Above Floor Wheel Lathe for wheelsets machining / Friction drive





Range of wheel tread diameters: 600 to 1,250 mm
Maximum wheelset weight: 4 × 10 kN
Range of adjustable track gauges: 1,000 to 1,676 mm




The UFB 125 N Above Floor Wheel Lathe is a CNC double-saddle special-purpose lathe designed for reprofiling of wheels and brake discs used in rail vehicles. The machine tool ensures productive machining of solid (monoblock) wheels and wheels with tyres of both used and new wheelsets.

The wheelsets can be provided with outboard axle boxes, gears installed between the wheels and brake discs.

The wheelset is rolled onto the built-in wheelset elevator along rails, automatically centred and clamped between the centres and the friction drive rollers - three rollers are attached to each wheel.

The main drive is powered by six AC motors of infinitely variable rotation rates and digitally controlled in master / slave system.

The UFB 125 N Above Floor Wheel Lathe is capable of performing the following operations:

  • Turning of wheel profile according to technological program;
  • Wheel rim inner facing;
  • Wheel rim outer facing;
  • Turning of limit machining groove;
  • Turning of tyre in order to remove retaining ring;
  • Turning of wheel centre;
  • Axle-mounted brake discs facing;
  • Wheel-mounted brake discs facing.




  • Major body elements made as extremely rigid, heavily ribbed box-type high-grade iron castings guaranteeing the best dumping of vibrations produced during cutting process;
  • Main drive from six friction rollers individually powered by AC motors of infinitely variable rotation rates and digitally controlled in master / slave system;
  • Automatic and reliable profile wear measurement using touch-type measuring heads;
  • Productive machining of narrowed (economical) wheel profiles;
  • Versatile equipment and wide programming capabilities facilitate easy machining of unusual wheel profiles;
  • Operation in roll-in roll-out system;
  • Adjustable track gauge in the range of 1,000 to 1,676 mm.


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