Views: 0 Author: Site Editor Publish Time: 2025-11-25 Origin: Site
Proper adjustment of cutting speed and pressure is essential for achieving clean cuts and strong seals when operating a Hot Sealing Cold Cutting Machine. Incorrect settings can lead to poor sealing quality, uneven cutting edges, material deformation, or unnecessary wear on machine components. This guide explains how to adjust cutting speed and pressure correctly to ensure stable performance in packaging applications.
A Hot Sealing Cold Cutting Machine uses heated sealing blades to seal the film, followed by a cold cutting blade to separate the material. This sealing and cutting method is widely used in the packaging industry, especially for plastic films such as PE, PP, and tubular film, because it delivers smooth edges without melting or burning the cut area.
To achieve optimal results, sealing temperature, cutting speed, and pressure must work together in balance.
Cutting speed affects production efficiency and cut accuracy
Pressure determines sealing strength and cutting completeness
Improper settings can cause weak seals, incomplete cuts, or film stretching
Correct adjustment improves product quality and extends machine lifespan
Balancing these parameters is especially important when processing different film thicknesses or materials.
Begin with a medium cutting speed recommended by the machine manufacturer. This helps avoid excessive tension or unstable film movement during initial setup.
Thin film: Use a higher cutting speed with stable feeding
Thick film: Reduce cutting speed to allow sufficient sealing time
If the speed is too fast, sealing may be incomplete. If too slow, material deformation may occur.
Check the cut edges during operation:
Smooth and straight edges indicate correct speed
Jagged or uneven edges suggest excessive speed or unstable feeding
Fine-tune the speed until cutting consistency is achieved.
Apply pressure gradually rather than setting it too high at once. Excessive pressure may damage the sealing blade or deform the film.
Soft films require lower pressure
Thicker or stiffer films need higher pressure to ensure full sealing
The goal is to achieve firm sealing without crushing or thinning the material.
After adjustment, inspect the sealed area:
The seal should be flat and uniform
The cut should be complete with no tearing
If the seal is weak, slightly increase pressure. If film deformation occurs, reduce pressure accordingly.
Cutting speed and pressure should always be adjusted together:
Higher speed usually requires slightly higher pressure
Lower speed allows reduced pressure
Perform test runs whenever you change material type, thickness, or production speed to maintain consistent results.
Increasing speed without adjusting pressure
Applying excessive pressure to compensate for low temperature
Ignoring material thickness variations
Skipping test runs before mass production
Avoiding these mistakes helps reduce material waste and machine downtime.
Regularly inspect sealing and cutting blades
Keep pressure mechanisms clean and lubricated
Calibrate speed and pressure settings periodically
Record optimal parameters for different materials
Proper maintenance ensures long-term accuracy and repeatable performance.
Knowing how to adjust cutting speed and pressure on hot sealing cold cutting machines is crucial for maintaining high packaging quality and production efficiency. By carefully balancing these parameters according to material type and thickness, operators can achieve clean cuts, strong seals, and stable machine operation.
For packaging manufacturers working with plastic films and tubular materials, correct adjustment of cutting speed and pressure not only improves product consistency but also reduces maintenance costs and material waste.
