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product name
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Liquid nitrogen cryogenic machine/Ultra-low temperature testing machine/Ultra-low temperature box/Ultra-low temperature freezer(Low temperature test chamber)
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application
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Ultra low temperature box uses liquid nitrogen as the cooling medium,Perform cryogenic testing,Thereby improving the performance of the tested sample,Mainly applicable to industries such as metal materials, aerospace, quality inspection and scientific research, and colleges and universities.
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Box Structure
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The ultra-low temperature box body is processed and formed by CNC machine tools, with a beautiful and elegant appearance, and adopts non reactive handles for easy operation;
The inner liner of the box is made of imported high-grade stainless steel（SUS304）Mirror panel, outer shell of the box adoptsA3Steel plate spraying increases the appearance texture and cleanliness;
The large observation window is equipped with lighting to keep the inside of the box bright, and uses tempered glass embedded in the heating body to observe the condition inside the box clearly at any time.
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control system
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The temperature control of the ultra-low temperature box adopts a fully imported touch button instrument, with simple operation and setting;
After inputting the data and experimental conditions, the controller has a locking function to prevent human touch from changing the temperature value;
Optional printer.
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refrigeration system
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Double layer glass reactor with coil: The outer layer can be evacuated for insulation, and the kettle is heated, cooled, and heated by corrosion-resistant and heat-resistant heat exchange coils;
Double layered glass reactor with insulation cover: insulation cover insulation,Equipped with a transparent visual window (which can be evacuated or filled with anhydrous honeycomb calcium chloride, etc.), the glass surface on the window is low-temperature and frost free, and the interlayer is heated and cooled with thermal oil for temperature rise and fall;
Three layer glass reactor: The outer layer of glass is vacuum insulated during processing, and the interlayer is heated and cooled with thermal oil for temperature rise and fall. A multi wing fan is used for strong air circulation to avoid any dead corners and ensure even temperature distribution in the testing area. The design of wind path circulation for air outlet and return ensures that the wind pressure and speed meet the testing standards, and can quickly stabilize the temperature at the moment of opening the door.
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Compliant with standards
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GB/T2423.1-2008、GB/T2423.2-2008
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Product images
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model
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CDW-100
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CDW-225
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CDW-500
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CDW-800
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CDW-010
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Working SizeD×W×H
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450×450×500
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500×600×750
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800×700×900
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800×1000×1000
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1000×1000×1000
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External dimensionsD×W×H
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1150×1050×1750
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1200×1100×1900
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1450×1400×2150
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1500×1550×2200
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1720×1580×2280
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powerA/B/C/D(kw)
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3.0/4.0/4.5/6.0
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3.5/5.0/5.5/6.5
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6.0/7.0/7.5/8.5
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7.0/9.0/11.0/12.5
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9.0/10.0/11.5/13.0
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performance index
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temperature range
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RT～-220℃(adjustable)
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fluctuate/Uniformity
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±0.5℃/±2℃
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heating up time
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1.0～20℃/min
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Cooling time
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0.7～20℃/min
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Temperature operation control system
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controller
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ImportLEDDigital displayP•I•D+S•S•RMicrocomputer integrated controller
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Accuracy range
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Setting accuracy: temperature0.1℃, indicating accuracy: temperature0.1℃, Resolution:0.1℃
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temperature and humidity sensor
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Platinum resistancePT100Ω/MV
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Heating system
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Fully independent system, nickel chromium alloy electric heating heater
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refrigeration system
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liquid nitrogen
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circulatory system
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Temperature resistant and low-noise air conditioning motor.Multi blade centrifugal wind turbine
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Using materials
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External material
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High quality carbon steel plate.Phosphating electrostatic spraying treatment/SUS304Stainless steel matte surface line hairline treatment
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Inner box material
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SUS304High quality mirror finish stainless steel light plate
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Insulation material
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Polyurethane rigid foam, ultra-fine glass fiber cotton
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Door frame insulation
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Double layer high and low temperature aging resistant silicone rubber door sealing strip
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Standard configuration
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Multi layer heating defrosting with illuminated glass window1Set, sample rack2Test lead holes（25、50、100mm）1individual
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Safety protection
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Leakage, short circuit, overheating, motor overheating, compressor overpressure, overload, overcurrent protection
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Timing
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0.1～999.9（S、M、H）Adjustable
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supply voltage
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AC380V±10％50±0.5HzThree-phase five-wire system
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Environmental temperature for use
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5℃～＋30℃≤85％RH
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Note:1、“CDW”doUltra lowTemperature test chamberThe model.
2The above data are all at ambient temperature（QT）25℃.Measured under no-load conditions in the studio
3Customized non-standard models can be made according to specific user requirementsUltra lowTemperature laboratory'
This technical information is subject to change without prior notice
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