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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, straight 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. 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
Dorner, 13½" wide x 94" long stainless steel table top conveyor. 13½" wide and 94" long Intralox belt has an infeed and discharge height of 35". Equipped with a ½ HP drive, variable speed control and mounted on locking casters.
OAD: 98"L x 35"W x 38"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
Scandia, Model 720, automatic, turret type over wrapping machine. Rated from 50 to 350 CPM – depending on materials, application and machine configuration. Package size range: 1(5/8)" to 3¼" in Length; 3½" to 7½" in Width; (7/16)" to 1½" in Height. Equipped with 6" wide x 70" long infeed belt, 24" long top chain transfer section set on 12" centers, film feed head, knife film cutting section, (6) station rotary turret, film tuckers, lugged delivery chain, tear tape applicator, side tuckers and folders and 18" long dual heating section. Control panel with an AB PLC and touch screen HMI.
OAD: 190"L x 40"W x72"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
Air Products Model "Cryo-Quick" 48" wide x 50′ long liquid nitrogen freeze tunnel with amount of product per hour – depending on materials and application. 304 stainless steel construction. Equipped with 12 liquid nitrogen spray nozzles, 48" wide x 50′ long stainless steel mesh weave product conveyor belt, with 30" long product in feed load area and has 4" high clearance into tunnel. (7) 1 Hp variable speed top mounted Sterling Electric re-circulating chamber fans and (9) hinged flip-up tunnel covers (each side). Top exhaust duct and liquid nitrogen inlet, R-30 insulation and has a remote controller with Nema 4 door, and Plexiglas window. Mounted on heavy duty base frame.
OAD: 50′ L x 68" W x 68" H
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