Down The Hole Hammer

This product has been discontinued and removed from our shelves.

Down the hole hammers have powerful drilling capacity, great reliability, low operating costs and long service life. These drilling tools are widely used together with drill bits for drilling and quarrying in mining industries and other construction fields. Advanced production technologies and skillful design, as well as high quality materials result in good performance, simplicity and endurance. Besides, low pressure and high pressure hammers are available.

(1) Length: 90mm-605mm
(2) Size: 3"-12"
(3) Package: in wooden case
(4) Productivity: 2000pcs/month

Deliver maximum energy to drilling bit, fast drilling speed and low air consumption.
Smooth performance and long service life;
Low problem rate and easy to maintenance;
Easy to depart bit from hammer;
Interchangeable with DTH bit and dill pipe manufactured by Atlas copco and Ingersoll-rand


SIZE 3" 4" 5" 6" 8"
Length(Less bit) 930mm 1030mm 1170mm 1248mm 1487mm
Weight(Less bit) 24.50kg 39.20kg 71.5kg 98.00 188.00kg
External Diameter ¢81mm ¢99mm ¢125mm ¢142mm ¢180mm
Bit Shank IR3.5" Cop34 Cop44 DHD340 Cop54 DHD350R Cop64 DHD360 Cop84 DHD380
Hole Range ¢90-¢ 110 ¢110-¢ 135 ¢135-¢ 155 ¢155-¢ 190 ¢195-¢ 254
Connection Thread API23/8" Reg API23/8" Reg API23/8" Reg Or API31/2" Reg API31/2" Reg API41/2" Reg
Working Pressure 0.5-2.5 Mpa 0.5-2.5 Mpa 0.5-2.5 Mpa 0.5-2.5 Mpa 0.5-2.5 Mpa
Impact rate at 17 Bar 28HZ 27HZ 25HZ 23HZ 20HZ
Recommended Rotation Speed 28r/min 25-40r/min 20-30r/min 15-25r/min 15-20r/min
Air 10bar 18bar 24bar 80L/S 100L/S 145L/S 175L/S 190L/S
160L/S 180L/S 280L/S 340L/S 370L/S
210L/S 250L/S 390L/S 475L/S 495L/S

Maxdrill Rock Tools Company is a professional China-based down the hole hammer manufacturer established in 2005. We are approved by ISO9001:2000, and our drilling tools, such as top hammer drilling tools, down the hole drilling tools, taphole drilling and quarry drilling tools, and more, have been exported to Switzerland, Nepal, Slovenia, Brazil and other countries, for their high quality and low price.

If you are interested in our drilling equipment, we welcome you to contact us for consultation at Maxdrill Rock Tools Company. We look forward to working with you.

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