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BR2-90 DTH Drill Bit

Shank type: BR2, BR3; and DTH drill bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-350mm).

Rock drilling tools factory ROSCHEN manufactures DTH Hammer Bits with BR shank type are available in a various range of sizes and with a number of custom design features for optimum performance in a rock formation, designed to match all conceivable applications for water well industries, stone quarrying, mining and construction.

Quantity:
  • BR2-90
  • ROSCHEN
  • BR2-90

Product Description

DTH Drill Bit BR2-90

Product Description


CODE NO.

BR2-90

Shank type

BR2

Diameter

90mm

air holes

2

gauge buttons

6*14mm

face buttons

6*12mm

Bit face type

concave face

carbide design

parabolic(semi-ballisic)

approx. weight

4.2Kgs


Shank type: BR2, BR3; and DTH drill bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-350mm).

DTH drill bit BR2

Rock drilling tools factory ROSCHEN manufactures DTH Hammer Bits with BR shank type are available in a various range of sizes and with a number of custom design features for optimum performance in a rock formation, designed to match all conceivable applications for water well industries, stone quarrying, mining and construction.

 

Convex Face

 A classic design of rock drill bits for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.

 For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.

 

Semi-Ballistic/Parabolic Buttons

Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation.


Dth Hammer Drilling Tools Specifications: 

 

ROSCHEN   DTH Hammers Specifications


Hammer   Size

Bit   Shank

ROSCHEN   Code

Connection   Thread

Suitable   bit

Working   pressure

Air   consumption



2"

BR2

ROS   11

ROS   22

RD50   box

70-90mm

0.7-1.75Mpa

0.7Mpa

4.5m3/min


1.0Mpa

4m3/min


1.4Mpa

5m3/min


3"

DHD3.5

ROS   32

API   2 3/8" Reg

90-110mm

1.0-1.5Mpa

1.0Mpa

4.5m3/min


COP32/COP34


M30

1.5Mpa

9m3/min


4"

DHD340

ROS   34

API   2 3/8" Reg

110-135mm

1.0-2.5Mpa

1.0Mpa

6m3/min


COP44


QL40


SD4

1.8Mpa

10m3/min


M40

2.4Mpa

15m3/min


5"

DHD350

ROS   52

ROS   54

API   2 3/8"Reg/API 3 1/2" Reg

135-155mm

1.0-2.5Mpa

1.0Mpa

9m3/min


COP54


QL50


SD5

1.8Mpa

15m3/min


M50

2.4Mpa

23m3/min


6"

DHD360

ROS   62

ROS   64

API   3 1/2" Reg

155-190mm

1.0-2.5Mpa

1.0Mpa

10m3/min


COP64


QL60


SD6

1.8Mpa

20m3/min


M60

2.4Mpa

28.5m3/min


8"

DHD380

ROS   82

ROS   84

API   4 1/2" Reg

195-254mm

1.0-2.5Mpa

1.0Mpa

15m3/min


COP84


QL80

1.8Mpa

26m3/min


SD8

2.4Mpa

34m3/min


M80/M85


10"

SD10

ROS   100

API   6 5/8" Reg

254-311mm

1.0-2.5Mpa

1.0Mpa

22m3/min


Numa100

1.8Mpa

40m3/min


ROS   100

2.4Mpa

55m3/min


12"

DHD1120

ROS   120

API   6 5/8" Reg

305-445mm

1.0-2.5Mpa

1.0Mpa

30m3/min


SD12

1.8Mpa

56m3/min


Numa120

2.4Mpa

78m3/min


Notes:   Any special size of DTH bits will be available by requests.


Metzke,   Remet thread is available!



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