CE Compliant certified

CE Compliant

Made in the USA certified

Made in the USA

MicroAir Regulator for Wire Jacketing Extrusion

MicroAir Regulators for Wire Jacketing Extrusion by On Line Controls, Inc. are ultra-low air pressure regulators engineered for precise internal air support during plastic tubing extrusion. Available in single, dual, and multi-channel configurations with manual, contact closure, or 0-10V PLC control, they deliver hysteresis-free, stable pressure regulation for medical, automotive, and multi-lumen tubing applications.

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 support
  • Hysteresis-free with viscostatic damping action
  • Better than 0.1" water resolution with display
Single Channel MicroAir IV

Single Channel MicroAir IV

  • Sub-0.1 sec response for bump/taper tubing
  • +/-0.1% full-scale accuracy below 60" water
  • 3 modes: Dual State, Linear, and Manual
Dual Channel MicroAir II

Dual Channel MicroAir II

  • Contact closure input from O.D. gauge/controller
  • Dual-speed up/down buttons for manual control
  • Hysteresis-free action with viscostatic damping
Dual Channel MicroAir I

Dual Channel MicroAir I

  • Precise 30-turn knob for manual adjustment
  • Hysteresis-free regulation, dual channel
  • Pressure ranges from 0-3" water to 0-5 psi
Dual Channel MicroAir IV

Dual Channel MicroAir IV

  • High speed <0.1 sec response for taper tubing
  • Dual channel for multi-lumen extrusion 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 precise manual pressure setting
  • Long service life of 10-20 years expected

Showing 1 to 6 of 10 results

Frequently Asked Questions

What is a MicroAir regulator and how does it work in wire jacketing extrusion?

A MicroAir regulator is an ultra-low air pressure controller used to regulate internal air pressure inside plastic tubing during free extrusion. It balances output pressure against a low-tension spring and vents surplus air to maintain a precise, stable set point. This controls the outside diameter of the tubing or jacketing with hysteresis-free accuracy, even as flow rates vary.

What pressure ranges are available for MicroAir regulators?

What control interface options are available — manual, contact closure, or PLC?

How fast is the response time on MicroAir IV models vs. MicroAir I and II models?

Can MicroAir regulators be used for bump and taper tubing applications?

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

What warranty and support does On Line Controls provide with MicroAir regulators?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Medical Device & Tubing Manufacturing

Medical Device & Tubing Manufacturing

Precise ultra-low pressure control for catheter, multi-lumen, and micro-tube extrusion to meet tight OD tolerances.

Automotive Tubing Production

Automotive Tubing Production

Reliable air pressure regulation for automotive plastic tubing extrusion requiring consistent wall thickness and OD.

Plastic Profile Extrusion

Plastic Profile Extrusion

Stable, hysteresis-free air control for plastic profile and straw extrusion with precise diameter management.

Extruder OEM Manufacturing

Extruder OEM Manufacturing

Integrated MicroAir pressure control systems for OEM extruder builders requiring precise, programmable air management.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Plastic Tubing Manufacturers Choose On Line Controls, Inc.

Over 44 Years of Extrusion Expertise

Since 1980, OLC has been the recognized industry leader in ultra-low air pressure regulators, serving plastic tubing manufacturers across 18 countries worldwide.

Precision You Can Rely On

MicroAir regulators deliver hysteresis-free, stable pressure control from below 1" of water to 5 psi, with 10–20+ year product lifespans and no calibration required.

3-Year Warranty & Unlimited Support

Every unit ships with a 3-year warranty on parts and labor, unlimited phone support, and range change services to keep your extrusion line running without interruption.

Get a Quote for Your Extrusion Line Today

Submit your requirements and our team will respond with product recommendations, pricing, and technical guidance tailored to your application.

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.