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A freeze tunnel is a process where the materials to be frozen are placed on an endless conveyor and passed through the tunnel where the refrigerants are used to cool the air and through circulation allow the material to become frozen. Other variations of the freeze tunnel process are the direct immersion tunnel systems where the refrigeration media is sprayed onto the product. This is a cryogenic freeze tunnel. A final variation of the freeze tunnel process is a quiescently frozen process for freezing materials in molds such as frozen ices in cups or forms and frozen in that shape and removed upon freezing for final wrapping. The refrigerants can be either chiller brines or cryogenic gases for achieving the required degree of freezing.
Liquid Carbonics, Model JE-U4, 40" wide x 256" long, inline, carbon dioxide (C02) refrigerant (2) zone freeze tunnel, with amount of product per hour – depending on materials, application and machine configuration. Welded modular stainless steel construction. Equipped with 40" wide x 292" long stainless steel mesh weave product conveyor belt with 33" in feed and discharge height, 256" long chamber with (5) sets of spray nozzels and 40" wide x 9" high aperature. Cryogen temperatures can reach as low as -320°F, and overall internal freezer temperatures can reach -150°F. Control panel has push button start / stop for fans, infeed / discharge blower, conveyor and cryogen. Mounted on multi-leg stainless steel frame.The Model JE-U4 is easily adjusted to meet the chilling and freezing requirements of a wide variety of both cooked and raw products.
OAD: 300"L x 60"W x 101"H
CES 3-pass nitrogen freeze tunnel with amount of product per hour – depending on materials, application and machine configuration. Stainless steel construction. Equipped with 48" wide stainless steel wire rod product conveyor belt, 55" tall infeed, 32" tall discharge, with 7" clearance between belt levels. Top belt is 33 feet long, middle belt 32 feet long and bottom belt 34 feet long. Control panel with touch screen HMI.
OAD: 475"L x 86"W x 90"H
Frigoscandia Model AGA, in line, stainless steel, cryogenic, nitrogen gas, belt style freeze tunnel with temperatures and number of product per hour – depending on materials, application and machine configuration. Equipped with 47" wide x 8" high aperature x 250" long stainless steel nitrogen freeze chamber with access covers and 47" wide x 286" long stainless steel mesh conveyor belt with 40" in feed and discharge heights, has nitrogen freeze zone and nozzles, with (7) top mounted turbulation circulation fans, spray header, gas exhaustion manifold and temperature probes. Control panel has temperature and freeze time, evacuation and belt speed controllers with e-stops. Mounted on stainless steel (4) leg frame. Model AGA, Continuous in-line belt freezer designed for gentle product and minimum loss of product weight during freezing.
OAD: 324"L x 68" W x 70" H
Air Products, Model Freshline Quick Start, stainless steel, Liquid Nitrogen freeze tunnel. Equipped with 278" long (3 section) tunnel chamber, 40" wide x 4" high aperture with adjustable height shield, flip-up access doors, side hand cranks for lowering the bottom section of tunnel and 8" OD exhaust duct. Link belt conveyor 38" wide x 315" long. Quick Freeze system with liquid nitrogen spray nozzles for direct contact with product. Controller with operator interface, digital readout for freezer and exhaust temperature, product retention time and conveyor speed controls. E-stops on each end of the tunnel. Mounted on height adjustable legs. Rates dependent on materials, application, and machine configuration.
OAD: 331" L x 66" W x 63" H
Praxair / Liquid Carbonics / Cryogenic Systems Equipment, compack, stainless steel, cryogenic, LN2 (liquid nitrogen) freeze tunnel with amount of product per hour – depending on materials and application. Equipped with 107" long freeze tunnel and has 36" wide x 3-1/2" high total aperture with dual 107" long flip up side access doors one each side with (2) sets of (7) liquid nitrogen inner chamber spray nozzles and (2) inner chamber circulation fans with a 107" long x 34" wide stainless steel solid flat band product conveyor belt with 36" high in feed and discharge chutes and top mounted LN2 (liquid nitrogen) injection panel. Control panel has ABB controllers with spray system and fan on / off switches, pressure gauge with 0 to 210 psi and 0 to 30 Hg vacuum ratings. Mounted on a heavy duty stainless steel base frame.
OAD: 200" L x 80" W x 94" H
Hollymatic IPS Model CK Cryotransfer, right to left liquid nitrogen flash freeze tunnel with temperatures and number of product per hour – depending on materials, application and machine configuration. Equipped with 256" long stainless steel freeze chamber with (4) easy access, hydraulic piston assit flip up / clamp down covers and 24" wide x 276" long stainless steel mess conveyor belt with 4-1/2" product clearance and 36" in feed / discharge height. Cold gas recirculation zone along most of the of tunnel with top mounted turbulation fans and a liquid nitrogen spray zone located near the end of tunnel with liquid nitrogen input valve, pressure gauges, spray nozzles and unused liquid nitrogen collection pan to recirculation system with exhaust manifold and fan. Control panel has temperature, gas flow / balance, liquid nitrogen and conveyor controllers. Mounted on (4) leg base frame.
OAD: 276" L x 72" W x 63" H
Cryogenics System, 36" wide x 22′ long, C02 freeze tunnel, 304 stainless steel construction. Equipped with (3) 60" sections with pneumatic flip up, clamp down covers, with 36" wide x 22′ long stainless steel mesh product conveyor at 36" in feed and discharge height, 26" of product in feed load area, 18′ of freezer area and 2-3/4" high clearance and (3) 1 Hp variable speed, top mounted chamber fans. Product per hour dependent on materials, application and machine configuration.
OAD: 23′ L x 90" W x 62" H
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