SMC AS Series Speed Controller Pneumatic Flow Control 1/2 in G Inlet 12 mm Outlet Stainless Steel AS4201FS-04-12S

SMC AS4201FS-04-12S speed controller is a pneumatic flow control device designed to regulate actuator motion speed and cycle timing in industrial pneumatic systems. It features a 1/2 inch G inlet connection and a 12 mm tube outlet sized to match common plant requirements and metric tubing systems. The robust construction utilizes stainless steel, brass, and engineered polymers to deliver resistance against corrosion and wear in compressed air applications.

The controller supports a maximum operating pressure of 1 MPa and a proof pressure of 1.5 MPa, providing a reliable safety buffer for demanding pneumatic circuits. Its operating temperature range from -5°C to 60°C ensures suitability across various industrial environments. Sealing materials like Halogenated Nitrile Rubber (HNBR) and Nitrile Rubber (NBR) improve resistance to fluid exposure, enhancing longevity and performance.

This product integrates seamlessly with standard G-threaded plumbing fittings, facilitating easy installation and maintenance compatibility. It is ideal for controlling cylinder retraction speeds on automation lines, flow adjustments on pneumatic conveyors and feeders, fine-tuning motion profiles with valves in assembly cells, and speed regulation on pick-and-place equipment. Additionally, it serves as suitable maintenance spare parts in mechanical workshop rigs.

Its compliance with RoHS standards ensures the unit limits regulated hazardous substances, meeting environmental and safety requirements. The speed controller’s design balances corrosion resistance and wear performance to provide consistent pneumatic control in industrial, manufacturing, and automation settings.

Maximum operating pressure of 1 MPa supports demanding pneumatic systems. Durable construction with stainless steel, brass, and engineered polymers. Operating temperature range from -5°C to 60°C for varied environments. Compatible with standard G-threaded pneumatic fittings for easy installation.

Designed for use in automation, conveyors, and pick-and-place equipment. Sealing materials include Halogenated Nitrile Rubber and Nitrile Rubber for fluid resistance. Proof pressure rated at 1.5 MPa provides safety margin against overpressure.

Complies with RoHS standards, reducing hazardous substances.

This speed controller is an essential pneumatic component for industrial automation, fluid power controls, and mechanical system maintenance. Explore more pneumatic Flow Controllers in the Industrial Tools & Equipment category at EnvMart.