Air Pressure Regulator for Small Diameter Tubing Extrusion

MicroAir I uses a simple 30-turn manual adjustment knob for set-point regulation with standard response (~2 minutes to full scale). MicroAir II adds contact closure inputs for integration with O.D. gauges or external controllers. MicroAir IV features a precision voice-coil linear motor with 0–10V analog/PLC input and ultra-fast response under 0.1 seconds, enabling high-speed bump and taper tubing applications.

Yes. MicroAir II models accept Air Up / Air Down contact closure inputs from O.D. gauges or other controllers for automated diameter control. MicroAir IV models accept 0–10 volt analog input, enabling direct PLC integration for fully automated or programmable pressure control in high-speed extrusion lines.

Each lumen in a multi-lumen tube requires independent pressure control. OLC offers dual-channel (2-lumen), 3-channel, and 4-channel MicroAir units. Each channel can have a different pressure range, its own display, and independent output options, making multi-channel units ideal for catheter and complex medical tubing manufacturing.

MicroAir IV regulators respond in less than 0.1 second — typically around 20 milliseconds for a 50% full-scale step change. This high-speed response is critical for bump and taper tubing applications where pressure must change rapidly and precisely between programmed set points during continuous extrusion.

Yes. All MicroAir units are CE compliant and certified for international shipping. On Line Controls ships worldwide via UPS, DHL, or FedEx and currently serves customers in 18 countries including Germany, Japan, China, France, India, Canada, and more. All units are manufactured in the USA at OLC's Shrewsbury, Massachusetts facility.

MicroAir regulators are engineered for a lifespan of 10 to 20+ years with low maintenance requirements. All units include a 3-year warranty on parts and labor with unlimited phone support. A range change service is also available, allowing units to be reconfigured for different pressure ranges as application needs evolve.