Automated Setpoint Control for Tubing Extrusion Lines

Becoming an extrusion operator typically requires a high school diploma or equivalent, followed by on-the-job training at a plastics manufacturing facility. Key skills include understanding of extrusion machinery, process parameters such as temperature and pressure, and quality measurement. Many operators advance by learning automated control systems like air pressure regulators and setpoint devices used to maintain tubing dimensions.

Automated setpoint control in tubing extrusion involves using precision devices — such as motorized potentiometers or programmable air pressure regulators — to automatically maintain predefined process parameters like internal air pressure. This ensures consistent tubing outside diameter, wall thickness, and structural integrity without continuous manual operator intervention.

MicroAir I is a manual-only unit controlled via a 30-turn fine adjustment knob. MicroAir II accepts contact closure inputs from O.D. gauges or diameter controllers for semi-automated control. MicroAir IV accepts 0-10 volt analog input from a PLC or similar device, enabling fully automated, high-speed switching with response times under 0.1 second — ideal for bump and taper tubing applications.

Yes. OLC's multi-channel MicroAir units — available in dual (2), 3-channel, and 4-channel configurations — provide independent air pressure control for each lumen in multi-lumen tubing. Each channel can be configured with a different pressure range and its own digital display, making them ideal for medical catheter and multi-lumen tubing production.

MicroAir units are available in a wide range of ultra-low to low pressure options, from 0-3 inches of water up to 0-5 psi. Extended ranges up to 0-30 inches of water are also available on select MicroAir I models. Custom ranges can be specified at the time of order, and range change service is available after purchase.

OLC setpoint control products are engineered for medical tubing, catheter manufacturing, multi-lumen tubing, bump and taper tubing, automotive tubing, plastic profile extrusion, and plastic straw extrusion. Motorized potentiometers are also widely used in speed controls, flow meters, and tensioning motor applications across industrial automation environments.