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High Air Pressure DTH Hammer D25A Down The Hole Hammer For Blast Hole Drilling

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High Air Pressure DTH Hammer D25A Down The Hole Hammer For Blast Hole Drilling

Country/Region china
City & Province shanghai shanghai
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Product Details

High Air Pressure DTH Hammer HD25A



High Air Pressure DTH Hammer D25A Down The Hole Hammer For Blast Hole Drilling


 

DOWN THE HOLE DRILLING HAMMERS

 

DTH 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.

 

Basic Info
Model NOHD25A-match Bit Shank Model HD25
TypeRotary Drilling Rig
Power TypePneumatic
TrademarkROSCHEN
SpecificationSGS ISO
HS Code84123100
UsageCoal, Ore, Water Well
ConditionNew
DTH Hammer 




D25A DTH Hammer (D25)

 

Introduction:
 

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. high Air Pressure without foot value DTH Hammers.
 


Features: 

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.



Specifications:
 

HD25A DTH Hammer Technical Parameters
Length (exclude bit)Weight (exclude bit)External DiameterBit ShankHole RangeConnection Thread
872 mm16.00 kgΦ71 mmRS25Φ76 mm ~ Φ90 mmT42 x 10 x 1.5
Working PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption
1.0 MPa1.5 MPa
1.0~1.5 MPa25 Hz22-35 rpm4 m³/min6 m³/min


 
 

DTH hammers Specifications
Hammer SizeBit ShankROSCHEN CodeConnection ThreadSuitable bitWorking pressureAir consumption
2"BR2ROS 11  ROS 22RD50 box¢70-¢90mm0.7-1.75Mpa0.7Mpa4.5m3/min
1.0Mpa4m3/min
1.4Mpa5m3/min
3"DHD3.5ROS 32API 2 3/8" Reg¢90-¢110mm1.0-1.5Mpa1.0Mpa4.5m3/min
COP32/COP34
M301.5Mpa9m3/min
4"DHD340ROS 34API 2 3/8" Reg¢110-¢135mm1.0-2.5Mpa1.0Mpa6m3/min
COP44
QL40
SD41.8Mpa10m3/min
M402.4Mpa15m3/min
5"DHD350ROS 52  ROS 54API 2 3/8"Reg/API 3 1/2" Reg¢135-¢155mm1.0-2.5Mpa1.0Mpa9m3/min
COP54
QL50
SD51.8Mpa15m3/min
M502.4Mpa23m3/min
6"DHD360ROS 62  ROS 64API 3 1/2" Reg¢155-¢190mm1.0-2.5Mpa1.0Mpa10m3/min
COP64
QL60
SD61.8Mpa20m3/min
M602.4Mpa28.5m3/min
8"DHD380ROS 82  ROS 84API 4 1/2" Reg¢195-¢254mm1.0-2.5Mpa1.0Mpa15m3/min
COP84
QL801.8Mpa26m3/min
SD82.4Mpa34m3/min
10"SD10ROS 100API 6 5/8" Reg¢254-¢311mm1.0-2.5Mpa1.0Mpa22m3/min
Numa1001.8Mpa40m3/min
ROS 1002.4Mpa55m3/min
12"DHD1120ROS 120API 6 5/8" Reg¢305-¢445mm1.0-2.5Mpa1.0Mpa30m3/min
SD121.8Mpa56m3/min
Numa1202.4Mpa78m3/min
Notes: Metzke, Remet thread is available!




 

For more information please contact:



 

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

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

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

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.net ; http://www.roschen.cn

 

http://www.roschen.com ; http://www.roschengroup.com

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