AirShield is a Coanda-effect air purge nozzle engineered to continuously protect laser profiler optics from dust, debris, and particulate — without interrupting production.
AirShield filmed in a controlled test environment — demonstrating the Coanda airflow and dual-nozzle purge system before field deployment.
Coming soon — a demonstration video showing real dust exposure with and without AirShield, and the effect on sensor image clarity in real time.
Three principles working together to keep your optics clean — continuously, passively, and without moving parts.
Compressed air flows through the nozzle and follows the curved Coanda surface. This creates a low-pressure zone directly at the sensor lens face, while maintaining higher pressure in the surrounding area — effectively producing a continuous suction effect that holds contaminants away from the optical surface.
The pressure differential keeps the lens face in a sustained low-pressure state relative to the environment around it. Dust and debris are pushed away from the optical surface rather than settling on it — no physical contact, no turbulence, no moving parts.
One nozzle is positioned at the camera/receiver lens, the other at the laser emitter. Both optical surfaces are protected independently — ensuring the full measurement path stays clear, not just the imaging side.
Contaminated optics are one of the leading causes of unplanned line stoppages. AirShield keeps the lens clear continuously — no manual cleaning cycles required.
The Coanda effect is purely fluidic — no motors, no wiper blades, no wear components. Once installed with a clean filtered air supply, AirShield runs indefinitely with no maintenance.
Flow is determined directly by input pressure — dial up for more aggressive protection, dial down to conserve. There's no minimum threshold beyond what's needed to maintain the pressure differential at the lens face.
AirShield mounts directly to standard sensor brackets. Designed around the LMI Gocator family with variants available for other laser profilers and vision sensors.
Designed for LMI Gocator
AirShield was purpose-built around the LMI Gocator series of laser profilers. Multiple nozzle variants are available for different Gocator models. Compatible with other sensor platforms — contact us to discuss your application.
Engineered for continuous-duty manufacturing environments. All specs are for the standard dual-nozzle configuration.
AirShield requires filtered, dry compressed air — unfiltered shop air carries moisture and particulate that defeat the purpose. We can supply everything needed to make it work out of the box.
Tell us your sensor model and environment. We'll recommend the right configuration and get you a price.
Distributor inquiries welcome
Interested in carrying AirShield for your region? We're actively expanding our distributor network in the Pacific Northwest. Reach out to discuss partnership options.