The development of our wheelchair models from the ideas through the first draft to production takes place entirely in-house.
We only use EN AW 7020-T6, a high-strength aluminum alloy from the AlZnMg group (AIZn4.5Mg1) from the 7xxx series with a 4 to 5% zinc and 1.0 to 1.4% magnesium content. With a strength of 350 to 600 N / mm², it is the strongest still weldable aluminum alloy. This alloy is used worldwide in aircraft construction, motorcycle frames, armored vehicles, bridge construction, race cars, high-performance sports equipment.
The Evo is a rigid frame wheelchair made in mono frame geometry. Thanks to our permanently welded frame constructions and the high-strength aluminum alloys, the Evois a stable wheelchair that is characterized by very good driving properties.
When building a wheelchair frame, the goal is to optimize the ratio of rigidity to weight.