GravityVibe is an innovative solution designed to enhance bulk carriers’ efficiency by allowing them to discharge a broader range of coarse materials. Unlike the traditional gravity self-unloading systems, which typically require steep slopes of 35 to 60 degrees, GravityVibe operates effectively with slope angles of only 15–20 degrees. This breakthrough stems from extensive research and development, leveraging MacGregor’s long-standing experience in self-unloader design and a deep understanding of various material characteristics.
To ensure the system’s viability, MacGregor has partnered with international institutions to conduct theoretical studies. A simulation performed by TUNRA, a subsidiary of the University of Newcastle in Australia, confirmed that GravityVibe effectively handles materials like wood chips, manufacturing sand, and gravel. Subsequently, MacGregor investigated the vibrations generated by the system and collaborated with leading sub-suppliers and the KTH Royal Institute of Technology in Sweden to analyze sound and vibration levels, which were found to be well within acceptable limits.
Currently, MacGregor is conducting practical analyses with a full-scale test rig in China to validate GravityVibe’s performance. Early results corroborate previous findings, confirming efficient discharge capabilities for all tested materials while maintaining vibration and sound levels below class-defined thresholds. Building on this foundation, MacGregor is focused on optimizing the system using feedback from their test facility.
Furthermore, engagement with customers is integral to MacGregor’s development process. By obtaining insights through demonstrations and consultations, the company enhances its understanding of client needs, which is crucial for the product’s validation and eventual market launch. A significant aspect of GravityVibe is its self-optimizing functionality, utilizing built-in sensors to adjust vibration frequencies based on material characteristics, thus ensuring efficient operations without necessitating manual intervention.
In the next few months, MacGregor plans to test a broader array of materials to refine the system further and prepare for an upcoming market launch.