The ramps " LiftOk-Rk, LiftOk-Ak ", manually or electrically driven, are designed for an easy access of People with Reduced Mobility to both rails vehicles and low-floor buses (patent ModiRamp).

The electric motor is controlled by a specific electronic system that ensures the device to operate as step or ramp depending to the needs. The absence of hydraulic fluid (typically of the hydraulic system) the acceleration and speed can be granted at any temperature.