Drilling Laminating Rollers for Paper and Film Industry
Laminating rollers are used in paper converting and film processing to apply heat and pressure. The roller needs a through-hole for heating oil or cooling water to circulate through the roller body. The bore must be smooth for good heat transfer and clean to prevent contamination of the heating medium. In my experience, a poorly drilled bore reduces heat transfer efficiency by 15-20% compared to a properly finished bore. Roller Dimensions and Material Selection A typical laminating roller is 2-5 meters long with a 30-80mm through-hole. The roller diameter is typically 200-500mm. The material is usually steel, sometimes with a chrome-plated surface for wear resistance. ...