In modern bottled water production processes, after the clear water source undergoes multi-stage purification, precise filling, and strict sealing, the product enters a critical phase that determines its market appeal and distribution safety—the packaging stage. While traditional carton packaging provides basic protection, rising material costs, storage space requirements, and environmental concerns are driving the industry to seek more optimized solutions. Meanwhile, increasing consumer demands for product visibility and packaging sustainability are pushing manufacturers toward more competitive packaging methods. It is within this industry context that heat shrink film packaging technology has emerged with unique advantages, becoming the ideal choice for enhancing overall production line efficiency.

Automatic shrink wrapping machines achieve efficient packaging through precise electromechanical coordination. The equipment utilizes a PLC control system synchronized with pneumatic actuators to accurately control the bottle pushing mechanism and thermal sealing operations. The bottle feeding system employs variable frequency speed control, working in conjunction with stainless steel dividing guides to automatically group containers. When sensors detect that a bottle group has reached the preset quantity, the system immediately initiates the packaging process.

The PE film is fed through a gravity-sensing film feeding system, coordinated with film sensors to ensure optimal material utilization. The thermal sealing and cutting unit uses non-stick sealing strips, completes the sealing process under precise control of a time relay, and rapidly sets the shape through an air cooling system. The final packaged units enter an independently temperature-controlled heat shrinking oven, forming tight and stable packaging units at 140°C.

This packaging method not only significantly reduces material costs but also provides 360° product visibility, enhancing shelf appeal. Its compact packaging structure improves logistics efficiency, making it particularly suitable for multi-bundle packaging of mineral water and beverages, helping manufacturers maintain quality while enhancing market competitiveness.