Hjg High Air Pressure DTH Hammer Without Foot HD45A

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.
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.

HammersBit ShankConnection ThreadSuitable bitWorking pressureAir consumption1-3" Middle-low pressure DTH hammers
BR1
BR2
BR3RD40 box
RD50 box
API 2 3/8" Reg
¢64-¢76mm
¢70-¢90mm
¢90-¢110mm0.7-1.75Mpa
0.7-1.75Mpa
0.7-1.75Mpa0.7Mpa4.5m3/min1.0Mpa4m3/min1.4Mpa5m3/min3" hammersDHD3.5
COP32/COP34
M30API 2 3/8"Reg¢90-¢110mm1.0-1.5Mpa1.0Mpa4.5m3/min1.5Mpa9m3/min4" hammersDHD340
COP44
QL40
SD4
M40API 2 3/8"Reg¢105-¢130mm1.0-2.5Mpa1.0Mpa6m3/min1.8Mpa10m3/min2.4Mpa15m3/min5" hammersDHD350
COP54
QL50
SD5
M50API 2 3/8"Reg/API 3 1/2"Reg¢130-¢156mm1.0-2.5Mpa1.0Mpa9m3/min1.8Mpa15m3/min2.4Mpa23m3/min6" hammersDHD360
COP64
QL60
SD6
M60API 3 1/2"Reg¢152-¢203mm1.0-2.5Mpa1.0Mpa10m3/min1.8Mpa20m3/min2.4Mpa28.5m3/min8" hammersDHD380
COP84
QL80
SD8API 4 1/2"Reg¢200-¢279mm1.0-2.5Mpa1.0Mpa15m3/min1.8Mpa26m3/min2.4Mpa34m3/min10" hammersSD10
NUMA100API 6 5/8"Reg¢254-¢330mm1.0-2.5Mpa1.0Mpa22m3/min1.8Mpa40m3/min2.4Mpa55m3/min12" hammersDHD1120
SD12
NUMA120
NUMA125API 6 5/8"Reg¢305-¢381mm1.0-2.5Mpa1.0Mpa30m3/min1.8Mpa56m3/min2.4Mpa78m3/min
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!