Portal lathes

SAFOP portal lathes are designed for reprofiling the wheels of disassembled axles from locomotives, carriages, and railway wagons.

Main features of Portal lathes

Portal system

The portal structure allows axle loading from the operator side and unloading from both sides of the machine, ensuring a smooth axle flow. If required, configuration can be adapted to meet customer requirements.

The machine performs the following operations:

Machining of axles with new wheels (monoblock or tyred) by turning the profile to a nominal diameter, nominal flange, and both faces, internally and externally.
Machining of worn axles by reprofiling the wheels according to the measured wear.

RD2000 series for the railway sector

RD2000 series – Technical data

Wheelset data
Track gauge	mm	900-1,676
Min./max. wheel diameter	mm	600-1,250
Wheel widt	mm	80-145
Min./max. axle lenght	mm	1,700-2,750
Number of disc brake	n°	2/3/4
Min./max disc brake diameter	mm	330-650
Max. admissible wheelset load	tons	4.5
Machine data
Total power of friction rollers	kW	4x30
Maximum stock removal	mm²	30
Friction drive rollers diameter	mm	220
Machine weight	tons	60
Noise reduction cabin (LxWxH)	m	7.5x3.8x3.7(Std. gauge)

The machine design meets the following requirements:

No marks on the wheels, thanks to the absence of mechanical clamping actions on the wheels. Rotation is achieved through friction rollers. The friction roller solution is the only one that can guarantee 100% absence of clamping marks.
No damage to the wheel profile caused by chips entering between the wheel and the friction rollers. This important goal is achieved because:
The roller contact area is on the wheel flange.
The tool is positioned laterally, below the upper friction rollers, rather than on top of the wheel.
No need for additional lifting equipment, as axle loading and unloading are performed using the same rollers. This solution allows for easy chip evacuation.
Axles are rolled directly from the rail to the lathe.
The friction roller drive ensures high productivity, as no lathe setup is required when machining axles with different wheel diameters.
The machine is installed inside a soundproof cabin and equipped with a fume extractor.

Why choose SAFOP portal lathes

SAFOP portal lathes ensure reliability, precision, and tailor-made configurations. Ideal for complex railway machining, they guarantee long-lasting performance and durability.