Process Equipment (Pastillating and Cooling Systems)

Steel belt cooler

The Berndorf Band Group offers a wide variety of steel belt systems precisely made to the customer’s specifications and requests. Among others, the company supplies steaming tunnels, steel belt dryers and steel belt coolers. The company’s focus is also on producing single and double belt coolers.

These machines are used to solidify molten materials into panels, strips, flakes or pastilles. This step of the process can be performed on one belt or between two belts. Thanks to the close cooperation with our business partners, we are also capable of manufacturing comprehensive systems designed to pastillation.

Steel belt coolers engineered by Berndorf Band Group are used for a wide range of processes – from cooling and crystallization to the pastillation of various granules, chemicals and foods. During solidification process, the material is molten by a reactor, extruder or kneader and deposited onto a steel belt in sheet, strip or pastille form. Solidification takes place on a single belt cooler (manufactured on one steel belt) or a double belt cooler (manufactured between two steel belts).

To satisfy their customers’ requests, Berndorf Band Group offers various feeding and post-processing devices that complement their steel belt coolers perfectly. To allow the processing of low viscosity materials, the belt edge may be fitted with product retaining strips. Based on the properties of the material and the shape of the product, the experts at the Berndorf Band Group assist our customers in composing the most suitable system. Thanks to their unique construction, the systems are capable of manufacturing premium-quality end products with utmost efficiency.


Single belt cooler

Single belt coolers are an exceptional choice for low viscous materials with minimum specific heat, and low density as well as for the manufacture of molded materials such as pastilles or the processing of various flakes or high viscosity strips.


Double belt cooler

The double belt cooler is used for processing materials of low and medium viscosity. Common devices attached at the beginning of the steel belts are overflow feeders or press rollers.


Double belt cooler without press rollers (NR)

This device is used to roll the fed material into sheets: The material is pressed at the inlet by the infeed drums of the steel belts and efficiently cooled by making contact with top and bottom steel belt. This cooler is also an exceptional fit for materials with a high viscosity of up to 100,000 mPa.s and a high melting viscosity. As a result, materials such as toners, EMC (epoxy molding compounds), powder paints and flakes made of phenolic, polyester and acrylic ester-styrene resins can be processed with superior quality.


Neopentyl glycol cooler (NPG)

Neopentyl glycol coolers (NPG) are constantly upgraded and enhanced by further NPG properties. Berndorf offers fully optimized NPG steel belt coolers. This level of optimization is guaranteed by straightforward maintenance and a constant load of operation.

The belt coolers are tailored to the specific requirements of the customer and, therefore, ensure smooth and trouble-free processing.

Neopentyl glycol is most commonly used during the production of automotive and marine paints as well as polyurethane.


SC-type steel belt drum cooler

Thanks to its combo design with cooling drum and steel belt, this cooler is a particularly space-saving and compact model. The machine is exceptionally well-suited for projects in the area of research & development and for pilot stage of production.


Cooling drum

Used primarily in the chemical and food industry, the cooling drum is a device used to cool, harden and subsequently crush flakes. Molten granule is fed to the press roll by an extruder and then rolled to predefined thickness. While passing through the steel belts and a rotating cooling drum, the material is being cooled and solidified by cold water inside the drum. The panel is subsequently crushed into smaller pieces outside the drum by a crusher. This process produces smaller-sized flakes. These can then be used to manufacture such products as granules, powder coatings, chemical products and toners.