MicroAir Regulator for Automotive Tubing Extrusion

MicroAir regulators are available in pressure ranges starting from 0–2 inches of water up to 0–5 psi, covering ultra-low and low-pressure requirements. The 3-channel MultiAir I also offers extended ranges up to 0–30 inches of water. Multiple ranges per channel are available on multi-channel models, with a free range change service offered within 30 days of purchase.

OLC offers three control interfaces across the MicroAir product line. MicroAir I models use a precise 30-turn manual adjustment knob. MicroAir II models accept Air Up/Air Down contact closure inputs from diameter gauges or other controllers. MicroAir IV models use a 0–10 volt analog input for direct PLC or device control, including high-speed programmable switching for bump and taper tubing.

Yes. MicroAir IV models — available in single, dual, and 3-channel configurations — feature a precision voice-coil linear motor with response times under 0.1 second (typically 20 ms for 50% of full scale). This high-speed switching capability makes them well-suited for bump, taper, and variable-diameter automotive tubing applications where rapid pressure changes are required.

Single-channel models suit standard single-lumen automotive tubing lines. Dual-channel models independently control two lumens or two separate extrusion lines. Three-channel and four-channel MultiAir models are designed for complex multi-lumen automotive tubing where each lumen requires its own independently controlled and separately ranged pressure output.

MicroAir regulators are engineered for a service life of 10 to 20 years. They require no calibration and have low maintenance needs due to viscostatic damping fluid that never contacts the process air. All units ship with a 3-year warranty on parts and labor, and OLC provides unlimited phone support for the life of the product.

Yes. All MicroAir regulators are CE compliant for international shipping and are shipped worldwide via UPS, DHL, or FedEx. On Line Controls serves customers in 18 countries including Germany, Japan, China, South Korea, France, India, Canada, and across Europe and Asia, with the same 3-year warranty and unlimited support available globally.