The SERAP Group
About us Our history Our production Factories Industrial site in Gorron, France Industrial site in Halol, India Logistic platform in Guadalajara, Mexico Plurinox industrial site in Batatais, Brazil Industrial site in Replonges, France Our distribution network Our quality management policy Our R&D department Press corner Press release Graphic charter
Milk coolers
Our range of milk coolers SERAP - Experts in milk cooling solutions Closed milk coolers from 550 to 30,000 Liters capacities FIRST.SE MILK COOLER FIRST.SC MILK COOLER FIRST.CS MILK COOLER Vertical milk cooler from 10,000 to 40,000 Liters capacities The RAINBOW washing cabinet Open milk coolers from 225 to 2,000 Liters capacities FIRST.S MILK COOLER FIRST.SU MILK COOLER Energy savings during milk cooling ECOTEMP SERATEMP HRU : Heat Recovery Units MILK PRE-COOLING Mobile closed milk coolers Instant milk cooling systems Milk Cans cooler Our solar solutions for milk cooling
Wine processing
Our expertise in wine-making Projects Our range of wine-making tanks Wine-making and storage vessels ST truncated tank SC cylindrical tank Compartmented tank SP parallelepipedic tank SE elliptical tank Wine storage tanks Thermal treatment units Mobile Tank Punching down trolley Walkways for wine-making units Heat exchangers Grape harvest cooling tunnel
Industrial processing
Our expertise in industrial process equipment Our equipment for industrial processing
Cryogenic freezing
Our cryogenic freezing equipment Our cryogenics expertise Cryo tunnel - ZF3 Cryogenic tunnel - CFP Cryo immersion unit - CFV First Freeze cooling tunnel Our partner AIR LIQUIDE
Customer service
Customer Service - Spare parts and accessories Technical support Technical training
Come and find us in 2021 in professional trade shows : wine, animal production, industrial processing ! SERAP Industries awarded €700,000 through the "France Recovery " Plan
Jobs & careers
Join us Our Technical expertise Stainless steel boilermaker Machine operator Installation, assembly and refrigeration technician Application form
ContactClient area


Route de Fougères
53120 Gorron

TEL. +33 (0)2 43 08 49 49
FAX +33 (0)2 43 08 66 19


The cryogenic tunnel specially designed for grape harvest cooling

Relatively precise temperatures are required at all stages of the wine-making process ? from the moment of grape harvesting to tasting of the end product. Controlling these temperatures is therefore a key factor in the success of wine making, ageing and tasting.


  • AISI 304 (1.4301) stainless steel insulated inline tunnel
  • Can operate with either liquid nitrogen (LN2) or carbon dioxide (CO2).
  • Temperature control regulation.
  • Variable speed stainless steel product conveyor belt.
  • Opening lid comprising several parts.
  • Frame with casters.
  • In partnership with Linde Gas.


Compact, mobile device that can be easily integrated into a reception line.
Simple, robust machine.
Can operate with a full or de-stalked harvest.
Easy to use without constant need of an operator.
Quick and even refrigeration.
Wide range of applications.
Simple to clean due to easy access to the various components.
Respects products and limits oxidation.
On tunnel output (belt or tank) the grapes are kept in a neutral gas atmosphere to protect them from the air.

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