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Exploration Mining Diamond Tip Core Drill Bits for Concrete 122 mm

Place of Origin: Zhejiang

Company Profile

Location: Wuxi, Jiangsu, China (Mainland)
Business Type: Manufacturer

Product Detail

Model No.: PQ3

Product Description

Exploration Mining Diamond Tip Core Drill Bits for Concrete 122 mm

 

 

Description:


The impregnated diamond bits are typically used in the drilling of hard earth layers (hard stratum or formations), and it is quite suitable for breaking and non-breaking of 5-10-level stratum and a variety of abrasive formations.

 

It mainly consists of diamond, steel body, carbide powder and polycrystalline diamond. The polycrystalline diamond is utilized to avoid too much abrasion of drill bits. The impregnated diamond is synthetic diamond (also called artificial diamond), which costs less but is more suitable to be used in drilling hard formations.

 

As to the packing, it is first packaged by cartons, and then put into the plywood case.

 

Specifications:

1. available in all standard drilling sizes (A,B,N,P,H).
2. various waterways design.
3. long bit life and good performance.

 

To select the right bit for the job, assess the speed and power of your drill for the size and depths of the holes to be drilled and assess ground conditions such as rock type/formation and down-hole conditions.

 

Non-standard also can be made as your requirement.

 

 

Application

Our impregnated bits matrices can be selected according to the chart below

Series

Number

Name of Rock
1 sand, soft shale, chalk, marly shale, med-hard limestone ,salt,frozen soil&ice,soft sandstone,sandy shale,claystone,sandy limestone,soft schist
2-3 soft shale,chalk,marly shale,med-hard limestone,salt,frozen soil&ice,soft sandstone,sandy shale,claystone,sandy limestone,soft schist,med-hard sandstone,siltstone,alluvial deposits,calcitic limestone
4-5 claystone,sandy limestone,soft schist,med-hard sandstone,siltstone,alluvial deposits,calcitic limestone,med-hard limestone,hard limestone,hard shale,dolomitic limestone
6-7 med-hard limestone,hard limestone,hard shale,dolomitic limestone,schist,serpentine,hard & mica schist,siliceous limestone,dolomite,marble,peridotite
7-8 dolomitic limestone,schist,serpentine,hard & mica schist,siliceous limestone,dolomite,marble,peridotite,andesite,pegmatite,hematite
8 dolomite,marble,peridotite,andesite,pegmatite,hematite,magnetit,metamorph schist,gneiss,granite,basalt
9-10 andesite,pegmatite,hematite,magnetit,metamorph schist,gneiss,granite,basalt,gabbro,rhyolite,diorite
10-11 magnetit,metamorphschist,gneiss,granite,basalt,gabbro,rhyolite,diorite,conglomerate,taconite

 

 

Technical Parameters:

 

SIZE BIT OD Hole Diameter BIT ID Core Diameter
inches mm inches mm
AQ 1.870/1.880 47.50/47.75 1.057/1.067 26.85/27.10
BQ 2.340/2.350 59.44/59.69 1.428/1.438 36.27/36.53
BQ3 2.340/2.350 59.44/59.69 1.315/1.325 33.40/33.65
NQ 2.960/2.970 75.18/75.44 1.870/1.880 47.50/47.75
NQ2 2.960/2.970 75.18/75.44 1.990/2.000 50.65/50.80
NQ3 2.960/2.970 75.18/75.44 1.770/1.780 44.96/45.21
HQ 3.755/3.770 95.38/96.00 2.495/2.506 63.38/63.63
HQ3 3.755/3.770 95.38/95.57 2.401/2.411 60.99/61.24
PQ 4.795/4.815 121.80/122.30 3.340/3.350 84.84/85.09
PQ3 4.795/4.815 121.80/122.30 3.265/3.275 82.93/83.19
T36 1.412/1.422 35.87/36.12 0.849/0.859 21.57/21.82
TB56 2.220 56.3 1.640 41.70
TT46 1.808/1.818 45.92/46.18 1.384/1.394 35.15/35.40
TT56 2.200/2.210
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