Blade freezer -45 degrees to -110 degrees cryogenic cold sources, blade freezer, now on behalf of the industrial production has played a huge role, replacing the old method of liquid nitrogen cooling, blade freezer with the Freon pressure mechanized shrink cooling, the provincial , the energy-saving, environmental protection, was ordered long cryogenic unit, -135 ? ~ -40. compared to the process used liquid nitrogen refrigeration costs by 5 to 8 times, and the the deep modern industrial Cooling treatment of choice. ? cryogenic liquid cold source, unit equipment imported semi-closed low-temperature screw compressor or piston compressor, the main components are internationally renowned brands, adopt advanced PLC and microcomputer control system, with stable performance, safe and reliable.