Answer:

The maximum load depends on the model and the material of the grating. Models that use a hot-dip galvanised steel grating are designed for a permissible vehicle weight of 40 tonnes. ProfilGate systems with stainless steel gratings, on the other hand, are approved for vehicle weights of up to 10 tonnes.

Following this rule, the following series are approved for a vehicle weight of 40 tonnes: b, st, xs and go. 

In contrast, the stainless steel gratings installed in the i, sti and si series models are only approved for vehicles weighing 10 tonnes.

The height of the tray is not taken into account when assessing the load capacity.