automatic shrink wrapping machine combines a film sealing unit with a heat shrink tunnel to deliver fast, consistent, and secure packaging. Utilizing precise temperature control and airflow circulation, it evenly shrinks film around products, ensuring tight, tamper-evident sealing and reliable protection against dust, moisture, and handling damage.
The automated sealing system minimizes manual intervention, improving throughput and operational efficiency. Designed for flexibility, it supports various product sizes and packaging formats, making it suitable for both medium and high-speed production lines. An integrated cooling section ensures rapid film stabilization, enabling immediate downstream handling and logistics.
Mian Feature
1.The Machine adopts the advanced touch screen which makes operation easier, ‘Omron’ programmable logic controller (PLC) and AC contactor, ‘AirTAC’ cylinder, and all the rest parts adopt international famous brand.
2.Upper and down electromagnetic switch prevents sealing mistakes, and protect operator.
3.Automatic alarm security system protects machine and operator.
4.Large power conveyer motor, with stepless speed regulating, ensures smooth feeding.
5.Two large power fans make the temperature of shrink tunnel every even and stable, this ensures the excellent effect of shrinking in one time.
6.Super cooling system cools the packing and makes the figuration perfectly.
Technical Parameters
| 1 | Model | NP-4050 |
| 2 | Voltage | 220V 50-60 Hz |
| 3 | Power | 3KW |
| 4 | Capacity | 6-8Packing/min |
| 5 | Air pressure of working | 4-6 kg/cm2 |
| 6 | Width/Thick | Max: 590mm/0.03-0.25mm |
| 7 | Sealing/Shrinking Time | 0.01-105s |
| 8 | Max Packing Dimension | 500x300x400mm |
| 9 | Min Packing Dimension | 250x50x100mm |
| 10 | Machine Size | 1060x1600x1930mm |
| 11 | Conveyor Driver Size | 1700x410x400mm |
| 12 | Machine Weight | 370 KGS |
| 13 | Shrink Film | PE, POF, PVC, PP |
Scope of Application
Suitable for shrink wrapping products such as pop-top cans, mineral water, bottles, beer, and other beverages, with or without bottom trays. It operates in conjunction with a PE shrink tunnel to achieve tight, stable, and high-quality packaging results.
What are the main components of a shrink wrapping machine?
automatic shrink wrapping machine is composed of several key systems that operate in coordination to complete the packaging process:
Conveying and Product Handling System
Transfers products smoothly from the upstream line to the wrapping station and arranges them in preset configurations (such as 2×3 grouping).
Film Feeding and Cutting System
Delivers film from rolls with high precision, positioning and cutting it to the required length.
Wrapping and Folding Unit
Uses synchronized mechanical actions to wrap the film tightly around the product group, depending on machine design.
Heat Sealing and Shrink System
Applies heat to seal the film or directs products through a shrink tunnel to achieve a tight, form-fitting package.
Electrical Control System
Powered by a PLC and servo drives, this system ensures accurate synchronization, stable performance, and fully automated operation.
How Does a Shrink Wrapping Machine Work?
In the shrink wrapping process, products are first enclosed in a loose layer of polyolefin film. The machine then applies controlled heat, causing the film to uniformly contract and conform tightly to the product surface. This results in a secure, compact package that provides protection and unit stability.
More Flexible Shrink Wrapping Machine
To better understand which equipment to choose in the packaging industry, here are several flexible film-wrapping solutions offered by Npack:
1.L-Bar Sealers
Npack offers a wide range of L-bar sealers, including cost-effective all-in-one sealer and shrink chamber systems. These machines are ideal for low to medium production environments, combining sealing and shrinking in a single unit for efficient operation.
2.Side Sealers
Side sealing machines wrap products in a continuous film tube, sealing along one side and cutting them into individual packages with a cross seal. Compared to L-bar sealers, they are more suitable for products of varying or unlimited lengths, making them highly flexible for different packaging needs.
3.Shrink Tunnels
Shrink tunnels are heated systems installed over conveyor lines. Products are loosely wrapped with shrink film before entering the tunnel, where heat causes the film to shrink tightly around the items. Npack provides a full range of shrink tunnels—from compact 110V models to large, heavy-duty systems—with various conveyor types, sizes, and voltage options for different applications.
4.Flow Wrappers
Flow wrapping ensures product protection by tightly sealing film around items, minimizing movement and reducing the risk of damage. It uses precise amounts of film to create clean, secure packages without excess material.
5.Poly Bundlers
Poly bundling is used to group products of the same size into multi-packs, wrapped with either clear or printed film. Printed film requires customized plate designs. Modern poly bundlers are increasingly cost-effective and available in multiple configurations, including manual feeding, conveyor-fed, and right-angle automatic systems.
