CRYSTAL high frequency welder is created for the production of crystal clear PVC windows and cinema and projection screens with Invisible Seam technology. With the use of special tools, the CRYSTAL HF welder creates a strong and very thin linear weld to join crystal clear PVC film.
CRYSTAL ECO is an economical version of a high-frequency welding machine designed for making invisible welds for example in transparent foil. A manually sliding table of any dimensions facilitates working with wide rolls.
The machine is equipped with a 6-meter-long worktable. Special front and rear guiding trays, combined with precise fabric positioning during welding, ensure efficient operation and automatic welding, cutting, and flattening cycles, resulting in a weld that is practically invisible. Final flattening (if necessary) is achieved using a dedicated, separate electrode, which can also be used for embedding omega profiles or for standard linear welds.
Advanced machine features, such as the ATS™ autotuning system and the WCS™ weld control system, are made possible thanks to the built-in PLC controller integrated with a 10-inch HMI touch screen.
The CRYSTAL traveling welder offers smooth output power adjustment from 1 to 4 kW, combined with a precise electrode motion system and working pressure control.
A vacuum section built into the worktable, along with special magnetic holders, allows for easy positioning of films or fabrics, as well as zipper welding using optional tools.
The CRYSTAL automatic traveling welder is a ready-to-use solution, delivered fully assembled, with no additional installation or setup required.
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.
CRYSTAL ECO HF WELDER was created for the simple and economic production of CRYSTAL Clear PVC windows with Invisible Seam technology.
With the use of special welding tools (electrodes) CRYSTAL ECO HF welder creates a strong and very thin linear weld to bond the Crystal Clear PVC film and flatten the seam.
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.
