CRYSTAL

Travelling-Head HF Welder for Crystal Clear PVC | CRYSTAL

CRYSTAL

Automated travelling-head HF welder for crystal clear PVC

An HF/RF machine for manufacturing windows, screens, curtains and covers from transparent PVC film. The welding head travels along the worktable, making it easier to handle large material formats.

  • travelling welding head
  • Invisible Seam technology
  • automatic welding, cutting and seam smoothing cycle
  • for large PVC film formats
  • options for Omega profiles and zippers
Machine overview

Travelling-head welder for crystal clear PVC film

CRYSTAL was designed for manufacturing transparent PVC film components where joint appearance, weld strength and convenient handling of large material formats are important. The machine is ideal for crystal clear windows, projection screens, curtains, pergolas, covers and PVC- or PU-coated technical textiles.

The welding head travels on dedicated rails, allowing the operator to carry out the process without moving the entire product. A 6 m worktable, material handling troughs, a vacuum section, laser guides and magnetic holders help keep film, fabric or finished large-format components securely positioned.

Automatic welding, cutting and seam smoothing cycle

CRYSTAL performs an automatic cycle comprising welding, cutting and preliminary seam smoothing. If required, final smoothing can be carried out by a second, independent working head.

This process helps create a thin, even and less visible joint in transparent PVC film. The machine can also be used to weld Omega profiles, attach zippers and produce standard linear welds, depending on the tooling used.

Key benefits of CRYSTAL

  1. Travelling welding head
    Makes it easier to work with large formats of film and technical textiles without moving the entire product.
  2. Thin welds with Invisible Seam technology
    Produces neat, barely visible joints in crystal clear PVC film.
  3. Automatic operating cycle
    The machine performs welding, cutting and preliminary seam smoothing in a single cycle.
  4. Extended welding capabilities
    The machine can perform final seam smoothing, standard linear welding and Omega profile welding, depending on the tooling used.
  5. Stable material positioning
    A vacuum section, magnetic holders and laser guides help align film or fabric evenly before welding.
  6. Production-ready workstation
    CRYSTAL is supplied as a complete solution, with no need for complex assembly or special installation.

Additional machine features

  • 6 m worktable
  • 4 m working length with the machine parked
  • electrode length up to 680 mm
  • stepless output power adjustment from 1–4 kW
  • precise electrode movement mechanism
  • working pressure control
  • two rear troughs and one front trough for material handling
  • vacuum section for easier film positioning
  • magnetic holders to stabilise film and fabrics
  • laser guides for accurate material alignment
  • zipper welding with optional tooling
  • Omega profile welding capability
  • 10-inch HMI touchscreen
  • ATS™ Autotuning system
  • WCS™ system for welding process monitoring
Applications

Products made from crystal clear PVC film and technical textiles

CRYSTAL is ideal for products where weld appearance,
large material formats and a repeatable joining process for film or coated fabrics are important.

  • transparent windows made from crystal clear PVC film
  • transparent partitions and curtains
  • cinema and projection screens
  • home cinema screens
  • pergolas with Omega profiles
  • zippers welded to PVC film
  • canopies, sunshades and roller blinds
  • tensile structures and tents
  • shading systems
  • truck tarpaulins
  • small and large PVC- or PU-coated technical textiles
Control Panel

Simple operation, full process control

Zemat high frequency welding machines are equipped with a touchscreen HMI panel and PLC control. The interface allows operators to set process parameters, save welding recipes, monitor the welding cycle and access key production data.
  • touchscreen HMI
  • PLC control
  • saved welding recipes
  • process parameter monitoring
  • machine performance statistics
  • password-protected access levels
  • remote diagnostics and software updates via VPN
HMI Panel Sterowania

Safety and process control

Zemat high frequency welding machines use systems designed to support operator safety, protect key machine components and maintain process stability. These solutions help protect the electrode, material, generator and work area, while process monitoring systems enable fast detection of irregularities and help maintain repeatable welding parameters.

  • AntiFlash™ – a fully solid-state, maintenance-free system that protects the electrode and material against electrical arcing.
  • WCS™ – a system for monitoring welding cycle parameters.
  • ATS™ – a system for automatic adjustment of HF/RF output power.
  • EMC mains filters designed to protect the customer’s electrical network against electromagnetic interference.
  • Enclosed and shielded welding chamber designed to effectively protect the operator from exposure to electromagnetic fields.
  • The machine complies with current machinery safety requirements and applicable standards. Compliance is confirmed by complete Technical Documentation, an EC/EU Declaration of Conformity supplied with each machine, and CE marking.
  • Optional safety light curtains for an increased level of operator protection.

Measurement Laboratory

For machines manufactured by Zemat, mandatory electromagnetic field (EMF) emission measurements are carried out in the working environment. The tests are performed by the Mobilab laboratory operating within Zemat Technology Group. The measurement laboratory works in accordance with ISO/IEC 17025 and holds PCA accreditation, confirming the quality of its services and the reliability of measurement results.

mobilab laboratorium pomiarowe
HF Smart Control™

HF Smart Control™

Zemat HF welding machines are designed in accordance with European requirements for machinery safety and energy efficiency. The applied solutions support process stability, reduce energy losses and help maintain repeatable production parameters.

HF Smart Control™ includes:

  • Power consumption optimization
    Systems based on industrial programmable logic controllers (PLCs) measure and regulate the energy used during the welding process in real time. This allows power consumption to be matched to actual process requirements and helps reduce unnecessary electricity use.
  • ATS™ automatic tuning system
    ATS™ automatically adjusts and monitors welding process parameters, helping maintain the correct cycle conditions and use the supplied energy efficiently.
  • High-efficiency HF generators
    Modern HF generators provide stable operation, reduce thermal losses and support longer component service life.
Tooling

Custom electrodes and tooling

We can design, manufacture and commission dedicated electrodes, positioning fixtures, cutting dies and other process tooling for the machine. Our in-house tooling department develops solutions matched to the component geometry, material type and specific welding process requirements.
Technical Service

Service and technical support

When purchasing a Zemat machine, customers also gain direct access to the team that knows its design, configuration and welding process. Zemat machines are supported by our own technical service team, so there is no need to rely on third-party providers or explain the machine and process from the beginning.

We support customers during installation and commissioning, train operators and maintenance teams, and provide technical service worldwide. In many cases, issues can also be diagnosed and resolved remotely by checking machine settings, recipes, process parameters or system messages without waiting for an on-site service visit.

  • Direct access to Zemat technical service
  • Faster diagnostics and reduced downtime
  • Support from specialists familiar with the specific machine and process
  • Installation, commissioning and service support worldwide
  • Training for operators and maintenance teams
  • Remote support for settings, recipes and process parameters
Contact Form

Let’s talk about your production process

Every welding process has different requirements, so the machine configuration is selected according to the specific product, material, component dimensions and planned production conditions.

Tell us what you need to weld and how your process works. Based on this information, we can help select the right machine model, generator power, working area, operating method, tooling and any additional equipment required.

What is the CRYSTAL welder used for?

CRYSTAL is a travelling-head HF welder designed to produce thin, neat welds in crystal clear PVC film and PVC- or PU-coated technical textiles.

How does CRYSTAL differ from CRYSTAL ECO?

CRYSTAL has a travelling head and is designed for larger material formats. CRYSTAL ECO is a more economical version for manufacturing components from crystal clear PVC film.

What is Invisible Seam technology?

Invisible Seam technology produces a thin, less visible weld in transparent PVC film. On CRYSTAL, the process can include welding, cutting and seam smoothing.

Is CRYSTAL suitable for large PVC film formats?

Yes. The travelling head, long worktable, material handling troughs, vacuum section and magnetic holders make it easier to work with large sheets, rolls and oversized components.

What products can be made with CRYSTAL?

CRYSTAL is ideal for manufacturing crystal clear PVC windows, transparent curtains and partitions, projection screens, pergolas, canopies, roller blinds, tents, tensile structures and truck tarpaulins.

Can CRYSTAL weld Omega profiles?

Yes. CRYSTAL can be used to weld Omega profiles, depending on the machine configuration and tooling used.

Can the machine weld zippers?

Yes. CRYSTAL can use optional tooling to weld zippers to crystal clear PVC film.

How does the travelling welding head work?

The welding head travels on rails along the worktable. This allows large materials to be processed without moving the entire product.

What materials can be welded with CRYSTAL?

CRYSTAL is primarily designed for crystal clear PVC film and PVC- or PU-coated technical textiles. Suitability for a specific material should be confirmed through a welding trial.