Acmas Technologies Pvt.Ltd.- Test Chamber Manufacturers Suppliers & Exporters

Ultra Low Temperature Freezer Manufacturers, Ultra Low Temperature Freezers Suppliers

Plasma Freezer


Weiber Ultra Low Temperature Freezer provides an ideal freezing environment for advanced medical and industrial applications. The Plasma Freezer offers unrivalled cold storage protection for valuable samples and materials. These Freezers maintain internal temperatures of -86°C (-123°F). The refrigerators are equipped with auto defrosting device. The highly efficient microprocessor based Rapid Plasma Freezer are easy to operate and occupies minimum space. These are widely used in scientific research labs for long term storage of critical samples, offering exceptional temperature uniformity with excellent sample protection. The products also knowns as Ultra Low Temperature Freezers.

  1. High-tech construction combines vacuum panel insulation with environmentally-friendly, water-blown foam insulation for maximum sample-to-vial footprint storage.
  2. Environmentally-friendly, CFC/HCFC free refrigerants
  3. Power management system protects against a wide range of voltage variation and is easily accessible through the touch-screen display.
  4. Microprocessor based control system.(HMI+PLC optional)
  5. Defrost cycle can be initiated to shut down the compressor and keep the cabinet defrost free.
  6. Ergonomic and easy to use.
  7. USB ports for PC connectivity.
  8. RS 232/485 connectivity
  9. CFC/HCFC-free refrigerants maximize cooling and minimize environmental impact
  10. chart recorder for better temperature monitoring (optional)
  11. Corrosion resistant interior and exterior
  12. Incident monitor provides visual and audible warnings of system abnormalities for increased sample protection.
  13. Digital display and direct settings for maintaining desired operations.
  14. Castors for ease of movement
  15. Lockable hinged doors

Weiber Ultra Low Temperature Freezer is double walled cooled units. Outer body of our laboratory refrigerators are constructed out of thick PCRC, pre coated corrosion resistant GI sheet duly pre-treated with primers and rust proofing and painted with long lasting stove enamel or elegantly powder coated.The inner construction is made of stainless steel sheet-304. The 100 mm gap between the walls is filled high grade polyurethane insulation, which ensures maximum thermal efficiency.

  1. Cooling:
  2. An energy efficient cooling unit is installed in our freezer. We use high end CFC free compressors of Kirloskar/Tecumseh / Bitzer/ Danfoss make, conforming to latest international standards and guidelines.


    • Capacity modulation and precision cooling
    • High Energy Efficiency
    • Compact
    • Proven Technology
    • Wide Voltage Range
    • Superior quality wear resistant part
    • Improved SEER (Seasonal Energy Efficiency Ratio) - improved SEER gives more efficiency.

  3. Cooling medium: air cooled CFC free refrigerants.
  4. Temperature Range: Temperature range is -10o C to -86o C controlled by nanotechnology based microprocessor temperature controller.
  5. Temperature accuracy is +/- 1°C or better
  6. Alarm System:
    • Power failure or temperature deviation triggers audible and visual warning.
    • Automatic Incident Monitor identifies temperature deviation beyond alarm setpoints.
    • System includes adjustable safety alarm with automatic, continuous charge battery backup and digital battery indicator.
    • System includes touchpad alarm test function RS-232 data port with system software.
    • Exterior alarm contacts for connection to remote monitoring system.
  7. Monitoring System:
    • Lifeguard compressor protection to monitor performance and automatically adjust to internal and external conditions
    • Extreme Ambient Alert that warns if room temperature can affect performance
    • Voltage Boost Indicator that advises of low source voltage below safe parameters and indicates voltage boost system is activated
    • On-board power monitoring with digital readout of incoming line voltage
  8. Freezers are equipped with an internal voltage regulator and voltage compensation system to ensure a longer compressor life.




Capacity Exterior dimension (WXDXH)mm Interior dimensions (WXDXH)mm
218 liters 940x840x1552 582x470x768
328 liters 940x840x1999 582x470x1200
388 liters 940x840x1999 600x538x1200
538 liters 940x840x1999 650x600x1345
828 liters 1230x996x2056 930x710x1323

Customizable sizes are also available.


Upright model

Volume (L) Exterior dimension (WXDXH)mm Interior dimensions (WXDXH)mm
120 846 x 1981 x 940 584 x 978 x 429
610 800 x 815 x 945 660 x 640 x 330
1000 800 x 815 x 1645 660 x 640 x 870

Customizable sizes are also available.



Temperature range -10°C to -86°C
Accuracy ±1 °C
Power Requirements 220/230V, 50Hz
Controller Microprocessor based
Chart recorder 7-day optional
Insulation Polyurethane foam
Compressor Air cooled
Display LCD
Defrost option Provided
Specimen protection Provided
Outer construction Thick PCRC
Inner construction Stainless steel



  1. Biotechnology
  2. Clinics / University Hospitals
  3. Pharmacy Industry
  4. Basic Research / Research Institutes
  5. Blood-Banking
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