Screw Heat Exchangers Heating, cooling, and stabilizing bulk materials

The cooling screw is a single- or dual-shaft heat exchanger where the jacket, shaft, and/or screw flights are cooled with water, glycol, or oil. The required cooling capacity is calculated based on the desired temperature reduction and product specifications.

Our heating screws, known as the 'Magma', are designed for efficient product heating. They use indirect heat exchange and can reach temperatures up to +700 °C.

Our 'Residence' screw heat exchangers are designed to maintain products at a stable temperature for a specified duration. This is ideal for processes where pathogens need to be neutralized or controlled process reactions must take place.

For applications that require extremely low temperatures, our cryogenic screw heat exchangers provide a reliable solution. They are suitable for temperatures ranging from -196 to 0 degrees and are precisely engineered to prevent condensation or ice formation.

Increasingly, indirect electric heating of screw conveyors is preferred because operational costs are lower than those of thermal oil or steam systems. An additional advantage is that the overall machine weight is reduced since double walls are no longer necessary.