Solventless Laminating Machine

The Jiuyi solventless laminating machine bonds plastic films, metallic foils, and paper substrates using reactive two-component polyurethane adhesives. Eliminating solvent drying stages removes thermal energy consumption and residual volatile organic compounds (VOCs).
Independent servo drives regulate the unwinder, coating unit, laminating nip, and rewinder zones. Closed-loop tension feedback maintains web transport stability across varied gauges and elongation profiles. The modular frame layout integrates directly with existing slitting and printing operations.

Multi-Zone Closed-Loop Tension Control: Siemens servomotors drive independent nip and roller axes. High-precision load cells monitor web tension across unwinding, coating, and rewinding stations, holding deviation within +/-1% at speeds up to 450 m/min.
Gravimetric Metering and Mixing: A dual-servo dosing system meters Component A and Component B against real-time line speed feedback. Dynamic mixing elements ensure adhesive homogeneity, preventing ratio drift that causes incomplete curing.
Rigid Meehanite Cast Iron Frames: Side frames consist of annealed Meehanite cast iron, machined in a single setup to dampen high-speed vibration and eliminate structural deflection under nip loads up to 400 N/cm.
Sleeve-Type Roller Changeover: Carbon fiber and lightweight aluminum adapter sleeves enable gravure coating roller changeovers without crane assistance, reducing batch downtime to under 20 minutes.

Food Packaging: High-barrier multilayer structures for snack foods, coffee pouches, retort pouches (121 deg C sterilization), and liquid spout bags combining PET, NY, PE, and aluminum foil.
Pharmaceutical Packaging: Cold-form blister laminates (PA/AL/PVC) and sterile medical device peel pouches requiring zero solvent retention and high peel strength.
Industrial Laminates: Surface protective films, insulation foils, and functional barrier films for electronics and construction materials.

Unwind / Rewind Configurations: Single-station, semi-automatic turret, or fully automatic flying splice units for continuous 24/7 production.
Coating Roller Engraving: Custom screen-roll cell volumes and geometries (hexagonal or tri-helical) matched to adhesive viscosities and target grammages.
Corona Treatment Integration: Inline corona treaters mounted on primary and secondary unwinds to raise surface energy above 38 dynes/cm prior to coating.
Viscosity Control System: Temperature-regulated water circulation jackets on adhesive pans and metering rolls to maintain stable adhesive viscosity.

Precision CNC Machining: Meehanite cast-iron side frames and housings are finished on CNC gantry and floor boring mills, ensuring parallel alignment and squareness within <= 0.02 mm across the span.
Dynamic Balancing: All guide rollers, coating rollers, and nip rolls undergo computer-controlled dynamic balancing to G2.5 grade at maximum operating speeds to eliminate centrifugal vibration.
Electrical Compliance: Control panels integrate Schneider, Siemens, and ABB switchgear, wired to NFPA 79 and CE safety standards, with optional UL/CSA panel build certifications for North America.
Factory Acceptance Testing (FAT): Every machine undergoes a 72-hour dry-run and simulated trial run. Customers receive a complete FAT report including runout verification, tension logs, and material sample test results.

Site Preparation: Engineering drawings detailing foundation loads, pneumatic requirements, and electrical drop locations are provided 4 weeks prior to shipment.
On-Site Service: Jiuyi mechanical and software engineers supervise equipment positioning, leveling, utility hookups, and cold commissioning.
Hot Commissioning & Training: Operators and maintenance personnel receive hands-on training covering recipe management, web threading, roller maintenance, and troubleshooting routines.

Remote Diagnostics: Secure VPN routers integrated into the Siemens HMI panel enable remote software troubleshooting, parameter adjustments, and firmware updates.
Spare Parts Inventory: Critical wear items-pneumatic seals, doctor blades, bearings, and servo drives-are stocked in regional hubs for rapid dispatch.
Preventive Maintenance: Structured service intervals and scheduled maintenance guides ensure long-term mechanical reliability.

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