Welding packaging

Welding is becoming increasingly important in the packaging industry as well. Flexible (e.g. films) or firm (e.g. drinks cartons) packaging types can be joined in this way. Ultrasonic sealing is a special kind of welding. The heat is generated only inside of the materials to be welded. This means that the contents of the packaging are only exposed to a very minimal thermal load. Anvils also focus the energy and ensure slim and tight seals. This saves energy and packaging material, and is therefore more environmentally friendly than other sealing methods.

Ultrasonic Sealing

Visually appealing, long shelf life and 100% tight – this is what the ultrasonic sealing of packaging can achieve.

application engineering

Ultrasonic sealing is suitable for various applications

Cardboard packaging with thermoplastic coating

Valves-and-vents-on-films-filter-materials — Screw caps on coated cardboard packaging/films

Especially suited to welding films

Film packaging in particular benefits from ultrasonic sealing. Here, product residues in the weld seal area are displaced. 100% tight seams are the result. The low thermal load means that the film does not shrink – this is important for a good product appearance.

Ultrasonic Film Welding

Ultrasonic welding of film is an efficient process for joining films and is particularly common in the packaging industry.

Perfect product

Ultrasonic sealing technology for packaging technology

Tight packaging with high process speeds, even with contaminated seal areas – that’s what the sealing technology from Herrmann stands for. After the packaging machine has been switched on, the ultrasonic tools are immediately ready for use. Short sealing times and cold tools allow the packaging material and product to be handled with a particularly high level of care. Herrmann offers ultrasonic solutions for many different forms of packaging and applications that can be integrated quickly and easily into new and existing packaging systems.

TSM Top seal modules

The focus is on the intermittent sealing of top seals, of stand-up pouches, for example. The TSM is used for the packing of liquid, powder or paste feed materials. The ultrasonic vibration results in a reliable joint quality, also with product residues in the seal area.

LSM Longitudinal seal modules

The LSM Fin longitudinal seal module stands for high quality, continuously manufactured sealing lines on bags (horizontal and vertical) and on chained bags. Easily exchangeable sealing tools allow for an individual and material-saving seal design.

VSM Valve seal modules

The vent applicator from Herrmann Ultraschall is a compact module which is used for the sealing of aroma protection and degassing vents in an exceptional variety of packaging machines.

Components

Industry solutions

A variety of possible uses

The ultrasonic welding technology is used for the packaging of products in the FOOD, MEDICAL or CONSUMER industries. Everywhere where permanently strong, tight and visually flawless packaging is required. With all sealing applications, the ultrasonic generator guarantees reproducible results. With specially developed functions and external sensors, it is possible to safely detect faulty situations and for packaging with damaged seals to be rejected.

Branch solution

FOOD

For packaging with thermoplastic sealing layers, such as capsules, pouches, drink cartons, cups and trays, ultrasonic sealing provides a large number of options: above all, high cycle rates and tight seals despite potential product residues in the seal area. Ultrasonic technology fulfills all criteria of process optimization and validation crucial to food packaging companies.

Branch Solution

MEDICAL

The requirements for quality and safety of medical parts are very high: in addition to tightness, strength and minimal generation of particles, process validation and process stability also are important factors in manufacturing. Ultrasonic welding allows for outstanding process monitoring and traceability, as well as data acquisition.

Branch Solution

CONSUMER

Individual requirements for the wide range of consumer components are very high: tightness, strength, dimensional accuracy, perfect visual appearance and surface finish are standard. With the ultrasonic welding technology, an economical joining technology is made available for production of small series through to fully automated manufacturing processes at maximum production flexibility.

Advantages of Herrmann in the area of packaging technology

Our ultrasonic sealing equipment delivers benefits that enhance your efficiency and quality assurance. This is because it reduces instances of packages that leak or would otherwise be rejected. The result is a significant reduction in labor and materials.

Sound expert knowledge of the sealing of packaging in a wide variety of applications
Appropriate solutions for the most common packaging machines – development and production that’s “Made in Germany”
Worldwide service support
From the first sealing test to the start-up - HERRMANN ENGINEERING

Range of services

Supporting application laboratories worldwide by providing services ranging from initial sealing tests through to the start-up of the ultrasonic sealing station in the packaging system. With HERRMANN ENGINEERING, Herrmann applies its know-how throughout the entire development process.

Our extensive engineering capabilities allow us to be a true partner you can count on to deliver reliable performance in every application. We stand by your side to help you meet objectives and accomplish goals. That’s why when we say that our mission is “bonding more than materials,” we mean it.