LINK is a leader in servo hydraulic and dynamic testing systems and components for use in vehicle testing, aerospace, civil engineering, and more. We bring creative solutions and industry-leading performance into our products and services, whether it’s standard or custom.
With years of experience in shock and vibration testing, our engineers can configure a custom machine to meet your specifications. For anything from servo hydraulic actuators or actuator repair services to large-scale earthquake simulators, new equipment, or equipment rebuild, LINK is the name you can trust.
Watch an overview of our servo capabilities in our Ottawa Lake, MI, facility!
LINK’s actuator product line allows the flexibility of choosing from a wide range of designs. Each model’s particular characteristics are designed to address a specific application or, optimized for a certain market. LINK offers a broad range of fatigue-rated actuators for a wide variety of testing and high-performance industrial applications, including:


LINK servo hydraulic vibration systems help our customers evaluate product designs and materials to develop reliable and cost-effective products quickly and easily. With years of experience in shock and vibration testing, our engineers can configure a custom machine to meet your specifications.
LINK vibration systems are used worldwide for:
• Vibration testing of structures
• Motion simulation for transportation testing
• Load simulation for vehicle exhaust system testing or aerospace applications
• Vehicle component curability, performance, or validation testing
• NVH (Noise-Vibration-Harshness) and BSR (Buzz-Squeak-Rattle) testing
The 3500-servo controller provides a robust solution for performing dependable tests on critical test specimen. The system incorporates an intuitive Windows™ based operator interface providing the test professional a powerful, yet straightforward software.
• Option of single channel component system
• Expands to four channels (and soon eight) of servo control
• Extensive options for advanced testing needs


LINK load frames are used for a variety of structural testing applications. When standard, production-built load frames do not fit your needs, we can provide a solution.