AM-50z-w roadheader is a machine designed to excavate galleries in section up to 16.4 m2 (low version) and up to 22 m2 (high version), in rocks having a compressive strength up to 60 MPa.

The machine can operate in underground excavations without methane inflow, or in excavations with he methane hazard classified as “a”, “b” or “c” degree of methane explosion hazard or to “A” or “B” class of coal dust explosion, provided that the power supply is disconnected when the maximum methane concentration exceeds 2%. The AM-50z-w has a CE mark

The AM-50z-w roadheader complies with the requirements of the following EU directives:

  • 2006/42/EC Machinery Directive
  • 94/9/EC Directive on equipment and protective systems intended for use in potentially explosive atmospheres (ATEX)
  • 2004/108/EC – EMC Directive
  • easy operation and maintenance
  • easy transportation of each component
  • easy underground assembly
  • surfaces exposed to wear are covered with materials of great resistance to abrasion
  • the hydraulic system is adapted to feed external hydraulic receivers with a pressure from 12 to 20 MPa
  • broad configuration possibilities
low version high version
Machine length [A] 7470±50 7660±50 mm
Machine width [B] 2120±50 2120±50 mm
Machine height [C] 1645±50 1845±50 mm
Apron width [D] 2000 2000 mm
- permanent extension [E] 2500 2500 mm
- permanent extension (wide) [F] 3000 3000 mm
Undercut [G] 200±50 250±50 mm
Cutting height [H] 3758 4262 mm
Cutting width 4800 5100 mm
Ground pressure 0.11 0.11 MPa
Clearance [I] 135 135 mm
Total installed power 169 169 kW
Cutting drum power 100 100 kW
Power supply/frequency 500/50 (60) 500/50 (60) V/Hz
Power supply/frequency 660/50 (60) 660/50 (60) V/Hz
Power supply/frequency 1000/50 (60) 1000/50 (60) V/Hz
Weight 28.4 29 t
  • hydraulically-controlled working platform with telescopic roof support arch jack
  • sector spraying system
  • drilling-bolting device
  • exploratory drilling device
  • closed cooling system providing minimization of water consumption
  • automatic central lubrication