When “a hair’s breadth” isn’t precise enough, engineers turn to Baumer’s My-Com precision switches. With a repeat accuracy of 1µm—approximately one-fifth the width of a human hair—these mechanical limit switches have been delivering flawless performance for over five decades. Despite their vintage origins (first introduced in 1966), My-Com switches remain among the most precise and compact solutions in their category globally, even outperforming many modern measuring instruments and machine tools.

The name “My-Com” derives from “Micro Commutator,” a term that reflects its groundbreaking design. This precision switch was Baumer’s first major proof of its ability to achieve exceptional performance levels—a capability the company maintains today. Its success stems from a unique architecture featuring just three moving parts and premium components like gold-plated contacts, all housed within a meticulously engineered system.

At the heart of My-Com’s repeat accuracy lies a specialized ceramic tappet refined for industrial precision. This component precisely controls a gold-plated ball with a force of 30 cN, ensuring reliable contact interruption across up to 10 million cycles without compromising its high-precision standards.

Standard My-Com switches offer the familiar “normally closed” functionality but can be equipped with integrated electronics for “normally open” operation or LED indicators—features ideal for direct SPS control and electronic inputs. For harsh environments involving dirt, moisture, or abrasive dust, a version with IP 67 protection (thanks to Viton seals) ensures reliable performance in challenging conditions.

The modular design of My-Com allows users to mix and match components freely, creating custom solutions tailored to specific needs without sacrificing precision or reliability. This flexibility has cemented its reputation as both versatile and universal—making it suitable for everything from space exploration to pharmaceutical applications.

Since being patented over 60 years ago, My-Com has found a place in thousands of applications worldwide, including weather satellites operated by ESA, the International Space Station (ISS), and various industrial sectors like robotics, textiles, packaging, and machine tools. In industries where precision defines quality, Baumer’s My-Com switches consistently deliver unmatched reliability—proving that “hair’s breadth” is no longer an obstacle but a benchmark exceeded with ease.

Last Updated: 2025-09-04 23:51:58