China M40 Mission40 DTH Hammer Without Foot Valve

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.
4" DTH hammer specifications:
Model: DHD340, COP44, SD4, M40, QL40
DHD340
COP44SD4M40QL40Length(less bit)1030mm1084mm1005mm1097mmWeight (less bit)39kg40.5kg40.0kg41.00kgExternal diameter99mm99mm99mm99mmBits shankDHD340
COP44SD4Misson40QL40Bits diameter105-130mm
4 1/8" - 5 1/8"105-130mm
4 1/8" - 5 1/8"105-130mm
4 1/8" - 5 1/8"105-130mm
4 1/8" - 5 1/8"Connection threadAPI 2 3/8" RegAPI 2 3/8" RegAPI 2 3/8" RegAPI 2 3/8" RegAir pressure1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
ROSCHEN RC hammer technical data:
ROSCHEN DTH Hammers SpecificationsHammer SizeBit ShankROSCHEN CodeConnection ThreadSuitable bitWorking pressureAir consumption2"BR2ROS 11
ROS 22 RD50 box¢70-¢90mm0.7-1.75Mpa0.7Mpa4.5m3/min1.0Mpa4m3/min1.4Mpa5m3/min3"DHD3.5ROS 32API 2 3/8" Reg¢90-¢110mm1.0-1.5Mpa1.0Mpa4.5m3/minCOP32/COP34M301.5Mpa9m3/min4"DHD340ROS 34API 2 3/8" Reg¢110-¢135mm1.0-2.5Mpa1.0Mpa6m3/minCOP44QL40SD41.8Mpa10m3/minM402.4Mpa15m3/min5"DHD350ROS 52
ROS 54API 2 3/8"Reg/API 3 1/2" Reg¢135-¢155mm1.0-2.5Mpa1.0Mpa9m3/minCOP54QL50SD51.8Mpa15m3/minM502.4Mpa23m3/min6"DHD360ROS 62
ROS 64API 3 1/2" Reg¢155-¢190mm1.0-2.5Mpa1.0Mpa10m3/minCOP64QL60SD61.8Mpa20m3/minM602.4Mpa28.5m3/min8"DHD380ROS 82
ROS 84API 4 1/2" Reg¢195-¢254mm1.0-2.5Mpa1.0Mpa15m3/minCOP84QL801.8Mpa26m3/minSD82.4Mpa34m3/minM80/M8510"SD10ROS 100API 6 5/8" Reg¢254-¢311mm1.0-2.5Mpa1.0Mpa22m3/minNuma1001.8Mpa40m3/minROS 1002.4Mpa55m3/min12"DHD1120ROS 120API 6 5/8" Reg¢305-¢445mm1.0-2.5Mpa1.0Mpa30m3/minSD121.8Mpa56m3/minNuma1202.4Mpa78m3/minNotes: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 / COP32 / QL30 / 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
Product photos

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: 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