PLC-Integrated Air Pressure Control for Extrusion

MicroAir IV units are available in multiple ultra-low pressure ranges starting from 0–3 inches of water column up to 0–5 psi. These ranges cover the internal air support requirements for medical catheter tubing, multi-lumen tubing, automotive tubing, and plastic profile extrusion where extremely fine pressure control is critical to maintaining consistent outside diameter.

MicroAir IV regulators achieve a response time of less than 0.1 second — typically around 20 milliseconds for a 50% full-scale step change. This high-speed performance is enabled by a precision voice-coil linear motor with viscostatic damping, making the units ideal for bump and taper tubing production where rapid, programmable pressure switching is required.

Yes. The MicroAir IV series is available in single, dual, 3-channel, and 4-channel configurations. In multi-channel units, each channel operates independently with its own pressure range, digital display, and output option. This allows separate, precise PLC-controlled air pressure for each lumen in multi-lumen tubing extrusion from a single stainless steel enclosure.

MicroAir IV units achieve ±0.1% of full scale accuracy for pressure ranges below 60 inches of water, and ±0.3% of full scale for ranges above 3 psi. Stability is maintained at less than ±0.2% for 30 inches of water and below. The viscostatic damping mechanism ensures hysteresis-free, stable pressure delivery even as flow rates change during the extrusion process.

Yes. All MicroAir IV regulators are CE compliant for international shipping and are manufactured in the USA. Units operate on dual-selectable 110/220 VAC 50/60 Hz power input, making them suitable for deployment in manufacturing facilities across North America, Europe, Asia, and all 18 countries that On Line Controls currently serves worldwide.

Every MicroAir IV unit includes a three-year warranty covering parts and labor, along with unlimited phone support. On Line Controls also offers a range change service if production requirements shift after purchase. With over 44 years in operation and a team carrying 35+ years of industry experience, technical support is provided directly by product specialists.