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at productronica
16 - 19.11.2021, Messe München
Hall A2, Stand 159

Highly modular hotmelt
potting platforms.

Hotmelt moulding
machines from cost-effective entry-level
to complex high-volume models

Highly modular hotmelt
potting platforms.

Hotmelt moulding
machines from cost-effective entry-level
to complex high-volume models

Protect your electronics against the most severe stresses even under extreme conditions

The world can be a harsh place for electronics. Extraordinary stresses such as high pressure or severe temperature fluctuations, humidity, radiation, dust and vibrations demand maximum protection for your sensitive electronics.

Hotmelt moulding aims to reliably protect against all of this – and is a speciality of WERNER WIRTH. Hotmelt moulding machines work at relatively low temperatures and with much lower injection pressure than normal plastic injection moulding. It protects sensitive components, allows thermoplastics to cure quickly and is relatively cost-effective. As the potting materials can be moulded into any shape, this component protection can either become a constructive element or perform a housing function.

Discover our wide range of ergonomic hotmelt moulding machines, which are ideal for potting cables, connectors, coils and sensors as well as entire electronic assemblies. All our potting platforms have a modular design so that they can be easily changed, added to or expanded depending on your needs. Which platform is best for your specific requirements?

TM 2200 – the cost-effective entry model

The cost-effective entry into hotmelt moulding: modular design, including the TM 1004 tank unit and the TM 1010 injection head as standard. The tool holder is suitable for common standard mould sizes with horizontal injection. The TM 2200 can be set up for a wide range of mould heights through its vertically moving cylinder. The standard height adjustment for the spray head allows different separation levels to be used.

The manual sliding table moves towards the operator – for easy and user-friendly loading of parts. Once the lower half of the mould has been retracted, the system is fully encapsulated again for a high level of safety. The pneumatically controlled cycle can be started with one hand. With a clamping force of up to 700 kg, the TM 2200 is the ideal solution for processing small and medium series.

TM 2300 – fully modular for almost any application

With its consistent modular design, the TM2300 potting station is the most flexible solution for hotmelt production – from the small series platform with tank unit to the double potting station fed by an extruder to the inline solution for large series production. All common standard tool concepts can be implemented with the tool holders available – even hot runner tools can be held. Depending on the process requirements, the cooling or temperature control that is required by the potting material used is carried out through the mould holder indirectly.

Single- or multi-point sprues can be implemented vertically or horizontally. The clamping force of 1400 kg can be increased by using different cylinder sizes or additional tool closing systems. A switchbox can be used to operate a second TM2300 on the same material supply – for maximum production capacity with just one operator.

TM 2500 – highly flexible with manual closing

The cost-effective standard version with tank unit, the TM1004 is the ideal entry into hotmelt processing – from the small series platform with tank unit to the extruder-supplied double potting station for medium series. The open design of the tool holder offers sufficient space for encapsulation of cable systems or partial encapsulation of foils or more complex assemblies. The vertical adjustment mechanism enables the machine to be set up to a wide range of mould heights, providing a highly variable mould mounting for the sprue in the separation level.

The pneumatically driven lower mould half comes towards the operator and provides maximum working safety with the combined mechanical and pneumatic mould closing with a clamping force of up to 1500 kg. The 3Q model is also available as an option with a transverse sliding table or as a twin version for double productivity with just one material supply for one operator.

TM 4500 – the classic with automation

Designed specifically for medium-sized production runs, the compact design supports efficient production of small to medium-sized encapsulation of inserts. The TM4500 features a three-part mould concept: a complete tool set consists of a mould upper part and two identical lower moulds. The sprue is applied horizontally from behind in the mould separation level with one or two injection valves.

The lower mould halves alternate on an automatic sliding table under the upper mould. The process takes place behind a Plexiglas guard, separated from the operator. Tool closing is pneumatic and offers maximum working safety through convenient two-hand operation, up to a clamping force of 1400 kg. Using an optional switchbox, two TM4500 platforms can be operated with one material supply and the highest possible production capacity can be achieved with only one operator for optimum cost-effectiveness.

TM 6500 – powerful for large-scale production

Two independently controllable tool holders are the hallmark of this hotmelt potting platform, which has been specially designed for the encapsulation of inserts in large-scale production – and is uniquely versatile. The ergonomic design and flexible configurations guarantee efficient production of two identical or even different encapsulations on inserts. The available tool dimensions offer enough space even for relatively large cavities or increased efficiency through multiple cavities, depending on the size of the injection unit.

The sprue is applied horizontally from behind in the mould separation level with one or multiple injection valves. The lower mould halves move towards the operator and move under the upper mould on an automatic sliding table. The process takes place behind a Plexiglas guard, separated from the operator. Tool closing is pneumatic or hydraulic and offers maximum working safety through convenient two-hand operation, up to a clamping force of 3000 kg.

TM 6800 – the master for large-scale production

Specially designed for thermoplastic encapsulation of inserts in large-scale production, the ergonomic construction and flexible configuration options enable efficient production of a wide variety of insert encapsulations. The TM6800 is designed for processing thermoplastic materials in a temperature range of up to 250°C at max. 200 bar. The machine features maximum possible flexibility for tool holding. It is possible to have a horizontal sliding table for the lower moulds or a drawer version with the lower mould moving towards the operator – or a loading robot.

The available tool dimensions offer enough space even for relatively large cavities or increased efficiency through multiple cavities, depending on the size of the injection unit. The sprue is applied horizontally from behind in the mould separation level with one or multiple injection valves, or without a sprue vertically into the upper mould. The injection moulding process takes place behind a Plexiglas guard, separated from the operator. Tool closing is pneumatic and offers maximum working safety through convenient two-hand operation, up to a clamping force of 60 KN.

All platforms are compatible with different melting systems

Tank technology:

The entry-level solution for hotmelt processing technology, which processes materials in granular form. The TM1000 series can be used on all our processing platforms – depending on the type of unit used, with various features such as level sensor, weekly timer and temperature setback.

Extrusion technology:

Convenient and reliable: Designed for processing a wide range of materials in granular form – and even for higher viscosity and coloured potting or injection moulding materials. The TM1500 series extruders can be integrated into all of our platforms and feature helpful functions such as a touch panel, inverter-controlled drive, a melting rate that can be adjusted to the material requirements, and much more.

Bag melters:

Processing high-temperature resistant, reactive potting polyamides from the PAR product group requires the TM1402 bag melter, which can be used on any of our potting systems. The material is melted with a controlled heating plate in the absence of air and transported into the mould.

Hotmelt moulding:
The process

Ready for encapsulation of your electronic components – the processing machines for hotmelt moulding from WERNER WIRTH GmbH are modularly designed so that they can be easily modified, extended or expanded – depending on your needs.

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Component protection even in extreme conditions
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Machines &
Systems
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Thermoplastics /
Potting Materials

We offer solutions for individual challenges – from a single source

Plan your new, customised hotmelt potting platform with us and discover the many possibilities. Be it a single workstation for small series or a large-series module that fits seamlessly into your production line: We are used to thinking about the big picture in a holistic way, taking into account even the smallest detail, and squeezing a few minutes out of somewhere – for even more efficient production runs.

Building on almost 50 years of experience, our expertise in the field of electronics is multi-disciplinary know-how, individual planning, comprehensive advice – and, if you wish, we can offer all of this from one source. In other words, in addition to the processing machines, melting systems, cooling units and temperature control units, we can also provide perfectly suitable materials, design and build highly complex moulds ourselves, and supply the valve technology and all the accessories. you profit from our extensive know-how in every case.

And if we don’t have something, we can make it to customer specifications. By the way, we are also happy to manufacture any number of pieces for you.

Industry competence from A to Z

WERNER WIRTH is the only company of its kind, one that specialises in both connection systems and component protection, equally and completely. This is tradition for us – and synergy for you. Multidisciplinary experience you can rely on: for decades we have provided practical, durably protected contacts on all scales in a variety of industries – from the automotive industry to point-changing systems on railways. We would be delighted to discuss the challenges we have already tackled in your industry in a personal meeting.

Automotive

Electromobility

Electrical and electronics

Traffic engineering

Aviation

Energy systems

Medical technology

System and machine construction

Hotmelt potting platforms by WERNER WIRTH – the perfect solution for every challenge

FROM ENTRY-LEVEL TO HIGH-PERFORMANCE LARGE-SCALE PRODUCTION MODELS

INDIVIDUAL CONFIGURATION

MAXIMUM OCCUPATIONAL SAFETY

MODULAR & ADAPTABLE,
CAN BE EXTENDED AT ANY TIME

SOUND ADVICE INCLUDED

Test live: hands-on technology.
Arrange your personal appointment now.

Would you like to learn about the many options and possibilities offered by our hotmelt moulding machines in person – and test them live? Our Technology Days, which are organised specifically for you and your team, offer you the opportunity to discover all of our potting platforms and how flexible they are, as well as various tank units, extruders and bag melters.

Tell us about your specific requirements, experience the perfect ergonomics and test the intuitive user-friendliness of our system technology. When would be the best time for a meeting?

Your contact partner
Bernd Conrad

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