ONPOW outlines technical selection criteria for industrial limit switches

ONPOW Push Button Manufacture Co., Ltd. has issued a technical guide regarding the selection of roller plunger limit switches for industrial applications. These devices are utilized to convert linear motion into an electrical signal, where the roller element serves to reduce sliding friction and surface wear in applications involving both axial and lateral cam movement.

According to the company, selecting the appropriate switch requires a comprehensive assessment of the operating environment, including cam profile, approach speed, and mounting rigidity. The manufacturer stresses that the switch must not be used as a physical mechanical stop and that excessive side force or improper cam engagement can lead to premature failure of the internal mechanism, regardless of electrical compatibility.

Engineers are advised to verify that the switch travel, including overtravel margin, aligns with the specific machine requirements under all tolerance conditions. ONPOW notes that technical specifications, including load ratings and environmental ingress protection, must be cross-referenced with actual machine validation to ensure long-term operational reliability.