Precision Medical-Grade Catheter Extrusion Services Support

On Line Controls, Inc. does not operate as a contract catheter extrusion manufacturer. The company supports catheter and medical tubing extrusion lines with MicroAir ultra-low air pressure regulators, repairs, and technical support. These products help manufacturers control internal air support during free extrusion, improving dimensional stability for medical tubing, catheter, bump, and taper applications.

MicroAir regulators deliver precise ultra-low air pressure control inside extruded tubing. This internal air support helps stabilize outside diameter, inside diameter, and wall consistency during catheter and medical tubing production. The units are designed for instant response to air flow changes, stable hysteresis-free operation, and reliable control even during cuts or spooling.

MicroAir IV is commonly suited for high-speed switching needs because it accepts a 0–10 volt input and can connect to PLCs or other equipment. This makes it useful for bump and taper tubing applications where pressure changes must occur quickly and repeatably. MicroAir I and II may fit simpler manual or contact-closure control requirements.

MicroAir units are available in ranges from as low as 0–2 inches of water up to 0–5 psi. This allows engineers to select a regulator appropriate for delicate medical tubing and catheter extrusion requirements. Single-channel, dual-channel, three-channel, and four-channel configurations are available depending on line setup and process complexity.

MicroAir products are known for long service life, often lasting 10 to 20+ years with low maintenance requirements. Units less than 10 years old can usually be serviced, and older units may be evaluated. Products with serial numbers lower than 7000 are generally not repairable due to internal body wear after decades of use.

All MicroAir units include a three-year manufacturer’s warranty on parts and labor. Customers also receive unlimited phone support for troubleshooting, installation guidance, maintenance advice, and model-specific questions. This support covers MicroAir I, MicroAir II, MicroAir IV, and multi-channel units used on medical, catheter, straw, automotive, and other tubing extrusion lines.

Yes. MicroAir units less than 10 years old can usually be serviced, often in one day after receipt and testing. Repair may include testing, component service, and damping fluid replacement. A repair cost is provided after evaluation, and a purchase order may be required for out-of-warranty units. Oil-contaminated units may incur a cleanup charge.

Yes. MicroAir units are manufactured in the United States at the company’s Shrewsbury, Massachusetts facility and can be shipped worldwide through carriers such as UPS, DHL, or FedEx. On Line Controls, Inc. serves customers across the United States and internationally, including medical tubing, catheter, automotive tubing, and extrusion OEM manufacturers.