The UBF 112 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 in centres and driving dogs installed on spindle face plates.
The main drive is powered by two 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;
Max. rate of continuously variable rotation of main drive:
Profile machining
rpm
45
Brake discs facing
rpm
72
Power of each main drive motor
kW
2¡Á28(S1)
Total power installed (standard execution)
kW
80
Machine tool overall dimensions£º
Length
mm
7220(3)
Width
mm
3000(3)
Height
mm
2620(3)
Workshop floor surface demand
mm
15500¡Á6500
Approximate weight of machine tool
¡Á10kN
36(3)
Machine tool accuracies
Difference in diameters between two wheels of the same wheelset
mm
¡Ü0.15
Radial run-out of wheel tread
mm
¡Ü0.10
Accuracy of profile machining
mm
¡Ü0.10
Roughness of wheelset tread
¡Á10kN
¡Ü0.15
Roughness of wheel profile surface after machining
um
Ra=5¡Â20
(1) - Another track gauge to be agreed upon. Multi-gauge version available. (2) - For track gauge of 1435 mm and standard execution. (3) - The height of machine tool base is zero reference. (4) -Lifting height of machine tool measuring device at moving zero position.
