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Br2 Shank 76mm DTH Bit for Small Hole

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Br2 Shank 76mm DTH Bit for Small Hole

China Br2 Shank 76mm DTH Bit for Small Hole supplier

Large Image :  Br2 Shank 76mm DTH Bit for Small Hole

Product Details:

Place of Origin: China
Brand Name: PRODRILL
Certification: ISO:9001
Model Number: Br2 Shank 76mm

Payment & Shipping Terms:

Minimum Order Quantity: 1 Pcs
Price: $1~$300/pcs
Packaging Details: WOODEN BOX
Delivery Time: 10-15 DAYS
Payment Terms: T/T
Supply Ability: 5000Pcs/Month
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Detailed Product Description
Type: Drill Bit Machine Type: Drilling Tool
Material: Carbide Processing Type: Forging
Use: Coal Mining


BR1, BR2, BR3 is low pressure and mdedium pressure hammer using BR series bits.
It is valveless hammer, especially suitable for quarrying.

BR1 hammer technical data:
Length(without bits): 880mm
Weight(without bits): 14.5kg
External diameter: 62mm
Shank: Bulroc BR2
Hole range: 70mm-90mm
Connection thread: RD50 BOX
Working pressure: 7-17.5 bar
Impact rate ar 14 bar: 25Hz
Recmmended rotation speed: 25-40r/min
Air consumption:
At 7 bar: 2.5m3/min
At 10 bar: 4m3/min
At 14 bar: 5m3/min

We can prodive DTH bits for BR2 hammer diameter: 70mm, 76mm, 80mm, 85mm, 90mm  customers' design is avaible.
 
We export DTH hammer and bits for almost thirty years.
DTH Hammer

Designed to suit high pressure drilling rigs.
» Water well drilling
» Record breaking penetration.
» Bench drilling
» Exploring Civil Engineering Applications
» Lowest cost per foot drilled.
» Mining /Mineral Exploration
» Simple & robust design. Exploring Civil Engineering Applications
» Oil well drilling
» Foot Valve not required in the bit.
» Longer parts life.


Specification:
 

Hammer DTH 1" bit 2" bit 3" bit 4" bit 5" bit 6" bit 8" bit 10" bit 12" bit 15" bit 20" bit 24" bit
Drill Blasting by DTH rig for down the hole in mm 57 64 70 76 (3") 80 82 90 92 95 100 105  110 105 110 115  120 125  130 130 135 138 140 146 150 152(6") 156 152 154 156 159 165 171 178 185 190 203(8") 200 203 216 219 222 225 229(9") 235 240 254(10") 270 279(11") 254  270 279  295  305(12")  311 315 330 (13") 305 311 315 330 343  350  356 368 375 381 (15") 381  391 413  435 438  445  451  457(18") 464 483(19") 508(20") 483  508  560(22")  578 610(24")  660(26") 610 660 724 737 ( 29")   762  (30")   864   (34 ") 914 (36")
Specification BR1 BR2 DHD25 DHD35 IR3.5 COP34 BR3 QL30 COP32 M30 DHD340A     COP44 SD4 M40 SD4 DHD55 DHD350R COP54 M50 SD5 QL50 DHD65 M60 SD6 QL60 DHD85, DHD380, DHD84, M80, SD80, QL80 SD10 NUMA100 DHD120 NUMA120 NUMA125 DHD330 DHD450 DHD525

 

 
Bit Face Flat Flat Flat Flat Flat Cancave Canvex Cancave Canvex Cancave Canvex Cancave Canvex Cancave Canvex Cancave Canvex Cancave Canvex
Carbide button Dome/hemispherical, Paraboli/semi-ballistic,  Ballistic
Gauge buttons
 

 
8*12, 7*11 8*14 8*16/18
 

 

 

 

 

 

 
Front buttons
 

 

 
7*12/13/14 8/10*14/15/16
 

 

 

 

 

 

 
Buttons Qty 8 10 to 13 15 15 to 18 16 to 18 16 to 24 18 to 41 22 to 41 41 to 55 45 to 81 77to 93 75 to 132
Air pressure 0.7-1.75Mpa 0.7-1.75Mpa 1-1.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa 1-2.5Mpa
Size type Normal Normal Normal Normal Normal Normal Normal Big size Big size Big size Big size Big size
Skirt steel 23CrNi3Mo,                20Cr2Ni4
Production process Fully carburized () of special heat treament with stress relief ( )  + full CNC ()for accurate machincal processing for perfect arc of skirt body to assure same consumption of skirt body with YK05 tungsten carbide inserts, which is by cold-inserted techology , no broken and drop in time of drilling
Advantage
 

 

 

 

 

 

 

 

 

 

 

 
R. O.P fast fast fast fast fast fast fast fast fast fast fast fast
Hole straightness Perfect Perfect Perfect Perfect Perfect Perfect Perfect Perfect Perfect Perfect Perfect Perfect
Hole clean quality Good Good Good Good Good Good Good Good Good Good Good Good
Productivity action High High High High High High High High High High High High
Drilling life Longer Longer Longer Longer Longer Longer Longer Longer Longer Longer Longer Longer
Interchangable Ok Ok Ok Ok Ok Ok Ok Ok Ok Ok Ok
 
Air consumption Less Less Less Less Less Less Less Less Less Less Less
 
Resisitance wear High High High High High High High High High High High
 
Usage Quarry Quarry Quarry blasting blasting blasting blasting water wells oil gas water wells oil gas water wells oil gas water wells oil gas water wells oil gas
Site
 

 

 

 

 

 

 

 

 

 

 

 
Rock hardness
 

 

 
14-16HRC
 

 

 

 

 

 

 

 
Air pressure
 

 

 
20KG
 

 

 

 

 

 

 

 
Depth meter
 

 

 
1.5 M
 

 

 

 

 

 

 

 
drilling speed
 

 

 
4 minute
 

 

 

 

 

 

 

 

 

Contact Details
Xiamen Prodrill Equipment Co., Ltd

Contact Person: Mr. Simon Hu

Tel: 86-592-5187313

Fax: 86-592-5162951

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