Single Channel MicroAir II
- Contact closure input from O.D. gauge/controller
- Hysteresis-free viscostatic damping operation
- Better than 0.1" water resolution with display
CE Compliant
Made in the U.S.A.
On Line Controls, Inc. offers a complete range of ultra-low air pressure regulators — the MicroAir series — engineered specifically for ovality control in extruded plastic tubing. These regulators precisely manage internal air pressure during free extrusion, ensuring consistent outside diameter, roundness, and wall uniformity across medical, automotive, and multi-lumen tubing applications.
Talk to our product experts for custom solutions.
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The three basic methods of extrusion are direct (forward) extrusion, indirect (backward) extrusion, and hydrostatic extrusion. In plastic tubing manufacturing, continuous direct extrusion is the most common method, where a polymer melt is pushed through a die to form the tube shape, with internal air pressure used to maintain the tube's bore and outer diameter.
Talk to our experts for custom solutions and tailored guidance.
Provides ultra-low, stable air pressure for precise OD and bore control in single and multi-lumen catheter extrusion lines.
Maintains consistent tubing diameter and wall thickness in automotive hose and tube extrusion for fluid transfer applications.
Independent per-channel air pressure control ensures each lumen maintains correct geometry throughout co-extrusion production.
Regulates internal air support pressure during profile and straw extrusion to prevent deformation and ensure dimensional accuracy.
Talk to our experts for custom solutions and tailored guidance.
Founded in 1980, OLC is the recognized industry leader in ultra-low air pressure regulation for plastic tubing extrusion, trusted by manufacturers across 18 countries.
MicroAir regulators deliver stable, hysteresis-free operation with accuracy to ±0.1% of full scale, ensuring consistent tubing diameter and roundness on every run.
Every MicroAir unit ships with a 3-year warranty on parts and labor, unlimited phone support, and a 10–20 year product lifespan requiring minimal maintenance.
Submit your inquiry and an OLC specialist will respond with tailored recommendations for your extrusion line configuration and pressure control requirements.
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.