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ATOMFAIR® white lab freezer with a digital control panel, metal door latch, and square glass window on a bright background.

30L Low Temperature Freezing Test Chamber -50°C ATOMFAIR®

$3,200.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

30L capacity, -50°C min temp, 0.1°C resolution, AC 220V. Laboratory grade for material frost testing and biological sample storage. Order now.

SKU: AFMSEVOY350
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Description

ATOMFAIR® LOW TEMPERATURE FREEZING TEST CHAMBER

RESEARCH GRADE EQUIPMENT

1. Purpose & Features
The ATOMFAIR® AFDW5030L Low Temperature Freezing Test Chamber is a precision laboratory-grade -50°C 30L laboratory freezer suitable for low-temperature freezing tests and low-temperature storage of various products. Applications include frost resistance testing of pervious concrete pavement bricks, chemical and physical experiments, low-temperature testing of instruments and electrical appliances, low-temperature preservation of marine biological samples, and low-temperature testing of building materials. The unit consists of a low-temperature compressor, condenser, filter, capillary tube, evaporator, thermostat tank, digital display meter, and digital temperature control system, all housed within a durable corrosion-resistant alloy low temp chamber. For technical inquiries, contact inquiry@atomfair.com.

2. Technical Parameters
Parameter Specification
Capacity 30 L
Minimum Temperature -50 °C
Power Supply AC 220 V, 50 Hz
Temperature Resolution 0.1 °C
Ambient Operating Temperature 0–23 °C
Relative Humidity ≤75%

3. Structural Features
  • Opening Mode: Side hinged door for easy access and sample placement.
  • Insulation: Thickened insulation layer for excellent thermal retention and energy efficiency.
  • Inner Tank: Corrosion-resistant alloy plate ensuring long-term durability under repeated freeze-thaw cycles.
  • Outer Shell: High-quality steel plate with robust structural integrity.
  • Intermediate Filler: Polyurethane insulation material providing superior thermal barrier performance.
  • Operation: Easy to operate, ideal for laboratory use with intuitive digital temperature control system.

4. Notes
  1. Do not store or operate in damp environments or corrosive gas atmospheres.
  2. When starting for the first time or after long-term non-use, run the unit for 2 hours before testing to ensure accurate data.
  3. Turn off the power switch immediately in case of power failure; allow an interval of more than 30 minutes before restarting to avoid compressor damage.
  4. The unit must be supervised by personnel during laboratory operation.
  5. Prolonged operation when not in use is strictly prohibited.
  6. Tilt angle during transportation ≤45°; remove all packaging before use.
  7. Keep a distance of ≥50 cm from the rear wall and ≥15 cm from side walls. Place in a well-ventilated, dry area away from direct sunlight, water sources, heat sources, magnetic fields, and volatile/corrosive substances.
  8. Use an independent socket with current capacity ≥10 A and reliable grounding.
  9. Applicable voltage: AC 220–242 V / 50 Hz. If voltage is unstable, install a voltage stabilizer of more than 5 times the input power, adjusted to 220 V / 50 Hz / 15 A. The unit must be grounded.

5. Freezing Instructions
  1. Leave gaps between samples and between samples and the inner tank to ensure air circulation and uniform cooling.
  2. High-humidity or easy-dehydration samples must be wrapped in sealed food bags or plastic wrap to prevent frost buildup affecting cooling performance.
  3. Storage of volatile, flammable, explosive materials, strong acids, strong alkalis, gasoline, alcohol, etc., is strictly prohibited.
  4. Do not overload with excessive samples at one time to avoid slow cooling and continuous compressor operation.
  5. After testing, cut off power, remove samples, open the door for natural defrosting, drain water, and wipe the inner chamber dry with a soft cloth.

6. Operating Instructions

Read the manual carefully before use.

Pre-operation Check:

  • Use an independent grounded power socket; ensure voltage 220–240 V, frequency 49–51 Hz.
  • Confirm the panel switch is in OFF position.

Startup:

  • Plug in the power, turn on the panel power switch; the display shows the internal temperature. The compressor will run after a time delay.

Operation:

  • After the temperature reaches the set value, place samples evenly and gradually into the chamber.

Shutdown:

  • First turn off the panel power switch (display off), then disconnect the external power supply.

7. Maintenance & Care
  • Clean the inner chamber after each test. Disconnect power and remove items before cleaning; wipe off dirt and moisture.
  • Do not use boiling water, acidic agents, or chemical thinners.
  • Wipe dry after cleaning.
  • Gently clean the door gasket with mild soapy water.
  • Clean the outer shell with clean water or a small amount of neutral detergent; avoid wetting the power cord and lower wiring to prevent electric leakage.

8. Troubleshooting
Symptom Solution
Indicator off, no display Check power supply and plug connection.
Indicator on, compressor not working but humming Low voltage; install a stabilizer of more than 5 times input power.
Compressor stops within 1 minute and restarts repeatedly Abnormal voltage; handle as above.
Compressor runs normally but cools slowly Frequent/improper door closing; excessive or improperly placed samples; frost buildup inside.
Excessive noise Unstable placement; loose fasteners; contact between cooling tank and compressor.

For any questions or customization needs, please contact: inquiry@atomfair.com
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

Operate within specified environmental limits: ambient 0-23°C, relative humidity ≤75%, in a well-ventilated dry area free of corrosive gases, direct sunlight, water sources, heat sources, and magnetic fields. Maintain minimum clearances of 50cm from the rear wall and 15cm from side walls; use an independent grounded socket rated ≥10A with a voltage stabilizer if supply is unstable.

  • Electrical Safety: Ensure the unit is connected to a dedicated grounded power socket with current capacity ≥10A and that voltage is stabilized to 220V/50Hz/15A if line voltage fluctuates.
  • Environmental Restrictions: Avoid operation in damp environments or atmospheres containing corrosive gases, and keep the unit away from direct sunlight, water sources, heat sources, magnetic fields, and volatile or corrosive substances.
  • Material Storage Prohibition: Do not store volatile, flammable, explosive materials, strong acids, strong alkalis, gasoline, or alcohol inside the chamber.
  • Operational Constraints: Supervise the unit during operation, turn off power immediately during a power failure, and allow a minimum 30-minute interval before restarting to prevent compressor damage.
  • Transport and Setup: Maintain a tilt angle ≤45° during transportation and remove all packaging before use; after a long idle period, run the unit for 2 hours before testing to ensure accurate data.

Follow this procedure to safely start, load, and shut down the chamber, and to perform routine maintenance. Ensure the unit is properly grounded and placed in a compliant environment before proceeding.

Required Equipment: Independent grounded power socket (≥10A), Voltage stabilizer (5x input power capacity, if voltage unstable), Soft cloth and mild soapy water for cleaning

  1. Pre-operation Check
    Confirm the power socket is independent and grounded, voltage is 220-240V at 49-51Hz, and the panel power switch is in the OFF position.
  2. Startup Procedure
    Plug in the power cord, turn the panel power switch to ON, and allow the compressor to start after the built-in time delay.
  3. Load Samples
    After the chamber temperature reaches the set value, place samples evenly with gaps for air circulation, wrapping high-humidity or easily dehydrated samples in sealed bags.
  4. Monitor During Operation
    Supervise the unit continuously and do not overload with excessive samples to avoid continuous compressor operation and slow cooling.
  5. Shutdown Procedure
    Turn off the panel power switch first (display off), then disconnect the external power supply.
  6. Cleaning and Defrosting
    After testing, remove samples, open the door for natural defrosting, drain water, and wipe the inner chamber dry with a soft cloth.
  7. Maintenance
    Clean the door gasket gently with mild soapy water and avoid using boiling water, acidic agents, or chemical thinners on any part of the unit.

How does the ambient operating temperature range of 0-23°C affect the AFDW5030L's ability to achieve and maintain -50°C?

The AFDW5030L is designed to operate within an ambient temperature of 0-23°C. Operating outside this range can degrade cooling performance and may prevent the chamber from reaching its minimum -50°C or maintaining stable temperatures. The temperature resolution is 0.1°C, but ambient conditions directly influence compressor efficiency and thermal retention.

What sample types or chemical materials are incompatible with the AFDW5030L low-temperature chamber?

The AFDW5030L strictly prohibits storing volatile, flammable, explosive materials, strong acids, strong alkalis, gasoline, and alcohol due to safety hazards and potential damage. High-humidity or easy-dehydration samples must be sealed in moisture-proof wrapping to prevent frost accumulation that impairs cooling. The corrosion-resistant alloy inner tank is not rated for corrosive substances.

What are the required power supply specifications and restart intervals to avoid compressor failure in the AFDW5030L?

The AFDW5030L requires an independent grounded socket with current capacity ≥10A and stable voltage of AC 220-242V/50Hz. If voltage is unstable, a stabilizer of at least 5 times input power (adjusted to 220V/50Hz/15A) must be installed. After any power interruption, wait at least 30 minutes before restarting to prevent compressor damage; upon first use or after prolonged idle, run for 2 hours before loading samples.

The AFDW5030L is a 30L -50°C freezing chamber with a corrosion-resistant alloy inner tank and polyurethane insulation, suitable for low-temperature storage and testing of materials and biological samples. Its digital temperature control provides 0.1°C resolution, but it requires stable environmental conditions (0-23°C, ≤75% RH) and careful sample loading to maintain performance.

Positive

  • Precise digital temperature control: The unit features a digital temperature control system with 0.1°C resolution, enabling accurate low-temperature setpoints down to -50°C for reproducible freezing tests and sample storage.
  • Durable corrosion-resistant construction: The inner tank is made of corrosion-resistant alloy plate and the shell is high-quality steel with thickened polyurethane insulation, providing thermal retention and long-term resistance to aggressive sample environments.

Trade-offs

  • Strict ambient and power requirements: Operational ambient temperature must be between 0-23°C with relative humidity ≤75%, and the unit requires a dedicated grounded socket with ≥10A capacity. Unstable voltage necessitates an external stabilizer of >5x input power to prevent compressor damage.
  • Sample loading and maintenance constraints: Samples must leave gaps for air circulation, high-moisture items require sealed wrapping, and overloads must be avoided. After each run, the chamber requires defrosting and interior drying, and the unit must not be used with volatile, flammable, or corrosive materials.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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