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Dopag (Uk) Ltd

Dopag (Uk) Ltd



DOPAG is one of the leading manufacturers of metering and mixing technology. In numerous industries, our systems and components are used for processing and application of multi-component polymers or 1-component media such as adhesives, greases and oils.

DOPAG is a member of the HILGER & KERN GROUP that has been a reliable supplier and development/service partner for industrial enterprises across various market segments for more than 90 years. The company employs about 300 people and is represented in more than 30 countries by its subsidiaries and distributors.


Product news

  • Innovative LSR-pump technology from DOPAG

    The world market of liquid silicone rubber (LSR) is continuously increasing. Actual studies forecast a growth about eight percent p.a. within the next years, especially for the automotive and medical sector. At once DOPAG extends its worldwide activities at this fast-growing industry. Currently the company continues its efforts to further strengthen their position on LSR-pumps in the USA by various activities.

    DOPAG supports House-Event at ENGEL USA
    Recently, DOPAG joined efforts with the companies ENGEL, MR Mould and Momentive. The company presented a LSR-Moulding application at the ENGEL in-house show in York, PA. More than 100 customers took part and got to know the wide range of LSR applications as well as the solutions for the processing of LSR provided by DOPAG.
    DOPAG exhibits at LSR 2017 Conference
    Further to this, DOPAG attended one of the main events in the US within the LSR-business – the LSR 2017 Conference in Anaheim, California. International industry leaders and experts discussed technological developments and explored new commercial uses for LSR in various markets. Several companies such as Arburg, ENGEL, KraussMaffei, Dow Corning, ShinEtsu, MR Mould and Momentive attended the event. More than 150 attendees had the possibilities to receive the latest news about the new electrical LSR-pump from DOPAG. The new SWIPSYNC technology of the DOPAG pump enables a synchronous changeover of the servo-electrically driven piston pumps and thus precise compliance with the mixing ratio. Based on robust technology, DOPAG LSR-pumps ensure a smooth and reliable production with even shorter setup times.

    More than 25 years of experience in LSR
    As a leading supplier of LSR-pumps with more than 25 years of experience, DOPAG installed more than 800 LSR-machines worldwide so far. This success is based on a long-term experience in the processing of LSR and on a close cooperation with customers and project partners.


  • DOPAG China captures the photovoltaic market

    DOPAG China captures a new business segment and presented efficient metering, mixing and dispensing technology for the photovoltaic market at the SNEC PV Power Expo 2017 trade fair in Shanghai. The visitors could experience the processing of single-component media with the dispensing system vectodis live at the DOPAG booth.

    China is one of the countries that have taken the lead in climate protection and the expansion of renewable energies. Since several years DOPAG metering and mixing systems proves their competence in the production of photovoltaic machines. By participating in the SNEC PV Power Expo, DOPAG China is further expanding these activities in the Asian market.

    The SNEC PV Power Expo is an international exhibition and conference and one of the biggest events for the photovoltaic industry in Asia. A numerous national and international companies showed their latest trends and solutions for the photovoltaic sector. The exhibition counted more than 1.500 exhibitors and about 220.000 visitors in three days.


  • Oil dispensing in perfection

    Oil dispensing in perfection: DOPAG has developed the lubriLine product family for metering applications in the automotive industry. It meets all specific requirements for highly automated greasing and oiling.

    High repetition rates, short cycles and narrowly defined tolerances for the applied quantities determine the metering processes in the automotive industry. Thus, a precise and reliable metering is indispensable. Therefore, DOPAG has developed the lubriLine especially for the application of lubricants in the automotive industry.

    Modular structured drum pumps
    The next generation drum pumps P80 and P200 form the basis of the lubriLine system concept. DOPAG has designed them especially for grease applications by adopting double-acting ball valve pumps or chop check piston pumps. They deliver greases and oils up to NLGI class 3 from the original containers without any problems. Furthermore, the installed follower plate has the function to fill the pump continuously and neatly with the material to be delivered by applying an optimum surface pressure. The sealing of the plate towards the atmosphere prevents the intake of air and the formation of bubbles in the grease. The elevators are available in two basic configurations, P80 and P200. The modular structure of the drum pumps enables an individual configuration and optimum layout for each application.

    The right valve for each application
    The basic configuration of the metering system, consisting of pump, material pressure regulator and dispensing valve or metering valve, can be complemented with other components such as a control unit or a volume counter. Furthermore, the DOPAG lubriLine offers the most suitable valve for each application. DOPAG needle metering valves or chamber metering valves provide a reliable solution for contact greasing in case of applications with short cycle times and the need of an exactly reproducible quantity. The DOPAG high-speed valve allows for a contactless material application over a distance of up to 120mm. It can also be used efficiently for hard-to-reach places.

    For the contactless greasing, DOPAG has complemented the product family with a shot valve as well as a spray valve. Within a very short time, the shot valve can apply an extremely high number of shots – up to 200 cycles per second – using the least amount of material possible. Thanks to various extensions and attachments, the two new valve types can cover various application angles without any problem – they are best suited for the greasing of hard-to-reach spaces such as components with undercuts.

    Hard-to-reach places, various inclination angles or high shot rates – oil dispensing is an easy task with the components of the DOPAG lubriLine. Due to the high-precision and reproducible metering application, the DOPAG metering systems meet the high manufacturing standards of the automotive industry.


  • DOPAG becomes involved in the Smart Production network

    Together with more than 40 other companies and partners, DOPAG will step up its commitment on the subject "Industry 4.0" in the Rhine-Neckar metropole region. To enhance the support, the companies joined together in the Smart Production network. This serves as a technology platform for growth and innovation in the field of "Industry 4.0".

    For DOPAG – one of the three brands of the HILGER & KERN GROUP – the subject "Industry 4.0" is playing a crucial role. Also, metering processes in the industrial production will become more and more automated. This applies in particular to industries such as the automobile or the aerospace industry. Due to the continuously rising demand for innovative metering and mixing technology, these industries rate among the key markets for DOPAG.

    Furthermore, the subject of qualified employees shall be of special importance within the network in the future. A key partner of the network will be the "Duale Hochschule Baden-Württemberg Mannheim (DHBW)". For many years now, DOPAG has cooperated with this institution in the field of education. The network will now bring both partners even closer together.

    Targets of the network
    To establish the Rhine-Neckar metropole region as a "Hot Spot" for the implementation of "Industry 4.0" – this is the target of the network. The network supports the local (production) companies in the networking with each other and academic institutions, thus boosting their innovation capabilities. Companies and universities will implement application-oriented as well as lighthouse projects. Another objective of the network is to attract qualified employees and researchers and retain them in the region, to secure existing work places and create new ones. Furthermore, the network sees itself as a promoter for company start-ups as well as research facilities/teams at the location.

    For further information, please visit the homepage of the Smart Production network: www.smartproduction.de.


  • DOPAG is growing in Eastern Europe

    DOPAG is continuing its international growth strategy and is expanding its market activities. This month new sales partners have been won in Eastern Europe. Thanks to the new partnerships DOPAG will be able to provide customers from the Baltic Sea to the Caspian Sea with even more intensive and faster service. The new distributors are responsible for sales and service in Estonia, Latvia, Lithuania, Albania, Bulgaria, Romania, Kazakhstan, Uzbekistan and Turkmenistan.

    Together with the new distributors DOPAG will open up further sales markets. “We will attain a greater market penetration and ensure future growth in Eastern Europe," says Steffen Knaus, CEO of HILGER & KERN GROUP.

    With the new partners DOPAG relies on experienced companies that have comprehensive knowledge in the field of metering and mixing technology. The employees are practiced within all important industries in Eastern Europe. With this knowledge DOPAG will further strengthen its presence in important key sectors such as the automotive industry, aerospace and electronics.

    All global DOPAG subsidiaries and sales partner are available at www.dopag.com/contacts.


  • HILGER & KERN GROUP from Mannheim celebrates its 90th anniversary and sets its course for the future

    Keeping up the traditions while actively designing the future – The HILGER & KERN GROUP has now been a renowned supplier, it is a development and service partner for industrial enterprises across various market segments for 90 years and employs more than 300 people around the globe. With its two business segments "Metering and Mixing Technology" as well as "Industrial Technology", the company has been a reliable partner for middle-sized companies as well as leading global players for many decades.
    During the past few years, the company has significantly evolved and set its course for the future. As part of this evolution, the activities of the Mannheim-based company, which was founded in 1927, were pooled under the HILGER & KERN GROUP. This includes the brands DOPAG and METER MIX in the field of metering and mixing technology as well as Hilger u. Kern Industrial Technology. Today all three brands present themselves with a completely redesigned brand presence, new homepages, revamped brochures and trade fair presentations.

    "Our goal is to further strengthen these three brands and place ourselves in an optimal position for the years to come", says CEO Steffen Knaus. "This is true in particular on an international scale since we definitely want to push global expansion of our brands. A clear brand image will naturally help us achieve this." Through new subsidiaries and distributors, the company is currently expanding its sales activities. At present, the company is represented in more than 30 countries.


  • DOPAG presents new LSR pump technology at Fakuma trade fair 2017

    Products from liquid silicone rubber (LSR) are being used in different industries: from automotive production to household appliances and medical technology. The highest degree of safety and maximum reliability are crucial factors - not only when using silicone products but in the production of silicone products. This was a decisive factor for DOPAG when developing the new LSR pump silcomix.
    Live application at Fakuma trade fair 2017
    DOPAG will introduce the innovative LSR technology for the first time at the Fakuma trade fair 2017, the leading international trade fair for plastics processing in Friedrichshafen, Germany. From 17 to 21 October, the new silcomix LSR-pump will be on display at the DOPAG booth. The application is realized by DOPAG together with the injection molding machine manufacturer Wittmann Battenfeld as well as the material manufacturer Wacker Chemie and the mold manufacturer EMDE. Visitors could view the processing of LSR materials with the new LSR pump live in an application. DOPAG experts are available for questions and advice. Another live production of LSR products with the new silcomix can also be visited at the booth of the injection molding machine manufacturer KraussMaffei. They show how reliable the DOPAG LSR pump operates in the production chain.

    The new silcomix type PE200/20 offers reliable production in all areas thanks to a wide range of applications. The silcomix processes virtually all of the LSR materials available on the market – whether they are of extremely low, medium or high viscosity - continuously and with high precision. The silcomix LSR-pump comes equipped with a new mixing system as well as innovative SWIPSYNC technology. This way, the liquid plastic may be delivered in an optimum manner in order to obtain high-quality end products.

    The newly developed mixing system allows the user simple, intuitive, and fast handling with extended functions thanks to its compact design. An integrated 'Snuff-Back' function closes the valve opposite to the flow direction. The outflow rate is thus carefully controlled. In addition, the temperature of the new mixing unit may continuously be controlled while tool less maintenance intervals offer increased comfort. Thanks to the modular structure, the mixing unit may be accurately adapted to many different applications.

    The precise compliance with the mixing ratio of A-component and B-component is utilised by the new SWIPSYNC technology. Here, the servo-electrical drives allow for the synchronous changeover between the piston metering pumps. This is done independently of the current position of the related pump piston and prevents the mixing ratio from shifting due to different changeover positions. The volume flows are automatically adjusted while the drums are drained evenly; material residues in the drum lie below one percent. At the same time, a special control of the servo drives significantly reduces the drop of the pressure and allows the volume to flow while also cutting down on the time required. Within the predefined tolerances, the mixing ratio remains constant during the injection molding process - no matter whether small or larger shot quantities are discharged.

    Further outstanding features of the new silcomix: The extremely compact structure ensures a minimum footprint of less than 14 square feet. A drum roll-in device and preinstalled process interfaces to the automatic injection molding machine offer high user friendliness and ease of operation. In addition, automatic de-aeration functions for follower plates and pumps as well as step-by-step instructions on the touch display enable significantly reduced setup times.

    DOPAG has been successfully operating in the key segment LSR for more than 25 years. With more than 800 systems sold, DOPAG belongs to the worldwide leading providers of high-quality technology for the production of LSR products. The success is based on a long-term partnership with renowned companies and project partners from a wide range of global industries. With the new silcomix PE 200/20, DOPAG is successfully expanding its position in the fast-growing LSR market and offers its customers worldwide the best conditions for ensuring their business success.


  • DOPAG reveals new dosing technology for gasketing applications

    DynamicLine is a new dosing system introduced this year by DOPAG as a solution to all formed-in-place foam gasket (FIPFG) applications. The automated dosing and mixing unit is not limited to gasketing applications only however, it can be used equally well in any bonding and potting process based on dynamic mixing. Fakuma 2018 in Friedrichshafen marks the first time DOPAG presents this novel product line in Germany. The basis of dynamicLine is a newly developed mixing head. It will be displayed at the manufacturer’s exhibition stand, ready for customers to discover the variety of its possible applications, which will be demonstrated on sample components.
    The response from our customers has been steadily positive and the demand very high. „One could not wish for a better start for a product innovation, really“, says Daniel Geier, Chief Technology Officer at DOPAG. „The high customer interest we have seen so far shows us we have assessed the market demand in the field of dynamic mixing technology correctly.“ High volume of enquiries from international market leaders from various sectors, such as the electronics and lighting industries, the automotive industry, control cabinet construction and packaging material manufacturing further confirm Mr Geier’s Statement.


  • DOPAG increases its LSR activity on the US market

    The market for injection molding processed liquid silicone rubber (LSR) products is experiencing a long-term steady growth in the US. In line with this trend, DOPAG has been expanding its LSR activities in the region. The company’s portfolio of metering and mixing technology offers many intelligent and reliable solutions for the processing of LSR in injection molding applications.
    This month DOPAG will be participating in one of America’s main LSR events, the LSR 2018 Conference in Anaheim, California. Around 150 industry leaders and experts from around the world take this opportunity to discuss most recent technology developments here and explore new commercial uses of LSR in various markets. DOPAG’s contribution this year will be a newly upgraded LSR pump silcomix, which all the Conference attendees will have a chance to explore closely. The silcomix now prides itself with a newly developed, compact mixing unit, which allows users a very simple, intuitive and fast handling. An integrated 'Snuff-Back' function provides perfect control of the outflow rate as it closes off the valve at the mixer outlet against the direction of the flow, thus not generating any additional pressure build-up in the injection moulding system. The modular structure gives the unit a truly versatile use, since it can be very accurately adjusted according to the parameters of various applications.
    As a leading supplier of LSR pumps with over 25 years of experience, DOPAG has already installed more than 800 LSR-machines all over the world. This success is based not only on a long-term experience with LSR processing but also on an approach that values close cooperation with customers and project partners highly.