The Back Sealing Strip Packaging Machine is an automatic vertical form-fill-seal solution engineered for fast, stable, and accurate packaging of liquids, powders, and granules. Built with a stainless-steel structure and PLC control, it integrates bag forming, dosing coordination, back sealing, horizontal sealing, cutting, and finished-bag output in one streamlined process. With a compact operating footprint and customizable bag size configuration, it is designed to support consistent daily production while maintaining clean sealing aesthetics and dependable leak-resistant performance for suitable materials.
Product Advantages
This model adopts a variable-frequency motor crank bag-pulling structure with heat-sealed traction, delivering smooth film transport and reliable bag length control. The horizontal sealing width is 8–10mm, offering strong seal strength and an attractive finish; users can choose either a diagonal mesh pattern (1mm spacing) or a straight pattern (2mm spacing) to match packaging style and material characteristics. For liquid applications, an optional 1mm horizontal sealing leak-proof line enhances sealing integrity where additional anti-leak protection is required.
Precision is supported by a JULONG dual-color photoelectric eye for accurate mark tracking on printed films, helping maintain stable positioning for seals and cuts. Cutting can be configured as flat cut or serrated cut using an independent cutter system, with a 3mm spacing between cutters—supporting clean, repeatable separation of finished packs. The PLC-controlled architecture simplifies parameter setting and improves repeatability across shifts, while the stainless-steel build improves corrosion resistance and hygiene suitability in food, chemical, and daily-use product environments.
Designed for productivity, the machine targets 20–40 bags per minute depending on product characteristics, film type, and bag dimensions. Measurement accuracy is rated at ±1–10% (depending on packaging material and fill quantity), making it adaptable to varied products and dosing conditions. A standard 1-year warranty supports operational confidence for production deployment.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Back Sealing Strip Packaging Machine |
| Type | Automatic |
| Machine Material | Stainless Steel |
| Control System | PLC Control |
| Bag Pulling Method | Variable Frequency Motor Crank Structure, Heat Sealed Bag Pulling |
| Optoelectronic Eye | JULONG Dual Color Photoelectric |
| Packaging Type | Liquid, Powder, Particles |
| Measurement Accuracy | ±1–10% (Depending on Packaging Materials and Quantity) |
| Bag Making Range | Bag Width: 20–80mm; Bag Length: ≤150mm |
| Packaging Film Width | ≤180mm (Standard with 1 set of bag-making specifications) |
| Horizontal Sealing Width | 8–10mm; Diagonal Mesh Pattern (1mm spacing) or Straight Pattern (2mm spacing) |
| Horizontal Sealing Leak-Proof Line | 1mm (Only applicable to liquid packaging) |
| Cutting Method | Flat Cut or Serrated Cut (Independent Cutter), 3mm spacing between cutters |
| Speed | 20–40 bags/min (Depends on product, film, and bag size) |
| Machine Weight | 350kg |
| Size | Customized |
| Warranty | 1 Year |
Application Areas
This automatic packaging machine is suitable for back-sealed poly bag packaging across multiple industries. It is commonly used for granular products (such as particles, small pellets, and similar free-flowing materials), powdered products (including flour-like and fine powder materials), and liquid products where the leak-proof sealing line option is utilized. Typical deployments include food and beverage ingredients, daily chemical products, and general industrial consumables that require consistent bag forming, strong horizontal seals, and stable cutting performance. With customizable bag sizing and reliable photoelectric tracking for printed films, it is well suited for production lines seeking efficient, repeatable sachet or small-bag packaging.
