Water rollers in offset dampening systems transfer and meter fountain solution from the duct to the printing plate, forming a thin, uniform water film that repels ink in non-image areas. They maintain precise ink-water balance, prevent scumming, ensure clean highlights, and support stable density control during high-speed runs.

Daily maintenance requires cleaning roller surfaces, checking durometer hardness, and verifying setting pressures. Common issues include glazing, swelling from solution additives, cracking, and end wear. Replacement is recommended when rollers lose hydrophilicity, cause uneven dampening, streaking, or require frequent readjustment affecting print consistency.

RelyOffset is a trusted supplier of water rollers for leading brands including Heidelberg, MAN Roland, KBA, and Komori. Our rollers deliver consistent quality, precise compatibility with conventional and continuous dampening systems, strong technical support, reliable supply capability, and proven industry expertise in printing machinery spare parts.