Automatic shrink wrapping machine – SH-45 – SHJLPACK – building / glass

The SH-45 automatic shrink wrapping machine from SHJLPACK provides a highly efficient and integrated solution for protective packaging. This machine combines the essential processes of hood application and heat-shrinking into a single, streamlined work station, minimizing space requirements and simplifying the packaging workflow. Operating in fully automatic mode, the SH-45 is engineered to handle products commonly found in demanding sectors such as building materials and glass. Its ability to create tight, secure shrink hoods makes it ideal for stabilizing and protecting goods during storage and transit. **Integrated Hooding and Shrinking Process** A key feature of the SH-45 is its ability to perform both hood preparation and heat application sequentially within the same footprint. The machine uses a reel of tubular shrink film, typically equipped with side bellows for ease of application. The system supports operations with up to three film reels, allowing for flexibility and reduced downtime for film changes. The hooding process begins with the system automatically unwinding the required amount of film from the reel. The necessary film length is precisely determined by an external reading system that measures the product height. Once unwound, a dedicated welding and cutting unit prepares the tubular film, creating a ready-to-apply hood. This prepared hood is then transported by a mechanical gripping system to the central area of the shrinking arch. Here, a specialized hooding group, comprising four mobile mechanical pliers, takes over. Starting from the center, these pliers move outwards, spreading the four flaps of the hood. This outward movement is synchronized with the opening of internal crosspieces, ensuring the hood is perfectly shaped into the correct rectangular form required for precise and easy placement onto the product. Following hood application, the product with the applied film is moved under the shrinking mechanism. Heat-shrinking is achieved using a highly effective gas-fired ring oven, which applies uniform heat to tightly conform the film to the product's contours, creating a stable and weather-resistant package. **Efficient Cycle Operation** The entire operational sequence, from film unwinding and hood preparation to hood transfer and application, is intelligently integrated into the machine's cycle. Crucially, many of these preparatory steps, such as hood creation at the rear of the machine, are performed concurrently with the feeding of the next product to be packaged or run in parallel with common cycle phases. This design ensures that these necessary steps do not add to the overall machine cycle time, maintaining high throughput and operational efficiency. The SH-45's functions are managed by a sophisticated PLC (Programmable Logic Controller), providing comprehensive control over both automatic and manual operations, ensuring reliable and repeatable packaging results. **Key Features & Specifications** To provide a clearer overview, the key characteristics of the SH-45 machine are summarized below: | Feature | Description | | :---------------- | :--------------------------------------------------- | | Operational Mode | Automatic | | Primary Function | Integrated Hooding and Heat-Shrinking | | Work Station | Single combined unit | | Film Type | Tubular shrink film with side bellows | | Film Reel Capacity| Supports up to 3 reels | | Shrinking Method | Gas-fired ring oven | | Control System | PLC (Programmable Logic Controller) | | Target Applications| Building materials, Glass products | | Hood Preparation | Automatic unwinding, welding, cutting based on height | | Hood Application | Mechanical gripping and plier system | | Cycle Efficiency | Preparation phases run concurrently with product feed | The SH-45 represents SHJLPACK's commitment to providing robust, automatic packaging machinery that delivers reliable performance for challenging industrial applications like building and glass product packaging. Its integrated design and efficient cycle ensure products are securely protected and ready for the supply chain.