China Down The Hole Bits for Sales

DOWN-THE-HOLE BITS

Roschen DTH drill bits are fitted with our cemented carbide inserts, which provide you with superior life and drilling productivity.
The Roschen DTH button bit designs are well known and extensively used around the world. Whatever conditions you're dealing with, our drill bits make the job easier. They are fitted with Roschen's proprietary cemented carbide buttons, which are designed to drill further. The drill bit bodies are made from precision hardened nickel molybdenum steel, with a compound curve shape for faster and smoother cutting and easier removal of cuttings.
The bits in the new range have an optimized head length with maximized steel support for the cemented carbide buttons, deep face grooves for excellent flushing and an aggressive cutting structure.
Advantages:
1. Proprietary Sandvik carbide ensures high quality and performance
2. Carbide grade options for long life in challenging applications
3. Face designs to maximize penetration rate and tool life
4. Optimized flushing designs to aid in cuttings removal and reduce wear
Product specifications:

Hammer inchBits diameterShankMetricInch1"64mm-70mm2 1/2"-2 3/4"BR12"70mm-95mm2 3/4"-3 3/4"MACH20/BR23"90mm-102mm3 1/2"-4"COP32/COP34/MACH303M30/DHD3.5/BR34"105mm-152mm4 1/8"-6"COP44/DHD340/MACH44SD4/M40/QL405"133mm-165mm5 1/4"-6 1/2"COP54/DHD350R/MACH50SD5/M50/QL50/BR56"152mm-254mm4 1/8"-10"COP64/DHD360/SD6M60/QL60/Bulroc BR68"203mm-330mm8"-13"COP84/DHD380/SD8QL80/M8010"254mm-380mm10"-15"SD10NUMA10012"305mm-508mm12"-20"DHD1120/SD12NUMA120/NUMA125
ROSCHEN RC hammer technical data:

ROSCHEN DTH Bits SpecificationsHammer SizeBits diameterShankROSCHEN CODEMetricInch1"64mm-70mm2 1/2"-2 3/4"BR1ROS 112"70mm-95mm2 3/4"-3 3/4"MACH20/BR2ROS 223"90mm-102mm3 1/2"-4"COP32/COP34/MACH303ROS 32M30/DHD3.5/BR3ROS 344"105mm-152mm4 1/8"-6"COP44/DHD340/MACH44ROS 42SD4/M40/QL40ROS 445"133mm-165mm5 1/4"-6 1/2"COP54/DHD350R/MACH50ROS 52SD5/M50/QL50/BR5ROS 546"152mm-254mm4 1/8"-10"COP64/DHD360/SD6ROS 62M60/QL60/Bulroc BR6ROS 648"203mm-330mm8"-13"COP84/DHD380/SD8ROS 82QL80/M80/M85ROS 8410"254mm-380mm10"-15"SD10ROS 100NUMA10012"305mm-508mm12"-20"DHD1120/SD12ROS 120NUMA120/NUMA125Notes: Metzke, Remet thread is available!Any special size of DTH bits will be available by requests.
Shank can be available:
1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD15, SD18
11), VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...
Button Bits Features:
1. Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.
2. Recommended for eliminating hole deviation
3. Widely used drifting and tunneling
4. Bit face design is ideal for medium-hard to hard abrasive rock

Shank can be available:
R25/R32 button bits: from 41mm to 115mm
T38/R38 button bits: from 57mm to 89mm
T45 button bits: from 70mm to 105mm
T51 button bits: from 89mm to 127mm
ST58 button bits: from 89mm to 127mm
GT60 button bits: from 102mm to 152mm
EL68 button bits: from 115mm to 152mm
ST68 button bits: from 115mm to 152mm
Buttons shape: Domed,spherical, parabolic (semi-ballistic), ballistic
Face shape: flat face, drop center, uni-face;
Skirt type: normal, retrac, straightrac
We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc
Product photos
Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally need 15-25 days
Transportation:
By air, By Express or By sea according to your requests.
FAQ
Q: Are you a manufacturer or trading company ?
A: We are a specialized manufacturer.
Q: How about the delivery terms ?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.
Q: How about discount ?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.
For more information, please contact:

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED




Website: http://roschen.en.made-in-china.com ; http://roschen.en.made-in-china.com