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Down the hole hammer drilling high air pressure dth hammer down to hole hammer dth dhd340 dhd380
| Different name： | Pneumatic DTH hammer/ air hammer |
| Main application： | for mining/well drilling/quarry/rock drilling/ blast hole drilling |
| Core specification parameters： | DHD/SD/QL/MISSION/NUMA high air pressure DTH hammer and bits |
| Applications: | Widely used in mining, quarrying, exploration, water-well, geothermal, solar and construction/geotechnical drilling projects |
Description
A down-hole hammer is a type of percussion pneumatic hammer. Inside the hammer there is a piston applying repeated percussive pressure to the bits. DTH is short for "down-the-hole" and this method is essentially a percussion mechanism followed the bit down into the hole. DTH hammer and bits are located at the end of the drill string. Once need to drill deeper, drilling tubes of different length are required to connect with DTH hammer and transfer the feed force and rotation to the hammer and bits. DTH hammers and bits are well suited for drilling into medium hard to hard rock and now are widely used in civil engineering, micro piling, well drilling projects.
According to the work pressure, DTH hamemr can be classified in three types:
Low air pressure DTH hammer such as CR90/CR110/CR150
Medium air pressure DTH hammer such as BR1/BR2/BR3
High air pressure DTH hammer that work pressure is above 10 bars
High Air Pressure DTH hammer
Common Size: from 3.5 inch to 12 inch
Large Size: from 14 inch to 24 inch (Available as client's requests)
Shank: DHD/SD/QL/MISSION/NUMA
High air pressure DTH hammer with DHD shank are very popular and suitable for many different kinds of projects such as water well drilling, mining, quarry etc.
As we have adequate stock of DHD shank DTH hammer from 3.5 inch to 12 inch in stock, a quick delivery is available to meet urgent order.
Specifications
| DHD3.5 | DHD340 | DHD350 | DHD360 | DHD380 | DHD1120 | |
| Weight | 25kg | 43kg | 78.5kg | 100kg | 190kg | 598kg |
| Diameter | Ø82mm | Ø99mm | Ø125mm | Ø142mm | Ø180mm | Ø275mm |
| Bit Shank | DHD3.5 | DHD340/COP44 | COP54/DHD350 | COP64/DHD360 | COP84/DHD380 | DHD1120 |
| Hole Range | Ø90-Ø110mm | Ø110-Ø135mm | Ø135-Ø155mm | Ø155-Ø190mm | Ø195-Ø254mm | Ø305-Ø445mm |
| Thread | API 2 3/8”Reg | API 2 3/8”Reg | API 3 1/2”Reg | API 3 1/2”Reg | API 4 1/2”Reg | API 6 5/8” Reg |
| Working Pressure | 10-17 Bar | 10-22Bar | 10-25 Bar | 10-25Bar | 15-33Bar | 15-33 Bar |
| Recommended Rotation Speed | 30-60r/min | 30-60r /min | 30-60r/min | 30-60r/min | 30-60r/min | 25-50r/min |
| Air Consumption | 10 Bar: 4.5m3/min | 10 Bar: 5.5m3/min | 10 Bar: 9m3/min | 10 Bar:20m3/min | 10 Bar:26m3/min | 10 Bar: 50m3/min |
| 15 Bar: 8.5m3/min | 18 Bar: 10m3/min | 18 Bar: 15m3/min | 18 Bar: 28m3/min | 24 Bar: 34m3/min | 24 Bar: 70m3/min |
| Place of Origin: | Made in China |
| Brand Name: | KIMDRILL |
| Model Number: | DHD/SD/QL/MISSION/NUMA high air pressure DTH hammer and bits |
| Certification: | COC/PVOC/FORM E/CO/ISO 9001 |
| Minimum Order Quantity: | 1PCS |
| Packaging Details: | Wooden cases or pallet |
| Delivery Time: | 7 working days |
Competitive Advantage
High drilling efficiency
Due to its good performance of high penetration rate and minimal deviation tendency, our DTH hammer have been exported to many different countries such as USA, South Africa, Ireland etc and won a good feedback.
Quality assurance
With many years experiences of production of DTH drilling tools, the DTH hammers we made have long service life and lower air consumption.
All around after-sales service
Our sales will response to any questions within 24 hours once we get. We pay great attention to the feedback from clients and satisfy them both on products and services.
warranty:
The warranty period is six months since the DTH hammer are delivered.
