
Single Channel MicroAir II
- Contact closure input from O.D. gauge control
- 0.1" water resolution with digital display
- Hysteresis-free viscostatic damping for stability
CE Compliant
Made in the U.S.A.
Precise Air Sizing for Medical Grade Tubing encompasses ultra-low air pressure regulators engineered for medical tubing extrusion, catheter manufacturing, and multi-lumen tubing production. OLC's MicroAir series delivers hysteresis-free, stable pressure control from below 1 inch of water to 5 psi, ensuring consistent outside diameter throughout the extrusion process.










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OLC MicroAir regulators cover pressure ranges from 0–2 inches of water up to 0–5 psi, with multiple selectable ranges in between including 0–3 inches, 0–5 inches, 0–10 inches, 0–15 inches, 0–30 inches of water, and 0–3 psi. Each unit can be configured with the range best suited to your specific tubing extrusion process.
Talk to our experts for custom solutions and tailored guidance.

Precise ultra-low air pressure control ensures consistent OD and wall thickness in catheter and medical tubing extrusion lines.

Stable air sizing regulators maintain tight diameter tolerances during high-volume automotive tubing and plastic profile extrusion.

Multi-channel MicroAir systems independently control each lumen, ensuring structural integrity in complex multi-lumen tubing products.

From micro-tubes to plastic straws and bump-taper profiles, MicroAir regulators deliver accurate pressure across varied extrusion processes.
Talk to our experts for custom solutions and tailored guidance.
MicroAir regulators deliver stable, drift-free air pressure from below 1 inch of water to 5 psi, ensuring consistent tubing outside diameter throughout every extrusion run.
Founded in 1980, OLC is the recognized industry standard for ultra-low air pressure regulators, trusted by leading extruder OEMs and medical tubing manufacturers worldwide.
Every MicroAir unit ships with a 3-year parts and labor warranty, unlimited phone support, and a 10–20-year product lifespan requiring minimal maintenance.
Submit your inquiry and our specialists will respond with tailored recommendations, pressure range guidance, and a custom quotation for your extrusion line.
For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com.
For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com.