Otolift Modul-Air Smart

The world's thinnest single rail.

Otolift’s most advanced stairlift runs on a rail just 6 centimetres across — built from interchangeable modules that adapt to almost any staircase, wide, narrow or spiral. In folded position it is a discreet piece of furniture. In motion it is close to silent.

Otolift Modul-Air Smart

6 cm

Rail diameter — the thinnest single rail in the world, against 8 cm for a traditional stairlift

8,000 kg

The load the modular rail withstood in Otolift's own strength testing

125 kg

Maximum load capacity, with the rail itself tested to 8,000 kg

Every staircase

Wide, narrow, curved or spiral — the modules adapt rather than the staircase

Unique rail system

Two centimetres you will notice every day

Most stairlifts run on a rail around 8 cm across. The Modul-Air Smart runs on 6 cm. On a Singapore staircase where width is already tight, that difference is what keeps the stairs usable on foot for everyone else in the house.

Built from interchangeable modules

Otolift's engineers designed the rail as a series of modules that fit together. That is how it can be adjusted quickly to almost any staircase — including mounting on the inside of a curve if you prefer.

Angled couplings for a smooth ride

The oblique coupling between modules means the chair moves up and down in one continuous motion rather than stepping through each joint.

Tested to 8,000 kg

Otolift load-tested the modular rail to 8,000 kg. Thin is not the same as flimsy.

Modul-Air Smart

ø 6 cm

Shown to scale

Traditional stairlift

ø 8 cm

Shown to scale

Reverse drive technology

The chair can drive backwards

On a tight turn, a conventional stairlift swings the user’s knees towards the wall or the bannister. The Modul-Air Smart can drive partially — or completely — in reverse through that section instead.

It sounds like a small thing. On a narrow staircase with a half landing, it is the difference between a comfortable ride and one where you brace yourself at the same corner every time.

Upholstery & paintwork

Thirteen upholstery choices, two rail colours

Choose the seat in fabric, leather or synthetic leather, then pick the rail finish. Tap a swatch to see it.

 

Grey Fabric
Grey Fabric

Fabric

Leather

Synthetic leather

Rail paintwork

Cream white RAL 9001
Light brown RAL 8025

Colours on a screen are never exact. We bring the physical sample set to the free home assessment so you can hold them against your own staircase before choosing.

Specifications

The technical detail

Rail Single modular rail, mounted on the stair treads
Rail diameter 60 mm — the world’s thinnest single rail (a traditional stairlift   rail is around 80 mm)
Maximum load capacity 125 kg
Batteries 2 × 12V, 7Ah — the lift operates during a power failure
Noise level Max 50 dBA
Operation Hold-to-run joystick; wireless remote control to call the stairlift
Footrest Automatic folding footrest
Certification EN 81-40 — the European safety standard for stairlifts

Looking to improve mobility in your home or business? We offer free consultations and site assessments to help you determine the best solution for your specific needs. Contact us today to schedule a visit with our expert team. 

Common questions

About the Modul-Air Smart

Send a photo of your staircase on WhatsApp and we’ll tell you straight away whether it suits.

Yes, of course! An Otolift stairlift fits well at any staircase. Narrow stairs, steep stairs, stairs with curves … You name it, we do it!

We are able to do it as Otolift stairlift is a customized product, made exactly for any staircase at home.

We also have various models of stairlifts available for different type of staircase, so that the stairlift can be optimally adjusted to your specific stair situation.

If you want certainty about the possibilities, you can simply contact us!

The maximum weight the stairlift can carry is 125kg, and that is based on continuous load.

We do have heavier load capacity at 140kg, do contact us to know more.

Our stairlift rail will be mounted on the staircase. The wall and hand rail will remain untouched.

The stairlift rail will be neatly screwed onto the stairs with small supports.

The lift runs on two 12V 7Ah batteries that charge at every stop, so it keeps working during a power cut and will still bring you back down.

The stairlift can be used several times even after the power failure.

Yes. There are 13 upholstery colours across fabric, leather and synthetic leather, and the rail is finished in either Cream white RAL 9001 or Light brown RAL 8025.

Our stairlift is customised to fit your staircase and can be provided with basic or with additional features.

For a straight staircase, the stairlift price is determined by the length of the staircase.

For a curved staircase, the stairlift price is determined by the length of the staircase and number of bends needed for the complete stairlift solution.

Please feel free to contact us for free quotation.