Powder Back Seal VFFS Packaging Machine KL-300F
Keypack Intelligent Powder Back Seal VFFS Packaging Machine KL-300F is a precision vertical form-fill-seal system designed for automated powder metering and packaging. It delivers 20-40 bags per minute with ≤±1% weighing accuracy, powered by PLC servo drive system and 304 stainless steel dust-proof construction. Ideal for food, pharmaceutical, and chemical industries requiring contamination-free powder sachet filling and back seal bag packaging solutions.
Product Overview
The KL-300F Powder Packaging Machine is a fully automatic back seal VFFS machine engineered specifically for powdery material metering and packaging applications. This servo-driven vertical packaging machine integrates advanced PLC control with a large touchscreen interface, enabling precise bag formation, dust-free filling, sealing, and coding in one continuous operation. Built with full 304 stainless steel body and dust-proof back seal design, the machine ensures durability, hygiene compliance, and contamination prevention for food-grade and pharmaceutical powder packaging.
The system supports multiple film types including Paper/PE, PET/AL, Foil/PE, Nylon/PE, and tea-leaf filtering paper, making it versatile across milk powder packaging, seasoning powder packaging, traditional Chinese medicine powder packaging, and chemical powder packaging applications. Equipped with Keypack Intelligent (Kunbupack) precision screw metering technology, the KL-300F offers synchronized process parameter backup, allowing operators to store and recall packaging parameters for multiple powder products without reconfiguration.
The machine features color mark detection for accurate film registration, standard ribbon date coding for production traceability, and sponge air exhaust for improved bag appearance and powder settling. It can be paired with corresponding auger fillers, vacuum conveyors, and dust collection systems to automatically complete product weighing, bag making, gas flushing or air evacuation, date printing, and counting throughout the entire powder packaging process.
Key Features and Machine Characteristics
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PLC Servo Drive System: Maximizes control precision and packaging consistency with large touchscreen interface for intuitive operation, real-time monitoring, and recipe management
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Dust-Proof Back Seal Design: Enclosed filling zone with dust containment features prevents powder contamination and ensures clean packaging environment compliant with GMP standards
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Precision Screw Metering: Achieves ≤±1% weighing accuracy for consistent fill weights, reduced product giveaway, and compliance with net weight regulations
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Multi-Product Memory: Touchscreen stores packaging process parameters for various powder formulations, enabling quick changeover without resetting and reducing downtime between production runs
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Safety Protection: Equipped with comprehensive safety guards, emergency stop functions, and interlock systems to meet enterprise safety management requirements and operator protection standards
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304 Stainless Steel Construction: Full stainless steel body with sanitary design ensures aesthetic appeal, durability, and compliance with food safety and pharmaceutical hygiene standards
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Dust-Free Filling System: Enclosed powder delivery path with optional vacuum assist minimizes airborne particles and cross-contamination during filling operations
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Flexible Bag Formats: Supports back seal serrated cut and back seal flat cut bag styles for diverse packaging presentation needs and easy-open consumer convenience
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Standard Function Package: Includes color mark detection for accurate film registration, standard ribbon coding for production date printing, and sponge air exhaust for powder settling and bag aesthetics
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Compact Footprint: Space-efficient design suitable for production lines with limited floor space while maintaining high output capacity for powder sachet production
Application Areas
Food Industry:
- Dairy powders: milk powder, infant formula, milk tea powder, protein powder for retail and food service packaging
- Seasoning powders: spice blends, soup bases, seasoning mixes, curry powder for portion control and consumer sachets
- Starch products: corn starch, potato starch, modified starch for baking and cooking applications
- Beverage powders: instant coffee, cocoa powder, drink mixes for single-serve convenience packaging
Pharmaceutical Industry:
- Traditional Chinese medicine powders: herbal powder formulations, concentrated extracts, medicinal powder blends
- Pharmaceutical powders: antibiotic powders, vitamin supplements, probiotic sachets, nutraceutical formulations
- Medical nutrition: electrolyte powders, oral rehydration salts, nutritional supplement sachets
Chemical Industry:
- Industrial powders: detergent powder sachets, cleaning agent portions, specialty chemical formulations
- Agricultural chemicals: water-soluble fertilizer sachets, pesticide powder portions for precise application
- Cosmetic powders: face powder sachets, bath salt portions, cosmetic ingredient samples
Material Compatibility:
- Free-flowing powders with particle size 20-200 mesh
- Low-moisture powders (typically <5% moisture content for optimal flow)
- Non-sticky, non-clumping powder formulations
Technical Specifications
| Parameter |
KL-300F |
| Model |
KL-300F Vertical Automatic Packaging Machine |
| Material |
304 Stainless Steel |
| Control System |
PLC System with Servo Drive |
| Bag Size Range |
Width: 30-150mm × Length: 50-165mm |
| Weighing Accuracy |
≤±1% |
| Packaging Speed |
20-40 bags/minute |
| Voltage |
Single-phase 220V/50Hz |
| Power |
1.5 kW |
| Suitable Packaging Materials |
Paper/PE, PET/AL, Foil/PE, Nylon/PE, Tea-leaf filtering paper |
| Bag Styles |
Back seal serrated cut / Back seal flat cut |
Customization and Optional Configurations
The machine can be configured with corresponding metering systems and conveying systems according to specific powder properties. Optional modules include multi-head auger fillers for improved speed, vacuum powder conveyors for dust-free material transfer, nitrogen flushing systems for extended shelf life and oxidation prevention, dust collection systems for clean room compliance, and advanced thermal transfer or inkjet coding systems for batch traceability and regulatory compliance.
Material contact parts can be upgraded to 316 stainless steel for corrosive or acidic powder formulations. The machine supports integration with upstream powder processing equipment (milling, blending, sieving) and downstream production line equipment (cartoning, case packing, palletizing) for complete powder packaging automation.
Delivery and Support
Keypack Intelligent provides comprehensive installation, commissioning, and operator training services for powder packaging applications. The machine comes with standard warranty coverage, spare parts availability, and technical support to ensure continuous production uptime. Delivery timelines and customization options are available upon consultation to meet specific powder packaging requirements and production capacity needs.
