The mark series down the hole hammers are valveless design with efficient and powerful impact energy, and are your best partner to work with hard rock. They can be operated over a wide range of air pressures. Each hammer has a designed hole drilling size range. The mark series down the hole hammers are supplied with API regular / Beco pin top adaptor as standard, but other alternatives can be supplied as option. The mark series down the hole hammers can be ordered with different type of shanks according to customer needs. If you want a durable and dependable drilling equipment with powerful drilling penetration rate in competitive price, MAXA mark series is definitely your choice.
Down the hole hammer / MK-140
MK-140
The mark series down the hole hammers are produced from MAXA latest technology and high quality materials under strict quality control.

Details
Specifications
| operating air pressure | ||||
|---|---|---|---|---|
| psi | bar | cfm | m³/min | |
![]() | 200 | 13,8 | 1403 | 39,7 |
| 250 | 17,2 | 1840 | 52,1 | |
| 300 | 20,6 | 2320 | 65,7 | |
| piston specifications | ||||
![]() | bore | 9,6" | 244 mm | |
| stroke | 5" | 127 mm | ||
| hammer scale | ||||
![]() | O.D. | 12,6" | 320 mm | |
| length | 75,9" | 1929 mm | ||
| weight | 1976 lb | 898 kg | ||
| bit range | ||||
![]() | 14" | ~ | 20" | |
| 355,6 mm | ~ | 508 mm | ||
| shank | N125 | |||
| *specifications are subject to change without notice | ||||
Gallery
We provide technical rockdrilling solutions to our customers with a variety of rockdrilling needs. We design, manufacture and sell DTH rockdrilling tools for use in building foundation and piling on construction sites, mining and quarrying, water well drilling, utility linings, micro-tunneling and overburden drilling in a variety of geological formations and at considerable depths. Check out the gallery to see us in action.
Video
<< Private Job in Peak >>
Build New Private Building
Application: Foundation Pile and Pile Curtain
Hammer: MK-140 Hammer
Hole/Casing Size: dia. 406.4mm
Depth: Average 35mm.
Check out the video to see it in action.






