With heating screws, which have a heated trough as well as a
heated screw shaft, the desired temperature difference can be reached
by means of indirect heating. The product flows through the inlet into
the spiral screw which carefully transports it to the outlet. The
conveyor pipe's and/or the conveyor trough's surface is being heated.
In order to achieve heating of the conveyor medium, a heat transfer
medium circulates inside the double jacket. The desired temperature is
reached with the design of the heating surface.