An air receiver tank stores compressed air, smooths pressure and reduces compressor cycling. Correct sizing improves reliability and protects the compressor from short-cycling.
A Simple Rule of Thumb
- Allow about 1 litre of tank per litre/second of free air delivery.
- A 1 m³/min compressor commonly pairs with a 300–500 litre tank.
- Larger tanks help with intermittent high-flow demand.
Why Tank Size Matters
- Storage covers short demand spikes without pressure collapse.
- It reduces start/stop cycling that stresses the motor.
- It provides a buffer while the dryer reaches operating temperature.
Special Cases
- Add capacity for blast air or other brief high-flow uses.
- Wet and dry storage on either side of the dryer improves quality.
Can a tank be too large?
A larger tank costs more and takes longer to pressurise, but it rarely hurts reliability. Size it to your demand profile.
Talk to an Engineer
Contact Panrui with your flow, pressure and air quality requirements to get a recommendation and factory quote for your project.