SJ-90 PET Food Grade Clear Sheet Extrusion Machine with 200-350kg/h Output and Integrated Twin-Tower Dryer for Optical Grade Thermoforming

The SJ-90 is a specialized PET sheet extrusion machine designed for food-grade thermoforming applications. With an integrated twin-tower molecular sieve dehumidifying system and PET-optimized screw geometry, it delivers 200-350 kg/h of crystal-clear sheet meeting FDA food contact standards. Ideal for food packaging trays, blister packs, fruit containers, and folding boxes.

• PET-Optimized Screw Design: 90mm screw with special L/D 33:1 ratio and low-shear geometry prevents IV (Intrinsic Viscosity) degradation, maintaining PET mechanical properties
• Integrated Dehumidifying System: Twin-tower molecular sieve dryer with -40°C dew point ensures moisture content below 30ppm, critical for preventing hydrolysis during PET processing
• High Transparency Output: Precision melt filtration and optimized roll temperature control produce optical-grade clear sheet suitable for premium packaging applications
• FDA Compliant Design: All product-contact surfaces in 304 stainless steel, meeting FDA and EU food contact material regulations for direct food packaging use
• Adjustable Calender Stack: Three-roll horizontal or 45-degree configuration with independent roll temperature control for adjustable sheet gloss and surface finish
• Closed-Loop Thickness Control: Automatic die lip adjustment with online thickness gauge feedback ensures +/-0.02mm sheet thickness tolerance

Export-grade plywood case with anti-corrosion surface treatment. All precision components vacuum-packed with moisture protection. Delivery within 35-45 working days after deposit confirmation.