High-purity silicon is the most important base material for the manufacture of microelectronic components such as ICs, microprocessors and memory chips. Schmitt pumps are used here already in the production of raw silicon. They are also used in etching and rinsing processes during the production of wafers from pulled monocrystalline silicon single crystals.

The sometimes aggressive fluids required in the subsequent microchip manufacturing process for metallisation, developing, etching and cleaning are also safely pumped, circulated and fed to treatment by Schmitt pumps.

The pumps must not cause any contamination of the process fluids. Absolute purity is essential for process stability.
Another application area in the semiconductor industry: Schmitt pumps are also used here to convey the cleaning fluid for thermal scrubbers, which clean exhaust gases generated during chip production.

Metallising, etching, stripping, cleaning and more. In printed circuit board production, our pumps convey fluids that can be highly aggressive and corrosive. Reliable, safe and always at the correct pressure.

Our pumps operate spray nozzles, circulation, surge and rinsing baths in the various wet-chemical and electrochemical production steps. They are also used for conveying and treating spent wastewater.

In surface finishing, a wide range of components, wires or sheets are provided with durable, usually metallic coatings using electrochemical, electroplating or electroless wet-chemical processes.
These coatings are used, for example, for corrosion and wear protection. They are also applied for visual and design reasons. In coating systems, the components pass through a sequence of immersion tanks containing various chemicals for cleaning, coating and rinsing. 

Various aggressive fluids are used in this process, which is why the filling, circulation and draining of the tanks can only be carried out with appropriately chemically resistant pumps.

This is where our centrifugal pumps fully demonstrate their strengths. They are resistant to the chemicals used and operate reliably. They also integrate seamlessly into our customers’ system architecture.

Exhaust gases contaminated with pollutants are generated in a wide range of industrial manufacturing and combustion processes. These exhaust gases must therefore be cleaned or the pollutants neutralised before the exhaust gases can be released into the environment. Our customers use gas scrubbers or wet separators for this purpose. They remove chemical and particulate contaminants from the exhaust gases using suitable liquids in the gas stream.

Acids or lyes are often used in this process. The collected, contaminated fluid is treated in wastewater treatment plants. A robust pump is required to ensure safe operation. This applies not only in terms of chemical resistance. The pump used must also reliably provide the pressure required in continuous operation to operate the spray heads. Our pumps deliver both in many exhaust gas cleaning systems.

In conventional lead-acid batteries and in the further developed gel, AGM and EFB batteries, sulphuric acid is usually used as the electrolyte. Liquid electrolytes are also required in the manufacture of lithium-ion cells, for example for electric mobility in cars and e-bikes or for mobile phones. The challenge here is that these aggressive fluids must be conveyed reliably and without contamination using resistant pumps.

A field that is certain to become increasingly important in the future: redox flow or flow batteries for storing large quantities of electrical energy. They are suitable, for example, for use in combination with wind turbines or solar parks. In these systems, the electrolyte fluids are stored in tanks and pumped through an electrochemical cell at a defined pressure and flow rate to generate electricity. With our chemically resistant thermoplastic pumps, these systems operate reliably and safely.

Modern data centres – particularly for AI applications – place the highest demands on the reliability and efficiency of their cooling systems. The waste heat generated must be dissipated continuously, precisely and with high operational reliability. Schmitt centrifugal pumps make an important contribution here: they handle the transfer of cooling media, heat transfer fluids and chemical additives in closed and open cooling systems.

The pumps do not come into direct contact with sensitive IT components; instead, they are used specifically in peripheral cooling and process circuits – for example in cooling water systems, recooling plants, heat exchangers, or for the dosing and circulation of additives for water treatment.

Wherever aggressive, corrosive or toxic liquids are handled in the chemical industry, Schmitt centrifugal pumps provide reliable and safe solutions. Typical applications include the transfer of acids and lyes between tanks and process systems, the feeding of reactors, and the circulation of process fluids in closed circuits.

Another key application area is the handling of chemicals in ancillary and auxiliary processes, for example in wastewater treatment, neutralisation or gas scrubbers. In these applications, fluids often have to be transported continuously and under demanding conditions. 

In air-conditioning, cooling and refrigeration technology, the reliable and continuous transfer of cooling and process fluids is essential. Schmitt centrifugal pumps are used in numerous peripheral applications where liquids are transported for heat dissipation, system stabilization or water treatment.

Typical application areas include cooling water circuits in industrial cooling systems, the circulation of water-glycol mixtures, and the operation of recooling plants, cooling towers and heat exchangers. The pumps also perform important tasks in water treatment, such as dosing biocides, corrosion inhibitors or other chemical additives to ensure stable operating conditions.

Schmitt pumps are also used in open systems, such as recirculation basins or collection tanks, as well as in auxiliary processes such as cleaning and disinfection. Their high chemical resistance to the media used and the ability to optimally adapt various materials to the specific requirements are crucial.

Wherever fluids are transported in the food and beverage industry for cleaning and sterilisation, we can offer our customers suitable solutions. This applies, for example, to systems for cleaning bottles or pipelines. Another area of application is the transport of hydrogen peroxide. This is used in aseptic filling systems for the sterilisation of PET bottles, plastic containers and typical multi-layer carton packaging.

Schmitt pumps are also suitable when food products in baked goods production need to be treated with brine. Particularly important here: our pumps have the necessary food approval, for example to spray pretzels with precisely dosed sodium hydroxide solution or brine.