BR2-90 DTH Drill Bit
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).
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! | ||||||||