MAXTECH (Maxtech Shnaghai Corporation) received an official Invention Patent Certificate (Patent No.: ZL 2019 1 0889714.5) from the China National Intellectual Property Administration, marking national recognition of a core technology in the field of container spreaders – a “Container Spreader with Dynamically Adjustable Center of Gravity”.
The patent application was filed on September 16, 2019, and after rigorous substantive examination, the patent was officially granted on July 30, 2024. This is another significant milestone in MAXTECH’s R&D journey for port and ship lifting equipment.
Technical Highlight: Breaking the Limitations of Conventional Spreaders
In conventional container spreaders, the combined center of gravity of the spreader plus the container is usually Fixed. When the container load is uneven or when eccentric lifting is required, problems such as spreader tilting, uneven rope forces, and difficult alignment can occur, affecting both efficiency and safety.
MAXTECH's “dynamically adjustable center of gravity” spreader uses a cleverly designed center‑of‑gravity adjustment mechanism that can actively shift the equivalent center of gravity of the spreader in real time to match the actual center of gravity of the container. Key advantages include:
- Dynamic compensation for eccentric loads – Even if the cargo inside the container is unevenly distributed, the spreader self‑adapts to maintain a level lift, preventing container tilting.
- Reduced uneven rope forces – Distributes the load more evenly among the lifting points, extending the life of wire ropes and the spreader structure.
- Improved alignment accuracy – Makes it easier to engage container corner castings, especially when the ship is moving or in a tight yard; reduces the need for manual assistance.
- Enhanced operational safety – Eliminates the risk of container slippage or spreader damage caused by eccentric loading.
This technology is particularly suitable for shipboard container spreaders, Sts Crane spreaders, and MHC spreaders – any application where spreaders must frequently handle varying load distributions.
MAXTECH's Commitment to Innovation
MAXTECH is dedicated to providing customised, fully certified, and intelligent lifting solutions to customers worldwide in the marine, port, and offshore engineering sectors. The granting of this invention patent directly reflects the company’s long‑term investment in R&D and its emphasis on proprietary core technologies.
To date, MAXTECH holds multiple patents and software copyrights in the fields of marine deck crane, grabs, spreaders, and smart monitoring systems. The company's MAX+Smarts intelligent system further integrates AI‑based online monitoring and predictive maintenance into conventional lifting equipment, helping customers reduce operational risks and improve efficiency.
Looking Ahead
MAXTECH will prioritise the application of this patented technology in its telescopic spreaders, semi‑automatic spreaders, and marine container spreaders. Custom designs are available upon request. In addition, this technology will be deeply integrated with the MAX+Smarts platform to enable real‑time spreader status monitoring and automated center‑of‑gravity adjustment.
If you are looking for a container spreader that handles eccentric loads safely and efficiently, or if you wish to upgrade an existing spreader with intelligent features, please contact the MAXTECH technical team. We will provide you with a professional solution.
More products please check: www.maxtechcrane.com
Post time: May-12-2026
