Autonics PR18-8DN2 Cylindrical Inductive Proximity Sensor
PR18-8DN2 cylindrical inductive proximity sensor provides M18 diameter, 8mm sensing distance, non-flush installation, and NPN normally closed output operation. Manufactured by Autonics, this Autonics Cylindrical Inductive Proximity Sensors model is part of Autonics Proximity Sensors and the PR Series, operating on DC 3-wire 12–24V supply with IP67 protection, 350Hz response frequency, and controlled current consumption.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR18-8DN2 |
Autonics PR18-8DN2 Cylindrical Inductive Proximity Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M18 |
| Sensing distance | 8mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 25×25×1mm(iron) |
| Current specification | Current consumption: Max. 10mA |
| Control output | NPN Normally Closed |
| Wire type and power | DC 3-wire type 12-24VDC @(=) |
| Installation | Non-flush |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Residual voltage | Max. 1.5V |
| Environment_Ambient temperature | -25 to 70℃, storage: -30 to 80℃ |
| Environment_Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Protection structure | IP67(IEC standard) |
| Material | Case/Nut: Nikel plated Brass, (connector case of DIA. of sensing side Ø 8 mm: SUS303),washer: Nikel plated Iron, sensing side: polybutylene terephthalate,standard cable (black): polyvinyl chloride (PVC),oil resistant cable (gray): oil resistant polyvinyl chloride (PVC) |
| Response frequency | 350Hz |
| Weight | Approx. 122g(approx. 110g) |
The Autonics PR18-8DN2 Cylindrical Inductive Proximity Sensors is designed for industrial automation environments requiring stable inductive detection. This model features a M18 cylindrical body, 8mm sensing distance, and NPN normally closed output with DC 3-wire 12–24V operation. It belongs to the PR Series from Autonics and is widely specified in Indian industrial automation systems.
In practical applications, the PR18-8DN2 proximity sensor is used in conveyors, packaging machines, automated assembly lines, and material handling equipment. Non-flush mounting supports extended sensing range, while consistent inductive detection ensures accurate metal target recognition. This contributes to reliable switching behavior and stable signal output in continuous automation processes.
The PR18-8DN2 from Autonics delivers dependable sensing performance supported by IP67 protection and defined electrical characteristics. As part of the Autonics PR Series, it aligns with standardized sensing targets and industrial installation practices. This Autonics Cylindrical Inductive Proximity Sensors model remains suitable for engineers seeking reliable proximity detection for long-term industrial automation use.




