Blast frezers upto -60*c

[ismayil59@yahoo]

Hi palls we are looking for a blast freezer to freez tunas to-60*c con some one sugest a
good brand and some more detailes like wich
refrigerant to use

[smpsmp45]

Why one wants -60 Deg C????

You may need brine freezers

[ismayil59@yahoo]

We are a sea food exporting co our customer wants it to be done in that way. can you give me some more details about brine freezers please.

[valterb]

-60°C...
Nh3 nitrogen cooling systems.

but you must accept to waste nitrogen, or if you can recover on other plant.
In pharma industry its usual.
if you need i can send you a link

[jepoy_02]

hi, i am also supposed to design a blast freezer with -60C room temperature. won't ammonia or co2 be enough for this temperature level? also, there is a combination of other rooms at different temperatures (-30C cold store, then other high temperature rooms). any advise on a good system for this would be very much appreciated. thanks!

[IceMan_4000]

http://www.mayekawa.co.jp/en/special.html

Check out the Air system it was designed for Tuna since it is a requirement of -65C in Japan for Tuna.

If you let me know were you are located I can get you a contact number for your closest Mayekawa rep