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freezer, fast freezing with 5mins makes no damage of tissuecells and maintain original quality100%., power saving and high yield - details see: https://www.machineto.com/fish-technical-freezer-10034279

cabinet quick freezer:

using liquid nitrogen as cooling refrigerant can rech to -196degrees ,but you can set as you need.

Liquid nitrogen temperature reaches -196 degrees when it touch with food the gas can take away heat faster.Ultra-low temperature and high heat exchange rate realize the real quick freezing.such rapid freezing makes ice crystals are smallest and also keep the food quality.this is also prevents the moisture lost,almost no loss;keep the color of the food,the original taste and quality.

WHY THE LIQUID NITROGEN FROZEN IS MORE SUPERIOR TO AMMONIA OR FREON?

Frozen in minutes speed-liquid nitrogen is one of the cryogenic refrigerant on the earth.

Rapid cooling way produce small ice crystals,can reduce the damage of the cell structure in order to improve the quality of the product.

Improve productivity-lower food dehydration and dry loss,improve texture,color and flavor of frozen food.

Ultra-low temperature frozen ,less area space.

Quick freezer
Model: SD-500KG/H
Technical Parameters
Frozen quantity		500KG/H
Demension		2500*2100*2200mm
Working temperature		+121°C~-190°C
Lowest temperature		-190°C
Maximum cooling rate		≤50°C/min
Maximum heating rate		≥ 8°C/min
Accuracy of temperature control		±1°C
Temperature uniformity		±2°C
The thickness of the insulation layer		100mm
Liquid nitrogen system		insulated pipe, the control valve, the nozzle, the dispenser
Air circulation system		motors, fans, air distribution device
Electrical control system		variable program controller, touch screen, PLC, alarm instrument AC contactor, intermediate relay, knobs switches, etc.;
Micro-pressure release valve		this valve will automatically emissions, when the cavity pressure is slightly positive pressure
Power supply		380V/50HZ
Configuration of the equipment
1.Main Body -- AISI304 stainless steel.
2.Thermal insulation material -- BASF of Germany's ultra-low temperature insulation material multi-layer composite structure.
3.Door seal -- Low temperature resistant silicone rubber imported from France,equipped with antifreeze die heating system.
4.High temperature disinfection device-- temperature up to +121 °C.
5.Efficient cleaning device-- health and safety.
Liquid nitrogen system
1. Liquid nitrogen system--- including liquid nitrogen tank (customer-supplied or optional),pressurization system, insulated pipe, control valves, nozzles, dispenser.
2.DINTOR - ASCO (imported from USA)--- ultra-low temperature solenoid valve to ensure normal opened at -196 °C;
3.Liquid nitrogen nozzles---consist of hundreds of micropores,fully gasify the liquid nitrogen, then gasification liquid nitrogen be ejected and circulated in the tank, to keep the temperature uniform;
4.High efficiency and low noise axial fan, return air distance is short, fast freeze, increased by 85% more efficient than ordinary freeze.
5.Unique wind farm design---make the wind speed and temperature of the frozen zone more uniform and stable.
Control system
1.Control mode-- Touch screen + PLC
2.Cylinder lock device-- to ensure that the door does not leak gas, and to easy to open and close the door.
3.Automatic locking function-- to ensure that the door is not open by misuse.
4.Interlock system-- if the door is not be closed well,the freezer will not work.
5.Warning system-- if the door is not be closed well,it will warn.
6.High and low temperature control-- PID regulator
7.Operating system -- English
8.Control instruments -- touch screen + PLC + instrument control mode;
9.Touch screen -- Taiwan
10.PLC -- Mitsubishi,Japan
11.Key switch -- IDEC,Japan
12.Control knob -- IDEC,Japan
13.Intermediate relay -- IDEC,Japan
14.Temperature transmitter -- PT100,Germany
15.AC contactor -- SIEMENS, Germany
16.Air circuit breaker -- SIEMENS,Germany
17.DINTOR -- ASCO,USA