The Complete Guide to Rotary Compressors

Panasonic is one of the leading Rotary and residential AC Compressor manufacturers offering products that are highly regarded for their quality and effectiveness. Panasonic Rotary Compressors are compact, lightweight and utilize the most cutting edge technology, making them highly efficient and reliable.

Panasonic offers a wide range of models that are exemplary choices for air conditioner and climate control applications. These economical and trustworthy Rotary AC Compressors are an excellent fit for most mid-capacity solutions.




Lightweight and Simple

There are less components compared to other compressors on the market. Less moving parts means less possibility of malfunctions.

The rotary compressor’s mechanism and motor are attached directly to the housing so there are no additional mounting materials needed.

The compressor is extremely lightweight, simple and compact.

Lower Vibration

Because there are less moving parts, they can be easily balanced and accurately produced according to our specifications.

These features contribute to lower vibration and resonance, which means a quieter and smoother operation.

High Efficiency

The suction, compression and discharge process is continuous in each rotary compressor cycle, because of this consistency you can count on a smoother and more effective compression.

The rotary compressor is a direct suction mechanism, which means that the super heat loss in the suction gas is minimized, reaching a high volumetric efficiency during operation.

The motor rotation is directly transferred through a crankshaft to compression work without converting it to the reciprocation process, providing high efficiency work.

Wide Range and High Reliability

Panasonic has a reputation for developing and producing highly reliable compressors for respective market conditions. Panasonic’s compressors are designed based on strict internal standards with an optimal selection of materials.

Noise Suppression

Rotary compressors run at higher frequencies ranging from 3000 to 6000 Hz, which is easier to design with sound insulation in mind.





Panasonic carries a range of Compressors that can be a perfect fit for any HVAC system, ranging from vehicles to marine air conditioners. Compare our options below to get the best Rotary Compressor for your application.


R Series 5,000 – 9,000 BTU/h
  • Recreational Vehicles
  • Dehumidifiers
  • Room Air Conditioners

J Series

ARI 9,915– 14,620 BTU/h
CHEER Value 12,760 – 18,565 BTU/h
  • Residential Split Package
  • Package Air Conditioning

K Series

13,000 – 25,000 BTU/h
  • Room Air Conditioners
  • Package Terminal Air Conditioners
P Series 9,000 – 12,000 BTU/h
  • Marine Air Conditioner
  • Room Air Conditioners
  • Package Terminal Air Conditioners




Panasonic Rotary Compressors can be chosen by their model name using a designation system.

This is a representation of how all Panasonic Compressors product labels are listed. Located underneath the symbols are the corresponding tables in which important product information can be found. Click the image below to learn more about reading HVAC Compressor labels.




Rotary Compressors are hermetically sealed. This means that the Compressor and the Motor are enclosed inside a welded casing and they are connected by a common shaft. They are widely used for refrigerators, deep freezers and air conditioning applications because of their compact and portable design.

The cylinder volume is separated into a high pressure side and a low pressure side by the vane that is located in the cylinder shot. As the eccentric crankshaft rotates, the roller also spins, which takes the refrigerant gas into the cylinder.

The roller rotates within the cylinder, traveling in an orbital path. This motion is what compresses the refrigerant gas.

The separation of the high and low side pressure is maintained by the vane and by the hydrodynamic sealing. The hydrodynamic sealing is dependent on clearance and the surface finish of the cylinder until the designated cylinder pressure is reached.

The vane is essential for maintaining the pressure differential within the cylinder. Work is being done by the cylinder components at all times while the compressor is in operation. Suction and compression can even occur simultaneously.


  • Panasonic offers renowned products that are known for their superior quality and reliability. As a global leader, Panasonic has many options of Rotary Air Conditioning Compressors that will work for years to come.

  • Panasonic Rotary Compressors are highly effective at compressing air in HVAC systems because of the efficiency of the vane and hermetic design.

  • Panasonic makes finding the correct equipment easy by establishing clear product labels.

Explore Panasonic’s Rotary Compressor Series: R SeriesP SeriesK Series, and R2 Series today!

Or contact a Panasonic representative for more information on how Rotary Air Compressors can be the perfect addition to your HVAC system or specific application.

For immediate assistance, contact ISC Sales, a Panasonic Authorized Distributor for Panasonic Rotary Compressors.