Double-Row Irregular Premade Bag Packaging Machine (Model DS350F/N)
The DS350F/N double-row irregular premade bag packaging machine represents a high-performance solution for the precise and efficient packaging of powders, granules, and liquids in small-dose formats. Engineered to deliver exceptional reliability and flexibility, this machine utilizes a dual-lane configuration to maximize output while ensuring consistent, high-quality packaging. Constructed with 304 stainless steel on all product-contact surfaces, it guarantees hygiene and durability, making it an indispensable asset for modern production lines seeking to enhance productivity without compromising on precision or packaging integrity.
Key Product Features
Enhanced Dual-Lane Productivity: The innovative double-row design significantly increases packaging throughput. By operating two parallel lanes simultaneously, the machine achieves higher output rates while maintaining precise control over the forming, filling, and sealing processes for each individual bag, optimizing production efficiency.
Versatile and Customizable Bag Formats: This machine excels in creating unique, brand-defining packaging. It supports four-side sealing and is specifically engineered to handle irregular or “alien” custom bag shapes. This capability allows manufacturers to develop distinctive product presentations that enhance shelf appeal and brand differentiation in competitive markets.
Superior Film Handling and Bag Forming: Equipped with a V-shaped forming system and adjustable film width control, the DS350F/N ensures stable, consistent bag shaping. This advanced forming technology minimizes film deviation and material waste during high-speed continuous operation, contributing to smoother production runs and reduced downtime.
Precision Dosing for Small Quantities: Designed for accurate metering of small packages ranging from 1 to 20 grams, the machine delivers packaging accuracy between ±1% and ±10%, dependent on material characteristics. This precision is crucial for both retail-ready sachets and promotional trial packs, ensuring consistent product weight and value.
Advanced Industrial Control System: Operation is streamlined through a Siemens 7-inch color touch screen interface paired with a robust Siemens PLC. This system provides intuitive parameter setting, comprehensive alarm prompts, and built-in self-diagnostics, enabling rapid changeovers, simplified troubleshooting, and enhanced operational control.
Consistent and Reliable Sealing: Sealing integrity is assured through a cylinder-driven horizontal sealing mechanism. This is complemented by a dual-way PID temperature control system (Yudian), which maintains precise and uniform heat application across the sealing jaws. This combination delivers strong, consistent seals on a wide variety of composite film materials.
Premium Component Construction: Built for longevity and dependable performance in demanding environments, the machine incorporates high-quality components including Taiwan AIRTAC pneumatic systems and Schneider or Omron electrical parts. This focus on quality ensures extended service life and minimizes maintenance requirements.
Optimized Viscous Product Handling (Optional): For challenging liquid or gel products, the machine can be integrated with an optional UBA high-viscosity filler. This specialized attachment improves dosing stability for viscous materials, effectively reducing common issues such as stringing or dripping, and expands the machine’s application range.
Technical Specifications
| Product Type | Powder / Granule / Liquid |
| Metering / Package Weight Range | 1 – 20 g |
| Packaging Accuracy | ±1% to ±10% (material and dosage dependent) |
| Packaging Speed | 20 – 40 bags/minute (material and package weight dependent) |
| Bag Type | Four-side seal; supports irregular/custom (“alien”) bag designs |
| Bag Size Range | Width: 50 – 180 mm; Length: 50 – 150 mm |
| Forming Method | V-shaped forming with adjustable film width |
| Seal Edge Width | 6 mm (oblique mesh; spacing 0.6 mm) |
| Maximum Film Width | ≤ 360 mm |
| Compatible Packaging Film | Composite materials (e.g., BOPP / PE) |
| Bag Pulling System | Motor-driven with frequency control |
| Horizontal Sealing Method | Cylinder-actuated horizontal seal |
| Cutting Method | Flat cut (integrated with horizontal seal) |
| Photoelectric Eye | LX101 |
| Control System | Siemens 7″ color touch screen + Siemens PLC (with error prompts & self-diagnostics) |
| Temperature Control | Yudian dual-way PID temperature control module |
| Electrical Components | Schneider or Omron |
| Product-Contact Material | 304 Stainless Steel |
| Power Supply | 220V / 50Hz, Single Phase, 2.5 kW |
| Required Air Pressure | 6 bar (approx. 87 psi) |
| Air Consumption | 0.3 m³/min |
| Optional UBA High-Viscosity Filler Specifications | |
| Filling Range | 0 – 20.1 ml |
| Filling Accuracy | ±1% |
| Hopper Capacity | 40 L |
| Ambient Operating Temperature | 0 – 40 °C |
| Material Temperature Range | 60 – 70 °C |
| Control Integration | Filling range and speed controlled by main machine |
Application Fields
Food & Beverage Industry: Ideal for packaging seasonings, spice blends, sugar, salt, instant beverage powders, coffee, small granules, sauce samples, honey, syrups, and other products destined for single-serve or sample-sized portions.
Pharmaceutical & Healthcare Sector: Suited for the precise packaging of medicinal granules, powder supplements, functional health products, and small-dose trial packs where consistent sealing accuracy and controlled dosing are paramount.
Cosmetics & Personal Care: Effectively packages shampoos, conditioners, lotions, gels, creams (with appropriate filling systems), and promotional sample sachets, helping brands create attractive, leak-proof retail units.
Chemical & General Industrial Products: A reliable solution for packaging detergents, industrial additives, desiccant granules, and various other small-quantity chemical or daily-use products requiring secure containment in composite film packaging.




