High Air Pressure DTH Hammer HD25A

HD25A DTH Hammer (HD25)It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world. high Air Pressure without foot value DTH HammersIt has the following advantage
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.
HD25A DTH HammerLength(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread872 mm16.00 kgΦ71 mmHD25Φ76 mm - Φ90 mmT42 x 10 x 1.5Working PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption1.0 MPa1.5 MPa1.0_1.5 MPa25 Hz22-35 rpm4 m³/min6 m³/min

Frequently Asked Question:

1.Areyouamanufactureroratradecompany?

Weareamanufacturerof rock drilling equipments and pneumatic tools in China over 17 years.

2.Howmanyworkersinyourfactory?and what is your company scale?

Wehavemorethan 700employees,includingfactoryworkers,salespeople,QC,R&Dandmanagementteam.
With a land area of110,000SQM(=1,184,068 squarefeet)andworkshop sapce of 50,000SQM(=538,213 square feet).We are equiped with over1,000 sets of different advanced equipmentsand facilities required for manufacturing rock drilling machine and pneumatic tools.Our annual output value is overUS dollars 50 million.Over50-70%for export which covers most of the global markets including Korea,Malaysian,Australia,Russia,Middle Asian,East,Europe,South America,and Africa etc..

3.Whereareyourcompany?

WearelocatedinChangsha 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.WhychooseHJG DRILL?

1)Wehavemorethan17yearsofresearching,developing,manufacturing and exporting high quality rock drilling equipments and penumatic toolsto the global market.

2)High quality compatible withSandvik, Atlas Copco,Ingersoll Rand etc...

3)Unbeatableprice

4)Excellent service.

5.Whichportdoyoushippingfrom?

WeusuallyshipcontainerfromShanghai port.Guangzhou port is available too.

6.CanyouacceptOEM&ODM?

Yes,bothofthemareacceptable.

7.Whatisyourminimumorderquantity?

OurMOQare1pcor 1 completeset,thepricemayrelyontheorderquantity.

8.Whatisyourpaymentterm?

WecanacceptT/T,L/Catsight,Westunion and in cash.

9.Howaboutthedeliverytime?

Italldepends,generallyittakesaboutone 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!