Product Overview

The Keypack Intelligent One-Stop Nitrogen-Filled Fresh-Keeping Tea Bag Vertical Form-Fill-Seal Machine is a fully automatic tea inner and outer bag packaging solution designed for high-end tea and coffee applications.
This vertical form-fill-seal packaging machine integrates triangular (pyramid) or flat inner bag forming, precise quantitative filling, thread and tag attachment, outer bag packaging, and nitrogen flushing for freshness preservation in a single continuous process.
It is suitable for tea leaves, herbal tea, scented tea, fruit tea, and coffee powder or small granules, supporting premium tea bag packaging with improved aroma retention, extended shelf life, and consistent packaging quality. The system is widely used in tea packaging machines, automatic tea bag packaging machines, and VFFS tea packaging lines for branded products targeting international markets.

Key Features and Machine Characteristics

• The Keypack Intelligent (Kunbupack) Vertical Form-Fill-Seal Machine integrates inner bag and outer bag packaging in one automated system, reducing labor and improving production efficiency for full-automatic tea bag packaging.

• Equipped with a nitrogen-filled fresh-keeping function, effectively protecting tea aroma and quality while enhancing product shelf life and brand value.

• Designed for pyramid tea bags and flat tea bags, enabling flexible production for different tea packaging styles using the same VFFS machine platform.

• Adopts ultrasonic sealing technology for the inner tea bag, ensuring strong seals, clean bag edges, and stable sealing performance without thermal damage to materials.

• The automatic quantitative metering and filling system supports coffee powder and small granular materials, ensuring consistent fill accuracy in tea and coffee packaging applications.

• Supports thread and tag attachment, suitable for premium tea bag packaging formats commonly used in overseas markets.

• Integrated PLC control system with touchscreen interface, providing stable operation, intuitive parameter setting, and easy production changeover.

• The machine automatically completes bag forming, filling, sealing, cutting, counting, and batch number printing, meeting the requirements of modern automatic vertical packaging machines.

• Compatible with packaging materials including composite film, nylon, corn fiber, and hanging-ear coffee filter film, suitable for food-grade tea and coffee packaging.

Application Areas

The Keypack Intelligent One-Stop Nitrogen-Filled Tea Bag Packaging Machine is widely applied in:

• Tea processing plants and tea brand manufacturers

• Herbal tea, floral tea, fruit tea, and health tea packaging

• Coffee powder and hanging-ear coffee packaging lines

• High-end food packaging factories using VFFS machines and vertical packaging machines

• Export-oriented tea packaging projects requiring fresh-keeping, automatic tea bag packaging, and premium presentation