Welcome to Seattle Safety

Seattle Safety (SESA) manufactures large payload sled systems for dynamic testing of automotive and aerospace seating and restraint systems (crash dummy testing).

SESA offers both decelerator and acceleration sled systems capability.

Our deceleration sled system uses a pneumatically propelled sled and a programmable decelerator that can reproduce a wide variety of crash pulses with excellent predictive accuracy.

The SESA acceleration sled system has been named, ServoSled, and this system is the next step forward in sled technology. Like the conventional servo-hydraulic sleds, the system uses computer- controlled servo-valves to form the pulse, but the fluid does not itself push the sled. Instead the servo-hydraulic system modulates the pressure applied to a hydraulic friction brake which controls the net force and energy applied to the sled by a pneumatic actuator. The advantage of this approach is that standard industrial single-stage servo-valves and small hydraulic power units can be used with resulting higher frequency response and low cost, complexity, and maintenance

SESA also offers integrated facility packages, including: Sled System, Custom Fixturing, Data Acquisition, Floodlighting, Dummies, Transducers, High Speed Photometrics and Triggering. Installation is provided with each sled system.

Seattle Safety has installed sled systems around the globe, providing superior customer service and support.

We look forward to supporting you too!