Lüber GmbH

A Modular System. Lüber GmbH core sand preparation plants have been developed in accordance with modular design principles and consist of individual components serving to prepare core sands. Our plant components are available both as individual modules – such as individual mixers with their own controls – and as an integral part of automatic and compact installations. Lüber core sand preparation plants can be employed in just about any of the organic and inorganic core making processes used in core making. Our installations include different types of batch mixers, i.e. our universal batch mixer («UCM») and our intensive core sand mixer («KIM», bowl mixer). Both types of mixers will enable you to process batches between 25 and 500 kilograms.
 
Modules. Lüber core sand preparation plants mainly consist of the following modules: sand day silos; batch sifter for heating, cooling and dedusting the sand; sand dosing system; day storage for liquid components included; storage containers and dosing devices for powder and liquid additives, universal batch mixers («UCM»); or intensive core sand mixers («KIM»); a variety of core sand distribution systems; control cabinet with programmable logic controller.

From small Batches to Mass Production. Our long years of experience in the foundry industry have led to us developing core shooters which easily fulfil the high demands of the foundry industry as far as robust machine construction is concerned. Lüber GmbH core shooters can be used in production processes involving all common cold- and hot-curing methods. Our core shooters are of modular build and can therefore be specifically configured in accordance with customer requirements.
 
Specific Features of Lüber Core Shooters. Suitable for all core making processes, depending on requirements, Lüber core shooters also enable you to run up to six-cavity core boxes thanks to their modular build. Our machines are built in accordance with customer-specific core boxes, with robust and uniform guide systems and core boxrelated strokes which result in short cycle times. Our core shooters are designed ergonomically with a view to production, maintenance and cleaning. We place the highest priority on operator safety, and all elements moving vertically, such us shooting unit, gassing unit, top part of core box and pressing unit, are locked into position before staff obtains access to the machinery. Lüber core shooters don’t require a base.

Gas Generators for all Production Process Types. Lüber gas generators can be used with all common gas curing core making processes and are individually adapted to the relevant process. You differentiate between the organic and the inorganic process. With the organic process, the liquid medium is stored in a storage container fitted to the side for this purpose. The medium is heated and changes its aggregate state from liquid to gaseous. You can fill the storage container both manually and automatically. We also offer devices for curing with hot air via the inorganic process. There is also an option to integrate several processes into a so-called universal gas generator. The Lüber GmbH’s compact laboratory gas generator completes our gas generation product range. (See «Testing – Compact Laboratory Devices» flyer)
 
 
Economy and Efficiency. Perfect coordination of all our gas generator components and the precise control they offer make it possible to achieve highest, reproducible dosing precision. Maximum performance due to high-end evaporators, simple operation and their high safety standards render Lüber gas generators highly efficient. By combing gas generators with our operating data logging facility, all relevant data can also be logged, visually recorded and analysed for quality assurance purposes. (See «Logging – Qualified Operating Data» flyer)