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DTH Hammers And Button Bits DHD340A , COP44 For Down The Hole Drilling

DTH Hammers And Button Bits DHD340A , COP44 For Down The Hole Drilling

Brand Name:ROSCHEN
Certification:ISO
Model Number:COP 44
Minimum Order Quantity:1-5 PCS
Place of Origin:GERMANY
Price:Negotiate
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Location: Shanghai Shanghai China
Address: 65 EAST XINHUAN ROAD, SHANGHAI, CHINA
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COP 44 button bits

High Quality DTH hammers and button bits DHD340A,COP44 for Down The Hole Drilling


ROSCHEN DTH Bits Specifications
Hammer SizeBits diameterShankROSCHEN CODE
MetricInch
1"64mm-70mm2 1/2"-2 3/4"BR1ROS 11
2"70mm-95mm2 3/4"-3 3/4"MACH20/BR2ROS 22
3"90mm-102mm3 1/2"-4"COP32/COP34/MACH303ROS 32
M30/DHD3.5/BR3ROS 34
4"105mm-152mm4 1/8"-6"COP44/DHD340/MACH44ROS 42
SD4/M40/QL40ROS 44
5"133mm-165mm5 1/4"-6 1/2"COP54/DHD350R/MACH50ROS 52
SD5/M50/QL50/BR5ROS 54
6"152mm-254mm4 1/8"-10"COP64/DHD360/SD6ROS 62
M60/QL60/Bulroc BR6ROS 64
8"203mm-330mm8"-13"COP84/DHD380/SD8ROS 82
QL80/M80/M85ROS 84
10"254mm-380mm10"-15"SD10ROS 100
NUMA100
12"305mm-508mm12"-20"DHD1120/SD12ROS 120
NUMA120/NUMA125
Notes:
Metzke, Remet thread is available!
Any special size of DTH bits will be available by requests.

How to Selecting the right bit?

Roschen has a comprehensive range of DTH drill bits to match all conceivable applications.

Each bit is made from quality alloy steel, and has been precision machined to produce a perfect body, heat treated to the required hardness, given surface compression for fatigue resistance, and fitted with precision buttons manufactured in-house.

Five basic designs are available: Convex, Flat front, SpeedBit, Concave, and RocketBit. These are designed for specific applications for all rock types, hardness’s and conditions

Bit life and rate of penetration are the most important criteria in selecting the right bit for a particular application.

In most cases, the focus is on productivity, so the fast cuttings removal features of the SpeedBit and Convex/Ballistic designs are preferable, to ensure the buttons are cutting clean, with the minimum of recrushing.

In hard and abrasive formations, however, the flat front design offers best bit life, having strong gauge rows with large spherical buttons which are easy to regrind and maintain. The SpeedBit offers improved productivity with the same gauge as the Flat front, but with ballistic buttons in the front for faster penetration. An alternative is the Concave design with spherical buttons.

The RocketBit can be dressed with ballistic buttons for use in soft to medium hard formations where fractured rock can be expected, or can be supplied with spherical buttons for hard and abrasive formations.

Bits are manufactured to match all diameters of Secoroc hammers.


For more information, please contact:

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.com ; http://www.roschen.net

http://www.roschen.cn ; http://www.roschendrill.com

http://www.roschenmining.com ; http://www.roschendrilling.com


China DTH Hammers And Button Bits DHD340A , COP44 For Down The Hole Drilling supplier

DTH Hammers And Button Bits DHD340A , COP44 For Down The Hole Drilling

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