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High pressure Down The Hole Drilling 5 inch DTH hammer DHD350R for rock formation

$1000-2000 per set
High pressure Down The Hole Drilling 5 inch DTH hammer DHD350R for rock formation
Features Gallery Product Description Request A Quote
Model: Down The Hole Hammer
Mining Object: Mining, Ore Machinery, Stone Quarry
Usage: Use Together With DTH Button Bits
Model No: DHD360, QL60, SD80, COP64, COP84
Series No: SD, ROS, COP, BR, DHD, Mission
Materials: High Carbon Steel
Application: DTH Drilling. Coal Mining, Quarry
Drill Diameter: 65-305mm
Machine: Hydraulic Crawler Drill Rig
Drilling: Down The Hole Drilling, DTH Drilling
Tools: Top Hammer Drilling Tools
HS Code: 82071990
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5inch DTH Hammer


DHD350R dth hammers and bits


DHD3.5 DTH Hammer

Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: ISO,CE
Model Number: DHD350
Payment & Shipping Terms
Packaging Details: wooden box
Supply Ability: 100 per month
Product Description


High pressure Down The Hole Drilling 5 inch DTH hammer DHD350R for rock

DTH hammer, DHD hammer, COP hammer, QL hammer, SD hammer, Mission hammer, BR Hammer, Halco hammer
Roschen Down The Hole Hammer and Down The Hole Hammer bits quality can be replaced of by Halco, atlas copco basis on the quality grade, and in the after sales service.


  1. 3" DTH hammer: DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303,
  2. 4" DTH hammer: DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44,
  3. 5" DTH hammer: DHD 350 / COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5,
  4. 6" DTH hammer: DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6,
  5. 8" DTH hammer: DHD380, QL 80, SD 8, Mission 80,

Down the hole hammers Introductions: 
1) High pressure series
2) Medium pressure series
3) Low pressure series
4) Reverse circulation series

1. For DTH Bits, Various low pressure and high pressure DTH bits are available.   
2. Low pressure DTH Bits diameter ranges from 66mm to 205mm, are used to equip with our JQ series low pressure hammers. Other low pressure DTH bits are available too upon customer's shank drawing or samples.   
3. High pressure DTH Bits diameter ranges from 76mm to 305mm. 
4. Mainly used in Rock drilling, mining, water well drilling, and other construction
5. All the products are manufactured as per the international standard and well compatible with the brand of Atlas Copco, Mission, Ingersoll-Rand, Halco etc.


  1. DHD340A, DHD350R, DHD360, DHD380;  
  2. Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;  
  3. Mission 40, Mission 50, Mission 60, Mission80;  
  4. SD4, SD5, SD6, SD8;  
  5. QL40, QL50, QL60, QL80;  
  6. BR2, BR3. …. 
  7. DTH Hammer:  
  8. DTH hammer sizes: 3”, 3.5”,4”,5”,6”,8”; 
  9. DTH hammer shank styles: DHD3.5, DHD340, DHD350, DHD360, DHD380, SD4,
  10. SD5, SD6, SD8, Mission40, Mission50, Mission60, Mission80                                                 
  11. Outside diameters: 61 ~ 275mm
  12. Drilling diameter: 68 ~ 508mm

Type and Technical Specification of High Pressure DTH Hammers

Item 330 335 340 345 350 355 360 380 3120

Drilling Dia.


82-85 90-93 105-130 105-130 130-152 130-152 152-305 203-350 302-508
Hammer Length(mm) 867 908 1052 1034 1387 1220 1450 1551 1934

Outside Dia.


71 81 92 98 114 124 136 181 275
Weight(kg) 19 21.8 38 39 69 74 126 277 642
Working Pressure(Mpa) 0.8-2.1 0.8-2.1 0.8-2.1 0.8-2.1 0.8-2.1 0.8-2.1 0.8-2.1 0.8-2.1 0.8-2.1

Air Consumption


3-12 4.3-14.2 3.5-18 3.5-15 5.7-18 6.5-18 8.5-25 12-31 14-45
Torque(N. M) 150 205 304 335 590 700 822 1560 2410


Frequency (Times/Min)

800 950-1500 800 800 810-1470 810-1500 820-1475 860-1510 980-1446
Connection 1 48.8- 4.2 API 2-3/8 API 2-3/8 API 2-3/8 API 3-1/2 API 2-3/8 API 3-1/2 API 4-1/2 API 6-5/8
Connection 2 47-6 53-8 64-8 64-8 84-8 84-8 99.5-8 128-10 184-8


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
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
Metzke, Remet thread is available!
Any special typ shank of DTH Hammer will be available by requests.

Using Functions:  

Our down-the-hole (DTH) hammer is a new type of valveless hammer driven by compressed air. It is the ideal rock drilling tool with advantages of large impact energy, high penetration rate, long service life, good efficiency of drilling cuttings removal, easy operation, and reliable working performance.   

They are suitable to use in:  

1. Drilling blasting holes, drainage and ventilating holes, center holes of raising boring, deep blasting holes in traditional drilling and blasting method of raising, pipe holes and other deep holes in all of various strength rocks in open pit and underground mining. 

2. Drilling holes in road cutting and other stone constructions (e. g. ports and hydroelectric station constructions, etc.).  

3. Drilling water wells, exploratory boreholes and injected holes.   

This hammer can work with dry dust collection and also with wet dust removal using mixture of air and water.    

The specific DTH hammers as follow:  
TS series----for deep hole and super deep hole drilling  
TG series----for drying drilling  
TH series----for wet drilling  

All our Hammers can be easily adapted to accept different types of bit shanks as COP, BR, DHD, SD, XL QL, MACH, Halco and Mission by simply changing a few basic components. Several models are available in Heavy-Duty format to suit particularly arduous and abrasive drilling conditions. 



For more information please contact:



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

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

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Tel : 13764195009
Fax : 86-021-54380177
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