Calender Machine

The Calender Machine is a vital component in the papermaking process, designed to improve surface gloss, smoothness, and uniformity. This equipment performs calendering and glazing processes to enhance the visual and tactile properties of paper.

For coated paper, the machine refines the glazing layer, boosting gloss levels from approximately 65-85% to over 90-95%. It is extensively used for processing newsprint, kraft paper, culture paper, and other high-grade paper products.

Two primary types of calender machines are available: Soft Calender and Hard Calender, each catering to different production needs.

• Soft Calender

• Enhanced Sheet Density: Improves the uniformity of paper density, minimizing imperfections and ensuring superior printability.

• Versatile Deckle Sizes: Fixed crown soft calenders handle deckles under 1800 mm, while multi-zone crown controllable rolls manage deckles above 1800 mm.

• Preferred in Modern Mills: The soft calender has largely replaced the hard calender due to its ability to produce smoother, defect-free paper.

• Hard Calender

• High-Precision Thickness Control: Achieves thickness control below 0.01 mm per nip, ensuring even paper thickness.

• Improved Smoothness: Enhances paper smoothness significantly through high temperature and pressure applications.

• Reduced Coating Weight: Optimizes coating application for cost-effective, high-quality results.