Numa 120 Numa125 DTH Hammers and Bits For America Down The Hole
Drilling
Numa 120 Numa125 DTH Hammers and Bits
ROSCHEN DTH hammer and bits are compatible with CIR, DHD, QL, SD,
Mission, etc. Series of Atlas and Secoroc etc.
They are with high efficiency, low failure rate and long service
life. Even for all kinds of high hardness, high abrasive rocks and
other harsh conditions, our drilling tools can also realize
efficient and economical drilling.
Down-the-hole (DTH) bits are used with Down-the-hole hammers for
drilling holes through a wide range of rocks types. In conjunction
with DTH hammers, drill hammer bits are designed with a splined
drive for rotating the bit in the ground. Drill bits are available
in different sizes and different styles so they can drill a wide
range of hole sizes.
| Numa shank Bits | Bit Dia. | No. | Gauge | Front | Weight | Part No. |
| mm | inch | Air Holes | Buttons | Buttons | (Kgs) |
| Numa100 | 254 | 10" | 3 | 12×φ18 | 20×φ16 | 90 | Numa100-254 |
| 305 | 12" | 4 | 12×φ18 | 36×φ18 | 102 | Numa100-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 104 | Numa100-311 |
| 318 | 12 1/2" | 4 | 12×φ18 | 38×φ16 | 106 | Numa100-318 |
| 330 | 13" | 4 | 14×φ18 | 42×φ16 | 112 | Numa100-330 |
| Numa120 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 152 | NUMA120-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 158 | NUMA120-311 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 165 | NUMA120-330 |
| 356 | 14" | 4 | 16×φ19 | 48×φ16 | 178 | NUMA120-356 |
| 381 | 15" | 4 | 16×φ19 | 48×φ18 | 195 | NUMA120-381 |
| Numa125 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 170 | NUMA125-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 173 | NUMA125-311 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 182 | NUMA125-330 |
| 356 | 14" | 4 | 16×φ19 | 48×φ16 | 191 | NUMA125-356 |
| 381 | 15" | 4 | 16×φ19 | 48×φ18 | 200 | NUMA125-381 |
Shank can be available:
1. Diameter 64mm-70mm shank Bulroc BR1
2. Diameter 70mm-95mm shank Halco MACH20, Bulroc BR2
3. Diameter 90mm-102mm shank COP32, COP34, Halco MACH303, M30,
DHD3.5, Bulroc BR3
4. Diameter 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4,
M40, QL40, Bulroc BR4
5. Diameter 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50,
SD5, M50, QL50, Bulroc BR5
6. Diameter 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc
BR6
7. Diameter 203mm-330mm shank COP84, DHD380, SD8, QL80
8. Diameter 254mm-380mm shank SD10, Numa100
9. Diameter 305mm-508mm shank DHD1120, SD12, N120, N125
10. Diameter 405mm-864mm shank SD15, SD18
11. VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...
We can also provide related products DTH hammers, ODEX system,
symmetric systems, slide block drilling systems, etc and DTH
drilling pipes for various thread API REG, API IF, BECO, etc.
| 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! |
| 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! |
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 10-15 days
Transportation:
By air, By Express or By sea according to your 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
