AirShield is a Coanda-effect air purge nozzle that continuously protects any laser-and-camera sensor — LMI Gocator, ifm, Keyence, and more — from dust, debris, and particulate, without interrupting production.
AirShield protects any laser-triangulation sensor — a laser emitter paired with a camera receiver. If that describes your sensor, AirShield can protect it. Here's what's already field-proven, with a nozzle variant matched to each.
The full Gocator laser-profiler series. Multiple nozzle variants for different models.
Including the OID200 photoelectric distance sensor. Field-deployed and running.
The complete Keyence point and profile sensor lineup — every model we've tested, protected.
If it uses a laser and a camera, we'll build a nozzle variant for it. Tell us your sensor →
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.
This is a simplified simulation of an inspection line — dust accumulates on the sensor's lens exactly like it would in a dusty manufacturing environment. Press and hold the button to see AirShield clear the view.
Watch dust build up on the sensor's lens as parts pass on the line. Press and hold Activate AirShield to purge the lens and restore a clean, reliable read.
Status: Scanning — lens clean
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, with a nozzle variant matched to each supported sensor. Field-proven on LMI Gocator, ifm OID, and the full Keyence point & profile lineup.
If it has a laser and a camera, AirShield fits it
AirShield protects any laser-triangulation sensor — a laser emitter paired with a camera receiver. Already field-proven on the LMI Gocator series, ifm OID sensors, and the full Keyence point & profile lineup, with a nozzle variant matched to each. Running a different model? We'll build a variant for it.
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 — quotes returned within 1 business day.
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.