Down The Hole Hammer SD8 Hammer Rock Drilling / Tunnel Engineering Down Hole Tools
Down The Hole Hammer SD8 Hammer Rock Drilling / Tunnel Engineering Down Hole Tools
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Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: ISO9001
Model Number: CIR110A
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Down Hole Tools


down hole hammer


SD8 Hammer

Payment & Shipping Terms
Packaging Details: Plywood Case
Payment Terms: L/C, T/T, Western Union, MoneyGram
Name: Down The Hole Drill Hammer
Tools: Down Hole Tools
Scope Of Application: Open Rock Drilling, Tunnel Engineering
Hole Drilling Speed(mm/min): 840 (mm/min)
Size (mm): 180mm DTH Hammer
Impact Frequency: 840(Hz)
Model: SD8 DTH Hammer
Series No: Secoroc COP84 DTH Hammer
Product Description

Down The Hole Drill Hammer / Tunnel Engineering Down Hole Tools


Down The Hole Hammer SD8 Hammer Rock Drilling / Tunnel Engineering Down Hole Tools


Down The Hole Drill Hammer Introduction


Reverse Circulation RC drilling hammers and hammer drill bits provide outstanding performance along with outstanding reliability and simplicity. Our reverse circulation hammers are suitable for any exploration and grade control process to obtain an accurate sample with no contamination. RC drilling hammers can in most instances carry out continuous sample collection in a fraction of the time necessary with conventional or wireline coring.


Down The Hole Drill Hammer Specification Dimensions 


ROSCHEN DTH Hammers Technical 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
Numa 120 2.4Mpa 78m3/min
15" Numa 150 ROS 150 API 6 5/8"Reg ¢530mm-¢660mm 1.0-2.5Mpa 1.0Mpa 30m3/min
DHD1150 1.8Mpa 56m3/min
QL150 2.5Mpa 78m3/min
18" Numa 180 ROS 180 API 6 5/8"Reg ¢600mm-¢860mm 1.0-2.5Mpa 1.0Mpa 30m3/min
DHD1180 1.8Mpa 56m3/min
QL180 2.5Mpa 78m3/min
24" Numa 240 ROS 240 API 6 5/8"Reg ¢775mm-1000mm 1.0-2.5Mpa 1.0Mpa 30m3/min
QL 240 1.8Mpa 56m3/min
SD 24 2.5Mpa 78m3/min
Any Spline is available
API, Metzke, Remet , Fabe thread is available!
Any special typ shank of DTH Hammer will be available by requests.


Lower Pressure DTH Hammer Specification
Model Drill Hole Dia. (mm) Casing OD (mm) Length (mm) Weight (kg) Work pressure (MPa) Air consumption (m3/min) Impact frequency (T/min)
65A DTH Hammer Ø65-67 61 745 13 0.5-0.7 2.5 ≥810
70A DTH Hammer Ø74-76 67 766 15 0.5-0.7 3 ≥810
80A DTH Hammer Ø80-82 72 796 17 0.5-0.7 5.5 ≥810
90 DTH Hammer Ø90-100 80 796 22 0.5-0.7 7 ≥840
90A DTH Hammer Ø90-100 80 796 22 0.5-0.7 6 ≥840
900 DTH Hammer Ø90-100 80 870 24 0.8-1.2 5 ≥700
930 DTH Hammer Ø90-100 80 870 24 0.8-1.2 6 ≥700
110A DTH Hammer Ø110-120 98 838 36 0.5-0.7 11 ≥840
DHD340 DTH Hammer Ø110-140 98 1045 39 1.2-2.0 3.5-15 ≥1140
DHD350 DTH Hammer Ø135-155 122 1213 57 0.6-2.5 7.5-9 ≥1140
DHD360 DTH Hammer Ø152-190 139 1300 98 0.6-2.5 10.5-19 ≥1140


Down The Hole Drill Hammer Details

Down The Hole Hammer SD8 Hammer Rock Drilling / Tunnel Engineering Down Hole Tools 0


CIR110A Downhole Drill Hammer Operation Precautions:

1. In normal rock drilling conditions, the hammer is serviced and cleaned and reassembled every 200 hours of operation. Drilling holes or mud slagging is performed every 100 hours.

2. The lubrication of the hammer is achieved through the oiling device on the main engine. Therefore, it is necessary to ensure that the oiling device is filled with oil before the start of each shift, and there is still a surplus before the next shift begins. The lube oil is mechanical oil No. 20 in summer and No. 5-10 mechanical oil in winter. Before the hammer is installed on the drill pipe, the exhaust valve is operated to remove the debris in the drill pipe and check whether there is oil in the drill pipe. Check the impact device after connecting.

3. The DTH Hammer and the drill rod must not be reversed in the hole to prevent accidents. In the process of drilling down the hole, if you want to stop drilling, you should not stop the air supply to the hammer immediately. You should lift the drill and blow it, and stop the gas supply when there is no more rock and rock powder in the hole. , Then stop turning.

Welcome to inquire, we will do our best to provide you with the required product information.


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Contact Person : Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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