Automotive Tubing Manufacturer Pressure Regulator Supply

Yes. The MicroAir II series accepts contact closure inputs (Air Up / Air Down) from diameter gauges or external controllers. The MicroAir IV series accepts a 0–10 volt analog input, making it fully compatible with PLCs and other automated control devices for closed-loop automotive tubing diameter control.

MicroAir I and II series units have a standard response time of approximately 2 minutes to full scale — suitable for stable, continuous extrusion. MicroAir IV series units respond in less than 0.1 second (typically 20 milliseconds for 50% of full scale), making them ideal for high-speed bump and taper automotive tubing applications.

Single-channel units are sufficient for standard single-lumen automotive tubing. Dual-channel units support two simultaneous pressure zones. For multi-lumen or complex automotive profiles, 3-channel or 4-channel MultiAir units allow each lumen to be independently controlled with its own pressure range and display, all within a single stainless steel enclosure.

Yes. All MicroAir pressure regulators are CE compliant for international shipping and are manufactured in the USA in Shrewsbury, Massachusetts. They ship worldwide via UPS, DHL, or FedEx and are currently used by automotive and plastic tubing manufacturers in 18 countries including Germany, Japan, China, and Canada.

MicroAir IV units achieve accuracy of +/- 0.1% of full scale for pressures below 60" of water and +/- 0.3% above 3 psi. Stability is maintained at less than +/- 0.2% for 30 inches of water and below. Viscostatic damping fluid ensures stable, hysteresis-free operation even as flow rates vary across the extrusion run.

All MicroAir units include a 3-year warranty on parts and labor with unlimited phone support. A range change service is available, free of charge within 30 days of purchase. OLC's engineering team, with over 35 years of experience, provides technical assistance by phone at 978-562-5353 or by email at olc@onlinecontrols.com.