DOWN-THE-HOLE HAMMERS
DTH(Down the Hole) hammer is used for drilling holes through a wide range of rock types, the variety of which continues to extend well beyond the original conception of early blast hole drilling.
Down-the-Hole refers to where the hammer action occurs when compared to drifter hammers, which hammer on top of the drill string. The DTH hammer piston always makes direct contact with the drill bit and there is generally no loss of transmitted energy as the hammer drills deeper, as is the case with drifter (top hammer) rigs.
Roschen offers a wide range of DTH hammers suitable for a variety of drilling operations. Our Down the Hole hammers provide the most versatile and cost effective rock drilling method.
Roschen DTH hammers transmit intensive impact energy with low energy loss. This results in good rock breakage, high penetration rates and high productivity. The equipment is designed to give optimal hole quality, reliability, and long service life, as well as the best blasting results and low total operation cost.
Roschen hammers are flexible, and designed to work with various industry-standard shank designs and a wide range of standard size hammers. Whatever your application, Sandvik has the solution to match your requirements.
Advantages:
1. Advanced hammer designs with high power and air efficiency increases productivity
2. Tailored product offering covers all your applications and conditions
3. Easy service and maintenance designs reduces machine downtime
4. Generic and proprietary shank options give you flexibility and reliability
Roschen 4" and 5" hammer series
With years of industry experience, Roschen's tried and tested hammers are based on a well-proven design. A good example of this is the range of 4" and 5" hammers with patented features for optimized energy efficiency, high impact and productivity in variable ground conditions.
IR DHD/COP shank products specifications:
Model: IR DHD3.5, DHD340, DHD350R, DHD350Q, DHD360, DHD380, DHD1120
COP32, COP34, COP44, COP54, COP64, COP62, COP84
| |
DHD3.5 |
DHD340 |
DHD350 |
DHD360 |
DHD380 |
DHD1120 |
| Length(less bit) |
930mm |
1030mm |
1214mm |
1248mm |
1502mm |
1880mm |
| Weight (less bit) |
25.0kg |
39.0kg |
76.5kg |
100.0kg |
290.0kg |
474.0kg |
| External diameter |
82mm |
99mm |
125mm |
142mm |
225mm |
275mm |
| Bits shank |
DHD3.5 |
DHD340
COP44 |
DHD350R
COP54 |
DHD360
COP64 |
DHD380
COP84 |
DHD1120 |
|
| Bits diameter |
90-110mm
3 1/2"- 4 5/16" |
105-130mm
4 1/8" - 5 1/8" |
135-155mm
5 1/8" - 6 1/8" |
152-203mm
6" - 8" |
200-279mm
7 7/8" - 11" |
305-381mm
12" - 15" |
|
|
|
| Connection thread |
API 2 3/8" Reg |
API 2 3/8" Reg |
API 2 3/8" Reg
API 3 1/2" Reg |
API 3 1/2" Reg |
API 4 1/2" Reg |
API 6 5/8" Reg |
|
| Air pressure |
1.0-1.5 Map |
1.0-2.5Mpa |
1.0-2.5Mpa |
1.0-2.5Mpa |
1.0-2.5Mpa |
1.0-2.5Mpa |
ROSCHEN DTH hammer technical data:
| 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: |
| Metzke, Remet thread is available! |
| Any special typ shank of DTH Hammer will be available by requests. |
Other shank can be available:
3.5" hammer, shank: DHD3.5 / Bulroc BR3 / M30 /Mach303
4" hammer, IR DHD340A / SD4 / COP44 / QL40 / Bulroc BR4 / M40 / Mach44 shank
5" hammer, IR DHD350R / SD5 / COP54 / Bulroc BR5 / QL50 / M50 /Mach50 shank
6" hammer, IR DHD360 / SD6 / COP64 / Bulroc BR6 / QL60 / M60 shank
8" hammer, IR DHD380 / SD8 / COP84 /QL80 shank
10" hammer, SD10 / Numa100 shank
12" hammer, IR DHD1120 / SD12 / Numa120 / Numa125 shank
15" hammer, SD15 shank
We can also provide related products DTH button bits, ODEX, symmetric overburden systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc
Quality warranty:
Our hammers are made of high quality steel and all spares are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally, Production time is 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: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core barrel, casing, drill rod, SPT equipment, Shelby sampler, drill rig and other drilling parts.
They are used for mineral exploration, geological drilling, geotechnical engineering and soil sampling.
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
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