34 years of reliable operation: planned replacement of a MAAG CPU-38 at Cemento Cruz Azul

A Smart Approach to Asset Management

The decision reflects a growing focus among cement producers on preventive maintenance and long-term asset management. Replacing critical equipment before failure occurs lets plants schedule service activities, minimize production interruptions, and avoid costly emergency repairs.

The newly installed MAAG CPU-38 gearbox is designed for more than 100,000 operating hours, providing the reliability and performance required for years to come.

The original gearbox, meanwhile, is far from retired. It will undergo a complete overhaul before returning to service as a standby spare – enabling future changeovers in hours rather than days of lost production.

Complete On-Site Replacement in Less Than One Week

The project was executed by the MAAG field service team under the leadership of Bart Foremniak, working alongside trainees William Cassiano and Luiz Costa. Together, the team completed the entire replacement in under a week, including:

• - Site measurements and technical assessment
• - Base frame replacement
• - Removal of the existing gearbox
• - Installation of the new CPU-38 unit
• - Precision alignment and commissioning support

Reliability Built to Last

A gearbox running continuously for 34 years is a testament to robust engineering and well-planned maintenance. This project shows how proactive maintenance decisions help cement producers maximize equipment availability, reduce risk, and maintain uninterrupted operations.

Is Your Drive System Ready for the Future?

Many critical drive systems operate reliably for decades, often unnoticed until problems arise. Knowing the age and condition of your equipment is the first step toward avoiding unexpected downtime.