Smartgyro’s updated SG40 model is set to arrive in Q4 2025.
The SG40, for vessels between 50 to 60ft in length, is a development of Smartgyro’s inaugural gyro stabiliser, first introduced more than a decade ago.
The updated model has the same external appearance, and installation footprint for compatibility with existing installations.
The model’s interior features a completely re-engineered system, designed to deliver greater torque, enhanced onboard serviceability, and lower power consumption.
“We kept the SG40 name because this isn’t about starting over, it’s about building on proven success,” explained Fabrizio Stifani, R&D manager at Smartgyro.
“This upgrade is part of our long-term engineering roadmap, where real-world feedback and targeted innovation come together to ensure every product in our range achieves optimal performance.”
This upgrade is part of our long-term engineering roadmap.
Fabrizio Stifani
The evolution of the SG40 stabiliser is the result of field experience, product development, and testing across the Smartgyro range.
A key milestone came with the SG20, which introduced a Smartgyro-designed motor integrated within the flywheel alongside a re-engineered bearing configuration.
These advancements have now been applied to the SG40.
The latest SG40 also benefits from a streamlined mechanical layout designed to enhance access to key components, reduces assembly time, and minimise manufacturing steps.
Speaking further on the development process, Fabrizio Stifani added: “With the optimised SG40, we applied a disciplined, data-driven approach, uniting our internal testing with lessons from real-world use.
Stronger performance
“Every design decision was measured against clear outcomes: stronger performance, higher efficiency, or greater serviceability.
“Our development philosophy is to refine proven solutions, enhance where possible, and remain firmly aligned with the needs of our customers and installers.”
Key features of the new SG40 include easier onboard maintenance with sensors and bearings more accessible for faster servicing.
Anti-roll torque has increased by approximately +10.5%, from 19,000 Nm to 21,000 Nm.
The weight of the SG40 has decreased from 650kg to 625kg and the operating AC power has been reduced from 1.5–2.5kW to 1.5–2.2kW, while the spool-up AC power has reduced from 4kW to 3.5kW.
