In most procurement cycles, PR18-8DP2 is considered with Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series, giving decision-makers confidence that theyβve chosen the most dependable component.
Autonics PR18-8DP2 Proximity Sensor
The Autonics PR18-8DP2 Proximity Sensor provides an 8mm sensing distance with PNP Normally Closed output and a rugged M18 sensing side diameter for accurate metal detection applications. Manufactured by Autonics, this proximity sensor under the PR Series ensures reliable operation with hysteresis max. 10 of sensing distance and a standard sensing target 25Γ25Γ1mm (iron). It functions on a DC 3-wire type 12β24VDC supply, supports a 350Hz response frequency, and provides durable IP67 protection for consistent performance in industrial environments.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR18-8DP2 |
Autonics PR18-8DP2 Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M18 |
| Sensing distance | 8mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 25Γ25Γ1mm(iron) |
| Current specification | Current consumption: Max. 10mA |
| Control output | PNP 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 70β, storage: -30 to 80β |
| 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 Γ 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 PR18-8DP2 sensor features an M18 diameter non-flush sensing face and offers an 8mm sensing distance, optimized for detecting standard iron targets (25Γ25Γ1mm). It operates on a DC 3-wire 12β24VDC power supply and comes with a PNP Normally Closed output, ensuring compatibility with widely used automation controllers. The sensor maintains low power consumption with a maximum current draw of 10mA and a residual voltage under 1.5V, offering stable switching performance. Engineered for harsh environments, its housing is made from nickel-plated brass and a PBT sensing face, ensuring durability and resistance to chemicals and mechanical stress. Itβs rated IP67 and operates effectively between -25Β°C to 70Β°C, with humidity support up to 95% RH. With a 350Hz response frequency, it delivers real-time detection in automated systems where speed and reliability are critical.
The PR18-8DP2 is widely used in conveyor tracking, metal part positioning, and object detection in semi-automated packaging and machining lines. Its PNP Normally Closed configuration is beneficial in fail-safe circuits where the sensor defaults to a high signal. Automation technicians prefer its non-flush design for applications that require extended sensing distances without surrounding metal interference. Whether used in textile cutting machines or robotic arms, the sensor offers high repeatability with minimal downtime. Maintenance engineers appreciate its oil-resistant PVC cable and consistent operation in dusty, high-vibration industrial zones. For academic institutions and training labs, it presents an effective example of practical inductive sensing used in industrial-grade PLC panels and automation circuits.
To browse similar models and view full technical documentation, visit our Autonics Proximity Sensors section. For more sensing and control solutions, check the Autonics brand page.




