SIGNA series single or double station shuttle HF welders with 6, 10, 15 or 20 kW stable controlled high frequency power outputs are designed for various industrial high frequency welding and heat sealing applications requiring precision flat surface for product positioning and complex shape welds.
SIGNA or SIGNA DUO with automatic, pneumatically driven work trays are perfect machines for serial production of blister & clamshell packages, medical containers like blood or ostomy bags, laboratory, rehabilitation equipment, automotive parts and assemblies, cosmetics, etc. Heated electrode plate with temperature presets gives high accuracy for consistent welding of hard PVC/PET foils or PU foams.
The high frequency welder can be easily converted to a standard Heat Sealer for applications where HF welding is not necessary or impossible (e.g. PP or PE materials). The machine is equipped with quick change four point electrode holder. Custom built tooling and electrodes are available upon request. We have our own in-house tooling department which will design and make any electrode and die required for any demanding production needs.
With the use of 10″ touch screen HMI and programmable PLC, operator can easily save hundreds of weld/seam recipes and upload or download them to/from USB drive. Full advanced programming functionality, including ATSTM Autotuning, WCSTM Weld Control Systems and VPN client provide excellent flexibility for demanding and advanced industrial environment. All available options, settings and safety features make this machine a perfect tool for high-end production where precision, durability and strength is the key.
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.
