The Double Vibration Disc Multi-Grain Back Seal Packaging Machine is a space-saving vertical form-fill-seal (VFFS) system engineered for reliable counting, fast bag making, and stable sealing of small-piece and multi-grain products. Built around a dual vibrating-disc measuring unit and a back-seal pouch structure, it maintains smooth product flow, repeatable counts, and clean package appearance in continuous production. The machine runs composite packaging films such as BOPP/PE, and integrates PLC control with a 7-inch color touch screen to streamline setup, reduce operator workload, and keep sealing quality consistent from start to finish.
Product Introduction
Designed for everyday high-frequency packaging, this model combines dual-disc vibration counting with precision film pulling and reinforced heat sealing. It forms back-seal pouches with clear, straight-grain seal textures and dependable seal strength, helping improve shelf presentation and minimize leakage risk. A linear vibration feeding system stabilizes dosing, while the no-material stop induction device prevents empty-running and reduces film waste. With touch-screen operation and dual PID temperature control, the machine delivers stable performance even when product flow or ambient conditions vary.
Product Features
Dual vibrating-disc counting for stable speed and accuracy: The 300-type double vibration disc measuring device supports flexible counting patterns, smooth separation, and consistent output, improving throughput while keeping pack counts uniform.
Back-seal pouch structure with enhanced sealing integrity: A reinforced heat-sealing mechanism produces crisp seal lines and strong bonding, helping maintain pouch tightness and professional package appearance.
Stepper-motor film pulling for repeatable bag length: Stepper-driven pulling improves length control and registration stability, supporting consistent bag forming and reduced variation across long runs.
PLC + 7-inch touch screen for simplified operation: The control system provides a clear interface (English/Chinese), alarm prompts, fault self-diagnosis, and parameter memory to shorten changeover time and reduce downtime.
Dual PID temperature control for consistent sealing: Independent temperature management helps maintain stable longitudinal and cross sealing performance, especially when switching films or adjusting speeds.
Stable feeding with anti-empty-run protection: Linear vibration feeding improves flow continuity, while the no-material stop induction device reduces empty packs and prevents unnecessary wear.
Clean separation and neater packs: Sawtooth cutting (middle out knife) supports tidy pack separation, and the exhaust pinhole function helps release trapped air for tighter, cleaner-looking pouches.
Flexible dosing logic for standardized packaging: The 1–16 fixed-length counting feeding device (fixed-length control) supports repeatable dosing patterns for products requiring consistent, standardized pack formats.
Technical Specifications
| Machine Type | Double vibration disc multi-grain back seal packaging machine |
| Packaging Style | Vertical form-fill-seal (VFFS), back sealing |
| Compatible Films | Composite packaging materials (e.g., BOPP/PE) |
| Packaging Speed | 15–35 bags/min (depending on product quantity and feeding condition) |
| Counting / Packing Range | Single vibration disc: 1–16 pcs; Double vibration discs: up to 32 pcs total |
| Bag Making Capacity | W ≤ 75 mm × L ≤ 150 mm |
| Standard Bag Size (updated) | W = 32 mm × L ≤ 150 mm (modified at 2025-02-18) |
| Film Width | To be determined (randomly equipped with 1 set of forming mold) |
| Longitudinal Seal | Straight grain pattern (1.2 mm spacing), cylinder seal; seal width: 8 mm pneumatic seal (modified at 2025-02-18) |
| Cross Seal | Straight grain pattern (1.5 mm spacing), cylinder seal; cross seal width: 8 mm (modified at 2025-02-18) |
| Cutting Mode | Sawtooth cutting (middle out knife) |
| Film Pulling Method | Stepper motor bag pulling |
| Control System | 7-inch color touch screen + PLC; English/Chinese interface; error warning; self-diagnosis; dual PID temperature control |
| Power Supply | 220V / 50Hz |
| Installed Power | 2.5 kW (modified at 2025-02-18) |
| Measuring Device | 300 type double vibrating disc |
| Feeding System | Linear vibration feeder; 1–16 fixed-length counting feeding device (fixed-length control) |
| Protection / Detection | No material stop induction device |
| Additional Function | Exhaust pinhole function (modified at 2025-02-18) |
| Structure / Accessories | Vibrating disk bracket; enhanced heat sealing mechanism for clear seal lines and strong sealing |
Application Areas
This machine is ideal for automated counting and pouching of small, uniform parts and multi-grain materials that require stable feeding and consistent sealing. Typical products include mixed grains, small pellets, tablets, plastic round sheets, and similar piece-count items. It is widely used across food packaging, daily-use consumer goods, and light industrial parts packing—especially where back-seal pouches, dependable heat sealing, and efficient continuous operation are required.
