-- Miniature BLDC Rotary Refrigeration Compressors

    RIGID miniature rotary compressors are the result of a breakthrough in vapor compression technology featuring low vibration and low noise operation. Its tiny device is the first real innovation in micro-compressor technology for a century. They can be utilized in many thermal management applications from compact recirculating chillers, small coolers, medical cooling, electronic cooling, and mini-chilled water systems. RIGID mini compressors with cooling capacities range from 100W up to 800W (2,800Btu) by our patent drive board. The drive board is continuously speed-controllable via the frequency of a square wave signal, with variable speeds from 2,000rpm to 6,500rpm.


    Compressors are a key component of refrigeration products, it is the “heart” of such appliances, comparable to a car engine or even the human heart. RIGID Technologies now presents the lightest, ultra-compact, and more efficient Mini Rotary Compressor. The mini compressor is a new type of innovative micro dc compressor. Its compact and lightweight design makes it ideally suited for mobile and small cooling applications. Today, RIGID has successfully developed the 5th generation miniature compressor, which adopts our patented sine wave driver board.


    To maintain our technological edge, RIGID re-invests a large portion of corporate earnings back into R&D each year. PDF Download


      Miniature DC Compressors

      Mini Compressor

      • DC 12V&24V&48V
      • Liquid Water Cooling
      • Liquid Chiller Module
      • Small Air Conditioning
      • Laser, medical, semiconductor & military applications
      • Miniature & Mobile Refrigeration / Small Cooling systems
      R134a R410A Compressors

      Rotary Compressors

      • AC 110~120V/50~60HZ;  220~240V/50~60HZ
      • R134A, R410A, R290 Compressor
      • Dehumidifier
      • Air Conditioning
      • Refrigerator and Freezer

      New Enabling Technology for Mini Refrigeration & Air Conditioning Applications

      12 Voltage

      Commercial Cooling Systems

      24 Voltage

      Medical Device Cooling Systems

      48 Voltage

      Electronics Cooling Systems

      R290 Series

      Beverage Cooling Systems

      High-power Series

      More Powerful Cooling Systems

    • Advantages of Mini Compressor


      Low Starting Current


      Low amperes draw, quiet, and low energy consumption.

      Design for Mobile Applications


      Compact size, run on 24V/48V DC power supply.

      Inverter BLDC Motor


      Variable speed BLDC motor, energy saving, and high COP.

      Excellent COP ≥ 3.46 (W/W)


      Provide compact power, precision control, and flexibility.


      Miniature DC Compressors


      •     Brushless motor
      •     12V / 24V / 48V DC
      •     Refrigerant R134A / R290
      •     Capacity 100W ~ 800W (2,800Btu)
      •     Variable speeds range from 2,000 to 6,000rpm
      •     Low vibration and noise, sine wave controller
      •     High efficiency, high capacity, lightweight, smallest footprint
      •     Robust design is ideally suited for mobile & compact applications



      R134a R410A Compressors

      Typical Applications

      •    Micro Cooling
      •    Medical Device
      •    Small Refrigerators
      •    Beverage Cooling
      •    Electronic Components
      •    Portable Cooling Systems
      •    Mini-Chilled Water Systems
      •    Portable DC Air Conditioner
      •    EV / Automotive Lithium-ion Battery 
      •    Aesthetic & Medicine Device
      •    Telecommunications Cooling
      •    Portable and Small Cooling Applications


      RIGID rotary refrigeration compressor is characterized by very small size and high performance. It is a variable capacity DC Compressor driven by a drive board. Its volume is very small like a coke can, and the weight is only 720g. The current models use a single-cylinder configuration under standard ASHRAE conditions, which can produce a cooling capacity of up to 450W to 800W.


      Compatible with R134A and R290A refrigerants, it can run at 12, 24, and 48V DC, and other voltages or AC power supply can be converted by AC and DC. RIGID's newly developed Miniature BLDC Rotary Refrigeration Compressors have begun a new trend, providing unparalleled cooling capabilities in various compact mobile cooling systems and other small footprint countertop appliances.


      Up to a 40% reduction in overall energy consumption and a 5 dB(A) average noise level reduction were measured by applying Variable Capacity Compressors as compared to conventional fixed-speed compressors.


      RIGID miniature compressors have the size, weight, and durability that make them well-suited to mobile or portable applications, including:

      • Small Cooling
      • Medical Device
      • Beverage Cooling
      • Small Refrigerators
      • EV/RV Battery Cooling
      • Portable Heat Pumps
      • Electronic Components
      • Mini-Chilled Water Systems
      • Portable DC Air Conditioner
      • Electronics Cooling Systems
      • Aesthetic & Medicine Device
      • Telecommunications Cooling
      • Portable Mini Cooling Systems
      • Miniature Refrigeration/Freezer Systems
      • Thermally-Controlled Shipping Containers
      • Portable and Small Cooling Applications
      • Automotive (Electric Vehicle, Vessel, Helicopter)



      Mobile Cooling & Compact Refrigeration


      DC Compressor Applications -  Mobile Cooling & Compact Refrigeration

    • Miniature Inverter DC Compressor

      Miniature Inverter Compressors

      12/24/48V DC Mini Compressors are ideally suited for compact & mobile refrigeration applications.

      Drive Board & Display Panel

      It is easy to integrate the drive board (PCB) & display panel into your application if you need sophisticated functions or want to control them with your software.

      R134A R410a Compressor for Dehumidifier

      R134A R410A R290 Compressors

      115V~240V / 50~60Hz AC Compressors for Compact Refrigeration & Air Conditioning.


      We have our own R&D department and manufacturing facilities. Thereby, we control the complete process from the first idea to the delivery of finished cooling products to customers. If you don’t see what you are looking for in our product lineup, do not hesitate to talk to us about your system. Apart from standard cooling systems, RIGID also provides custom solutions. We have developed solutions for medical devices, life science, laboratory, electronics, laser, Lithium battery, and electric vehicle customers. We can design a miniature cooling system to meet the requirements of your application. To learn more, go to our Design & OEM. Or, please contact us for a free evaluation of your application.


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