Precise Air Sizing for Medical Grade Tubing

Yes. The MicroAir IV series (Single, Dual, 3-channel, and 4-channel) accepts a 0–10 volt analog input, enabling direct integration with PLCs, diameter gauges, or other automated controllers. Response time is under 0.1 second (typically 20 ms), making them ideal for closed-loop extrusion control systems.

The MicroAir II series uses contact closure inputs and manual controls with a standard response time of approximately 2 minutes to full scale. The MicroAir IV series uses a precision voice-coil linear motor with 0–10V analog input, delivering a high-speed response of less than 0.1 second — essential for bump and taper tubing applications requiring rapid pressure switching.

The number of channels should match the number of lumens you need to control independently. OLC offers single-channel, dual-channel, 3-channel, and 4-channel MicroAir configurations. For complex multi-lumen catheters, the MultiAir 4-channel MicroAir IV provides individual pressure control per lumen, each with its own display and output option.

Yes. The MicroAir IV series is specifically designed for bump and taper tubing applications. The precision voice-coil linear motor enables high-speed programmable switching, with response times of less than 0.1 second. This allows the air pressure inside the tubing to shift rapidly as the extruder profile changes, maintaining diameter accuracy through each taper transition.

MicroAir IV units achieve accuracy of +/- 0.1% of full scale for ranges below 60 inches of water and +/- 0.3% above 3 psi. Stability is less than +/- 0.2% for ranges of 30 inches of water and below. The MicroAir I series with a digital display provides better than 0.1 inch of water resolution, suited for the finest micro-tube extrusion.

No calibration is required for any MicroAir unit. The viscostatic damping fluid design ensures stable, hysteresis-free operation without contacting the process air, resulting in minimal maintenance. Products are engineered for a service life of 10–20 years. OLC also offers a range change service, allowing units to be re-ranged as production requirements evolve.