Vertical Skin Packing Machine

A vertical vacuum skin packing machine operates by heating, softening, and vacuum-forming a specialized film around the product. First, the product is placed on a tray, printed card, or base. The machine then heats the film until it becomes soft and pliable. The vacuum system then rapidly evacuates air from the chamber, and strong suction draws the softened film tightly around the product’s contours, including sharp edges and irregular shapes. Once cooled and set, the film firmly locks onto the base, creating a precise, three-dimensional, gap-free package with excellent sealing. Unlike traditional vacuum packing that compresses the product, the vertical vacuum skin packing machine ensures the product’s shape and appearance are maintained while providing superior protection and an attractive presentation. It supports two main packing modes: tray-based for retail displays and dual-film for industrial protection, making it suitable for a wide range of applications.

Investing in a vertical vacuum skin packing machine offers numerous advantages by significantly enhancing packing quality, product preservation, and operational efficiency. Compared to traditional vacuum or blister packing, skin packing ensures a perfect, three-dimensional fit that preserves the original appearance, freshness, and flavor of food products, while providing excellent protection against environmental factors and physical damage. This increased visual appeal and product integrity help elevate market value, enable premium pricing, and extend shelf life—up to 90 days for fresh meat and seafood—making it ideal for retail, wholesale, and industrial applications. Additionally, these machines support versatile production needs, from small batch operations to large-scale manufacturing, with features like customizable molds, multi-layered protection, and user-friendly controls, ultimately reducing costs, improving efficiency, and ensuring consistent, high-quality output.

• Packaged meats, seafood, ready-to-cook meals, and produce to extend shelf life and maintain quality.
• Protect irregularly shaped and sharp-edged industrial components such as tools, spare parts, and electronic devices from shock, dust, and damage.
• Safeguard high-precision and fragile products like medical devices, circuit boards, and decorative ornaments from environmental damage.
• Preserve herbs, fruits, and vegetables, preventing spoilage, mold, and dehydration while showcasing product quality.
• Suitable for small retail, e-commerce, and large-scale industrial production, offering efficient and attractive packing solutions across various industries.

Production Volume:  

• Small-scale, intermittent production (retail shops, small e-commerce, limited space): Choose a vertical manual machine for its compact size, ease of use, and cost-effectiveness.
• High-volume, continuous production (large factories, processing plants): Choose a vertical industrial machine for its automation, higher speeds (160–200 cycles/hour), and durability.

Site Conditions:  

• Limited space or no industrial power supply: Opt for a portable vertical unit that runs on standard household electricity.
• Ample space and access to 380V power: Use a stable, floor-standing vertical machine designed for long-term, high-capacity operation.

Product Size and packing Needs:  

• Small items, standard trays: vertical machines are sufficient for reliable sealing and uniform results.
• Large, irregular, or multi-item packing: Vertical machines with larger vacuum chambers and advanced features are better suited.

Automation and Long-term Use:  

• Short-term, low-volume, easy operation: vertical models are ideal for quick setup and manual operation.
• Long-term, high-volume, standardized production: Vertical models with PLC control systems provide precise, consistent packing for large-scale operations.

Selecting the correct model and chamber size for the vertical vacuum skin packing machine depends on matching your trays and products to the machine’s effective vacuum chamber dimensions, not just external size. The key factors are the maximum tray width, the number of products per cycle, and the packing height. Models 260, 350, and 450 are vertical units suitable for small-scale, light production, operating on standard 220V power. For small trays and prototypes, models 360 and 400 are ideal, with chambers supporting tray sizes up to approximately 250–430mm. Larger vertical models like 500 support bigger trays and higher output, suitable for retail or small workshops. Vertical models (360, 400, 500, 750, 760) are designed for industrial use, with larger chambers supporting multiple trays, full-sheet packing, and high-volume production—perfect for continuous, large-scale operations in small, medium, and large factories. Always ensure the tray width is smaller than the chamber’s internal dimensions and that the product height is within the recommended ≤60mm for optimal sealing and efficiency.

Step 1: Pre-start Inspection

Clear debris and obstacles around the machine. Lift the upper vacuum chamber and check that the skin-packing film is installed flat, correctly aligned, and free of slackness or jams.

Step 2: Powering Up

Turn on the main power switch. The vacuum pump will start automatically and enter standby mode. Open the high-pressure air supply valve to confirm proper air and power supply, bringing the machine into operational standby.

Step 3: Precise Parameter Setting

Use the touchscreen control panel to set key parameters—such as heating temperature, heating time, and vacuum time—based on your product’s volume, quantity, and material. Save these settings for batch production.

Step 4: Product Loading and Preheating

Place the trays and products neatly into the vacuum chamber. Wait for the heating plate to reach the preset temperature to ensure uniform heating and consistent skin-packing results.

Step 5: Initiating the Operation

Confirm the product placement. Press the start button; the machine will automatically lower the bottom tray and begin the packing cycle.

Step 6: Film Covering and Vacuum Adsorption

Manually pull out and drape the skin-packing film flat over the chamber opening. The machine automatically secures the film using negative pressure, ensuring it is smooth, taut, and wrinkle-free.

Step 7: Automatic Vacuum Process

Lower the upper vacuum chamber to start the full cycle. The machine performs heating, vacuum suction, film forming, and cooling/setting automatically, stopping when the cycle completes.

Step 8: Opening Chamber and Retrieving Products

After the cycle ends and vacuum pressure is released, slowly open the chamber lid. Avoid rapid opening to prevent product deformation or film tearing.

Step 9: Trimming and Separating

Use a utility knife to trim waste edges along the designated cutting grooves. Ensure a clean, smooth cut for a neat and uniform appearance.

Step 10: Storage and Boxing

Organize, count, and pack the finished skin-packaged products into boxes, completing the process and preparing the machine for the next batch.

• Pre-start Checks: Inspect electrical wiring, mounting screws, and pneumatic connections for security and leaks. Ensure the skin packing film is flat, taut, and feeds smoothly without shifting or jamming.
• Post-shutdown Cleaning: Clean residual liquids, stains, and debris from the work surface promptly after use. Wait for the heating platen to cool completely before cleaning to prevent burns and corrosion.Keep heat dissipation vents clear and unobstructed.
• Vacuum Pump Maintenance: Regularly replace the vacuum pump oil every 1–3 months, depending on usage. This maintains strong suction and stable air extraction, preventing vacuum issues.
• Operational Guidelines: Follow the manufacturer’s manual strictly.Avoid unauthorized parameter adjustments or disassembly. Contact authorized after-sales service for repairs.
• Additional Tips: Store accessories and tools properly.Use genuine spare parts for replacements to ensure long-term precision and stability.