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-120
MK-120
dth hammer model – 6-5/8” API Reg. Pin
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 | 1280 | 36,3 |
| 250 | 17,2 | 1730 | 49,0 | |
| 300 | 20,6 | 2150 | 60,9 | |
| piston specifications | ||||
 | bore | 8,5" | 216 mm | |
| stroke | 5" | 127 mm | ||
| hammer scale | ||||
 | O.D. | 10,7" | 272 mm | |
| length | 77,1" | 1959 mm | ||
| weight | 1417 lb | 644 kg | ||
| bit range | ||||
 | 11,8" | ~ | 19" | |
| 301,6 mm | ~ | 482,6 mm | ||
| shank | DHD112 N120 | |||
| *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
Every jobsite is a unique enviroment. MAXA DTH Hammers are customizable for every project of all types and sizes such as building foundation, piling on construction sites, mining and quarrying, water well drilling, utility linings, micro-tunneling and overburden drilling in a variety of geological formations and depths. Check out the video to see us in action.