CE Compliant certified

CE Compliant

Made in the U.S.A. certified

Made in the U.S.A.

Catheter Manufacturer Air Pressure Control Solution

On Line Controls, Inc. offers a comprehensive range of ultra-low air pressure regulators — the MicroAir series — engineered specifically for catheter and medical tubing manufacturers. Available in single, dual, and multi-channel configurations with manual or PLC-compatible control, these precision instruments maintain stable internal air pressure during plastic tubing extrusion with hysteresis-free operation and response times as fast as 20 milliseconds.

Single Channel MicroAir II
Single Channel MicroAir IV
Dual Channel MicroAir II
Dual Channel MicroAir I
Dual Channel MicroAir IV
Single Channel MicroAir I
MultiAir 4-channel MicroAir IV
MultiAir 3-channel MicroAir IV
MultiAir 3-channel MicroAir II
MultiAir 3-channel MicroAir I

Our Range of Products

Single Channel MicroAir II

Single Channel MicroAir II

  • Contact closure input from O.D. gauge
  • Hysteresis-free viscostatic damping action
  • 0.1" water resolution with digital display
Single Channel MicroAir IV

Single Channel MicroAir IV

  • Sub-0.1 sec response, typically 20 msec
  • 3 modes: Dual State, Linear, and Manual
  • ±0.1% accuracy for ultra-low pressure ranges
Dual Channel MicroAir II

Dual Channel MicroAir II

  • Dual channel with contact closure input
  • Dual-speed up/down buttons for manual control
  • Hysteresis-free action via damping fluid
Dual Channel MicroAir I

Dual Channel MicroAir I

  • Dual channel for multi-lumen tubing control
  • 30-turn knob for hysteresis-free precision
  • Pressure ranges from 0-3" water to 0-5 psi
Dual Channel MicroAir IV

Dual Channel MicroAir IV

  • High-speed PLC switching under 0.1 second
  • Dual channel for independent lumen control
  • Voice-coil motor with viscostatic damping
Single Channel MicroAir I

Single Channel MicroAir I

  • Regulates below 1" water with high precision
  • 30-turn knob for hysteresis-free set point
  • 10-20 year long life expectancy by design

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Frequently Asked Questions

What is the FDA approved catheter lock solution?

OLC's MicroAir regulators are not lock solutions but are critical for catheter tubing manufacturing — they precisely control internal air pressure during extrusion to maintain consistent OD and wall dimensions. All units are CE compliant for international shipping. For FDA-approved catheter lock solutions (e.g., taurolidine or heparin), consult your clinical or regulatory team.

What is a pressure transducer in a cath lab?

What equipment is used for pressure control?

What pressure ranges are available for catheter tubing extrusion?

Can OLC regulators be controlled by a PLC for automated catheter production?

How many channels do I need for multi-lumen catheter tubing?

What warranty and support does On Line Controls provide?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Medical Device Manufacturing

Medical Device Manufacturing

Precise ultra-low air pressure regulation for catheter and medical tubing extrusion, ensuring consistent OD and wall dimensions.

Multi-Lumen Tubing Production

Multi-Lumen Tubing Production

Multi-channel MicroAir regulators independently control each lumen's air pressure for complex catheter and multi-bore tubing.

Automotive Tubing Manufacturing

Automotive Tubing Manufacturing

MicroAir regulators maintain stable internal air pressure for precise diameter control during automotive plastic tubing extrusion.

Plastic Profile Extrusion

Plastic Profile Extrusion

Ultra-low pressure regulators ensure dimensional accuracy and stable air sizing across plastic profile and straw extrusion processes.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Catheter Manufacturers Choose On Line Controls, Inc.

Industry-Leading Pressure Precision

OLC MicroAir regulators achieve hysteresis-free control down to below 1 inch of water, ensuring consistent catheter tubing OD and wall integrity during extrusion.

Fast Response & PLC Integration

MicroAir IV models respond in under 0.1 second (typically 20 ms) and accept 0-10V analog input, enabling seamless integration with PLCs for bump and taper catheter profiles.

44 Years of Proven Reliability

Founded in 1980, OLC backs every unit with a 3-year warranty, unlimited phone support, and products engineered for 10–20+ year lifespans with minimal maintenance requirements.

Get Expert Guidance on Your Catheter Extrusion Setup

Submit your inquiry and an OLC specialist will respond with product recommendations, pricing, and technical guidance tailored to your tubing process.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com.