WRL machines are designed to produce parts like solids of revolution by the method of cold, warm (t=500-700°C) and hot (t=1000-1250°C) rolling. Warm rolling is used for production of finished parts or preforms with minimum stock for further machining (grinding). The dimensional accuracy and surface quality are insignificantly lower than in cold rolling. Hot rolling is applied to form complexly-shaped parts with a 4-5 draft ratio for one travel. Dimensional accuracy and surface quality are determined by wider tolerances, compared to cold or warm rolling, and as a rule, require further machining. WRL machines have one (upper) moving die. A slider is installed on rolling-contact bearings with automatic clearance adjustment allowing to minimize friction losses and avoid clearance in guides when the slide is heated during the rolling process. All the machine components which are in contact with a hot billet have intense water cooling, allowing to minimize the time required for the thermodynamic process stabilization. A pyrometer adapted to any presence of scale on the billet provides for high-accuracy control of the billet temperature and to produce high-precision parts.

WRL TN Series WRL TN machines is a further development of WRL Series designed to produce parts like solids of revolution by the method of warm and hot rolling. WRL TN machines have two movable dies that allows to use wedge die up to 3.5m in length, and produce preforms up to 200 mm in diameter.