The AMTR-U mechanical seal is designed to seal a truck trailer at the loading bay. There is no need to use any additional elements to protect the loaded goods, as the seal is fully integrated with the leveller. The main task of the seal is to limit the influence of unfavourable weather conditions on the work in the warehouse. The versatile dimensions of the AMTR-PRO model make it compatible with semi-trailers. Seals with non-standard dimensions can also be designed.

The AMTR-P inflatable seal is the most effective and the most durable of all types of docking system seals. The air bags are harmonica-shaped, which creates an optimal seal. This type of seal is especially recommended in cases of significant differences in temperature inside and outside the room, for example in air-conditioned or cooled storage areas. Seals with non-standard dimensions can be designed.

Both the tubular and blower seal motor are operated with one button. When the truck is being docked for unloading, the engines seal the space between the open gate and the vehicle within 30 seconds.

The upper seal air bag is extended by the shaft of the tubular motor. During expansion, the blower motor ensures that the bags are filled with air.