Many engineers reviewing Autonics PR18-8DN also explore Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series, ensuring they donβt miss strong alternatives before finalizing procurement decisions.
Autonics PR18-8DN Proximity Sensor
The Autonics PR18-8DN Proximity Sensor features an 8mm sensing distance with NPN Normally Open output and a reliable M18 sensing side diameter for precise industrial detection. Manufactured by Autonics, this proximity sensor from the PR Series ensures stable performance with hysteresis max. 10 of sensing distance and a standard sensing target 25Γ25Γ1mm (iron). It operates on a DC 3-wire type 12β24VDC power supply, supports 350Hz response frequency, and includes durable IP67 protection for industrial automation environments.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR18-8DN |
Autonics PR18-8DN Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Brand | Autonics |
| 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 | NPN Normally Open |
| 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 PR18-8DN Proximity Sensor from the PR Series is a high-performance DC three-wire inductive sensor ideal for contactless metal detection in automation systems. It operates on a 12β24 VDC power supply with an NPN Normally Open output, offering an 8 mm sensing range and 350 Hz response speed. Its IP67-rated nickel-plated brass housing provides durability against moisture, oil, and dust. The Autonics PR18-8DN Proximity Sensor ensures accurate and consistent operation, supporting automation reliability across industrial sectors in India.
The Autonics PR18-8DN Proximity Sensor is widely applied in industrial automation, packaging, robotics, and assembly systems for metal detection, part positioning, and conveyor feedback. Its non-flush M18 design offers extended detection range, making it suitable for larger or recessed metallic targets. With a 12β24 VDC NPN Normally Open configuration, it easily interfaces with PLC systems and machine controllers to provide precise output signals. The IP67 enclosure ensures consistent performance even in dusty or oily environments. Across production facilities in India, engineers rely on the Autonics PR18-8DN Proximity Sensor for long-term reliability and accuracy in high-speed automation processes.
Autonics Corporation, a leading manufacturer in industrial automation solutions, ensures the PR18-8DN Proximity Sensor meets global reliability and performance standards. Manufactured under strict ISO-certified processes, every Autonics proximity sensor undergoes rigorous testing for stability, temperature endurance, and vibration resistance. Known for quality and precision, Autonics sensors are trusted by OEMs, system integrators, and automation engineers across India. The PR18-8DN exemplifies the brandβs commitment to dependable sensing performance in demanding industrial conditions, supported by Autonicsβ technical expertise and after-sales service network.
Within the Autonics PR Series, the PR18-8DN represents the NPN Type, Normally Open configuration suitable for systems requiring signal output upon metal detection. For automation setups that require reverse logic operation, the compatible variant is the PR18-8DN2, which offers a Normally Closed output while maintaining the same 8 mm sensing distance, 12β24 VDC operation, and IP67-rated construction. Both models share an identical M18 non-flush design and durable housing. The PR18-8DN remains the ideal choice for Normally Open NPN logic within DC-powered automation systems.
The Autonics PR18-8DN Proximity Sensor offers 8 mm sensing range, NPN Normally Open output, and IP67 protection for precise metal detection in industrial automation. Its non-flush M18 configuration and 12β24 VDC power design deliver reliable sensing in machinery, conveyors, and packaging systems. Backed by Autonicsβ engineering excellence and global support network, the PR18-8DN Proximity Sensor provides durability, accuracy, and consistent operation for automation professionals across India.
Autonics PR18-8DN People Also Asked Questions
What is the sensing distance and output configuration of the Autonics PR18-8DN Proximity Sensor?
The Autonics PR18-8DN Proximity Sensor provides a sensing distance of 8mm and uses an NPN Normally Open (NO) output configuration. Designed with a non-flush mounting type, it allows for accurate and stable metal detection without direct contact. Its M18 cylindrical body makes it a versatile choice for automation systems requiring high reliability and precision.
What are the electrical and performance features of the Autonics PR18-8DN?
This proximity sensor operates on a DC 3-wire type 12β24VDC power supply and consumes a maximum current of 10mA. It features a fast response frequency of 350Hz, ensuring efficient detection in high-speed automation lines. The residual voltage is limited to 1.5V max, providing stable output signals for integration with PLCs, relays, or controllers in industrial setups.
How durable is the Autonics PR18-8DN in industrial environments?
The Autonics PR18-8DN Proximity Sensor is constructed with a nickel-plated brass housing and a polybutylene terephthalate sensing face for enhanced durability. It is rated IP67, offering strong protection against dust, water, and oil exposure. Operating effectively between -25Β°C to 70Β°C, it performs reliably in harsh industrial conditions such as packaging, assembly, and metal processing applications.







