DTH Drill Bit DHD380-203
Product Description
DTH Hammer Bits DHD380-203
| CODE NO. |
DHD380-203 |
| Shank type |
DHD380 |
| Diameter |
203 |
| air holes |
2 |
| gauge buttons |
10 |
| face buttons |
14 |
| Bit face type |
Convex face |
| carbide design |
Dome |
DHD Shank Type DHD380-203 DTH Hammer Bit with concave face, dome buttons for blasting bore holes, water well drilling.
Shank types: DHD3.5, DHD340A, DHD350R, DHD360, DHD380.
DTH bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-305mm)
ROSCHEN is rock drilling tools manufacture, we has a comprehensive range of DTH drill bits with DHD shanks type for a wide range of hole sizes, which have been designed to match all conceivable applications for stone quarrying, water well industries, mining and construction.
Concave Face
The all around application rock drill bit face designed specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.
Dome/Hemispherical Buttons
Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.
Roschen Hammer Bits or DTH Button Bits range in size from 2" hole diameter upwards (50.1mm) to 36" (914.4mm). Roschen always supply stocks DTH Hammers and DTH Button bits for all major DTH Hammer brands and shanks.
When percussion or hammer drilling your choice of hammer bit is just as important as your choice of down hole hammer. DTH stands for "down the hole". When hammer drilling, the hammer bit gets its energy from repetitive striking of a pneumatic down hole hammers piston. This hammering with slow rotation drives the hammer bit gradually through ground formations. DTH hammer bits are most commonly used in percussion rotary air blast drilling, mining blast holes, and mineral exploration and water well drilling industries.
The cutting interface of the DTH hammer bits are loaded with high quality tungsten carbide, which is an extremely hard material. Since hammer bits work with air pressure delivered to the down hole hammer, it is important to use the recommended pressure provided when hammer drilling. Down hole hammer bits come with a wide variety of carbide styles. The sharper the point, the softer formation it is used for. The different styles of carbides on the hammer face include dome, cone and ballistic tungsten carbide inserts which are press fit into the DTH bit.
Total Product specifications:
For 3" hammer
DTH bits shank |
Bit Dia. |
No. Air Holes |
Guage Buttons |
Front Buttons |
Weight(kgs) |
Part No. |
| mm |
inch |
| COP32 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
4.2 |
COP32-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4.5 |
COP32-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.7 |
COP32-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
5 |
COP32-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.3 |
COP32-105 |
| BR3 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
3.8 |
BR3-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4 |
BR3-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.3 |
BR3-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
4.8 |
BR3-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.2 |
BR3-105 |
| DHD3.5/COP34 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
4.2 |
DHD35-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4.5 |
DHD35-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.8 |
DHD35-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
5 |
DHD35-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.5 |
DHD35-105 |
| QL30 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
4.5 |
QL30-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4.7 |
QL30-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.9 |
QL30-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
5 |
QL30-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.5 |
QL30-105 |
ROSCHEN hammer bit technical data:
| 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: |
| Metzke, Remet thread is available! |
| Any special size of DTH bits will be available by requests. |
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.
ROSCHEN Manufacturing workshop
ROSCHEN Packing workshop
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:
web site: roschen.en.made-in-china.com
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