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Low Air Pressure DTH Hammers

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DTH hammers mainly be produced with shank type of CIR76 CIR90 CIR110 CIR130 CIR150 series, Diameter ranging from 2” to 8” for mining and quarrying, and 6” to 32” for water-well drilling, oil-well drilling, foundation and so on;
  • CIR76 CIR90 CIR110 CIR130 CIR150
  • Kingkong Drills
  • Low Air Pressure DTH Hammers
  • Down The Hole Hammer
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DTH hammers are all simple structure, easy to assemble and disassemble, as well as reliable quality and long service life. Acedrills has various hammer models suitable to drill holes from 64mm to 1000 mm (2-1/2” ~ 39-3/8”) in diameter; and come with three kind: low pressure (5 ~ 7 bars), middle pressure (7 ~ 15 bar) and high pressure (7~ 30 bars).


Low Air Pressure DTH hammers:


1.CIR series Low air pressure DTH hammer includes: CIR55, CIR65, CIR70, CIR80, CIR 90, CIR110, CIR110W, CIR150, CIR170, CIR200W etc.

2.J series Low air pressure DTH hammer includes: J60C, J70C, J80B, J100B, J150B, J170B, J200B

3.BR series Low air pressure DTH hammer includes:BR1,BR2,BR3


Our hammer and bits are made of high quality alloy steel with advanced heat threatment to assure the good drilling performance and long service life. They are widely used by our customers all over the world. low air pressure down-the-hole drill bits, Dia.:65-220mm  



Technical Data for Low Air Pressure DTH Hammer 

DTH hammer type

CIR76

CIR90

CIR110

CIR130

CIR150

Bit Shank:

CIR76

CIR90

CIR110

CIR110/CIR130

CIR150

Top Sub Thread:

F48x10PIN

F48x10PIN

API 23/8" RGE BOX

API 23/8" RGE BOX

F70x10PIN

Bit Diameter:

76(mm)

90-120(mm)

110-150(mm)

130-175(mm)

150-200(mm)

Working Pressure:

4-10(bar)

5-10(bar)

5-10(bar)

5-10(bar)

5-10(bar)


Some Photos of Rock Drilling Low Pressure DTH Hammers in workshop for production and stocked in warehouse.

Low Pressure DTH Hammers 02Low Pressure DTH Hammers 04Low Pressure DTH Hammers 01

Applications for DTH Drilling Hammer

 1. mine and quarry

 2. road construction for the drilling and blasting work

 3. water well drilling

 4. slope protection


For more details please contact 

Amy Zhang 




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