C-Max U1

Robust and Dependable

Starting at $8,110

The C-Max U1 allows users to carry a friend or loved one up and down stairs. Unlike a fixed stairlift, stairclimbers like the C-Max U1 are portable and can be transported in most vehicles.

And unlike tracked stairclimbers, the C-Max is able to navigate curved staircases and does not damage floors.


  • Greatly reduces the physical effort required to carry a person up stairs
  • Easy to disassemble for storage or transport
  • Capable of handling curved or narrow stairways
  • Suitable for all floor surfaces – won’t damage stairs
  • Capable of lifting persons up to 140kg or 160kg
approved total weight 375lbs (170 kg)
max. weight of the person 305lbs (140 kg)
climbing speed 8 — 23 steps per minute
(continually adjustable)
range with one charge of the batteries and an average load of 165lbs (75 kg) approx. 25 levels
(equals 375 steps)
max. height of step 210mm | 225 mm (extended option)
width (without | with arm rests) 440 mm | 485 mm
depth (foot rest folded in | extended) 730 mm | 915 mm
height (handles retracted | extended) 1090 mm | 1440 mm
batteries 2 x 12 V / 5 Ah sealed lead acid
weight of the climbing unit 40lbs (18.1 kg)
weight of the C part plus seat 12.1lbs (5.5 kg)
weight of the back rest 9.9lbs (4.5 kg)
weight of both arm rests 2.6lbs (1.2 kg)
weight of the battery pack 9lbs (4.1 kg)
total weight 73.6 lbs (33.4 kg)
width, height, depth, seat 350 mm / 500 mm / 410 mm