Sealing plastic housings for heat pumps effectively
Apply 2-component polyurethane foam with the dynamicLine
Depending on their location, heat pumps are exposed to special environmental conditions - from strong sunlight, rain and moisture to dust and dirt. This makes it all the more important to provide the best possible protection for the electronics inside.
To achieve this, the plastic housings of the heat pumps are sealed with a flexible polyurethane foam. It is applied using the dynamic mixing system dynamicLine. It was specially developed for foam gasketing and processes polymer reaction materials such as the two-component PU foam precisely and with a high level of quality.
A linear robot is used to automatically apply the foam bead directly to the plastic housing, which is supplied via an application table. In automatic mode, the dynamicLine can be operated quickly and easily using a button. Various dispensing and traversing programmes can be saved and flexibly switched between different components. Different dispensing capacities with different sealing widths or heights can also be selected.
Material feeding is carried out via pressure tanks. Gear metering pumps ensure reliable delivery of the material. The mixing head has an integrated high-pressure water pump and can be cleaned without detergent. The machine is enclosed by a safety fence and there is a safety door for servicing the mixing head. A light grid on the application table ensures that users are not in the danger zone.
The applied foam gasket hardens at room temperature. It adheres permanently and seals the inside of the heat pumps perfectly.
Consistent and precise sealing with PU foam gaskets
With the dynamicLine, DOPAG offers a fully automated solution for applying polyurethane foam gaskets. The system ensures reliable and high-quality sealing of plastic housings – for example in heat pump production – and helps reduce material waste and costs.
Advantages of automated foam gasketing with the dynamicLine
- PU gaskets are applied automatically and captively and adhere without additional adhesive tape.
- The start and end points of the foam bead merge into one another, no disadvantageous coupling points
- No open joints or cuts
- Width, height and hardness of the gasket can be adjusted
- Less chance of errors compared to manual application
- High cost-effectiveness: The costs for the gasket are of a higher quality and significantly lower compared to manually inserted seals.
- Sustainable: Compared to punched or cut gaskets, there is virtually no waste.
Learn more about automated PU foam applications with the dynamicLine → visit the product page now
- One contact for the entire system solution
- All applications from one provider
- Implementation of specific requirements and automation
- Competent support from DOPAG experts
- A dedicated technical centre for testing and customer training
- Close collaboration with material manufacturers
- Decades of experience in metering and mixing technology
- Global distribution and service in over 40 countries
Your contact
Reference projects
All DOPAG articles at a glance:
-
By switching to DOPAG metering and mixing technology, our customer benefits now from an extremely high precision and cost savings.
-
The dynamicLine applies PU foam gaskets to heat pump housings - highly precisely and automatically. This provides optimum protection against environmental influences such as dust, dirt and moisture.
-
The eldomix metering and mixing system offers an efficient solution for the automated potting of electronic components.
-
We ensure that your dispensing system runs reliably - with our DOPAG services. These range from maintenance and repairs to spare parts ordering and online support.
-
Bischof+Klein uses the eldomix to bond packaging for the food industry. We were on site.
-
Large quantities of adhesive are required in the manufacture of rotor blades. This is achieved with specially developed metering and mixing systems.
-
For the secure bonding of paintbrushes we have customised the metering and mixing system economix.
-
Precision is crucial when it comes to planning. Which factors are particularly important and how can common design flaws be avoided?
-
The vectomix TC metering and mixing system from DOPAG processes thermally conductive materials precisely and cleanly. This application shows the processing of Wacker Semicosil 9672.
-
Higher quantities in less time - For bonding housings for LED luminaires, DOPAG has configured an automated metering system that meets precisely these requirements.
-
Technology, material and component - these three factors must be optimally coordinated for the automated production of PU foam gaskets. DOPAG and Stassen Industries GmbH advise customers together.
-
SAE Schaltanlagenbau Erfurt relies on the dynamicLine from DOPAG for the individual production of control cabinets. We have visited them on site.
-
We configured an automated lubricant dispensing system that optimises production processes in the automotive industry.
-
The eldomix dispensing system fills an impregnation bath for the production of hydrogen tanks using the filament winding process.
-
Particularly strict conditions apply to production in the medical technology and food industries. A special configuration from DOPAG enables the use of the dispensing system in the clean room.
-
When is it beneficial to switch from manual dispensing to a metering and mixing machine? - We support you to identify all relevant influencing variables.
-
Learn all about Form-In-Place-Foam Gasketing (FIPFG) and how it’s already begun revolutionizing engineering industries and applications around the world.
-
PU gaskets and potting compounds protect the sensitive electronics in a wallbox against dust, dirt and moisture. We offer solutions for both applications.
-
We offer dispensing systems for a reliable application of adhesives and sealants in the manufacturing of liquefied natural gas (LNG) transport tanks.
-
The contactless application of lubricants meets all conditions for complex, automated production processes and is now standard in many industries. We present the options.
-
With the dynamicLine, DOPAG provides an automated and clean application of PU foam gaskets on recyclable HEPA filters from the Swiss manufacturer Tecnofil.
-
The Swiss start-up dhp technology constructed the world’s first retractable solar roof. The individual modules are manufactured with dispensing technology from DOPAG.
-
With the dynamicLine, DOPAG offers a system for both applications and thus enables an efficient, automated series production.
-
DOPAG offers special dispensing stations for the manual application of lubricants. With the help of an adapter, components such as O-rings and other seals can be greased or oiled manually.
-
Self-adhesive labels and stickers are produced with silicone coating via coating systems. We provide the metering system to ensure material feed.
-
DOPAG provided a metering and mixing system for potting electronics boards for e-bike battery packs.
-
With the dynamicLine, DOPAG offers an efficient solution for series production of PU foam gaskets in all industries.
-
The metering and mixing system volumix provides a smart solution for filling cartridges with adhesives and sealants in aircraft production.
-
For the production of plastic filter elements, DOPAG configured and automated metering and mixing system.
-
DOPAG provides an individual solution for the application of one-component sealant in the production of cardan shafts for special vehicles.
-
With the dynamicLine, DOPAG offers an efficient solution for series production of PU foam gaskets in all industries.
-
DOPAG develops a metering and mixing system for adhesive bonding of automotive components to ensure uniform standards worldwide.
-
DOPAG offers furniture manufacturers flexible and reliable solutions for the automated application of lubricants.
-
For the automated application of PU gaskets to control cabinet doors, DOPAG provides a dynamic mixing system in combination with a linear robot and shuttle sliding tables.
-
With the dispensing system coredis, the honeycomb core of sandwich panels, which are used for the interior of aircraft, could be filled homogeneously.
-
DOPAG successfully supported a truck manufacturer with a dispensing system for the manual application of a single-component sealant.
-
Valves for the spray application of grease and oil. Contactless application of lubricants in areas difficult to access.
-
Precise potting of filters and filter elements is necessary for high safety and purity. DOPAG supported a global manufacturer with individually configured metering and mixing systems.
-
With the dynamicLine from DOPAG, customers will be able to implement gasketing and bonding applications with just one system.
-
The requirements for the type of lubricant dispensing vary and always depend on the application being carried out. Learn here more about the four key factors for successful system design!
-
The membrane dispensing valve ensures a clean application and a high reliability in automated dosing processes.
-
Using thermal gap fillers leads to more advanced metering technology requirements - learn more about the solutions from DOPAG.
-
Compared to manually inserted seals, automatically applied PU gaskets offer many advantages.
-
DOPAG presents the shot valve in a new video: It is perfectly suited for contactless material application in highly automated processes.
-
The control cabinet manufacturer Fandis applies foam gaskets on various components. DOPAG has designed a FIPFG system for this application.
-
DOPAG has developed two special lubricant application systems for the production of ball screws in automotive industry.
-
The eldomix dispensing system fills material reservoirs of 3D printers with liquid printing technology.
-
DOPAG provides automated potting solutions for variuos applications - two practical examples!
-
CTO Daniel Geier talks in the interview about challenges in automated dispensing technology.
-
DOPAG presents a production cell, that could be used for greasing and oiling applications. Disocver also valves for contactless material application.
-
Metering and mixing systems are necessary in various applications in rotor blade production. DOPAG presents its solutions.
-
The household appliance manufacturer Amica uses an invidual glue dosing system from DOPAG for the production of oven doors.
-
With dynamicLine, the metering technology manufacturer DOPAG presents a new dynamic mixing system for a wide range of applications.
-
DOPAG developed a special dosing system for the automated lubrication of gas springs.
-
Individual grease and adhesive dispensing systems from DOPAG guarantee highest quality electric parking brakes.
