HeidelbergCement AG cement works in Leimen


New components for existing systems

Project overview
Customer: HeidelbergCement AG, Leimen works
Sector: Cement industry
Application: Sifter
Solution: Retrofit Service to modernize a drive
Benefits: Replacing the existing gear unit restored and improved availability

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Modernization thanks to our Retrofit Service

Work was completed quickly and in close partnership


HeidelbergCement AG logo

With an annual production volume of almost 180 million metric tons, HeidelbergCement AG is one of the world's largest cement manufacturers . The building material company's products include cement, aggregates, concrete and asphalt .

Leimen cement works – one of its ten production sites around Germany – is located in the immediate vicinity of the headquarters in Heidelberg. Since its foundation in 1896, this plant has undergone continuous further development.

Project description

Gear unit in the vertical sifter system at HeidelbergCement AG's Leimen cement works

A whole new system is sometimes unnecessary. Modernizing the existing one is often sufficient, performing a retrofit rather than purchasing a new system. That was the case at Leimen cement works, where a third-party gear unit in the vertical sifter system was replaced in its entirety .

We assisted the cement manufacturer during all stages of the conversion process. Following consultation to clarify the technical requirements, the team designed a new drive and compiled a quotation for the customized solution. An X series industrial gear unit was selected to replace the existing bevel-helical gear unit. It was fitted with a flange at the output end to connect it to the output cone. The existing coupling was also overhauled.

Gear unit at the HeidelbergCement AG works

During the retrofit, the building material company benefited in particular from the short delivery time , all-round support and attractive full-service package . In this case, the retrofit cost less than purchasing a new system.

When the time came to retrofit other drive components, the customer once again turned to SEW‑EURODRIVE.

Further services and customer benefits

  • As-new repair with a 24-month warranty for defects covering the drive as a whole and components
  • Quick Check with a 12-month warranty for defects covering drive components checked and found to be OK
  • Pick-Up and Delivery Service for fast pick-up and delivery of drive technology – including support from a service expert, if required, during removal and installation of drive components
  • Examination with an inspection scope and oil analysis for preventive drive technology diagnostics and prevention of production downtime
  • 24h service hotline (0800 7394357 in Germany) for round-the-clock access to trained technicians and engineers
  • Never far away with 33 sales and service sites all over Germany


is one of the many services we offer throughout the entire system life cycle.

Only with state-of-the-art machines and systems can you achieve the best possible productivity. Using our Retrofit Service to integrate our latest drive technology and drive automation will optimize your existing system's availability and process reliability.

Further information about our Retrofit Service