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Universal cooling tunnel

Our universal cooling tunnel is a proven cooling tunnel for cooling of chocolate enrobed products. Uniform crystallization is ensured through the use of convection and/or radiation cooling from above, along with air-cooled bottom plates.

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Key benefits

Easy access for cleaning and maintenance

Fabricated in stainless steel with easy access for cleaning and maintenance.

Efficient insulation saves energy

The use of effective high-quality insulation and excellent seals saves energy and allows better temperature control in the cooling tunnel for repeatable product quality.

Perfect coating results

The precise setting of the cooling curve with the possibility of radiation and/or convection cooling ensures the perfect crystallization of the chocolate, as well as a glossy finish.

Universal cooling tunnel

High end product quality

Precise setting of the cooling curve

The perfect crystallization of the chocolate is ensured by a precise setting of the cooling curve along with the option of radiation and/or convection cooling.

Operating principle

Convection and/or radiation cooling and air-cooled bottom plates

For uniform cooling and crystallization results the products can be cooled from the top using convection and/or radiation air cooling and from the bottom using air-cooled bottom plates.

High quality sturdy design

Thick insulation and air-tight seals

Alongside the precise temperature control, the insulation and seals are important for efficient cooling, so as to avoid condensation and air leakages. Bühler cooling tunnels are characterized by their proven insulation quality and thickness, as well as by their excellent seals.

Food safety

Stainless steel fabrication

The cooling tunnel is made of stainless steel ensures high standards of hygiene. As well as parts that come into contact with the product, the cladding, hoods and frames are also made of stainless steel.


Modular setup

The cooling tunnels have a modular design, which enables them to fit both the product and the space requirements.

Key topics

Billions of people come into contact with Bühler technologies to cover their basic needs for food and mobility every day. Our motto is creating “innovations for a better world.” Find out more about our key topics.

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