NOVELTY - The device (5) has heating plates (8, 8') accommodating insulated heating wires (7), and a cover plate (10) defining an upper processing surface (9), where the plates are provided as a two-layer component (F). A separating layer (11) is provided between the plates such that the plates are detached from a connection position of the plates in a non-destructive manner. The heating plates are connected to the cover plate above the wires. The separating layer is designed as a single-layer foil made from metal e.g. aluminum, copper and brass and as a metallic coated foil made from plastic.    USE - Heating device for use as a pressure plate for a pressing system and for a solar cell of a processing system i.e. vacuum laminator, which is utilized for thermoplastic processing of a plastic product i.e. plastic film. Can also be used for processing a wood product, textile product, acryl glass product, inlay product and polyester product.    ADVANTAGE - The separating layer is provided between the heating and cover plates such that the plates are simply detached from their connection position in a non-destructive manner to repair the heating wires, thus accessing the susceptible to faults area of the insulating wires at low cost. The heating device is less susceptible to faults and enables easy repairing if necessary in an area of its heating plate at low technical cost. The separating layer is designed as the single-layer foil made from metal e.g. aluminum, copper and brass, so that uniform temperature distribution and discharge in a direction of a heating zone is achieved, thus increasing efficiency and reducing fault liability of the heating device.    DESCRIPTION OF DRAWING(S) - The drawing shows a partially cut perspective view of an assembly provided for a heating device with two heating plates.    Two-layer component (F)    Heating device (5)    Insulated heating wires (7)    Heating plates (8, 8')    Upper processing surface (9)    Cover plate (10)    Separating layer (11)