KÖLLEMANN-Heating-Screw-Conveyors have their field of application within the heating or heat treatment of any kind of bulk-solid and pastures such as  (see Preheaters), dusty or grainy as well as slurry and sludges.

KÖLLEMANN-Heating-Screw-Conveyors are used to transport a certain amount of heat to a product in order to heat it up, melt, evaporate fluids (see Dryers) or even start-up or end a chemical reaction inside.

The KÖLLEMANN-Heating-Screw-Conveyors are different to most other products available on the global market due to their sophisticated design, which has essential advantages for maintenance, lifetime, efficiency and required space.

By implementation of the well-proven Hollow-Flight-Principle, the KÖLLEMANN-Heating-Screw-Conveyors offer a maximum of performance with minimal footprint. The optional modular insulation offers an excellent maintainability by means of the quick and easy removable segments and ensures the best possible utilization of the fed-in amount of heat by minimization of radiation-loss.

One challenging problem was the compensation of the thermal-expansion of the screw-shafts. Due to our outstanding effort in research and development we have been able to find a solution. The expansion is completely absorbed by a special-designed and produced KÖLLEMANN-Carbon-Bearing (available on  certain models, depending on necessity), which faces minimized maintenance.The latch-shaped shaft-passages allows to replace single shafts without the necessity to remove the end-walls or any of the other shafts. This reduces downtime significantly.


The product-range delivers Heating-Screw-Conveyors starting from a few kg/h up to 60t/h. On request there is an option to equip the package with a matching, modular insulated piping-system, which enables to connect the Heating-Screw-Conveyors onto a heat-transfer-medium in- and outlet point. All necessary valves and flowmeters as well as temperature measurement-units can be ordered preassembled to the piping-system.

For an optimal  implementation in your plant-layout, we offer various options for suitable heat sources such as high-temperature oil, different steam conditions as well as electrical trace-heating.

As some products may come in sticky and bridging condition, these usually easy adhere to the screw-flights which form an insulating layer. Depending on your bulk-solid, pasture or sludge, there is also a well-proven option to maintain clean surfaces on the screw-flights – this ensures an efficient heat transport right into the handled product.

For further details, please see Self-Cleaning-System.

KÖLLEMANN produces the Screw-Heat-Exchangers in accordance with standards such as AD2000 or ASME BPVC Sec.8 div.1 to ensure a maximum of safety during the handling of the heat-transfer-medium. (Certificates available in the download-area)

Since we produce each Heating-Screw-Conveyor fully based upon your special requirements, our sales-team is looking forward to assist you.

More information and brochures available in the download-section.