Industrial sliding door without floor truck made of very stiff insulated modular panels assembled and creating one or two opposite leaves.
Sliding by means of steel four wheels trolleys featuring dust preventing ball bearings. Upper cross beam in galvanized profiled steel divided in two parts in order to let the pulling chain passage in case of further motorization . Particularly suitable for medium and very large rooms for both commercial and industrial applications.
The installation requires a load bearing lintel supporting the door weight. No lower truck is needed.