1. The frozen capacity is 2000kg/hour. 2. The iqf liquid nitrogen quick freezers--- work temperature--ordinary~-190℃，can be set arbitrarily. 3. Cooling rate--- 1~50℃, can be set arbitrarily. 4. Minimum temperature inside--- ≤-190℃ 5. Maximum cooling rate---≥20℃/min 6. Insulation thickness---150mm to ensure that the temperature of the outer surface of the device when high and low temperature is room temperature. 7.Liquid Nitrogen systems—including heat-insulated pipe, valve, nozzle, distributor, using multi-point injection into liquid nitrogen to ensure that trap temperature uniformity. 8.Air circulation system inside the box, including motor, fan, air Distribution Unit.