Laser Marking Machine Suppliers & Manufacturers
Find laser marking machine manufacturers and suppliers on Towobo. Compare CO₂ laser coders, fibre laser markers, and UV laser marking systems for permanent date coding, batch coding, and traceability marking on glass bottles, PET bottles, cartons, flexible film, metal cans, and other packaging materials.
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Browse Laser Marking Machine Suppliers →Laser coding technology and substrate compatibility
Laser coding and marking machines use a focused laser beam to create permanent marks on packaging materials by ablation (removing a surface layer), colour change (altering the surface chemistry), or engraving. Unlike inkjet coding, laser coding requires no consumables (inks, solvents, or ribbons) and produces a fully permanent mark that cannot be wiped off or removed in normal handling. The three main laser wavelengths used in packaging coding are: CO₂ laser (10.6 μm wavelength) — the most widely used in packaging; CO₂ lasers mark effectively on glass, cardboard, paperboard, paper, wood, coatings on plastics, and HDPE plastics; they are the standard for date coding glass bottles, coding on outer carton/paperboard, and scoring or perforation of packaging materials. CO₂ lasers do not mark uncoated PET or clear PP directly without causing melting. Fibre laser (1.06 μm wavelength) — the standard for marking metal substrates (aluminium, tinplate, steel) and dark pigmented plastics; fibre lasers mark metals by oxidation or ablation, producing high-contrast permanent marks; used for metal cap coding, can end marking, and date coding on metal packaging. UV laser (355 nm wavelength) — used for cold marking on heat-sensitive materials; UV lasers can mark clear PET and other plastics cleanly without melting or distortion; used for direct marking on PET bottles, pharmaceutical blister packs, and high-resolution coding applications where the other wavelengths cause surface damage.