Tunnel Shrink Packaging Machine – Model CS-25LE

Film Loading & Preparation

The operator installs the PVC shrink-film roll on the unwinding unit.
The film follows a guided path designed to maintain proper alignment and tension before entering the sealing zone.
This pathway ensures clean film separation and optimal conditions for sealing and cutting.

Product Size Adjustment (Width & Height)

• The sliding adjustment table allows the operator to set the film width precisely based on the product’s dimensions.

• Film excess generated during repeated sealing cycles is automatically transferred to the waste-collection unit.

• The sealing-conveyor height is adjusted to half of the product height to ensure smooth entry into the heat tunnel and prevent film wrinkles or misalignment.

Sealing & Wrapping Process

The operator opens the upper film layer, places the product between the two layers, and positions it on the PVC conveyor.
By pressing the sealing push-button, the pneumatically assisted L-sealing system activates:

• Accurate, strong, and consistent sealing

• Optimized release clearance

• Reduced film burn and increased seal-blade lifetime

This results in a tightly sealed pack prepared for shrink processing.

Heat-Tunnel Processing

The sealed package is transferred automatically into the high-efficiency heat tunnel.

Inside the tunnel:

• Optimized hot-air circulation shrinks the film uniformly around the product

• The film forms a tight, glossy, and protective surface

• At the tunnel exit, a cooling-fan section enhances the finish, stabilizes the wrap, and improves appearance for retail presentation

Integrated Automation, Control & Safety Systems

The CS-25LE incorporates a complete industrial-grade control architecture, including:

• Precision temperature-control and monitoring modules

• Electronic protection circuits against overload and temperature faults

• Upper and lower limit sensors for safe and accurate mechanical motion

• Industrial heating elements optimized for shrink-tunnel airflow

• Step-down transformer dedicated to the sealing section

• Power Regulator for stable heater performance

• PLC-based controller for process logic and interlocks

• HMI touchscreen for user-friendly adjustment, monitoring, alarms, and automation settings

This combination delivers superior reliability, energy efficiency, and stable long-term operation.

Industrial Applications

The CS-25LE is suitable for shrink-wrapping small to medium packs using PVC film.
It delivers:

• Surface protection

• Bundle integrity

• Shelf-ready appearance

• Dust and tamper prevention

Maximum Product Capacity

• Size: 200 × 400 × 400 mm

• Weight: up to 5 kg

Technical Advantages

• High-speed, durable sealing mechanism

• PLC + HMI automation with precise thermal and motion control

• Energy-efficient tunnel design with optimized hot-air circulation

• Adjustable conveyor height and film-feed width

• Heavy-duty steel structure for continuous industrial operation

• Accessible maintenance zones for easier servicing

• Uniform shrink quality supported by exit cooling-fan section

• Suitable for medium-volume production lines requiring consistency and stability

Final Summary

The CS-25LE Tunnel Shrink Wrapper is a compact yet industrial-grade solution engineered for manufacturers seeking:

• High reliability

• Uniform shrink quality

• Automated process control

• Clean sealing performance

• Long-term operational stability

Its combination of precision mechanical design, advanced temperature control, and robust PLC-based automation makes it ideal for food, cosmetics, electronics, and printing industries.