MicroAir Sales
Ultra-low air pressure regulators and controllers for plastic tubing extrusion with ranges from 0-2″ water to 0-5 psi.
Experience precision engineering with On Line Controls' industry-leading pneumatic and hydraulic solutions. For over 40 years, we've manufactured ultra-low air pressure regulators and motorized potentiometers that deliver exceptional accuracy, reliability, and durability for plastic tubing extrusion and industrial control applications worldwide.
Comprehensive solutions from precision manufacturing to expert repair and technical support services.
Ultra-low air pressure regulators and controllers for plastic tubing extrusion with ranges from 0-2″ water to 0-5 psi.
Precision DC and AC motorized potentiometers with various RPMs, resistance values, and configuration options for industrial control.
Professional repair service for MicroAir units with same-day turnaround for units under 10 years old.
Expert repair and rebuilding service for On Line Controls and legacy OEM motorized potentiometers from the 80s and 90s.
Comprehensive technical support including troubleshooting, installation guidance, and unlimited phone support with 3-year warranty coverage.
Global distribution of precision control systems to over 18 countries via UPS, DHL, and FedEx with CE compliance.
For over 40 years, On Line Controls has been the industry standard for ultra-low air pressure regulation and precision motorized potentiometers. Our American-manufactured solutions deliver unmatched accuracy, reliability, and durability with lifespans exceeding 20 years, backed by comprehensive technical support and worldwide service capabilities.
Trusted by leading manufacturers worldwide for precision control solutions.
Experience the difference that four decades of precision engineering makes.
Recognized as the industry standard for ultra-low air pressure regulators worldwide.
All products manufactured at our Massachusetts facility with strict quality control standards.
Products engineered for 10-25 year lifespans with minimal maintenance requirements.
Worldwide shipping capabilities and technical support across 18+ countries.
Experienced professionals dedicated to precision engineering excellence.
President
Kay DeWolfe serves as both owner and President of On Line Controls, Inc., bringing over 35 years of invaluable experience to the pneumatic and hydraulic controls industry. Her extensive background spans the evolution of precision control systems from analog to digital technologies. Under Kay's leadership, On Line Controls has maintained its position as the industry standard for ultra-low air pressure regulators while expanding global reach to serve customers across 18+ countries. Kay's deep understanding of manufacturing processes, customer needs, and technological advancement has been instrumental in the company's continued success. Her commitment to quality, reliability, and customer satisfaction drives the company's mission to deliver precision control solutions that exceed expectations. Kay's hands-on approach and technical expertise ensure that every product meets the exacting standards that have made On Line Controls the trusted choice for plastic tubing manufacturers worldwide.
What types of pneumatic and hydraulic solutions do you offer?
We specialize in MicroAir ultra-low air pressure regulators for plastic tubing extrusion and precision motorized potentiometers for industrial control applications. Our products include single and multi-channel configurations with pressure ranges from 0-2″ water to 0-5 psi.
How long do your products typically last?
Do you provide technical support and training?
Can you repair older equipment from other manufacturers?
What warranty coverage do you provide?
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Our experienced engineers are ready to help with your specific application requirements.
International shipping compliance certification
Recognized leader in precision controls
American manufactured quality assurance
Contact our team to discuss your pneumatic and hydraulic control requirements and discover how our solutions can improve your operations.
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
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