Used Plastic Extruders for Sale

Extrusion machine pricing depends on output capacity, material compatibility, and automation level, typically ranging from tens of thousands to several hundred thousand dollars. Control peripherals such as ultra-low air pressure regulators (MicroAir) and motorized potentiometers — critical for tubing diameter accuracy — are integral investments. Contact On Line Controls for component pricing tailored to your extrusion setup.

MicroAir regulators control the internal air pressure used to size and support the inside diameter of plastic tubing during free extrusion. They regulate ultra-low pressures — down to below 1 inch of water — with hysteresis-free accuracy, enabling precise outside diameter control for medical, automotive, catheter, and multi-lumen tubing applications.

On Line Controls' MicroAir regulators and motorized potentiometers are used in the extrusion of medical tubing, catheter tubing, automotive tubing, multi-lumen tubing, plastic profiles, plastic straws, and micro-tubes. The product range covers single, dual, three, and four-channel configurations to match simple and complex extrusion line requirements.

No. MicroAir regulators are designed to operate without calibration and require minimal maintenance. Their viscostatic damping fluid and precision voice-coil or spring-balanced mechanisms ensure long-term stable operation. Products typically deliver 10 to 20 years of reliable service, and OLC backs every unit with a 3-year warranty on parts and labor.

Yes. MicroAir IV series regulators accept 0–10 volt analog inputs, allowing direct integration with PLCs and other automated control devices. MicroAir II series units accept Air Up / Air Down contact closure inputs from O.D. diameter gauges, enabling closed-loop automated tubing diameter control without manual operator intervention.

Yes. On Line Controls ships worldwide via UPS, DHL, and FedEx to customers across 18 countries including the USA, Germany, Japan, China, Canada, and more. All products are CE compliant for international shipment. Every unit is backed by a 3-year warranty on parts and labor with unlimited phone support included at no additional cost.