With this furnace type, the goods to be heated are transported through the furnace either lying on a conveyor unit, in a standing or hanging fashion, and are subjected to a precisely defined temperature profile.
A continuous application can be plastic pipes which are run through a stress-relieving process. The pipes are supported by specially coated rollers on ball-bearings. These rollers can be height adjusted to match the respective pipe diameters with the help of a lateral crank mechanism. Suitable panels are mounted on the input and output sides to save energy.
Furnaces are charged manually with feeding cars and function in cycle operation. Lifting doors separate the respective tempering zones from the cooling zones in the through direction. A cart is “handed over” in the feeding section and the fully automatic cycle is started by selecting the batch on the operating unit. After ending the tempering, the cars stand ready for pick-up at the discharge side.
The transport with lateral chains and the cross braces adapted to the batch in the module is sturdy and flexible in use. Very heavy loads can be moved wear-free and therefore with low maintenance.