Composed of a compressor, condenser, evaporator, filter drier, expansion throttling valve of the five most series, note the amount of refrigerant inside (refrigerant), the electrical appliances (including controller) according to the requirement of the environment and control the operation of the compressor to achieve the purpose of heat transfer and refrigeration.
Mainly used in industrial cold treatment, the uniform, fine and dispersed carbides produced on the metal structure matrix structure are precipitated. The appearance of such carbides will result in a significant increase in the wear resistance and friction properties of the metal, an increase in hardness, and will directly increase the life of the wear parts. The ideal product to replace liquid nitrogen.
- Microcomputer control, cascade temperature controller, digital temperature display, the regulation of unit 0.1℃, inside the temperature range -20 ℃ ~ -125 ℃ adjustable.
- Multi-safety protection, more reliable operation.
- France TECUMSEH compressor, Germany DANFOSS compressor, EMERSON compressor, automatic cascade refrigeration technology.
- With self-diagnosis function, freezer overload protection, high-pressure switches, overload relays, thermal protection device and other security functions, and fully guarantee the use of safety.
- Three sealed mold layer of insulation, Extra-thick high-density polyurethane foam insulation layer, the effect of good insulation; Inline vacuum insulation panels.
- Human design, more convenient and flexible.
- Suitable for mechanical producing plant use.
- Used for shrinkage of copper sleeves, bearings, etc., widely used in precision mechanical assembly. Applied to ultra-low temperature testing of large equipment.
|Designed bearing capacity is two times of the standard one, (refrigeration system is designed according to the standard capacity when target artifact weight is greater than the standard capacity, the cooling rate will decrease)|
|Temp. range||-80°C~-10°C Optional -80°C～60°C|
|Cooling capacity at -75℃||1kW||1.5kW||2.5kW||1kW||1.5kW||2.5kW||4kW|
|Nickel-chromium alloy electric heating heater, the controller has double safety protection, with independent temperature limiter protection.|
|Cooling rate||(ambient temperature of 25 degrees, no-load, from 60 degrees to -75 degrees about 1 hour).；cooling rate will be a little different for temperature changes.|
|Controller||S7 PLC multifunctional controller|
|Operation panel||7-inch color touch screen, display set temperature, measured temperature.|
|Temp. record||Temperature curve and fault record, U-disk data export, excel format.|
|Inside circulating air||1650 m³/h||2100 m³/h||2750 m³/h||2100 m³/h||2750 m³/h||3500 m³/h||6000 m³/h|
|When it is open, the internal circulation fan automatically turns off. The touchscreen displays open state.|
|Intermediate heat exchanger||Plate heat exchanger|
|Expansion valve||Electronic expansion valve|
|Evaporator||Copper-tube with aluminum-fin|
|Cooling Type||Air-cooled with water-cooled auxiliary functions (Ensure good cooling capacity when temp. above 30 degrees)|
|Means of insulation||Polyurethane foam insulation, thermal insulation layer 125 mm, with embedded FIR boards|
|Safety Protection||Self-diagnosis function; Phase sequence phase failure protection; leakage protector; cooling unit overload protection; high and low pressure switch, overload relay, thermal protection device, high temperature protection and temperature fault protection.|
|Case material||Outside is cold rolled steel painting, internal is SUS304 wire drawing board.|
|Power 380V 50HZ||7kW MAX||11.5kW MAX||15kW MAX||7kW MAX||11.5kW MAX||15kW MAX||21kW MAX|
|Optional||High temperature reaches 150degree and temperature accuracy is ±0.5degree；the input power will be changed（When select this model, the thickness of thermal insulation layer will be 150mm，thermal insulation material will be silicate and vacuum plate）|
|Optional||Closed circulating oil heating system, no direct electric heating element inside the box, suitable for flammable products test|
|Optional||Temp. accuracy ±0.5℃|
|Optional||Cooling and heating program controlled, meet cold treatment process requirements(can set 5 programs, each program can edit 40 steps.)|
|Optional||Interior door, reduce cooling capacity lost when picking small workpieces (temperature below 60 degrees optional)|
|Optional||Outside SUS304 wire drawing board case|
|Optional||Diameter 50mm cable hole|
|Optional||Electric heating vacuum glass observation window (with lighting) 200mm*300mm|
|Optional||Low temperature automatic defrost (can be once per hour or use manual button to defrost), ensure it can work at low temperature for long time even the door is open and close frequently）|