Solid-state cylinder switch

The SMT-8M-A solid-state cylinder switch by Festo features a supplemental on-board LED for proper field commissioning and is designed for T-slot applications on pneumatic drives.


The SMT-8M-A solid-state cylinder switch by Festo features a supplemental on-board LED for proper field commissioning and is designed for T-slot applications on pneumatic drives. Courtesy: FestoThe SMT-8M-A solid-state cylinder switch by Festo is designed for for T-slot applications on pneumatic drives. 

The SMT-8M-A switch is loaded with new features yet the footprint of the switch has been reduced by almost 20 percent, making it one of the most compact solid-state cylinder switches in the market. The SMT-8M-A switch includes both NO/NC and PNP/NPN options in the same housing, giving flexibility to the customer in terms of switching choices and eliminating the need to stock multiple spare parts. The power supply range to 5 V dc on the lower end provides the flexibility to link the output signal directly to a TTL circuit.

The cable quality is superior and makes the sensor completely reliable in drag-chain applications and even on robot arms. It has dust-proof and explosion-proof features that add to application reliability in harsh environments. Its protection rating of IP69K makes the cylinder switch ideal for high temperature and high pressure wash-down applications. In addition, the output signal is guaranteed to stay ON for at least 4 ms in high-speed applications where switch-ON signals could be missed.

Features such as an additional cable clip and supplemental onboard LED aid in easy installation and commissioning in the field as does the sensor’s configurability. The sensor also ships with label-holders at each cable extremity, making it easier to document the sensor in the field.


- Edited by Control Engineering. See motors and drives products.

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