packaging sealing

VSM Valve seal modules

Thanks to the integrated cutter, two working processes can be completed in one process step: Sealing the vent and piercing the film. In this way, the incision in the film and the valve are always perfectly mutually aligned.

35 kHz operating frequency
100 - 200 ms process cycle
Integrated cutter

Due to its compact design type and the assembly of a mounting plate, the valve sealing module is easy to incorporate in new and existing bag machines and tray sealers. The recipe management on the generator enables a rapid changeover to the appropriate sealing parameters when changing the film. Standard sonotrodes are available for selection for the standard vents.

Compact design with integrated cutter
Short process cycles
Convenient recipe management
Sonotrode designs optimized for standard vents

application engineering

Application examples

Coffee
Pickled cabbage / red cabbage
Yeast dough

Advantages of ultrasonic sealing technology

High output due to short sealing times
No depositing of film on the cold tools
Instant on: No heating or cooling of the tools

Herrmann Engineering

more details

APPLICATION ENGINEERING

We work with you to develop customized solutions which correspond to your demands precisely. As experts in our field, we develop applications which make your project a success. Here, we rely on long-standing technology partnerships and the results from over 40 high-tech laboratories around the world.

PERFECT PRODUCT

We offer a premium product portfolio with the highest quality standards – Made in Germany. We stand for top weld results, professional integration and durability of all ultrasonic components and modules for an economical overall solution.

GLOBAL SERVICE

We guarantee reliability, safety and a quick on-site service as part of our concept, and immediate support in over 20 countries. For you, this means quick help when you really need it – at any time and in your local language.

SUSTAINABILITY

A simple route to more sustainability: not a problem with our efficient ultrasonic technology! The ability to do without joining materials and the low energy consumption mean that your production process will automatically become more sustainable. Reliable bonding will also reduce your rejects and prevent you from generating unnecessary waste.

News & Events

All about News & Events for packaging sealing

News

Save 75% plastics

Together with the packaging service provider Verdesoft, Herrmann Ultraschall has developed a cup and a tube that can be closed by ultrasonics. The packaging concepts have a comparable product protection as conventional plastic packaging and save up to 75% plastic.

News

Ultrasonic sealing: Enabling Sustainability

Mono-materials and paper composites for packaging are increasingly in demand and the number of inquiries regarding new recyclable materials is increasing at the ultrasonic laboratory of Herrmann Ultraschall. Many of the major food companies have set themselves high sustainability targets and are testing the new materials.

News

Ultrasonic welding of bio-based plastics

As of now there are few inquiries for the welding of recycled materials, ie plastics that already have been processed once or more before. The weldability must be determined empirically in the test laboratory.

News

Circular economy

Ultrasonic technology can also deliver good sealing results with narrow process limits, especially with regard to tightness and visual appearance. The thermal expansion is kept to a minimum. Thermal processes demonstrate disadvantages of excessive heat input, especially in the continuous welding of film webs.

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.

Ultrasonic welding basics

Ultrasonic sealing

The crucial difference from conventional sealing using thermal jaws is the type of heat introduction. In thermal sealing, the heat comes from outside. The support layer is also warmed and can also be fused.

Perfect Product

Related products

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.

ULTRAPACK

Ultrasonic generators for packaging technology