The high frequency welder for complex shapes – CORNA is designed for making small shape multilayer (up to 8 layers) welds for technical textiles products where conical, corner and multidimensional shapes are required.
The tooling (electrodes) in the CORNA high frequency welder for complex shapes can have custom shapes – rectangular, round, triangular or oval – depending on the final product look. FlexEL flexible electrode can be also used for changeable layers welds (e.g. going from 2 layer weld to 8 layer weld and coming back to 2 layer weld again). Connecting 3D corners can be achieved easily with the column design of the welding head and footing.
Operation is easy and intuitive. The machine is equipped with freestanding control panel and HMI touch screen. It can also be put on wheels for ease of movement and placing in a desired, for the comfort of production, place.
New generation Hi-Q3 reliable HF generator with 4kW of output power provides consistent welds and minimum RF exposure for operator. Machine is made to CE regulations and tested according to ISO17025.
Full diagnostic testing and certification of the local factory EMC/EMS parameters according to the latest guidelines required by the CE & UL standards. We have our own ISO 17025 certified production control and EMC laboratory providing validation of each required process parameters and the whole technological production cycle.
High frequency welders manufactured by Zemat Technology Group are designed and built in accordance with current European requirements for machine safety and energy efficiency. The machine design incorporates technical solutions that enhance welding process stability, reduce energy losses, and increase production repeatability.
HF Smart Control™ is a set of structural and electronic solutions implemented in high frequency welders, including:
The HF/RH welders use high frequency generators with microprocessor-based power control, enabling precise adjustment of energy to the process parameters. The system continuously monitors operating conditions and dynamically regulates power in real time. As a result, energy consumption can be reduced compared to heat sealing technologies and many impulse-based systems. The actual level of savings depends on the material, application, and process settings.
The ATS ensures precise impedance matching and automatic generator tuning during machine operation. This stabilizes the welding process, reduces the risk of instability, and minimizes the possibility of arcing. Fast reflected power control protects HF circuit components and improves weld repeatability.
Modern HF generators achieve energy efficiency levels of approximately 70–90%, depending on configuration and operating conditions. Band-pass filters reduce harmonic distortion, while lower thermal losses decrease heating of machine components. This results in stable operation and extended service life of key components.
