 3.976 84.0 3.307 101.3 3.988
Swedish

Series
TAW 47.6 1.875 23.2 1.31 48.0 1.89
TBW 59.5 2.345 44.9 1.77 59.9 2.36
TNW 75.3 2.965 60.5 2.38 75.7 2.98

APPLICATION
Application 1 Soft to medium hard rock with abrasive and fractured to competent formations  Matrix series 1-4
Application 2 Medium hard to hard rock with slightly abrasive and slightly broken to competent formations  Matrix series 5-8
Application 3 Hard to very hard rock with competent formations Matrix series 9-10

MATRIX SERIES
Rock Group Formation Description Rock Type
1-4 Soft to medium hard
Very abrasive to slightly abrasive
Very fractured to slightly broken
Unmetamorphosed or weakly metamorphosed shales,
Sandstone and limestone
5 Medium hard
Abrasive
Moderately fractured to slightly
broken
Limestone and dolomite.
Weathered granite and gneiss.
Serpentinite and metaperidotite.
6 Medium hard
Moderately abrasive
Moderately fractured to slightly
broken
Unmetamorphosed or weakly metamorphosed diorite,
Gabbro, peridotite and gneiss.
Basalt, andesite.
7 Medium hard - hard
Moderately abrasive
Slightly fractured to competent
Metabasalt, amphibolite.
Metamorphosed diorite and gabbro.
Diabase.
8 Hard
Slightly abrasive
Competent
Quartz rich skarn.
Granite and pegmatite
9 Very hard
Slightly abrasive
Very competent
Metamorphosed granitic rock and quartz rich gneiss.
10 Extremely hard
Non-abrasive, fine grained
Very competent
Chert and jasperite.
Quartzite.
Highly metamorphosed volcanic.

CROWN PROFILES
Extended channel flushing
*Standard profile-general purpose design
*Suitable for mixed formations containing broken and competent zones
*Suitable for a broad range of formations
Jet
*High performance “free cutting”bit
*High productivity
*Suitable for hard/competent formations
  Face discharge
*Designed to minimize flushing of core sample
*Suitable for broken/granular formations
Wheel gear
*Speed performance
*High productivity
*Suitable for hard/competent formations
Ball
*Suitable for mixed formations containing broken and competent zones
*Suitable for a broad range of formations

CROWN HEIGHT
Short depth holes 7mm
Short to medium depth holes 10mm
Deep holes 14mm
Next : No more!!

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EMAIL : info@hanghua.com
CONTACT US
ADD:Equipment manufacturing base in Shijiazhuang,Hebei Province Tel:+86-18632174927
Manager:Wendy Wang
Email:info@hanghua.com
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