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OPTIMA 2.0 Increased Efficiency Through Tailor-Made Mini Riser Solutions

Editor: Isabell Page

With OPTIMA 2.0, the new generation of mini risers from EXACTCAST, ASK Chemicals has developed a modular system with innovative components.

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A new generation of mini-risers should costs and increase efficiency and product quality at the same time.
A new generation of mini-risers should costs and increase efficiency and product quality at the same time.
(Source: gemeinfrei / Unsplash)

The expansion of the OPTIMA mini-riser family means a further increase in the efficiency of the EXACTCAST technology. "The new modular systems enable maximum flexibility and can be tailored precisely to individual requirements," explains Udo Skerdi, Business Line Manager Risers & Filters at ASK Chemicals. "The required amount of the casting material is reduced together with the effort involved in the preparation and post-processing." In addition, "foundries can work more economically, save costs and at the same time increase efficiency and product quality," says Skerdi.

All components can be combined flexibly into customized solutions. OPTIMA 2.0 allows, for example, the use of feeders in the smallest spaces and a wide variety of feeder volumes. The mini-risers can be manufactured as water glass, or as cold-box variants as needed.


The OPTIMA mini-riser solutions can be well arranged even on complicated casting geometries due to their small attachment area. The risers have a loose bushing with an accompanying mandrel; they achieve a precisely defined breaking edge and thereby reduce production costs. The virtually frictionless bushing and the integrated feeder cover prevent the detachment of riser particles during the compaction process.

Innovative Components

Innovations count among the modules of the new OPTIMA generation, such as exothermic or insulating feeder covers with a mandrel guide made of non-crumbling plastic. They also contribute to the avoidance of impurities in the mould and associated casting defects, and to an increase in the cycle times of moulding lines. Strengthened feeder covers with an integrated rib structure, which better withstand mould pressure, are additional new features. Another example of an OPTIMA innovation is either an exothermic, or insulating bushing that prevents the feeder neck from solidifying prematurely.

Easier Access to the Feeder Portfolio

The newest version of the geometry database from MAGMASOFT makes simulations with ASK Chemicals feeders easier for users. All of the company's feeders will be available from the release of the version in MAGMASOFT.

Feeder solutions differ greatly from one another, such as in their thermo-physical properties, their volumes and mixtures, as well as many more details. For foundries, it is important to correctly define the optimum feeder configuration already during casting development.

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