Keypack Intelligent KL422 Vertical Form-Fill-Seal Machine — a high-adaptability VFFS Machine engineered for automated metering and packaging of irregular block, granular, powder, and liquid materials. It delivers stable output at 70–120 packs/min with PLC servo control, pneumatic actuation, and intelligent temperature management. Ideal for food, snack, powder, condiment, and beverage packaging lines requiring a reliable Vertical Packaging Machine Single Unit.
Product Overview
The Keypack Intelligent KL422 Vertical Packaging Machine is a fully automated Back-Seal Vertical Packaging Machine designed to handle a wide range of material types — from free-flowing granules and fine powders to irregular solid pieces and pourable liquids. As a versatile Automatic Metering Packaging Machine, the KL422 integrates metering, feeding, bag forming, filling, sealing, date printing, gas flushing or evacuation, finished product conveying, and automatic counting into a single continuous workflow.
The machine features a dual-side independent packaging structure, allowing the left and right units to simultaneously package products of different weights and sizes. If one side pauses, the other continues operating without interruption — maximizing line uptime and production flexibility. Compatible metering systems and conveying systems can be configured according to the specific properties of each product, making the KL422 a scalable solution for multi-SKU packaging environments.
Built around a PLC servo system, pneumatic control system, and large-format touchscreen interface, the Keypack Intelligent (Kunbupack) KL422 Food Packaging Machine achieves high control precision, operational reliability, and a strong degree of intelligent automation — suitable for manufacturers seeking to upgrade or expand their automated packaging capacity.
Key Features and Machine Characteristics
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Safety protection devices are integrated throughout the machine to meet enterprise safety management requirements for automatic packaging equipment.
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Intelligent temperature control system maintains precise sealing temperature, producing neat, smooth, and consistent seals across all operating conditions.
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PLC servo control system combined with a pneumatic control system and large-format touchscreen interface forms the core drive and control architecture, maximizing control accuracy, reliability, and intelligent automation capability.
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Full-process automation: when paired with appropriate metering configurations, the machine automatically completes metering, feeding, filling, bag forming, date printing, gas flushing or evacuation, finished product conveying, and counting — without manual intervention.
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Multi-product parameter storage: the touchscreen stores packaging process parameters for multiple product types. During product changeover, stored parameters can be recalled instantly without re-configuration, reducing downtime.
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Fault display system provides clear fault indication to assist operators in rapid troubleshooting and minimizing unplanned stoppages.
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Flexible bag format support: the machine can be configured to produce pillow-type bags or hang-hole bags according to specific packaging requirements.
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Single-belt or dual-belt film transport ensures fast, stable film feeding with low friction and minimal film waste.
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Dual-side independent operation: left and right packaging units can run simultaneously with different product weights and sizes. One side stopping does not affect the other, improving overall equipment utilization.
Application Areas
The KL422 Granular Packaging Machine, Powder Packaging Machine, and Liquid Packaging Machine capabilities make it suitable for a broad range of industries and material types:
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Confectionery & Snack Food: granular and irregular block packaging for candies, puffed snacks, small biscuits, roasted nuts, and dried fruits — including back-seal pillow bag format at high throughput
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Sugar & Dry Goods: granulated sugar and similar free-flowing granular materials requiring precise volumetric or weighing metering
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Frozen Food: quick-frozen food items requiring sealed, gas-flushed packaging to maintain product integrity during cold chain distribution
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Dairy & Powder: milk powder and milk tea powder pneumatic conveying to hopper with powder-grade sealing for moisture-sensitive products; starch and similar fine powders
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Condiments & Seasonings: powder and granular seasoning blends requiring accurate portion control and consistent back-seal packaging
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Sauces & Liquid Products: pourable sauces and beverages requiring liquid-compatible filling systems with reliable sealing
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Multi-SKU Production Lines: operations requiring a single Vertical Form-Fill-Seal Machine to handle multiple product types with fast changeover and independent dual-side operation
Customization & Compatible Modules
- Metering system: configurable per product properties (volumetric, weighing, or screw metering)
- Conveying system: adaptable to upstream and downstream line integration
- Film transport: single-belt or dual-belt configuration
- Gas module: gas flushing or evacuation (MAP-compatible)
- Date coding: integrated date printing module
- Bag format: pillow bag or hang-hole bag
Delivery & Support
- Lead time, installation, commissioning, operator training, spare parts supply, and warranty terms are available upon inquiry — please contact our team for project-specific details.
