High Air Pressure DTH Hammer HD45A without foot valve HD45A
Introduction:Based on the characteristics of the wells, oil, gas and construction drilling, our company self-designed, developed and manufactured this kind of high air pressure DTH hammer.Advantages:1. Using the latest rock drilling theory, optimizing the inside structure and the size of the air distribution, to make the DTH Hammer obtain the optimal energy transfer and make it achieve faster drilling speed and lower air consumption.
2. For such projects as the drill bit break, retrieving very difficult, we specially designed a safe and reliable anti-shedding device for the bit.
3. The check valve can be replaced to the one with bigger ail controlling hole to provide more efficient cuttings discharge.
4. The top sub and the drive chuck have special thread, which can achieve an easier disassemble.Technical Datas:| Length(exclude bit) | Weight(exclude bit) | External Diameter | Bit Shank | Hole Range | Connection Thread |
| 1011 mm | 4302kg | Φ99 mm | DHD340 | Φ110mm _ Φ135mm | API 2 3/8'' REG |
| Working Pressure | Impact rate at 0.5 MPa | Recommended Rotary Speed | Air Consumption |
| 1.0 MPa | 1.8 MPa | 2.4Mpa |
| 1.0-3.0MPa | 30 Hz | 22-35 r/min | 6 m³/min | 10m³/min | 15m³/min |
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HJG 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. |
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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.
With a land area of 110,000SQM(=1,184,068 square feet) and workshop sapce of 50,000SQM(=538,213 square feet).We are equiped with over 1,000 sets of different advanced equipments and facilities required for manufacturing rock drilling machine and pneumatic tools.Our annual output value is over US dollars 50 million.Over 50-70% for export which covers most of the global markets including Korea,Malaysian,Australia,Russia,Middle Asian,East,Europe,South America,and Africa etc.. |
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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. |
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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. |
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5.Which port do you shipping from? |
We usually ship container from Shanghai port.Guangzhou port is available too. |
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6.Can you accept OEM & ODM ? |
Yes, both of them are acceptable. |
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7.What is your minimum order quantity? |
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity. |
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8.What is your payment term? |
We can accept T/T, L/C at sight, West union and in cash. |
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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!
Founded on April 30, 1999, Changsha Heijingang Industrial Co., Ltd is a famous privately operated enterprise specialized in researching and manufacturing rock drilling equipment and pneumatic tools. The company has rich scientific research and production experience. She produces high quality rock drilling products by using high quality raw material, utilizing advanced craft technology and imposing strict quality inspection. The products made by HJG are being adopted by various users from all over China and exported to more than 50 countries including America, France, Australia, Canada, Brazil, South Africa, Malaysian, South Korea and other countries. All of our products are highly-reputed by our customers.
Changsha Heijingang is located in Changsha, Hunan, with land area of 54, 000 square meters and workshop space of 45, 000 square meters.
Currently we have more than 600 employees and we are equipped with wide range of advanced equipment required for manufacturing rock drilling machine and pneumatic tools. We are professional designer and manufacturer for the following products: The most advanced high air pressure DTH hammer in China, various kinds of DTH bits, eccentric drilling equipment, symmetric drilling equipment, casing System, various kinds of threaded drilling bits, reverse circulation hammers and bits, shank adapters and coupling sleeves, new-style wells geothermal drilling rig, open-air blasthole drilling rig, all kinds of tool joints and drill pipes and spare parts for drill rig.
