Stern Hydraulic Cylinders for Vertical Roller Mills: Precision That Evolves with the Process

Vertical roller mills operate under simple principles but within highly demanding mechanical environments. Thermal variations, vibrations, and dynamic loads require every component to maintain both structural integrity and functional accuracy over thousands of load cycles.

In this context, Stern Hidráulica hydraulic cylinders play a key role: ensuring process stability and repeatability even as operating conditions evolve.

Adaptability and Stability Under Load

Our cylinders are designed to maintain stroke precision over time. Beyond providing force, they must absorb misalignment, compensate for thermal expansion, and preserve sealing and internal guidance under high load and progressive wear.

Each unit is manufactured in-house under strict dimensional control and tested for pressure and cycle endurance, ensuring consistent mechanical response in continuous operation.

Design for Durability

Stern cylinders for vertical roller mills feature:

• Optimized internal guidance, minimizing friction and maintaining alignment under lateral stress.
• High-efficiency sealing systems, resistant to elevated temperatures and abrasive particles.
• Precision surface finishing, extending seal life and ensuring smooth motion.
• Tight tolerance control, guaranteeing repeatability and long-term pressure stability.

Supporting Overall Mill Performance

These cylinders are integral to both main spring modules, which regulate grinding forces, and swing-out systems, which enable safe roller maintenance.Their reliability directly influences product quality, process stability, and maintenance efficiency.

Stern Engineering: Precision That Lasts

With over 60 years of experience in industrial hydraulic systems, Stern Hidráulica designs and manufactures customized solutions for the most demanding applications.Our goal: to ensure that each cylinder retains its original precision throughout its service life—delivering control, stability, and continuity in motion.