MECAIR MA-R is a spiral coolers working with air; MECAIR MA-P is spiral pasteurizers working with air.

The product to be thermally-treated is placed on a flexible belt, either orderly or randomly, where the product remains motionless. The belt runs a spiral-shaped path where the product is subjected to a strong flow of cold/hot air. Frequently, the heat treatment is followed by a cooling phase.

The belt drive is based on a simple and reliable central drum system and requires low tensioning for correct operation. The dwell time/speed of the belt is regulated with frequency variators.

A special horizontal air circulation system ensures a high degree of temperature uniformity across the belt.

The whole system is enclosed within an insulated cabin.

Each standard MECAIR MA-C and MA-P system can be individually configured to match customer needs and specifications.