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High Air Pressure Without Foot Vlave DTH Drill Hammer Ql60A For Down Hole Hammer Drilling

High Air Pressure Without Foot Vlave DTH Drill Hammer Ql60A For Down Hole Hammer Drilling
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Model: Down The Hole Hammer, DTH Hammer
Use: Down The Hole Drilling, DTH Drilling
Name Item: Water Well Drilling Equipment
Materials: High Manganese Steel
Machine: Hydraulic Crawler Drill Rig
Usage: Mineral Drilling, Exploration Core Drilling
Tools: Down The Hole Drilling Tools
Type: CIR, DHD, QL,SD, Mission, COP Series DTh Hammer
High Light:

dth drilling tools


down hole tools

Basic Infomation
Place of Origin: GERMANY,CHINA
Brand Name: ROSCHEN
Certification: ISO,CE
Model Number: ROS64
Payment & Shipping Terms
Packaging Details: Wooden Box
Supply Ability: 20000pcs
Product Description

High Air Pressure Without Foot Vlave DTH Drill Hammer Ql60A

High Air Pressure Without Foot Vlave DTH Drill Hammer Ql60A For Down Hole Hammer Drilling


Down The hole hammer:

High pressure Down The hole hammer


Roschen has middle pressure, high pressure down the hole hammer, which is a true high-speed, high-efficiency down the hole hammer application of modern design theory, through computer simulation, design of high efficiency, high life, low consumption submersible impact ;  

High wind pressure (0.56-2.46Mpa) into high impact energy, in order to achieve unprecedented high perforation speed; due to the simple structure, improve component life and reduce maintenance workload and maintenance costs.  


Basic Information:
Model NO QL6A-Match bit shank QL60
Condition New
Mining Object Mining
Transport Package Poly Wood
Origin Germany China
Usage Coal, Ore, Water Well
Power Type Pneumatic
Trademark ROSCHEN
Specification ISO,CE
HS Code 8412310090



High air pressure DTH Hammer without footvalve, which has been one of the most advanced DTH Hammers in the world is our own design.


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.

Technical Parameters of Down The Hole Hammers: 

Length (exclude bit) Weight (exclude bit) External Diameter Bit Shank Hole Range Connection Thread
1183 mm 92.00 kg Φ146 mm QL60 Φ155mm~Φ203mm 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 25 Hz 20-30 rpm 9 m³/min 18 m³/min 26 m³/min

High Air Pressure Without Foot Vlave DTH Drill Hammer Ql60A For Down Hole Hammer Drilling 0


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!

For more information please contact:





WeChat: +86-137 6419 5009 ; +86-135 8585 5390

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Contact Person : Bill, George, Michael
Tel : 8613764195009
Fax : 86-021-54380177
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