Panel Bubble Film Sealing and Cutting Machine: Closing Each Panel in a Bubble Film Envelope

This machine encloses individual panels in a bubble film envelope by sealing three sides of a pre-formed film pocket around the product. It is designed for facilities that require consistent, protective packaging for flat goods such as furniture panels, doors, or construction materials. The system operates by running the panel on a conveyor between two layers of bubble film, sealing the open edges to create a closed pouch, and then cutting the film to size.

Overview

The following video demonstrates the sealing and cutting station in operation. It shows the panel entering the film layers and the subsequent sealing process.

How does the machine form the envelope?

The sealing station uses a specific film configuration to create the envelope. Bubble film is fed from a roll located below the conveyor and another roll located above it. As the panel moves along the belt, it passes between these two layers.

The machine relies on the previous cross-seal in the same cycle to join the two webs of film ahead of the panel. Because that cross seal already closes the front edge, the sealing station only needs to seal the remaining three sides. This automation ensures the panel is fully enclosed in a bubble film envelope without manual intervention or the need for a separate front-sealing unit.

What are the technical specifications?

The machine is designed to handle a range of panel dimensions. The published data indicates the following capabilities:

Parameter Specification
Panel Length 900–2,400 mm
Panel Width 200–1,200 mm
Panel Height 100–800 mm
Panel Weight 20–100 kg
Working Table Height About 800 mm
Conveyor Speed About 4–9 m/min
Sealing Power About 6.5 kW
Power Supply 230 V, 3-phase, 50 Hz
Air Supply 6–8 kgf/cm²
Control System PLC

The machine can be designed for other package sizes beyond these standard ranges. The sealing height is adjusted to match the specific thickness of the panel being processed.

How is the sealing process controlled?

Temperature control is critical for consistent seals. The seal bar remains heated between cycles to ensure immediate sealing upon contact. The PLC (Programmable Logic Controller) continuously controls and checks the temperature of the seal bar. This automated monitoring helps maintain seal quality and prevents defects caused by temperature fluctuations.

Positioning is managed by a photo-eye sensor. This sensor detects the panel and sets its position before the sealing cycle begins. This ensures that the seal is applied accurately relative to the panel’s edges.

What is the production capacity?

The production rate is determined by the conveyor speed and the time required for sealing and cutting. A worked example illustrates the calculation: a 2,000 mm panel with a 500 mm gap to the next panel requires 2.5 meters of conveyor length per unit. At a conveyor speed of 6 m/min, the theoretical maximum is 2.4 panels per minute, or about 144 panels per hour.

However, this figure assumes the sealing process keeps up with the conveyor. The actual seal and cut time per panel reduces the total output. Therefore, the true capacity must be verified during a trial run. The 144 panels per hour figure is an illustrative calculation based on conveyor limits, not a guaranteed machine output.

How does the film handling system work?

The film rack is positioned at a low level on the floor. This design allows a single operator to change a heavy bubble film roll without lifting it overhead. The upper film roll is positioned above the conveyor to feed the top layer of the envelope.

The machine requires specific consumables. The width of the bubble film and the size of the rolls must be selected based on the panel dimensions and the desired envelope size. These specifications are confirmed per project to ensure the machine is configured correctly for your materials.

What safety standards apply?

Safety is integrated into the machine design. The seal bar remains hot during operation, so operators must keep hands away from the sealing area. An emergency stop button is available to halt the machine immediately. Film changes should be performed with the conveyor stopped.

For markets requiring CE certification, the machine is designed according to ISO 12100 for risk assessment and EN 415-10 for packaging machine safety. EN 415-10 is a design reference and ISO 12100 a risk-assessment method; certification of a delivered machine is confirmed in the project ordering agreement. The manufacturer does not claim a certificate independently of the project agreement.

How does it integrate with other packaging lines?

This sealing and cutting station is often part of a larger packaging line. It can operate as a stand-alone unit or be linked to stretch wrapping or shrinking machines. When linked, the sealed panel moves directly to the next stage for additional protection or bundling.

The integration requires matching the conveyor speed and control signals between the sealing station and the downstream equipment. The interface details are defined during the project configuration phase.

What information is needed to get a proposal?

To receive a specific configuration, you must provide the following data:

  1. Panel dimensions: Length, width, and thickness.
  2. Panel weight: Maximum weight per unit.
  3. Film specifications: Bubble film width and roll size.
  4. Production target: Required panels per hour.
  5. Line integration: Whether the machine will be stand-alone or linked to wrapping/shrinking equipment.
  6. Site conditions: Air supply pressure (6–8 kgf/cm²) and power supply (230 V, 3-phase, 50 Hz).
  7. We reply with a proposal after we confirm the details. The proposal will include the machine data, layout, and any necessary modifications to meet your specific requirements.

    Related reading

    Sources