Sachet milk packing machine

Buyers should prioritize Vertical Form Fill Seal (VFFS) technology specifically designed for liquids. Key specs include filling accuracy (typically ±1-1.5%), packaging speed (30-60 bags/min), and sealing type (back seal or 3-side seal). Ensure the machine uses food-grade Stainless Steel 304 or 316L for all contact parts to prevent corrosion and ensure hygiene.

Verify that the supplier provides CE Certification for the European market or UL/ETL for North America. Crucially, for dairy products, the machine must support CIP (Clean-in-Place) systems to allow for automated internal sterilization without disassembly. Look for ISO 9001 manufacturing standards to ensure consistent build quality.

Most machines are designed for PE (Polyethylene) single-layer film or laminated films (PET/NY/PE). For fresh milk with a short shelf life, simple PE is sufficient; however, for UHT (Ultra-High Temperature) milk, you must ensure the machine can handle multi-layer co-extruded films with UV sterilization modules to extend shelf life and protect against light and oxygen.

Look for machines equipped with PLC (Programmable Logic Control) and Touch Screen HMI (like Siemens or Delta) for easy parameter adjustment. Features like automatic photoelectric tracking for precise film cutting and automatic stop functions when film runs out or doors are opened significantly reduce waste and improve safety.

Always specify your local voltage (e.g., 110V, 220V, 380V) and frequency (50Hz or 60Hz) in the contract. Request a video of the factory FAT (Factory Acceptance Test) showing the machine running on your specific power requirements before final payment and shipment.

Focus on the Total Cost of Ownership (TCO) rather than just the unit price. Negotiate for a comprehensive spare parts kit (heating elements, cutters, gaskets) to be included for free, as these are high-wear items. Use Made-in-China.com's Secured Trading services to ensure your payment is only released after the supplier provides proof of shipment.

Insist on Standard Export Plywood Crate packaging (IPPC fumigated) to prevent moisture and physical damage during sea freight. For shipping to landlocked or distant regions, choose CIF (Cost, Insurance, and Freight) terms to ensure the cargo is insured against maritime risks, and verify the HS Code (typically 8422.30) for accurate customs duty calculation.

Secure a written agreement for remote technical support via video call and a 12-24 month warranty on core components (motors, PLC). Ask if the supplier can provide installation videos or on-site commissioning services, and check if they have engineers available for international travel if a major breakdown occurs.