Keypack Intelligent One-Stop Tea Inner & Outer Bag Vertical Form-Fill-Seal (VFFS) Packaging Machine is engineered for high-efficiency, fully automatic tea and herbal packaging lines that demand consistent quality and freshness preservation. It delivers 20–40 bags/min with integrated ultrasonic inner bag sealing, nitrogen flushing, and thread & tag attachment in a single continuous process. Ideal for tea processing plants, herbal tea brands, and export-oriented premium tea packaging operations.
Product Overview
The Keypack Intelligent (Kunbupack) Full-Automatic Tea Inner & Outer Bag VFFS Packaging Machine is a turnkey vertical packaging solution that completes inner bag forming, quantitative filling, ultrasonic sealing, thread and tag attachment, outer bag packaging, and nitrogen flushing in one integrated system — eliminating the need for separate inner and outer bag machines.
The inner bag is formed from non-woven fabric into a triangular (pyramid) or flat bag format, sealed with advanced ultrasonic technology for clean, reliable seals without thermal damage to sensitive materials. The outer bag adopts a three-side seal structure, providing a premium presentation suitable for high-end retail and export markets.
Nitrogen flushing is built into the packaging cycle, effectively protecting tea aroma, flavor, and shelf life — a key requirement for premium loose-leaf tea, herbal tea, and specialty coffee products targeting international buyers.
The machine automatically performs bag forming, filling, sealing, cutting, counting, and batch number printing, meeting the operational requirements of modern automated tea packaging lines with minimal manual intervention.
Key Features and Machine Characteristics
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Inner & Outer Bag Integration in One Step: Completes inner bag forming, filling, sealing, thread and tag attachment, and outer bag packaging in a single automated process, reducing labor costs and improving line efficiency for full-automatic tea bag packaging.
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Nitrogen-Filled Fresh-Keeping Function: Built-in nitrogen flushing effectively protects tea aroma and quality, extending product shelf life and enhancing brand value for premium tea and herbal products.
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Ultrasonic Inner Bag Sealing: Adopts advanced ultrasonic sealing technology for the inner non-woven bag, ensuring strong, clean seals and stable sealing performance without thermal damage to delicate packaging materials.
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Triangular Bag & Flat Bag Compatibility: Supports both pyramid (triangular) and flat inner bag formats on the same VFFS machine platform, enabling flexible production for different tea packaging styles and market requirements.
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Thread and Tag Attachment: Integrated thread and tag attachment system supports premium tea bag formats widely used in overseas retail markets, improving product presentation and consumer experience.
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Automatic Functions — Bag Forming to Batch Printing: Automatically completes bag forming, quantitative filling, sealing, cutting, counting, and batch number printing, meeting the requirements of modern vertical packaging machines with high repeatability.
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Wide Packaging Material Compatibility: Compatible with composite film, nylon, corn fiber, and hanging-ear coffee filter film, supporting food-grade tea, herbal tea, and specialty coffee packaging applications.
Application Areas
The Keypack Intelligent Tea Inner & Outer Bag VFFS Machine is suited for a range of tea, herbal, and specialty beverage packaging applications:
- Tea: loose-leaf tea inner and outer bag packaging with triangular or flat bag forming and ultrasonic sealing
- Herbal tea: chamomile, peppermint, and mixed herbal blend packaging in non-woven inner bags with three-side seal outer pouches
- Floral tea: rose, jasmine, and chrysanthemum tea packaging requiring gentle filling and nitrogen flushing for aroma preservation
- Fruit tea: small granular or mixed fruit tea packaging with consistent quantitative filling
- Health tea: functional and wellness tea blend packaging for premium retail and export markets
- Coffee: hanging-ear coffee filter bag packaging for coffee powder and small granular coffee products
- Specialty beverage: high-end tea and herbal beverage packaging lines targeting international retail and e-commerce channels
Technical Specifications
| Parameter |
Tea Inner & Outer Bag Vertical Packaging Machine |
| Inner Bag Size |
L: 70–74 mm, W: 90 mm |
| Outer Bag Size |
L: 120 mm, W: 100 mm |
| Packaging Speed |
20–40 bags/min |
| Machine Dimensions |
2278 × 1173 × 913 mm |
| Machine Weight |
660 kg |
| Power Supply |
AC 220V / 50Hz / 3.7 kW |
This machine is not recommended for materials with high moisture content, large particle sizes exceeding the specified fill range, or free-flowing liquids.
