MicroAir Regulator for Profile Extrusion

MicroAir units are available in a wide range of pressure options including 0–3 inches of water, 0–5 inches of water, 0–10 inches of water, 0–15 inches of water, 0–30 inches of water, 0–3 psi, and 0–5 psi. The appropriate range depends on the specific material and profile geometry being extruded. Range change service is also available after purchase.

Yes. MicroAir IV models accept a 0–10 volt analog input, making them fully compatible with PLCs and other automated control devices. MicroAir II models accept contact closure inputs from diameter gauges or controllers. MicroAir I models use a precision 30-turn manual knob. All control types support stable, hysteresis-free pressure regulation.

Response time depends on the model series. MicroAir I and II units offer a standard response of approximately 2 minutes from zero to full scale — suitable for steady-state profile extrusion. MicroAir IV units deliver high-speed response of less than 0.1 second (typically 20 milliseconds for 50% of full scale), ideal for applications requiring rapid pressure changes.

Single-channel units are ideal for simple profile or single-lumen extrusion. Dual-channel models support two independent air circuits, such as dual-cavity dies. Three-channel and four-channel MultiAir units are designed for complex multi-lumen profiles where each lumen requires its own independently controlled air pressure at a potentially different range.

Yes. All MicroAir Regulator models are CE compliant, making them certified for international shipping and use in global manufacturing facilities. Many models are also manufactured in the USA at On Line Controls' Shrewsbury, Massachusetts facility, and the company ships worldwide via UPS, DHL, or FedEx to over 18 countries.

Every MicroAir Regulator includes a three-year warranty covering parts and labor, along with unlimited phone support directly from the manufacturer. On Line Controls also offers a range change service — free within 30 days of purchase on select models — and long-term technical support backed by over 44 years of extrusion control expertise.