High-frequency welding

This technique applies to plastic materials in the form of single, semi-rigid or rigid sheets. Thermoplastics such as phthalate-free PVC, TPU and EVA are the most commonly used. High-frequency welding joins two or more sheets together by applying an electromagnetic field. The zone reproduces the shape of the tooling called an electrode.

The high-frequency welding method depends on :

  • Type of material
  • Product shape
  • Product dimensions
  • The number of sheets to be assembled

Our expertise enables us to assist you in your choice of materials and design:

  • Specific, rounded shapes
  • Low or high temperatures : – 80 °C and + 80 °C
  • Mechanical resistance
  • Compatibility with many active pharmaceutical ingredients
  • Suitable for various types of sterilization
  • UV resistance
  • O² and CO² barrier
  • Airtight and liquid-tight

Step 1

Study / specifications

Step 2

Raw material

Step 3

Welding

Step 4

Controls

Step 5

Packaging & shipping

Advantages of high-frequency welding

  • High mechanical strength of the weld
  • Complex, rounded shapes
  • Possibility of combining a flexible container with a thermoformed product
  • Rapid prototyping
  • Custom design
  • High speeds
  • Moderate tooling costs
  • Accessories (foam, beads, etc.) can be added inside
  • Different tubes can be integrated …

Product types

  • Watertight devices: free-standing bags, enema bags, blood bags, collection bags, dialysis bags, sampling bags, infusion bags, cerebrospinal fluid bags, anti-bedsore cushions
  • Thermoformed and flexible medical devices: laser protection sleeves, ostomy pouches
  • Heat exchanger pocket

Related services

  • Sourcing of components (needles, tubes, etc.)
  • Component and tube assembly business
  • Packaged in flexible bags
  • Customization (marking, logo, graduation, etc.)
  • Leak test on request
  • Complete traceability from welding to assembly

Application markets

  • Pharmaceuticals
  • Biotechnology
  • Veterinarian
  • Paramedical
  • Medical

Our strengths :

  • Proven expertise in high-frequency welding combined with knowledge of plastic materials(TPU, EVA…)
  • Eco-design: from choice of material to flexible bag packaging
  • An integrated design and engineering department to produce prototypes/models, facilitating product development and fine-tuning.
  • A quality department backed up by a laboratory to carry out tests (traction, tightness) on request
  • A comprehensive made-to-measure service including sourcing, component assembly, personalization and assembly (printing, labeling, marking, etc.).
  • A plant dedicated to this know-how, which also has clean rooms and works with major international groups.
  • A large-scale industrial park enabling us to offer complete surgical kits (thermoformed trays, components, assembled pouches, Tyvek sealing).
  • Quality control and risk management throughout the product process

For further information