company news about Proximity Sensor Selection Guide: 2 Steps to Avoid Pitfalls

Workpiece presence check, part positioning, material detection… Proximity sensors are widely used in automation sites.
Faced with numerous models and parameters, sensor selection does not have to be complicated. It boils down to two core steps: first, confirm what you need to detect; second, check how it will be mounted.Once these two points are clarified, most selection issues can be solved easily.

Inductive Sensors: First Choice for Metal Detection.
When the target is ferrous metal, stainless steel, aluminum, copper or other metal parts, inductive sensors are usually your top pick.

Typical applications:
Workpiece presence detection of metal parts, part in-place verification, position sensing for gears and cams, position feedback for automated machinery.

Recommended series: Square Inductive Proximity Sensors

You can remember this selection rule: For metal targets, choose inductive sensors first.
Note that different metal materials will affect the actual sensing distance. Comprehensive evaluation based on the target material is required during final selection.

Capacitive Sensors: Suitable for Non‑metal Targets.
Capacitive sensors are the better option when detecting non‑metallic materials such as plastic, glass, liquid, powder and granules.

Typical applications:
Presence detection of plastic and glass,
liquid level monitoring, powder & granule material detection, packaging material inspection.

Recommended series: CR Series

Summary: For non‑metals, liquids and powders, capacitive sensors are the preferred option.
However, capacitive sensors are sensitive to ambient conditions. Pay attention to humidity, surface deposits and installation environment during practical application.

Once the sensing principle is confirmed, the mounting type is equally critical.

Flush Mount: The sensing face can be nearly level with the mounting surface. Ideal for embedding into machinery and space‑constrained locations for concealed installation.

Non-flush Mount: The sensing head needs to protrude from the mounting surface with clearance reserved around it. It delivers a longer sensing distance for similar specifications, yet has stricter mounting requirements.

Quick summary: Choose flush mount for compact and embedded installation; pick non‑flush mount when space is sufficient and a longer sensing distance is required. Besides, do not compare sensing distance alone. You also need to take the mounting position, surrounding metal environment and the manufacturer’s recommended mounting spacing into comprehensive consideration.

Match the working conditions as required to avoid selection pitfalls.

For proximity sensors, higher specifications do not always mean better performance. The key is whether they truly match your on-site requirements.

If you are unsure about the sensor model, no need to hesitate. Just send us information including the target object, sensing distance, mounting space and site environment. Our technical team will assist you with model selection based on your working conditions.