Rock drilling High air pressure DTH hammer
It is a kind of high air pressure DTH hammer without foot valve,and it is our newest design.It is also one of the most advanced DTH hammers in the world.
Urban high-rise building construction, high-speed rail, highways, bridges, subway construction, hydropower stations, nuclear power plant construction projects will involve the pile foundation project. With the increasing demand for rock-fill holes in rock formations for these projects, the new Speedmaster series designed specifically for these types of projects is being developed with extensive experience in large diameter boreholes and ultra-deep boreholes Large-aperture down-hole impactor, fully meet the construction requirements of the pile foundation construction rock into the rock.
1.The detailed parameter of DTH Hammer
Technical Data | |||||
Length(Without Bit) | ND580 | ND680 | ND680S | ND882 | ND1080 |
978mm | 1135mm | 1359mm | 1266mm | 1412mm | |
Weight(Without Bit) | 60.00kg | 100.50kg | ≈200.00kg | 180.00kg | 288.00kg |
External Diameter | Ø126mm | Ø148mm | Ø185mm | Ø185mm | Ø225mm |
Hole Range | Ø136-Ø155mm | Ø158-Ø203mm | Ø195-Ø254mm | Ø200-Ø254mm | Ø254-Ø311mm |
Connection Thread | API2 3”/8REG (Optional) | API3 1”/2REG (Optional) | - | API4 1”/2REG (Optional) | API4 1”/2REG (Optional) |
Working Pressure | 1.5-2.6Mpa | 1.5-2.6Mpa | 1.7-3.5Mpa | 1.7-3.0Mpa | 2.2-3.5Mpa |
Impact Rate | 32HZ at 1.7 Bar | 29HZ at 1.7 Bar | - | 28HZ at 1.8 Bar | 32HZ at 2.4Bar |
Recommended Rotation Speed | 30-60r/min | 25-55r/min | 15-30r/min | 25-50r/min | 25-50r/min |
Air Consumption | 1.8Mpa: 12.0m³/min | 1.8Mpa: 17.0m³/min | 2.4Mpa: 31.0m³/min | 1.8Mpa: 23.0m³/min | 2.4Mpa: 62.0m³/min |
Bit Shank | ND580 | ND680 | DHD380 | ND882 | ND1080 |
2.The advantages of High Air Pressure DTH Hammer for mining
It has following advantages:
1.Out of the trouble of foot valve fracture 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 span,easy and cheap maintenance. 4.Lower air and oil consumption.The oil consumption is about 10% lower than the one with foot valve.
The picture of High Air Pressure DTH Hammer
Operation Scene:
1.Packing:Plastic or wooden case
2.Shipping: By sea / By air / By car / By train
We are located in Zhengzhou City, Henan Province, the Central area of China with convenient transportation access.All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.We now have over 100 employees, an annual sales figure that exceeds USD 10 million and are currently exporting 45% of our production worldwide.
Q: What's your delivery time?
A: Commonly produce need 20-25 days to produce. Within 3or 5 days if in stock.
Q: What methods of payment are accepted?A: We agree T/T, L/C, West Union.
Q: What about the shipment?A: Based on order quantity. We can send it to you by Express, by Air, by Sea, and by Train. Or send the goods to your Chinese agent.
Q: How to control the quality?A: We should be checking & testing everyone button bit before shipment.
Q: Do you agree sample order?A: Yes, we are welcome your sample order to testing our quality.
Q: Can we select the button bit color?A: Yes, We color the product according to the color you need.
Q: Can we change to our mark on the button bit?A: Yes, we can casting your company mark on the button bit. (Except sample order).
Q: Do you have after-sale service and warranty service?A: Any quality or quantity problem once confirmed, we will reply you within 24 hours and give you a solution.
Q: Can i trust your company?A: Our company has been certificated by Chinese government, and verified by Alibaba Trade Assurance,100% refund of the Trade Assurance Amount. Alibaba can guarantee all of your payment, Just order from us!
Q: After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded).
b. Technical Support will be available in any time.