Efficient solutions for vacuum, flushing and silo vehicles from CVS engineering

Vacuum pumps and compressors for sewer cleaning and sludge extraction

These technologies ensure maximum suction power and durability under extreme conditions – such as during sewer cleaning and sludge extraction

Rheinfelden, March 2026 – CVS engineering GmbH, based in Rheinfelden, offers sustainable solutions for suction, flushing and silo vehicles: These include vacuum pumps from the VacuStar series for suction and flushing vehicles (‘sewage handling’) and oil-free screw compressors from the SKL series (‘dry bulk’). “With Dry Bulk, we have efficient solutions in our portfolio for the rapid and residue-free unloading of silo vehicles for bulk goods such as cement, grain or plastic pellets,” explains Fabio Geiger, Area Sales and Marketing Manager at CVS engineering.

High suction capacity and durability in harsh conditions

These technologies ensure maximum suction capacity and durability in extreme conditions – such as sewer cleaning and sludge extraction. The range includes oil-free screw compressors (SKL 700, 1100, 1500), rotary vane vacuum pumps (VacuStar L / W) and liquid ring pumps (VacuStar WR) – supplemented by drive components such as hydraulic adaptors or drive shaft couplings and other accessories.

Sewer maintenance, efficient unloading of large volumes of material

These solutions are in demand among fleet operators, vehicle manufacturers and engineers in the road haulage, transport, distribution and logistics sectors. The suction and flushing vehicles are used in the wastewater sector, in industrial cleaning (grease separators in the catering industry), the construction industry (pit emptying), agriculture and in environmental technology for the removal of pollutants. “Specifically, they are indispensable for sewer maintenance, emergency cleaning in the event of blockages, the transport of hazardous liquid waste, and the efficient unloading of large quantities of material in the building materials and food industries,” explains Fabio Geiger.

A growing need for efficient waste management and low-emission transport

"Particularly against the backdrop of urbanisation and increasing environmental regulations driven by decarbonisation and noise protection, there is currently a growing need for efficient waste management infrastructure and low-emission transport solutions," emphasises Fabio Geiger.

Clean conveying air is essential for the food and chemical industries

It is not least these challenges that make CVS engineering’s technologies the ideal solution: the oil-free SKL technologies ensure clean conveying air – a fundamental requirement of the food and chemical industries. Further benefits of the ‘Dry Bulk’ compressors include their low weight, low discharge temperatures and wide speed range, ensuring energy-efficient, resource-saving operation. The VacuStar series for ‘sewage handling’ offers users high protection against wear and corrosion thanks to optional plasma nitriding and ceramic coating. “Innovative cell aeration systems also enable continuous operation at high vacuum without overheating,” adds Fabio Geiger.

The oil-free screw compressors of the SKL LS series have been developed for mobile use on silo trucks as well as for stationary unloading systems

Complemented by first-class service

With this package, the Rheinfelden-based company serves OEMs (Original Equipment Manufacturers) that install components ex-works, as well as end customers such as haulage firms and local authorities, who place great importance on weight, reliability and low lifecycle costs, as well as first-class service.

About CVS engineering GmbH

CVS engineering GmbH develops and manufactures high-quality compressors and vacuum pumps for mobile applications such as suction, silo, and tanker vehicles, as well as for public transport (buses and trains). The company also offers plug-and-play compressor units for stationary unloading of silo vehicles.

At its German site, CVS uses state-of-the-art manufacturing technologies, automated machining centers, and precise measurement technology to enable flexible, fast, and high-quality production.

The products are sold worldwide directly and through qualified distributors. CVS is certified according to DIN ISO 9001 and DIN EN 15085 2 and is recognized by various OEMs in the railway sector.

With in-depth expertise and a high degree of manufacturing flexibility, CVS delivers powerful, tailor-made compressor and vacuum solutions. The company focuses on innovation, the highest quality standards, and partnership-based cooperation to deliver reliable, efficient systems.