Keypack Intelligent Granule VFFS Machine with Upper & Lower Horizontal Sealing KL-300K is a specialized vertical form-fill-seal system engineered for fragile and free-flowing granular product packaging with horizontal top-and-bottom sealing technology. It delivers 20–40 bags per minute with ≤±1% weighing accuracy, powered by a PLC servo drive system and full 304 stainless steel construction. Ideal for puffed snacks, potato chips, biscuits, wafers, candies, nuts, and other granular food products requiring gentle handling and secure horizontal seal packaging.
Product Overview
The KL-300K Granule VFFS Machine with Upper & Lower Horizontal Sealing is a fully automatic vertical packaging machine purpose-built for fragile and granular materials that demand horizontal top-and-bottom sealing for superior seal integrity and premium bag presentation. Unlike conventional back-seal VFFS machines, the KL-300K's horizontal seal design creates a flat, reinforced top-and-bottom seal that is especially suited to lightweight puffed snacks, crispy chips, and delicate biscuits that are prone to breakage under excessive mechanical stress.
The machine integrates a PLC servo drive system with a large color touchscreen interface, enabling precise bag formation, gentle product filling to minimize breakage, consistent horizontal sealing, ribbon date coding, and sachet cutting — all in one continuous automated operation. The system supports multiple packaging film types including Paper/PE, PET/AL, Foil/PE, Nylon/PE, and tea-leaf filtering paper, providing versatility across a wide range of snack, confectionery, and granular food packaging applications.
Equipped with Keypack Intelligent (Kunbupack) horizontal seal VFFS technology, the KL-300K stores packaging parameters for multiple granular products on the touchscreen, enabling rapid product changeover without manual reconfiguration — a key advantage for snack producers running multiple SKUs on a single packaging line. Color mark detection ensures precise film registration for printed packaging films, while the sponge air exhaust system improves bag appearance and product settling for a clean retail presentation.
The KL-300K can be integrated with upstream gentle handling equipment (vibratory feeders, bucket elevators, multi-head weighers) and downstream automation (metal detectors, checkweighers, cartoning machines, case packers) to form a complete granular snack packaging line.
Key Features and Machine Characteristics
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Upper & Lower Horizontal Seal Design: Top-and-bottom horizontal sealing delivers superior seal integrity, enhanced bag strength, and premium flat-bottom bag appearance — ideal for retail display of snack sachets, chip portions, and biscuit packs.
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Gentle Fragile Product Handling: Tailored filling mechanism with controlled drop height and gentle product flow prevents breakage of puffed snacks, potato chips, wafers, and other delicate granular products during the packaging process.
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PLC Servo Drive Control: Full servo-driven film feeding and sealing system with large color touchscreen enables intuitive operation, real-time monitoring, and recipe management for multiple granular product types and bag formats.
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Multi-Product Parameter Memory: Touchscreen stores packaging parameters for various granular products and bag sizes, enabling quick changeover between SKUs without resetting — reducing downtime for multi-product snack packaging lines.
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Color Mark Detection & Film Registration: Automatic color mark sensor ensures precise film registration for printed packaging films, maintaining consistent bag length and label alignment across all granular snack packaging runs.
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Nitrogen Flushing Ready: Compatible with nitrogen flushing systems for extended shelf life and freshness preservation of chips, puffed snacks, nuts, and other oxidation-sensitive granular food products.
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Standard Ribbon Date Coding: Integrated ribbon coding system prints production date, batch number, and expiry date on each sachet for full traceability and food safety compliance.
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Sponge Air Exhaust System: Removes excess air from filled bags before sealing, improving bag appearance, reducing headspace, and ensuring a clean, professional presentation for retail snack packaging.
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Versatile Bag Format Support: Supports back seal, three-side seal, and four-side seal configurations with serrated or flat cut options, accommodating diverse snack and granular food packaging presentation needs.
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304 Stainless Steel Construction: Full stainless steel body with sanitary design ensures durability, corrosion resistance, and compliance with food safety standards for snack and confectionery packaging environments.
Application Areas
Puffed Snacks & Extruded Foods:
- Potato chips and kettle chips: regular, ridged, and flavored varieties requiring gentle handling to prevent breakage during VFFS packaging
- Cheese puffs and corn puffs: extruded puffed snacks for retail single-serve and multi-portion horizontal seal sachet packaging
- Rice crisps and rice crackers: light, fragile puffed rice snacks for retail and food service portion packaging
- Popcorn: pre-popped flavored popcorn for retail snack sachet and portion-control packaging
- Prawn crackers and shrimp chips: delicate puffed seafood snacks for retail and food service packaging
- Vegetable chips: beet chips, kale chips, sweet potato chips for health snack retail packaging
- Extruded corn snacks: bugles, rings, and shaped extruded snacks for retail and vending machine packaging
Biscuits, Wafers & Bakery Snacks:
- Mini biscuits and small cookies: bite-sized baked goods for portion-control and retail snack packaging
- Wafer cookies and cream-filled wafers: delicate layered wafers requiring gentle handling for confectionery packaging
- Crackers and savory biscuits: thin, brittle crackers for retail and food service portion packaging
- Graham crackers and digestive biscuits: whole grain biscuit pieces for retail snack and health food packaging
- Chocolate-coated biscuits: temperature-stable chocolate biscuit pieces for confectionery retail packaging
- Breadsticks and pretzel sticks: elongated baked snacks for retail and food service packaging
Candies & Confectionery:
- Hard candies and lollipop drops: individually wrapped or unwrapped hard candy pieces for retail bulk and portion packaging
- Soft candies and chewy sweets: gummy bears, jelly beans, fruit chews for retail confectionery packaging
- Chocolate pieces and chocolate chips: small chocolate confectionery for retail and baking ingredient packaging
- Marshmallows: soft, lightweight confectionery for retail snack and baking ingredient packaging
- Compressed candy tablets: small tablet-form confectionery for retail and vending machine packaging
Nuts, Seeds & Dried Fruits:
- Roasted almonds, cashews, and peanuts: whole and halved roasted nuts for retail snack and health food packaging
- Mixed nuts and trail mix: multi-ingredient nut and dried fruit blends for retail portion packaging
- Sunflower seeds and pumpkin seeds: roasted seeds for retail snack and health food packaging
- Raisins, cranberries, and dried blueberries: dried fruit pieces for retail snack and baking ingredient packaging
- Freeze-dried fruit pieces: lightweight, fragile freeze-dried strawberry, mango, and apple pieces for health food retail packaging
Pharmaceutical & Health Granules:
- Traditional Chinese medicine granules: Banlangen Granules, Chaihu Granules, and herbal extract granules for single-dose pharmaceutical packaging
- Vitamin and mineral supplement granules: effervescent granules, probiotic sachets, and nutraceutical powders for health food retail packaging
Other Granular Products:
- Small hardware parts: screws, fasteners, and small components for retail and industrial distribution packaging
- Pet food treats: small dry pet snacks and treat pieces for retail pet food packaging
Material Compatibility:
- Fragile granular products requiring gentle handling (puffed snacks, chips, wafers, crackers)
- Free-flowing granular materials (candies, nuts, seeds, dried fruits, granules)
- Filling capacity range: 5–20 ml per bag
- Particle size: suitable for granules and pieces that pass through the filling system without bridging
- Not recommended for: sticky or high-moisture granular materials, powders, or products requiring heated filling without custom configuration
Technical Specifications
| Model |
KL-300K Granule VFFS Machine with Upper & Lower Horizontal Sealing |
| Material |
304 Stainless Steel |
| Control System |
PLC System with Servo Drive + Large Color Touchscreen |
| Seal Type |
Upper & Lower Horizontal Seal (Top and Bottom) |
| Filling Capacity Range |
5–20 ml |
| Bag Size Range |
Width: 30–150 mm × Length: 50–165 mm |
| Weighing Accuracy |
≤±1% |
| Packaging Speed |
20–40 bags/minute |
| Voltage |
Single-phase 220V / 50Hz |
| Power |
1.5 kW |
| Suitable Packaging Films |
Paper/PE, PET/AL, Foil/PE, Nylon/PE, Tea-leaf filtering paper |
| Bag Styles |
Back seal, Three-side seal, Four-side seal — serrated cut or flat cut |
Customization and Optional Configurations
The KL-300K can be configured with a range of optional modules to match specific granular product handling and packaging requirements: gentle vibratory feeders for fragile puffed snacks and chips, multi-head weighers for improved throughput and weighing accuracy, nitrogen flushing systems for extended shelf life and freshness preservation of chips and nuts, vacuum packaging capability for shelf-stable granular products, 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 specialized applications. The machine supports integration with upstream product handling equipment and downstream automation for complete snack packaging line solutions.
Delivery and Support
Keypack Intelligent provides comprehensive installation, commissioning, and operator training services for granular snack and food packaging applications. The KL-300K comes with standard warranty coverage, spare parts availability, and dedicated technical support to ensure continuous production uptime. Delivery timelines and customization options are available upon consultation to meet specific horizontal seal granular packaging requirements and production capacity needs.
