Audited Supplier
High air pressure DTH Hammer without footvalve,which has been one of the most advanced DTH Hammers in the world is our own design.
ADVANTANGES:
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.
TECHNICAL DATA:
| Length(exclude bit) | Weight(exclude bit) | External Diameter | Bit Shank | Hole Range | Connection Thread | |
| 888 mm | 25.00 kg | Φ82 mm | IR3.5 | Φ90 mm - Φ115 mm | API 2 3/8'' Reg | |
| Working Pressure | Impact rate at 0.5 MPa | Recommended Rotary Speed | Air Consumption | |||
| 1.0 MPa | 1.5 MPa | |||||
| 1.0-1.5 MPa | 25 Hz | 25-40 rpm | 3.8 m³/min | 7.5 m³/min | ||
HJG Company Honors&Certificates:
Frequently Asked Question:
1.Are you a manufacturer or a trade company? |
We are a manufacturer of rock drilling equipments and pneumatic tools in China over 17 years. |
2.How many workers in your factory?and what is your company scale? |
We have more than 700 employees, including factory workers,sales people,QC ,R&D and management team. |
3.Where are your company? |
We are located in Changsha city,Hunan province,where our first chairman Mao was born.1 and half hours by car from the nearest Huanghua international airport,2 and half hours by CHR express from Guangzhou nan station to Changsha city. |
4.Why choose HJG DRILL? |
1)We have more than 17 years of researching,developing, manufacturing and exporting high quality rock drilling equipments and penumatic tools to the global market. |
2)High quality compatible with Sandvik, Atlas Copco,Ingersoll Rand etc... |
3)Unbeatable price |
4)Excellent service. |
5.Which port do you shipping from? |
We usually ship container from Shanghai port.Guangzhou port is available too. |
6.Can you accept OEM & ODM ? |
Yes, both of them are acceptable. |
7.What is your minimum order quantity? |
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity. |
8.What is your payment term? |
We can accept T/T, L/C at sight, West union and in cash. |
9.How about the delivery time? |
It all depends,generally it takes about one month both in peak and off season. |
10.Could we make a schedule of an appoinment with your company? |
Definitely.You are the most welcome.Please inform us your arrival time in any place of China and initial routine in advance.We can reserve the hotel,offer pickup service from Changsha Huanghua airport or the CHR Express station unpon your arrival and after the appoinment.Be our guest then! |
Weclome our dearest customers to Visit our factory and to choose our great product ranges!
