The Packmate NB-2B bag-in-bag packaging machine is engineered for products that demand strict hygiene, stable dosing, and premium shelf presentation. Built around a miniature dual-metering concept inspired by laboratory dispensers, it accurately handles both powders and granules, even when material conditions fluctuate. The machine completes inner-bag forming, filling, and sealing first, then automatically forms and seals the outer bag in a continuous process. This double-layer structure helps isolate the product from air and moisture, reduces contamination risk, and protects aroma and freshness pack after pack. With a compact footprint and servo-driven motion control, the NB-2B delivers smooth operation, fast changeovers, and dependable performance for continuous production.
Product Introduction
The NB-2B is a compact, intelligent packaging solution designed for precision small-dose applications, including nicotine pouches and other aroma-sensitive formulations. Its “inner bag + outer bag” workflow creates a clean, protected primary pack before it is enclosed within a secondary composite-material pouch. By separating the dosing zone from the external environment and streamlining sealing and cutting in one integrated line, the machine supports consistent quality output while simplifying operation and maintenance.
Product Features
Laboratory-Inspired Precision Dual-Metering
The miniature dual-metering system provides stable dosing for both granular and powder-like materials. It maintains consistent fill performance across a wide moisture range (8%–40%), supporting repeatable pack weights and reliable product compliance. This is especially valuable for premium products where small deviations can impact taste, user experience, and cost control.
Bag-in-Bag Protection for Hygiene and Aroma
The inner bag is sealed before the outer bag is formed, minimizing exposure to oxygen, humidity, and handling contaminants. This structure helps preserve aroma and flavor, supports better freshness retention during storage and logistics, and enhances perceived product value through a clean, layered packaging format.
Efficient Output with Flexible Size Adaptation
Designed for efficient production, the system supports high-speed bagging while maintaining stable sealing quality. Bag parameters can be adjusted to accommodate different lengths, widths, film types, and sealing configurations, enabling rapid adaptation to new SKUs, revised branding designs, or upgraded barrier films.
Servo-Driven Control and User-Friendly Operation
Servo motor heat-sealing pull control (Inovance) delivers smooth film handling and accurate bag length management. A 7-inch color touchscreen provides intuitive parameter setting, production monitoring, and convenient adjustments for different material behaviors and packaging formats.
Durable Build and Production-Ready Design
Key structures are designed for long-term industrial operation, with robust components and practical access for maintenance. The machine is well-suited for continuous manufacturing environments requiring repeatability, cleanliness, and reliable sealing integrity.
Technical Specification Parameters
| Parameter | Inner Bag Specification | Outer Bag Specification |
|---|---|---|
| Packaging Material | Granules (per sample) | Composite packaging material |
| Packaging Capacity | 0.4–0.6 g/bag | N/A |
| Metering Accuracy | ≤ ±10% | N/A |
| Packaging Speed | 15–25 bags/min (single row) | 15–25 bags/min |
| Bag Dimensions | Length: 30–50 mm; Width: 13 mm | Width: 30 mm; Length: 75 mm |
| Packaging Film Width | 30 mm | 70 mm |
| Sealing Method | Back seal; no texture; left/right overlapping | Twist-edge sealing |
| Sealing Width | Vertical: 4 mm; Horizontal: 4 mm | Back: 5 mm; Front: 7 mm (straight lines) |
| Horizontal Seal Texture | Untextured | Plain (back); straight lines (front) |
| Cutting Method | Rounded corner cut | Rounded corner punching; 2 mm waste |
| Photoelectric Control | N/A | Length controlled by color mark or touchscreen |
| Bag Pulling Method | N/A | Servo motor heat sealing pull (Inovance) |
| Power Supply | AC 220V / 50Hz, 2 kW | AC 220V / 50Hz, 2.5 kW |
| Air Consumption | 6 MPa, 0.6 m³/min | 6 kg, 0.4 m³/min |
Customization & Order Information
| Item | Specification |
|---|---|
| Brand Name | Packmate |
| Model Number | NB-2B |
| Place of Origin | China |
| Minimum Order Quantity | 1 unit |
| Machine Material / Details | 304 stainless steel |
| Delivery Time | 45 working days |
| Payment Terms | T/T |
| Supply Ability | 500 units/month |
| Touch Screen | 7-inch Inovance color touchscreen |
| Sealing Type | Heat sealing (inner and outer bag) |
| Measuring Device | Dual-metering for dry and wet materials |
| Bag Size Range | Inner bag: 30–50 mm × 13 mm; Outer bag: 30 mm × 75 mm |
| Power | AC 220V / 50Hz, 2–2.5 kW |
| Air Source | 6 kg, 0.4–0.6 m³/min |
Application Industries
The NB-2B bag-in-bag system is ideal for premium nicotine pouches and oral nicotine products where aroma retention and hygienic handling are critical. It is also well-suited for pharmaceutical granules, moisture-sensitive powders, and specialty consumer goods requiring accurate dosing and double-layer protection. Thanks to its flexible bag specifications and stable metering performance, the machine can be adapted efficiently for new formulations, changing moisture conditions, and evolving packaging designs.
