CE Compliant certified

CE Compliant

Rheostat Knobs | Variable Speed Control Knobs

Ultra-low air pressure regulators for precise control of plastic tubing extrusion. Our MicroAir systems deliver hysteresis-free operation with manual and electronic control options, maintaining constant pressure for medical, automotive, and multi-lumen tubing applications with exceptional accuracy and 10-20 year lifespan.

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

Our Range of Products

Single Channel MicroAir I

Single Channel MicroAir I

  • 30-turn manual adjustment knob
  • Pressures below 1 inch of water
  • 10-20 year life expectancy
MultiAir 3-channel MicroAir I

MultiAir 3-channel MicroAir I

  • 30-turn knob for precise adjustment
  • Hysteresis-free regulating action
  • Three separate channels available
Single Channel MicroAir IV

Single Channel MicroAir IV

  • 0-10 volt high speed input
  • Voice-coil linear motor design
  • Response time <0.1 second
MultiAir 3-channel MicroAir II

MultiAir 3-channel MicroAir II

  • Contact closure inputs accepted
  • Different range per channel
  • Manual control with limit lights
Dual Channel MicroAir I

Dual Channel MicroAir I

  • 30-turn precision adjustment knob
  • Stainless steel enclosure
  • Damping fluid for stable operation
Single Channel MicroAir II

Single Channel MicroAir II

  • Contact closure input capability
  • Dual speed up/down buttons
  • Digital display option available

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Frequently Asked Questions

What pressure ranges are available for MicroAir regulators?

Available ranges from 0-2 inches of water up to 0-5 psi, with ultra-low precision control capabilities.

Can these regulators control multiple lumens simultaneously?

What is the typical response time for pressure changes?

Do these regulators require regular calibration?

Can MicroAir systems integrate with existing PLC controls?

What maintenance is required for these pressure regulators?

Are these regulators suitable for medical tubing applications?

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

Precision air control for catheter and medical tubing extrusion with ultra-low pressure regulation

Automotive Manufacturing

Automotive Manufacturing

Precise tubing production for automotive applications requiring consistent diameter control

Plastic Extrusion

Plastic Extrusion

Multi-lumen and profile extrusion with hysteresis-free pressure regulation for optimal quality

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.

Industry-Leading Precision

Ultra-low air pressure regulation down to below 1 inch of water with hysteresis-free operation and exceptional accuracy for precise tubing control.

Proven Durability & Longevity

Products engineered for 10-20+ year lifespan with low maintenance requirements and three-year warranty on all parts and labor.

Expert Technical Support

Over 44 years of manufacturing experience with unlimited phone support and direct worldwide sales from our Massachusetts facility.

Get Expert Guidance on Your Air Pressure Control Needs

Connect with our technical team for personalized recommendations and fast quotes on MicroAir systems for 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