Today, I will introduce to you the selection of air compressors for spray painting.
Parameter requirements for
air compressors in studio painting1. Flow requirements
Basic painting operation (single spray gun): recommended exhaust volume 0.5m³/min, which can meet the air consumption of standard spray guns with a caliber of 1.2-1.6mm
2. Painting & dry grinding: upgraded to 1.1m³/min (35CFM) to meet the air consumption requirements of dry grinding equipment.
3. Industrial multi-gun operation: professional spray paint room requires an exhaust volume of more than 6m³/min, the air storage tank is matched to buffer pressure fluctuations.
Pressure data
Traditional spray gun: The working pressure needs to be stable at 0.4-0.8MPa, and the air compressor output pressure needs to be ≥0.85MPa to compensate for the pressure loss of the
air compressor pipeline.
HVLP environmentally friendly spray gun: requires about 2Bar, and is equipped with a precision pressure regulating valve.
Comparison of various
types of air compressors1.
Screw air compressors have stable high pressure, low noise, stable operation, and high efficiency and energy saving.
2. Complex maintenance Professional spray paint rooms generally use high-frequency
piston air compressors, which are low-cost and easy to maintain. The disadvantage is that the noise is loud and the operating stability is average.
3. The pressure fluctuation is obvious, and small workshops mostly use
oil-free silent air compressors. To prevent oil pollution on the paint surface, the exhaust volume of oil-free silent air compressors is usually less than 1.5m³/min.
Size parameters of
air compressors for spray painting1. Matching spray gun parameters
Each standard spray gun consumes about 0.3-0.5m³/min of gas, and 1/5 of the margin should be reserved. When the spray gun caliber is greater than 1.5mm, the compressed air storage tank needs to be increased to more than 50L.
2. Environmental adaptability
High temperature environment requires heat-resistant models, and the continuous working temperature of screw air compressors can reach 53℃
3. Energy efficiency and maintenance
Permanent magnet variable frequency models can save up to 36% energy and are suitable for long-term operation. Check the oil level and filter element every month.
Recommended
paint car air compressor1. Personal studio
30L oil-free silent air compressor
2. Auto repair shop
Oil-lubricated piston machine with air tank
3. Factory professional painting production line
Airlfer 90KW screw oil-free air compressor
