2KV-A
 
 
 
 
 

Description

The 2KV-A raise-borer is designed for driving vertical and inclined rise workings in rocks with an ultimate strength σcomp= 210 MPa  in mines with no hazardous concentrations of gas and dust. Raise workings are driven by boring a pilot hole from top to bottom until entry to the lower level and by boring a drift across the entire section from the bottom upwards. Rock is broken by roller-bit drilling.
Parameters
Cutting tool diameter, m
1.25/1.5/1.8
Drilling height (depth), m, max
160/185
Pilot borehole drilling diameter, mm
270
Angle of a raise inclination from the horizontal
line, rad. (deg.)
1.047-1.83/60-105
Rock holing performance at  smp= 210 MPa, m3/h, min:
 
 - 1.25 m-dia. cutting tool
2.1
 - 1.5 m-dia. cutting tool
2.9
 - 1.8 m-dia. cutting tool 
3.6
Total installed power of electric motors, kW
150.5
including  the cutting tool drive,  KW
120
Overall dimensions of the drilling rig
in the working position, mm:
 
 - length
1570
 - width
1460
 - height
4000
Mass of the raise-boring machine, t, max
63.2