The new lift that Schindler has prepared replaces the climb cables with four wheels. In fact, the Schindlermobile elevator has four polyurethane wheels to climb vertically through the houses, but the building must have a maximum of seven floors.
The lift is located between vertical aluminium rails and the four wheels are affected by the motor/gearbox set under the cab. The wheels are attached to the rails with reinforced springs. The rails are engraved and these extracted wrinkles support the weight of the cab. Although there is oil on the rails, you cannot drop the cab down.
This lift is very cheap and can be installed within two days.