Water bags | Crane load testing

Solutions for hoist testing and crane certifications. 

SYM Naval’s load tests with water bags allow your project to move safely faster and with the confidence and quality of a professional team with an experience of more than 25 years in the sector.

SYM Naval uses materials with the highest performance to perform load tests of up to 120 tons. Water bags used in load tests are manufactured with high resistance fabrics, equipped with drain valves, filling hoses and lifting belts, all of which guarantees a safe process.

A fast and safe system to perform gradual load tests. 


Fast and reliable

Water bags are easier to fill than sandbags. This ensures a faster service. In addition, performing load tests with water bags reduces costs and are easy to transport, store and handle, thus reducing times.


Professional service

SYM Naval has a technical team and operators with many years of experience, and trained to perform load tests that yield reliable results. The company offers a professional and personalized service. The wide range of sizes, with water bags of different load capacities, allows to make reliable hoist testing following the specific requirements of each project.

A reliable and quality service thanks to a professional technical team.


In addition to water bag loading tests, SYM Naval is a technical assistance specialist with worldwide coverage in port, at sea and in dry dock. The company has a shipyard in Barcelona and a naval workshop in the Caribbean. From these strategic bases SYM Naval constructs, converts and repairs all types of ships giving international coverage.





Available to assist ships
24 hours a day,
365 days a year

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Need more information?

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