CNC Under Floor Wheel lathe is an automatic machine for simultaneous profiling of new or worn out wheels of railways vehicles in situ. Wheel sets of railways rolling stock i.e. locomotive, coaches, wagons etc. are turned on this machine when in assembled condition. It is equipped with dual CNC tool post for turning any wheel profile along with pre and post measurement system.

 Model : YUL -08

Technical Data of Machine

Max. Main Drive Motor Capacity 4 x 15 KW
Cutting Speed while Profiling 25 to 80 m/min
Tool Post Feed for Wheel Profiling 0.1 to 2.5 mm/rev
Tool Post Rapid Speed for Both Axes 3000 mm/min
Max. Chip Cross Section while Profiling 10 mm2


Wheel Set Data for Machining

Max. Tread Diameter 1250mm*
Min. Tread Diameter 540mm*
Wheel Width 75 to 145mm
Max. Width of Vehicle (Rolling Stock) 3600/3100 mm*
Min. Width of Vehicle (Rolling Stock) 2900/2400 mm*
Max. Axle Length 2750mm*
Min. Axle Length 1200mm*
Max. Axle Load 300 kN
Max./Min. Dia. for Brake Disc Machining 700/250mm

*Depends on track gauge


Accuracies of Wheel Set

Wheel Profiling
Max. Difference in Dia. of Both Wheels <0.1mm
Accuracy of Wheel Profile when Compared with Standard Gauge <0.2mm
Radial Run Out of Wheel <0.1mm
Axial  Run Out of Wheel <0.15mm
Profile Surface Finish <12.5µm Ra
Brake Disc Machining (Optional)
Min. Surface Finish <2.5µm Ra
Flatness of Surface <0.1/100mm
Lateral Wobble <0.2mm

Read Detailed Specifications

Pl. note that improvements is a continuous process. Hence, details explained above may undergo some changes meeting functional, quality and productivity requirements of the required technical specification.