Ring Inductive Proximity Sensor (30mm Hole Diameter)

Ring Inductive Proximity Sensor (30mm Hole Diameter) provides reliable detection of metal objects passing through a circular sensing field. This industrial inductive sensing unit operates from 6–36V and delivers NPN normally‑open output suitable for automation systems and monitoring circuits. High‑speed detection circuitry enables accurate recognition of fast‑moving metal parts such as screws, washers, and nuts. A built‑in indicator LED displays detection status, while an adjustable sensitivity knob allows tuning for different metal targets and detection conditions. A sealed brass nickel‑plated housing with flame‑retardant construction ensures durability, corrosion resistance, and stable operation across demanding industrial or workshop environments.

Figure: Ring Inductive Proximity Sensor 30mm

Fast and Accurate Metal Detection

This inductive metal detection module identifies conductive objects moving through the sensing ring with less than 1ms response time. A switching frequency of 300Hz enables reliable monitoring of fast‑moving small metal components in automated production lines or mechanical systems. Stable detection performance ensures accurate recognition of screws, nuts, washers, and similar hardware pieces even during rapid motion or continuous material flow.

Adjustable Sensitivity and Visual Status Indication

An integrated sensitivity adjustment knob allows precise calibration according to object size, distance, or environmental conditions. Clockwise rotation increases sensitivity for smaller targets or longer detection range. An onboard LED indicator clearly displays detection status by illuminating when metal objects enter the sensing zone, enabling quick system diagnostics and convenient real‑time monitoring during installation or operation.

Rugged Industrial Construction

A brass nickel‑plated enclosure combined with flame‑retardant materials provides strong mechanical durability and corrosion resistance. The IP66 protection rating supports operation in dusty or humid environments, while an operating temperature range of -25℃ to 65℃ allows dependable performance across indoor manufacturing spaces or outdoor industrial installations. A 2‑meter cable facilitates flexible integration into machinery or monitoring systems.

Typical deployment scenarios include counting metal components, detecting wire breakage, identifying material jams, and monitoring parts movement in automation equipment. Circular inductive detection makes this metal‑sensing module especially suitable for conveyor systems, cable monitoring assemblies, and manufacturing lines where objects pass through a defined sensing ring.