SMS group products for ring and wheel production range from single machines such as ring blank presses, rolling machines and ring expanders up to complete and fully automated plants.
The diameters of the ring blanks are increased with the ring rolling machines. Ring rolling machines can produce rings with rectangular cross-sections and numerous inside and outside profiles. Plastic deformation of the ring to the precise dimensions takes place in the ring expander. The control system records the resulting spring-back automatically and compensates for it with the expansion stroke.
Axial closed-die rolling machines from SMS are used, for example, for producing axle drive wheels. Compared to the traditional closed-die forging process on mechanical presses, manufacturers save up to 30% on material with the integrated plant solutions.
Wheel rolling machines produce full wheels and wheel discs for high-speed trains, locomotives, railway carriages, trams and underground trains. Thanks to their special design and SMS's globally tested technology, the machines are especially precise and efficient in operation.