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M5A Mission 50 down the hole hammer drilling Ideal for Drilling Hole Equipment
  • M5A Mission 50 down the hole hammer drilling Ideal for Drilling Hole Equipment
  • M5A Mission 50 down the hole hammer drilling Ideal for Drilling Hole Equipment

M5A Mission 50 down the hole hammer drilling Ideal for Drilling Hole Equipment

Place of Origin GERMANY CHINA
Brand Name ROSCHEN
Certification ISO,CE
Model Number ROS54
Product Details
Donw The Hole Hammer
Secoroc COP Hammer
Down The Hole Drilling, DTH Drilling
Hydraulic Crawler Drill Rig
Water Well Drilling
Down The Hole Drilling Tools
Surface Ground Core Drill Rig
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dth drilling tools


down hole tools

Payment & Shipping Terms
Minimum Order Quantity
Packaging Details
Wooden Box
Supply Ability
Product Description

M5A DTH Hammer (M5)

M5A DTH Hammer Mission 50 Down The Hole Hammer Ideal for Drilling Hole Equipment


DTH Hammer


The Down The Hole Hammer is an integral part of the submersible drilling rig and belongs to the working device of the downhole drilling rig. DTH Hammer are divided into low-pressure submersible impacters, stroke pressure dive impacters and high pressure dive impacters.


Widely used in metallurgy, coal, chemical, building materials are not busy mines and water conservancy, hydropower, roads, railways, defense, construction and other projects into the hole, suitable for dry and wet operation hole water wind and water mixture, and borehole gushing wet operation, reliable performance, is now the ideal drilling hole equipment.


The working principle of the impact: the beginning of the impact of the stroke, the piston and the valve are in the extreme position, the pressure through the valve cover and the seat of the radial hole into the cylinder chamber, pushing the piston high-speed downward movement impact drill. When the piston row to the bushing of the spline groove is closed, the lower chamber pressure began to rise, so the upper end of the piston hole out of the air column, so that the upper cavity through the atmosphere, the pressure is reduced, the end of the working stroke. When the piston after the impact of the tail of the drill, the valve due to its upper and lower pressure effect, the commutation, the piston repeated return stroke movement.


Basic Info
Model NO M5
Mining Object Mining
Origin Germany,China
Type Drilling Machine
Trademark ROSCHEN
HS Code 84123100
Mining Object Mining, Ore Machinery, Stone Quarry
Usage Use Together with DTH Button Bits
Aplication DTH Drilling. Coal Mining, Quarry
Drill Diameter 65-305mm
Transport Package Ply wood Box




Product Description: 

It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.


It has the following advantages:

1. Out of the trouble of foot valve fracture and expansion and contraction.

2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.

3. Simple structure, reliable parts, long life, easy and cheap maintenance.

4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.


Length (exclude bit) Weight (exclude bit) External Diameter Bit Shank Hole Range Connection Thread
1110 mm 68.50 kg Φ125 mm HM5 Φ135mm ~ Φ155mm API 2 3/8'' Reg
API 3 1/2'' Reg
Working Pressure Impact rate at 0.5 MPa Recommended Rotary Speed Air Consumption
1.0 MPa 1.8 MPa 2.4 MPa
1.0 ~ 2.5 MPa 28 Hz 20 ~ 35 rpm 7 m³/min 14 m³/min 19 m³/min


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
M30 1.5Mpa 9m3/min
4" DHD340 ROS 34 API 2 3/8" Reg ¢110-¢135mm 1.0-2.5Mpa 1.0Mpa 6m3/min
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
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
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
QL80 1.8Mpa 26m3/min
SD8 2.4Mpa 34m3/min
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!



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