China Cop54 140mm Cop54 146mm Cop54 152mm Cop54 165mm DTH Bits

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
Roschen Premium Quality Button Bits:
Roschen Button Bits range covers hole diameter 3" and upwards upto 24". Roschen DTH Button Bits are available for all Major DTH Hammer Brands.
DHD-3.5, Cop-34, M-30, A34-15
Panther, DHD -14, DH4, DHD-4,DHD-34OA, Cop-42, Cop-44, Mission 40, SD-4, QL-4, Secoroc-4", Numa-4
DHD-16, DHD-160, DHD-360, QL-60, Mission 60, SD-6, Cop-62,Cop-64,Secoroc-6", Numa-6"
SD-8, DHD-380, COP-84, SECOROC-8", NUMA-8, Mission 80
SD-10, NUMA-100
SD-12, NUMA-120
Special Features:
1. Computer analysis and laboratory trials have been used to optimize the number of buttons as well as their size and positioning throughout the bit front.
2. Carbide has been carefully designed to minimize the risk of button loss and button failure
3. The design of the bit body and the frontal sludge grooves provides uniform flushing with reduces steel wash on both bit and the hammer.
4. Material processes and multiple heat treatment have focussed on achieving maximum resistance to fatigue failure.
5. Special bit designs such as Concave and Convex/CB are available on request.
Product specifications:
For 5" hammer
DTH bits shankBit Dia.No.
Air HolesGauge
ButtonsFront
ButtonsWeight
(Kg) Part No.mminchDHD350R/COP541335 1/4"27xφ166xφ1415DHD350-1331405 1/2"27xφ187xφ1416DHD350-1401465 3/4"28xφ187xφ1417DHD350-1461526"28xφ188xφ1417.5DHD350-1521656 1/2"28xφ188xφ1618.5DHD350-165SD51335 1/4"27xφ166xφ1415.5SD5-1301405 1/2"27xφ187xφ1416SD5-1401465 3/4"28xφ187xφ1416.5SD5-1461526"28xφ188xφ1417SD5-1521656 1/2"28xφ188xφ1619SD5-165QL501335 1/4"27xφ166xφ1415.5QL50-1301405 1/2"27xφ187xφ1416QL50-1401465 3/4"28xφ187xφ1416.5QL50-1461526"28xφ188xφ1417QL50-1521656 1/2"28xφ188xφ1619QL50-165Mission501335 1/4"27xφ166xφ1412.5M50-1301405 1/2"27xφ187xφ1413.5M50-1401465 3/4"28xφ187xφ1414M50-1461526"28xφ188xφ1414.4M50-1521656 1/2"28xφ188xφ1615M50-165
ROSCHEN hammer bit 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...
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
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