Mirror Finish Hard Chrome Steel Roller with Ra 0.01 Surface for Industrial Roller Applications

The Mirror Finish Hard Chrome Steel Roller is a precision-engineered rotating cylinder developed for flexographic printing presses and other high-fidelity web handling equipment. Each roller is machined from a 45# seamless steel pipe or alloy steel core and then finished with a dense hard chrome layer that is ground and polished to a mirror surface of Ra 0.01. The result is an exceptionally smooth, defect-free face that delivers uniform ink transfer, consistent web tension, and flawless print registration, even at high line speeds. Whether you are replacing a worn impression cylinder or building a new printing line, this roller provides the dimensional stability and surface quality that modern print shops demand.

• Mirror-Grade Surface Finish: Imported polishing equipment produces a Ra 0.01 surface roughness, eliminating print streaks, ghosting, and ink piling on the plate.
• Hard Chrome Plating HRC 62: A dense electroplated chrome layer of 0.05–0.10 mm reaches 60–62 HRC, delivering outstanding wear and corrosion resistance.
• 45# Seamless Steel Core: The base body uses 45# seamless pipe or alloy steel, welded, stress-relieved, tempered, and quenched for stable, long-lasting geometry.
• High Concentricity: Precision grinding keeps concentricity within 0.02 mm, ensuring smooth rotation, low vibration, and even nip pressure across the web.
• Custom Diameter and Length: Rollers are produced to your drawing or URS, with diameters from 50 mm to 1500 mm and lengths to suit any press width.
• Balanced for Speed: Each roller is dynamically balanced so that flexographic presses can run continuously without bearing stress or print misregistration.

The mirror chrome roller is engineered for flexographic printing presses, water-based ink printers, coating machines, and laminating lines where a flawless, mirror-smooth surface is essential. It is equally suited to film, paper, and foil web handling, serving reliably as a guide roll, nip roll, impression roll, or measuring roll in continuous production environments.

Each roller is wrapped in anti-rust paper, cushioned with foam, and packed in a fumigated wooden case sized to the roll diameter and length for safe sea freight. Hardness, chrome thickness, roughness, and concentricity are inspected before shipment, and a 12-month quality guarantee covers manufacturing defects. OEM drawings and sample rollers are welcome from ST. KEY of Changzhou.