Packaging sealing

TSM Top seal modules

The top seal module from Herrmann brings together the experiences from more than 1,000 top-seal sealing stations on the market. With its modular design, it is configurable for a variety of packaging machine types.

30 and 35 kHz operating frequency
up to 207 mm sealing length
up to 1200 N sealing force

The PACKLINE modules from Herrmann achieve strong and hermetic sealing. Burns caused to the packaging material during machine downtimes are safely prevented. The top seal module is optimally suited for integration in new machinery or as retrofit for existing machine designs. If the tools are designed with protection class IP65/67, the top seal module is also suitable for use in wet environments with advanced cleaning capability requirements.

The pneumatic generation of force is integrated in the top seal module, which results in considerable freedom as regards the drive concept. Pneumatic and electric drives can be adapted on the drive shaft. A mechanical connection with the main drive shaft of the packaging machine can also be realized. To fulfill various assembly conditions, the drive may be installed on either the left or the right side of the module – this is particularly beneficial in the case of multi-line systems.
The integrated pneumatic cylinder means that the sealing force is immediately available with the contact of the sealing tools. This PreLoaded concept allows for the process-safe sealing of pouches, also with high machine speeds.

Flexible in the drive selection
Configurable installation
Safe sealing at high cycle rates thanks to PreLoaded function

Top seal module TSM	30 kHz	35 kHz
Generator power [W]	1800	1200
Max. weld force at 6 bar [N]	750/1200	750/1200
Max. sealing length [mm]	207	135
Max. opening width [mm]	50/100	50/100
Drive configuration	Left hand/right hand	Left hand/right hand

HDM ProcessControl

The “High Precision Distance Measurement” function is a quality control which recognizes faulty pouch conditions in the sealing stations and enables suspect pouches to be rejected. The HDM sensor which is integrated in the TSM determines the distance of the sealing tools. The signal is evaluated directly on the ultrasonic generator that allows for exceptionally high evaluation speeds, which are particularly advantageous on high-speed top sealer sealing machines. The intelligent generator management can compensate for thermal influences, which means a constant quality control is guaranteed throughout the entire machine running time.

Recognizable faulty conditions

Double pouches
Folded pouches
Solid product in seal area
Missing pouches

Customer benefits

Reduction of faulty pouches in the actual yield (downstream)
Reduced effort in the quality control
Prevention of metal contact of the tools for a long service life

Advantages of ultrasonic sealing technology

Tight and strong sealing, even with seal contamination
Short start-up time, as no heating of the sealing tools required
Cold sealing tools protect the product during the filling
Integrated quality control
Suitable for wet cleaning due to protection class IP65/67

application engineering

Application examples

Wet pet food
Ready meals
Pickled cabbage / red cabbage
Drinks
Herbs and spices

Preview

Three stations in one: the new top seal module with COS

Reduce unnecessary packing machine stations by utilizing a compact solution which will help reach your sustainability targets. With the new cosmetic seal upgrade COS for the top seal module TSM, you will be able to create the hermetic and cosmetic seal of stand-up pouches in just one station in the future. Thanks to efficient ultrasonic technology, you can eliminate a cooling station while simultaneously reducing your energy consumption and waste automatically.

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

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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.

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.