Products
Impulse heat sealing is a precise and controlled process where seal quality depends on the interaction between temperature, time, pressure, cooling, and material behaviour.
Under Technology Explained, we describe the fundamental principles of impulse sealing and how modern sealing systems operate in real production environments. The focus is on understanding the process—not on individual products.
You will find clear technical explanations covering:
- Sealing parameters and their mutual dependence
- Material influence on seal quality and stability
- Sealing bands, tools, and mechanical design
- Electrical and thermal system design principles
The section also explains how RESISTRON® and CIRUS® technologies are applied to achieve stable, repeatable, and energy-efficient sealing processes.
This knowledge supports correct system selection, process optimisation, and reliable production performance—from initial concept to full-scale operation.
RESISTRON
How RESISTRON Works The Sealing Band as a Temperature Sensor At the beginning of each sealing cycle, the sealing band is cold.RESISTRON measures the electrical
CIRUS
Cirus – Cermet Integrated Resistive Ultrafast Sensorless heaters Heatsealing tools are the outcome of an ongoing development pro-cess at ROPEX GmbH lasting many years. Extensive
Impulse Transformer
Selecting the right impulse transformer Choosing the correct impulse transformer is more than a power calculation.It requires understanding the complete sealing process and the conditions
Non-stick PTFE Tape
Tape PTFE/Kapton PTFE-tape This versatile material is used in many ways in heatsealing set-ups. It is sometimes used beneath the heatseal band on the heatseal
Heat sealing band underlay
Underlays and Silicone Backups for RESISTRON® Impulse Sealing Systems In RESISTRON® impulse sealing systems, the underlay and the opposing sealing bar facing are critical functional
Heat-seal bands
Most believe that impulse heat sealing is limited to straight seams, which is simply not the case. In fact special shapes can be created to