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We offer a variety of Thermofin air coolers optimized for deep, shock freezing. Coolers designed for floor mounting and adapted to work with the R717 (NH3) refrigerant. Equipped with axial fans with diameter: 500 or 630 mm, which force or draw air from the block fin tubes. Nominal capacity ranges from 19.8 to 168.5 kW. Coolers provide high freezing capacity for all ranges of products, and are used where a rapid drop of temperature is required. Air flow ranges from 16 486 to 111 618 m³/h.

TAFN Thermofin air coolers. It is fitted with standard body made of galvanized steel with RAL 9010 powder coated structure that is durable and has a self-supporting structure. Double insulated trays for low-temperature chambers, fan heaters, lowered defrosting shutters (with or without motor), shut-up and variable fin spacing are accessories available for this series of coolers.

Fins made of pure aluminium with a finspacing of 7.0; 10.0 or 12 mm. Possibility of special versions on request, with a variable spacing, e.g. 20/10 mm, 24/12 mm, 28/14/7 mm, 40/20/10 mm. The variable spacing of the fins ensures longer operation time of the device - greater throughput of tunnels, extension of the time between successive defrosting cycles and energy savings. It is mainly used in cooling chambers, freezing tunnels (Heinen). The fin blocks are defrosted with hot gas or brine.


Lowered defrosting shutters (with or without motor)


Characteristics of TAFN air coolers

  • nominal capacity: from 19.8 to 168.5 kW
  • air flow: from 16 486 to 111 618 m3/h.
  • axial fans:
    • from 2 to 8 pcs with a diameter of: 500, 630 mm
    • one-way air discharge: fans force or draw air from the block fin tubes
    • external rotor motors with IP54 protection class
    • motors equipped with thermal protection on the winding
  • refrigerant: R717 (NH3)
  • block fin tubes:
    • aluminium fins
    • fin spacing: 7.0; 10.0; 12.0 mm
    • parameters of block: 50 x 50 mm
    • tubes 16 mm, stainless steel



  • a project tailored to the individual needs of the client


  • defrost louvers connected to a hot gas or glycol defrost system
  • can be made of various materials
  • construction of shutters with motor or pneumatic drive

Variable spacing between fins

  • extension of the time between subsequent defrosts,
  • longer device operation time - higher capacity of tunnels,
  • energy saving - defrost


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