Medical Tubing — Buy Online

Medical grade tubing is plastic tubing manufactured to strict dimensional and material standards suitable for use in medical devices, catheters, and fluid delivery systems. It typically requires precise outside diameter (OD) control during extrusion, biocompatible materials, and consistent wall thickness — all achieved with precision air pressure regulation during the extrusion process.

In the USA, surgical tubing commonly refers to flexible plastic or rubber tubing used in medical procedures, fluid drainage, or laboratory applications. In a manufacturing context, it is often called catheter tubing, medical extrusion tubing, or simply extruded plastic medical tubing. Manufacturers use ultra-low air pressure regulators to control its diameter during production.

Common types of medical tubing include single-lumen tubing, multi-lumen tubing (multiple internal channels), catheter tubing, bump tubing (varying outer diameter), and taper tubing (gradually changing diameter). Each type requires precise internal air pressure control during extrusion to maintain consistent wall thickness and outer diameter tolerances.

Ultra-low air pressure regulators, such as the MicroAir series from On Line Controls, are used to precisely control internal air pressure during free extrusion. These devices regulate pressure from below 1 inch of water up to 5 psi, maintaining consistent OD. They can be manual, contact-closure-controlled, or PLC-connected via 0-10V input.

Yes. On Line Controls offers dual-channel, 3-channel, and 4-channel MicroAir configurations specifically designed for multi-lumen tubing production. Each channel independently controls air pressure for a separate lumen, with each channel able to have a different pressure range and its own digital display, making them ideal for complex catheter geometries.

Yes. All MicroAir units are CE compliant and ship worldwide via UPS, DHL, or FedEx. On Line Controls currently serves customers in 18 countries, including the USA, Germany, Japan, China, France, India, and more. Each unit includes a 3-year warranty on parts and labor with unlimited phone support regardless of location.