Products / Rotary blasthole drills / Rotary blasthole drill rigs / DM-M3
 


 DM-M3

For large diameter multi-pass drilling

It all starts with the blasthole — and the blasthole starts with the power and performance of the DM-M3.

The DM-M3 is available with several options and features, permitting it to adapt to any mining situation anywhere in the world.

Main features

  • The cab is sealed, pressurized and heated with large tinted windows, sound abatement, and ample work area and headroom

  • The reliable and efficient power pack group is mounted on its own floating sub-base to minimize shock loads and ensure alignment of components

  • For maximum efficiency, there are two hydraulic motors powered by a hydro static closed-loop system through planetary gear speed reducers



Technical data
Drilling method Rotary - Multi pass 
Hole diameter 9 7/8'' - 12 1/4''

251 mm - 311 mm  

Hydraulic pulldown 90,000 lbf  400 kN 
Weight on bit 90,000 lb  40,800 kg  
Hydraulic pullback 41,500 lbf  185 kN
Single pass depth options 37 ft 11.3 m
Maximum hole depth* 200 ft - 240 ft 61 m - 73.2 m
Estimated operating weight 230,000 lb  104 tonnes  
* Total depth not avaliable for all pipe sizes

Download Product Brochure (pdf 1,3 MB)
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Brochure (pdf) 
 
 DM-M3


Case studies
          
 
 Coal mining in Wyoming