Seat mechanism
The new option for sitting simply, beautifully and ergonomically! AM90 chair and stool mechanics with the “360° Simple Release Ring”
The AM90 represents an enhancement to our legendary AM15. With impressive lightness, your chairs and stools turn into real eye-catchers! The AM90 is not only a visual improvement, it is also easy to use.
With the 360° Simple Release Ring, you can also modify your seated height at the turn of a hand. The specially designed aluminum casing guarantees use over the course of years.

Chair and stool mechanics
Sheet steel mechanics with casted aluminum housing, 28 mm cone, with slotted holes for easy mounting Release ring of metal, welded. Choose your surface variation from chrome-plated or black powder-coated
mounting | ![]() hole dimens. |
![]() diameter |
surface | item no. |
---|---|---|---|---|
28mm cone | 55x55mm to 100x100mm | 264mm | polished | AM90 P |
28mm cone | 55x55mm to 100x100mm | 264mm | black powder coated | AM90 S |
Advantages of the AM90 at a glance:
- Design timeless
- very strong aluminium housing
- highly compatible with slotted holes
- fits on every “standard” gas pressure column