A wheelchair lift, comprising: - a platform assembly to receive a wheelchair, said platform assembly comprising at least one plate, said platform assembly being made from aluminium, - a supporting assembly to moveably hold the platform assembly, said supporting assembly being made from aluminium and comprising a first and second holding arm (21, 22) being arranged at a distance to each other, - a coupling device to pivotably couple the platform assembly to the supporting assembly, said coupling device being made from one of steel or high strength aluminium or titanium or magnesium or combinations thereof, and comprising a first pivot pin and a second pivot pin, - wherein the platform assembly comprises a plurality of profiles (101,..., 107) of aluminium, wherein a first one of the plurality of profiles is arranged at an end of the at least one plate of the platform assembly being proximal to the supporting assembly, - wherein the first one of the plurality of the profiles is formed as a hollow tube extending along the end of the plate of the platform assembly between the first and the second holding arm (21, 22) of the supporting assembly, - wherein the first one of the plurality of the profiles comprises a first end section arranged proximal to the first holding arm and distal to the second holding arm, and a second end section arranged proximal to the second holding arm and distal to the first holding arm, - wherein the first pivot pin of the coupling device is fixed to the first end section of the first one of the plurality of profiles of the platform assembly, - wherein the second pivot pin of the coupling device is fixed to the second end section of the first one of the plurality of profiles of the platform assembly, - wherein the coupling device is pivotably coupled to the supporting assembly. - a platform assembly to receive a wheelchair, said platform assembly comprising at least one plate, said platform assembly being made from aluminium, - a supporting assembly to moveably hold the platform assembly, said supporting assembly being made from aluminium and comprising a first and second holding arm (21, 22) being arranged at a distance to each other, - a coupling device to pivotably couple the platform assembly to the supporting assembly, said coupling device being made from one of steel or high strength aluminium or titanium or magnesium or combinations thereof, and comprising a first pivot pin and a second pivot pin, - wherein the platform assembly comprises a plurality of profiles (101,..., 107) of aluminium, wherein a first one of the plurality of profiles is arranged at an end of the at least one plate of the platform assembly being proximal to the supporting assembly, - wherein the first one of the plurality of the profiles is formed as a hollow tube extending along the end of the plate of the platform assembly between the first and the second holding arm (21, 22) of the supporting assembly, - wherein the first one of the plurality of the profiles comprises a first end section arranged proximal to the first holding arm and distal to the second holding arm, and a second end section arranged proximal to the second holding arm and distal to the first holding arm, - wherein the first pivot pin of the coupling device is fixed to the first end section of the first one of the plurality of profiles of the platform assembly, - wherein the second pivot pin of the coupling device is fixed to the second end section of the first one of the plurality of profiles of the platform assembly, - wherein the coupling device is pivotably coupled to the supporting assembly.