Top Film Horizontal Flow Wrapping Machine WS-450

Product Overview

Keypack Intelligent Top Film Horizontal Flow Wrapping Machine WS-450 is a servo-driven automatic flow packing machine engineered for high-precision packaging of regular-shaped products. It delivers 5–20 bags per minute with triple-servo control and PLC operation, eliminating film waste through intelligent bag-length programming and fiber-optic product detection. Ideal for food manufacturers packaging biscuits, bread, chocolate, mooncakes, and instant noodles, as well as industrial operations handling hardware tools, components, and boxed or tray-packed produce.

Key Features and Machine Characteristics

1. Triple-Servo Motor with PLC Control for Instant Bag-Length Setting
Three independent servo motors drive film feeding, sealing, and cutting with synchronized precision. Bag length is programmed digitally and executed immediately—no manual adjustment, no trial runs, no wasted film. This servo flow wrapping machine architecture reduces setup time and material consumption compared to traditional mechanical systems.

2. Fiber-Optic Automatic Product Detection
Built-in fiber-optic sensor detects product presence in real time. The horizontal packaging machine automatically wraps when product arrives and enters standby mode when the infeed is empty, preventing empty bags and conserving packaging film during production gaps or upstream delays.

3. Self-Diagnostic Fault Display
Real-time fault diagnosis system displays error codes and troubleshooting guidance directly on the HMI screen, enabling operators to identify and resolve issues quickly without specialized technical support or extended downtime.

4. High-Sensitivity Photoelectric Color Mark Tracking
Digital photoelectric eye tracks printed registration marks on pre-printed film with precision positioning. Seal and cut positions are digitally adjustable via the control panel, ensuring consistent package appearance and reducing film waste from misaligned cuts on this automatic flow packing machine.

5. Independent PID Temperature Control
Each sealing zone features independent PID temperature regulation, accommodating a wide range of packaging materials including polyethylene (PE), polypropylene (PP), laminated films, and other substrates without manual recalibration between material changes.

6. Positioning Stop Function to Prevent Film Adhesion
When the machine stops, the sealing jaw automatically returns to the open position, preventing film from sticking to hot sealing surfaces and eliminating material waste during pauses, changeovers, or maintenance intervals.

7. Simplified Transmission System for Enhanced Reliability
Streamlined mechanical design with fewer moving parts increases operational reliability, reduces component wear, and simplifies routine maintenance procedures. Accessible components and modular construction enable faster cleaning and part replacement.

8. Software-Based Control for Future-Proof Flexibility
All control logic is software-driven, allowing parameter updates, feature additions, and performance optimization without hardware replacement. This Keypack Intelligent (Kunbupack) horizontal flow wrapping machine design ensures long-term compatibility with evolving production requirements and packaging standards.

Application Areas

Food Industry Packaging Applications:

• Bakery Products: Cookies, biscuits, rice cakes, egg yolk pies, bread rolls, and mooncakes for individual or multi-pack wrapping with this biscuit packing machine and bread packing machine capability
• Confectionery: Chocolate bars, candy bars, and wafer products in pillow-style or end-fold configurations using chocolate wrapping machine functionality
• Instant Noodles: Single-serve brick noodles with seasoning packets for retail distribution, functioning as an instant noodle packing machine
• Snack Foods: Granola bars, protein bars, cereal bars, and other regular-shaped snack items requiring moisture-barrier film protection

Consumer Goods and Daily Necessities:

• Personal care items: soap bars, sponges, and disposable wipes in hygienic sealed packaging
• Household products: cleaning pads, kitchen towels, and paper napkin bundles for retail presentation

Industrial and Hardware Packaging:

• Hardware tools: screwdrivers, wrenches, pliers, and hand tool sets for retail or export packaging
• Fasteners and components: bolts, nuts, washers, and small mechanical parts in protective film wrapping
• Industrial parts: automotive components, filters, gaskets, and replacement parts requiring dust-free packaging

Fresh Produce and Prepared Foods:

• Vegetables and fruits: boxed or tray-packed produce including pre-washed salad greens, sliced vegetables, and fruit portions
• Prepared food items: ready-to-eat meals, deli trays, and portion-controlled servings with tamper-evident seals

Technical Specifications

Bag Type Compatibility:
This bottom film flow wrapper supports back-seal bags, pillow bags, and perforated bags. Gas flushing capability available upon customer request for modified-atmosphere packaging applications.