The Stairwalker SAL can lift either 110kg, 140kg or 170kg (depending on the model listed below) and can climb stairs at a rate of 35 to 48 steps per minutes.  The SAL is primarily a handy modular-designed hand truck with an unladen weight of only 16kg.

Once you fit the snap-on battery, this simple hand truck becomes a versatile all-rounder: a normal hand truck for general use on level ground and a powered stair climber for use on steps and stairs. 

During descent, the motor acts as an electric brake and the load is brought down smoothly. It is also ideal for winding staircases and across tight landings.  The SAL has a mechanical clutch which will prevent damage if the unit is used to descend the stairs with the controls in the ascent position. The unit also features electronic overload protection preventing ascent with too heavy a load.  The SAL has two ascending speed settings only lifts the actual step height because the support wheels use the higher step to climb.  The advantage is less effort and makes fast climbing possible.

The electronic power supply has a 2-speed control for ascending. During descent the intelligent power supply features step sensing and starts automatically. In fact you simply let the SAL's roll down the tread without touching any switch. The power supply acts as a brake and controls the descending movement. The operator only has to concentrate on the load.