DTH HAMMER BITS
DTH Hammer Bits Down The Hole for Water Well, Mineral Exploration
Drilling
Roschen is a world class manufacturer of percussion drilling
products. With over 30 years experience, our commitment to
excellence ensures a reliable product that will perform every time.
We utilize the latest technologies in engineering to produce
cutting edge designs. We use methods that meet aerospace standards
in manufacturing superior quality hammers and bits.
We take pride in being one of the only truly Custom Bit
manufacturers. We manufacture thousands of different configurations
based on our customers specifications. We have one of the largest
stocking selections of bits in the Rollwell. We are one of the only
manufacturers that can machine sizes ranging from 2-3/4" – 42" and
can produce industry standard shanks. We have achieved and adhere
to the strict standards set forth to us by the ISO 9001:2008 and
are currently on track to go to the next level ISO 9001:2015 by the
summer of 2017. We offer an extensive range of high quality, USA
made tungsten carbide grades, shapes and sizes, as well as diamond
enhanced buttons.
Bit Enhancements:
1. Ask one of our sales team today about how to increase your bit's
performance.
2. Upgrade to premium inserts when drilling in hard formations for
longer wear life.
3. Protect the gage row by adding wear pads to your bits. This will
extend the wear life of your bit and maintain hole diameter.
4. Prevent burying your bit by adding backreaming buttons,
specifically effective in softer formations.
STANDARD SHANKS AVAILABLE
| BIT SIZE | HAMMER MODEL | RPM | WEIGHT ON BIT (LBS) |
| 2-3/4" – 3-1/4" | BR2 | 20 – 60 | 1500 – 1625 |
| 3-1/2″ – 3-5/8″ | 3015, XL3, MACH 30/33, BR3, IR3.5 | 20 – 60 | 1750 – 2000 |
| 4″ – 5-1/8″ | SD4, QL4, IR340, COP42, MACH44, ED4, MD4 | 20 – 45 | 2000 – 2500 |
| 5″ – 5-1/8″ | SD5, QL5, IR350, MACH50 | 15 – 40 | 2500 – 3000 |
| 5-1/4″ – 5-3/4″ |
| 6″ – 6-1/2″ | SD6, QL6, IR360, COP62, MACH60 | 12 – 40 | 3000 – 5000 |
| 7″ |
| 7-1/4″ – 7-1/2″ |
| 7-7/8″ – 10″ |
| 7-3/8″ – 8″ | SD8, QL8, IR380, MACH80 | 10 – 30 | 3500 – 6125 |
| 8-1/2″ |
| 8-3/4″ |
| 8-7/8″ – 9″ |
| 9-7/8″ – 12-1/4″ |
| 9-7/8″ – 10-1/4″ | SD10, IR310, NUMA100 | 10 – 25 | 5000 – 6375 |
| 10-1/2″ – 11-7/8″ |
| 11-7/8″ – 12-3/4″ |
| 11-7/8″ – 12″ | SD12, QL120, IR112, EEI-12000, NUMA120, NUMA125 | 5 – 25 | 6000 – 8750 |
| 12-1/4″ – 12-1/2″ |
| 13″ |
| 14″ |
| 15″ |
| 17-1/2″ |
| 17″ – 20″ | SD15, IR112S | 5 – 15 | 8500 – 10000 |
| 18″ – 22″ | SD18, N180 | 5 – 15 | 9000 – 11000 |
| 22″ – 42″ | N240, QL200, QL200S | 5 – 15 | 11000 – 21000 |
| ROSCHEN DTH bits Specifications |
| Hammer Size | Bits diameter | Shank | ROSCHEN CODE |
| Metric | Inch |
| 1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 | ROS 11 |
| 2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 | ROS 22 |
| 3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 | ROS 32 |
| M30/DHD3.5/BR3 | ROS 34 |
| 4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 | ROS 42 |
| SD4/M40/QL40 | ROS 44 |
| 5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 | ROS 52 |
| SD5/M50/QL50/BR5 | ROS 54 |
| 6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 | ROS 62 |
| M60/QL60/Bulroc BR6 | ROS 64 |
| 8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 | ROS 82 |
| QL80/M80/M85 | ROS 84 |
| 10" | 254mm-380mm | 10"-15" | SD10 | ROS 100 |
| NUMA100 |
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12 | ROS 120 |
| NUMA120/NUMA125 |
| Notes: Any special size of DTH bits will be available by requests. |
| Metzke, Remet thread is available! |
NOTE: The above diameters are the most common size range for the
specified hammers. Please call for other size quotes. We specialize
in making custom-sized bits, and will consider most requests.
FAQ
The information about dth drill bit you may like to know before
order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or
by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before
shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours
(Holidays Excluded)
b. Technical Support will be available in any time
6. Quality & Service:
A. There will be strict inspection and testing for every order
before shipping out.
B. Our sales team and Technical Support will response for your
question within 24 hours through skype: ROSCHEN.TOOL and
WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused
or our product quality; Not satisfied with a refund.
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
http://www.roschengroup.com
