O‑Cell ® Testing
The O‑Cell ® (Osterberg Cell ®) is an innovative, bi‑directional load testing device developed to meet the construction industry’s need for a reliable method of testing high-capacity, deep foundations. Established by the experts who pioneered O‑Cell® technology, Fugro Loadtest is a leading global provider of O‑Cell® testing equipment and services. As deep foundation elements and construction projects continue to grow in scale and complexity, Fugro Loadtest delivers critical insights that support long‑term structural performance. Today, ultra‑high‑capacity foundations, which used to be rare and difficult to safely engineer, are becoming standard practice thanks to the capabilities unlocked by O‑Cell® technology.
Capabilities
Installed within the foundation element, the O‑Cell® equipment applies pressure both upward and downward simultaneously, enabling full‑scale static load testing without the need for massive reaction systems. O‑Cell® bi‑directional testing can be used on both preliminary (expendable) and working foundation elements. After testing, the element can be grouted to restore full structural integrity, allowing it to be incorporated into the final structure.
Services
By applying load in two directions, upward against side-shear and downward against end-bearing, it provides accurate data without the need for costly reaction systems, such beams or piles. This means faster testing, a smaller site footprint, and reliable results you can act on immediately. With ISO/IEC 17025 accreditation, patented instrumented rams, and automated load control, O-Cell® delivers precision and compliance you can count on. It supports high-capacity foundations and complex projects, giving you confidence in every design decision.
Benefits
Unmatched capacity
Capable of testing piles and barrettes at loads exceeding 440 MN (100,000 kips)
Risk reduction
Detailed and reliable data means reassurance in foundation design
Efficient testing
Bi-directional testing reduces time on site, CO2 emissions and associated costs
Flexibility across project phases
Ideal for both preliminary and working tests for foundation design and construction
Features
Record‑breaking performance - holder of the world record for the highest load test using O‑Cell®: 320 MN (72,100 kips) on a single pile, and 363 MN on a single barrette.
Bi‑directional static load testing - performed simultaneously in upward and downward directions.
Full‑scale testing - without the need for external reaction systems or heavy ballast.
Restorable foundation elements - tested elements can be grouted and integrated into the final structure.
Supports mega‑pile design - enabling engineers to validate and optimise foundations for the largest modern structures.
Global expertise - 20+ years of experience and involvement in major projects across 68+ countries and access to the world’s largest international load test database enables optimised test programs and improved geotechnical risk management.
Optimise design, reduce risk, and deliver confidence with
Loadtest®
High-precision, safe, and efficient foundation testing services and monitoring solutions for new construction and remediation projects.