Keypack Intelligent KL-520 Vertical Form-Fill-Seal Machine is a high-performance VFFS Machine engineered for precise automatic metering and packaging of irregular lumps, granules, powders, and liquids. It delivers 30–80 bags/min with PLC servo control, pneumatic systems, and a large touchscreen HMI, ensuring stable output and consistent seal quality across demanding production environments. Ideal for food packing machine applications, powder packing machine lines, and liquid packing machine configurations in food, nutraceutical, and industrial packaging.
Product Overview
The Keypack Intelligent KL-520 is a versatile Vertical Packaging Machine Single Unit designed to handle a wide range of material types — from free-flowing granules and fine powders to irregular solids and semi-liquid products. As a fully integrated Automatic Metering Packaging Machine, the KL-520 combines metering, feeding, bag forming, filling, sealing, date printing, gas inflation or deflation, finished product conveying, and automatic counting into one continuous automated process.
The machine supports pillow bag and hang-hole bag formats, and can be paired with compatible metering systems (screw measurement or weighing measurement) and conveying systems based on the specific properties of the packaged material. With a bag-making size range of (L) 80–350 mm × (W) 80–250 mm and a packaging speed of 30–80 bags/min, the KL-520 Vertical Form-Fill-Seal Machine is well-suited for both mid-scale and high-throughput packaging lines.
Keypack Intelligent (Kunbupack) Vertical Packaging Machine systems are built around a PLC servo drive core, pneumatic control architecture, and an oversized touchscreen interface — delivering a control platform that prioritizes accuracy, reliability, and ease of operation. The touchscreen stores packaging parameters for multiple product types, enabling rapid changeover without manual re-configuration.
Key Features and Machine Characteristics
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Safety-compliant design: Equipped with comprehensive safety protection devices that meet enterprise-level safety management requirements for automatic packing machine installations.
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Intelligent temperature control: Precision thermal controller maintains accurate sealing temperature throughout operation, producing clean, flat, and visually consistent seals — a critical requirement for food packaging machine and powder packing machine applications.
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PLC servo + pneumatic + touchscreen control core: The integrated drive system maximizes control precision, operational reliability, and intelligent automation across the full packaging cycle — from filling to finished product discharge.
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Fully automated packaging process: When configured with appropriate metering units, the KL-520 Back-Seal Vertical Packaging Machine automatically completes metering, feeding, bag forming, filling, sealing, date printing, inflation or deflation, product conveying, and counting — with no manual intervention required between cycles.
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Multi-product parameter storage: The touchscreen HMI stores packaging process parameters for multiple product types. Switching between products requires only a parameter recall — no re-setup needed, reducing changeover time on mixed production lines.
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Integrated fault display system: Real-time fault detection and display assists operators in rapid diagnosis and resolution, minimizing unplanned downtime on the packaging line.
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Flexible bag format support: Configurable for pillow-type bags and hang-hole bags to meet different retail and logistics packaging requirements.
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Low-friction film transport: Single-belt or dual-belt film conveying system delivers fast, stable film feeding with minimal friction and reduced film waste, lowering consumable costs over time.
Application Areas
The KL-520 Granular Packaging Machine, Powder Packaging Machine, and Liquid Packaging Machine configuration supports a broad range of material types and industries:
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Food packing machine applications: Candy, puffed snacks, small biscuits, roasted nuts, dried fruits, granulated sugar — irregular lump and granule materials with variable density and particle size
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Frozen food packaging: Quick-frozen foods requiring sealed, gas-flushed or vacuum-compatible pillow bag packaging
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Powder packing machine applications: Milk powder, milk tea powder, starch, flour-based seasonings — fine and ultra-fine powders requiring controlled filling and dust-resistant sealing
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Liquid and semi-liquid packing machine applications: Sauces, condiments, beverages, and other flowable products compatible with liquid metering configurations
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Nutraceutical and seasoning packaging: Spice blends, seasoning sachets, instant beverage powders, and similar portion-pack formats
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Flexible packaging lines requiring a Vertical Form-Fill-Seal Machine, Automatic Metering Packaging Machine, or Back-Seal Vertical Packaging Machine as a standalone unit or integrated into a turnkey packaging line
Technical Specifications
| Parameter |
KL-520 |
| Model |
KL-520 |
| Bag Making Size |
(L) 80–350 mm × (W) 80–250 mm |
| Packaging Speed |
30–80 bags/min |
| Power Supply |
220V, 50/60Hz, 4.0KW |
| Compressed Air Pressure |
6–8 kg/m² |
| Air Consumption |
0.3 m³/min |
| Machine Weight |
350 kg |
| Dimensions (L×W×H) |
1650 × 1200 × 1600 mm |
