Enchedora de tinta aerossol

Our aerosol paint filling machines handle all common aerosol spray paint formulations: (1) alkyd enamel spray paint — the most common hardware store aerosol paint, solvent-borne, high gloss, typically 300ml cans with LPG propellant; (2) cellulose lacquer spray paint — used for automotive touch-up and wood furniture, fast-drying, high solvent content; (3) water-borne acrylic aerosol paint — latex-based, non-flammable product, used in architectural and craft paint; (4) metallic effect paint — contains aluminum flake or mica particle pigment, requires low-shear product handling; (5) heat-resistant spray paint — silicone-modified alkyd formulations for BBQ, exhaust and industrial high-temperature applications; (6) rubberized undercoat — high-viscosity, solvent-borne anti-corrosion coating for automotive underbody. Standard single-use spray paint cans (150ml, 200ml, 300ml, 400ml, 500ml) are filled at 30–120 cans/min depending on automation level.

Aerosol paint filling is more complex for three reasons: (1) Dual flammable hazard — solvent-borne aerosol paints contain highly flammable solvents (flash point below 23°C) in addition to LPG propellant, requiring ATEX protection at both the product fill station and the gas charge station; most other aerosols have non-flammable product with only flammable propellant. (2) High viscosity — spray paints have viscosities 10–100× higher than hairsprays or deodorants, requiring heated product supply systems and precision nozzle engineering for consistent fill weights. (3) Solids content — metallic, pearl-effect and primer formulations contain suspended solids (pigment, fillers, metallic flake) that settle during production stops, requiring recirculation systems and careful nozzle geometry to prevent blockage.

Yes — machines handling flammable propellants (LPG) or flammable product concentrates (solvent-borne paints) must comply with the ATEX Directive (2014/34/EU in the EU). ATEX zone classification: (1) LPG gassing station — Zone 1 inside the gassing head, Zone 2 in the surrounding area; all electrical components must be rated ATEX Group IIB (LPG); (2) Solvent product fill station — Zone 2 due to solvent vapors from the paint product; components must be rated for the specific flammable solvent (typically Group IIA for acetone/toluene, Group IIB for ethyl ether); (3) Can transport areas outside fill/gas zones — typically Zone 2 as a precaution during flammable propellant filling. For water-borne paint production only, the product fill station does not require ATEX classification.

Aerosol spray paint filling is economically viable from approximately 5,000 cans/month on a semi-automatic machine. Below this volume, co-manufacturing at a specialist aerosol CMO is typically more cost-effective. For own-equipment, the minimum economical scale for a semi-automatic aerosol paint filling machine is 10,000–30,000 cans/month. A fully automatic aerosol paint filling line becomes economical above approximately 100,000–200,000 cans/month, where automation labor savings justify the higher capital investment ($200,000–$800,000 for a complete automatic line versus $30,000–$80,000 for a semi-automatic setup). Our team can provide a cost-per-can analysis for your specific volume and product mix.