Stack lifter passes a wheel to a transporting carriage. Then the wheel enters the wheel surface preparation unit (WSPU)  to decontaminate the wheel surface, using:

1st stage. KM-25 spray cleaning

2nd stage. Potable water washing 

3rd stage. Air blow-drying

After surface preparation is completed, the wheel is moved to the residual voltage inspection system (RVI); then the wheel is conveyed to the laser inspection unit to the wheel geometry inspection system (WGISI) for the contact-free geometric characteristics processing. The wheel is the processed to the optical identification system (OIS). Here, reading and wheel marking identification occurs in an unattended mode, where the heat operation number and the wheel ID number, which are registered in the database, are identified and correlated. Then, the wheel goes to the inspection gate (IG-1). An operator checks the interior of the wheel with the help of gauges and master forms. Each work place is equipped with a mechanism that provides automated table lift over the transport carriage, wheel rotation at the controller workstation, and lowering after the end of the control sequence (the lifting functions can also be manually controlled by the operator). Next, the wheel is rotated half-way by a manipulator (M-1) and is then transported to the inspection gate IG-2, where the operator visually checks the exterior of the wheel. After IG-2, the wheel is moved into the ultrasonic inspection unit (UI). This inspection unit is designed for detecting flaws in the wheel crown and disk area.

Then the portal manipulator (PM-1) grasps the wheel from the table on an even keel, turns it to an upright position and places the wheel onto the fluorescent magnetic particle wheel inspection unit (FMPIW-1), which is designed for the detection of surface flaws (delamination, cracking, etc.). After completion, the wheel is transported by the portal manipulator (PM-2) in a backwards sequence.

In the next step, the wheel is moved into the inspection gate IG-3 (RR Controller). Here, the number position identifier is placed. After identification, the wheel is inverted half-way by a manipulator (M-2) and goes onto the hardness gage materials-handling device. This device rotates the wheel 120° into a position where the hardness control platform is prepared. The aim of the platform preparation is to remove the decarburized layer and to provide surface undulation in the control point area. After this, the device rotates the wheel by another 120° into the position where the hardness (HB, Brinell) is tested. Then the device rotates the wheel by 120° into the initial position and the wheel goes back to the line.

In the next step, the wheel is moved into the inspection gate IG-4 (RR Controller). After the RR Controller has determined the usability of the wheel, the wheel is forwarded to the stamping panel where the "PЖД" (Russian Railways) acceptance stamp is placed on the wheel. The portal manipulator (PM-3) then grasps the wheel (being in horizontal position) from the table, turns it to a vertical position, and places it into the hardening unit (HU). Wheel disk hardening is performed in a shot peening machine by using small steel balls in a blast of air.

After the hardening process, a portal manipulator (PM-4) loads the wheel into the anticorrosive protection application unit (APAU). In this unit, the wheel (being in vertical position) is manipulated from one position to another by a three-armed spider-type push bar. In the first station, the wheel's accessible interior and exterior surfaces are painted, and the other four stations provide for the drying of the wheel.

After completion of the APAU process, the wheel goes into a stacking holder (SH), where the wheel is placed in vertical position and loaded into holders or stackers (S) from where they can be lifted for transportations by a crane.

If a wheel does not comply with the required quality parameters of any inspection station, this wheel is automatically processed into a "defective wheel" stacker located before the stacking device and the hardening unit area.