Product Introduction 
The super calender employs a two-roll calendering principle, forming a nip between the top metal heated roll and the bottom rubber soft roll. As paper passes through the nip, the combined high temperature and pressure compress and flatten the surface fibers, filling surface voids and producing a high-smoothness, high-gloss finish. The hydraulic power unit provides precisely adjustable linear pressure, while the electric heating system ensures uniform and constant metal roll surface temperature. The unwind uses an air shaft with magnetic powder clutch tension control for stable web feeding. The PLC touchscreen control system allows pre-setting of calendering speed, temperature, and pressure for automated one-touch operation. Changing to embossing rolls also supports surface texturing, meeting diverse laboratory research needs.

Key Features
Wide-Width High-Pressure Design Effective width 800 mm, linear pressure 1-300 KN/m adjustable; hydraulic power unit provides a stable high-pressure source to meet different paper grammages and calendering intensity requirements.
Metal-Rubber Dual Roll Structure Top roll is a metal heated roll, bottom roll is a rubber roll with hardness 89; uniform nip ensures consistent pressure across the sheet width for even calendering effects.
Electric Heating with Precise Temperature Control Top roll electrically heated, power 5 kW, temperature range ambient-150°C; fast and uniform heating combined with PLC for precise temperature setting and control.
PLC Touchscreen Intelligent Control All parameters including calendering speed, temperature, and pressure can be set via the touchscreen; supports parameter storage and one-touch recall for convenient repeatable operation.
Automatic Unwind Tension Control Air shaft unwind with magnetic powder clutch provides automatic tension control, ensuring smooth web travel and preventing wrinkles and breaks.
Dual Calendering and Embossing Functionality Standard configuration for paper calendering; dedicated embossing rolls can be fitted for surface texturing, offering multi-purpose versatility.
Efficient Surface Property Enhancement Significantly improves paper smoothness, gloss, density, and printability in a short time, providing standardized specimens for paper surface property research.
Comprehensive Safety Protection Equipped with safety protection devices including emergency stop button and safety guards to protect both the operator and the equipment.

Main Technical Specifications

FAQ 
1. What is the difference between a super calender and a regular sheet press?
The super calender is specifically designed for paper surface finishing. Using a combination of a metal heated roll and a rubber soft roll under high temperature and pressure, it primarily improves surface properties such as smoothness, gloss, and density. A sheet press is used for dewatering and consolidating wet webs during the sheet forming process. The two serve completely different functions and are positioned at different stages of the papermaking workflow.

2. How do I set and adjust the linear pressure? What pressure is recommended for different paper types?
Linear pressure is set via the PLC touchscreen, and the hydraulic power unit automatically adjusts and maintains the constant pressure. The appropriate pressure depends on the paper grade, grammage, and desired calendering effect. Lightweight papers typically require lower pressure, while heavier boards or high-gloss grades require higher settings. It is recommended to start from a lower pressure and gradually increase until the target surface finish is achieved.

3. What is the significance of the rubber roll hardness of 89? Can other hardness values be supplied?
Hardness 89 is a standard value selected to balance calendering uniformity and roll surface elasticity, suitable for most paper calendering applications. The elastic rubber roll compensates for microscopic surface irregularities in the paper, producing a more uniform calendering effect. Rubber rolls with other hardness specifications can be customized; please contact us for details.

4. Can the unit perform embossing? What additional configuration is needed?
Yes. The standard configuration is for calendering. To perform embossing, simply replace the standard rolls with dedicated embossing rolls. Custom embossing patterns can be manufactured to meet various surface texturing requirements.

5. How should the rolls be cleaned and maintained?
After each use, allow the roll surfaces to cool, then wipe the metal roll with a soft cloth to remove residual paper dust and debris. The rubber roll should avoid contact with organic solvents; clean it gently with water or a neutral detergent. Periodically inspect roll surfaces for wear. If significant wear or damage is observed, contact us for grinding repair or roll replacement.

6. What types of paper and materials can be processed?
The calender is suitable for a wide range of paper-based materials, including cultural papers, packaging papers, specialty papers, paperboard, as well as some plastic films and composite materials for laboratory calendering. Specific suitability depends on the material's heat resistance and physical properties; small-scale trials are recommended before full processing.

After-Sales Service
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Super Calender comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and calendering process consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.