Autonics PRD18-7DN Inductive Proximity Sensor

USD 23.00

M18 inductive proximity sensor with 7mm flush sensing, NPN NO DC 3-wire output, and 300Hz response. IP67 rated, 12-24VDC, high noise immunity.

SKU Autonics-PRD18-7DN Category
Industrial Sensors > Proximity Sensors

Autonics PRD18-7DN Inductive Proximity Sensor

Model Identifier PRD18-7DN
Official Part Number PRD18-7DN
GTIN Standard NA

Technical Overview

The Autonics PRD18-7DN is a high-performance cylindrical inductive proximity sensor featuring an extended sensing distance of 7mm within an M18 nickel-plated brass body. Utilizing a dedicated sensor IC, this DC 3-wire NPN Normally Open sensor delivers exceptional noise immunity and operational reliability in demanding industrial environments. It is engineered with comprehensive built-in protections, including surge, reverse polarity, and overcurrent circuits, making it ideal for precision non-contact detection of metallic objects. Operating on a 12-24 VDC power supply, the unit achieves a fast 300 Hz response frequency and carries an IP67 rating, ensuring robust waterproof and dustproof operation.

Key Features

  • 7mm extended sensing distance for shielded/flush installation
  • DC 3-wire configuration with NPN Normally Open (NO) output
  • Robust M18 nickel-plated brass threaded housing
  • Integrated reverse polarity, surge, and overcurrent protection circuits
  • High response frequency of 300 Hz for high-speed automated systems
  • IP67 waterproof and dustproof protection rating (IEC standard)
  • Built-in red LED operation indicator for clear visual status

Superior Noise Immunity and Extended Sensing via Dedicated IC

Technical Specification Matrix

ParameterValue
Sensor TypeInductive Proximity
Housing SizeM18
Sensing Distance7 mm
InstallationShielded (Flush)
Output TypeNPN Normally Open (NO)
Wiring ConfigurationDC 3-Wire
Power Supply12-24 VDC
Current ConsumptionMax 10 mA
Response Frequency300 Hz
Protection RatingIP67
Housing MaterialNickel-plated Brass
Operating Temperature-25°C to 70°C

Industrial Applications

1. Automated Conveyor Line Metal Detection

Detecting the presence or absence of metallic parts on a fast-moving assembly conveyor to trigger pneumatic sorting gates.

Problem Solved

Mechanical limit switches suffer from high wear on continuous conveyors. The 300Hz response frequency and 7mm non-contact sensing provide reliable, wear-free detection of fast-moving targets.

300Hz Response FrequencyNPN Normally OpenNon-Contact DetectionInductive Sensing

2. CNC Machine Tool Position Verification

Monitoring the home position and tool carriage alignment in industrial CNC routing and precision milling machines.

Problem Solved

Harsh cutting environments expose components to metallic dust and fluids, which cause optical sensors to fail. The IP67-rated brass housing and noise immunity ensure precise detection without fluid ingress.

IP67 ProtectionNickel-Plated BrassNoise ImmunityM18 Threaded Body

3. Packaging Machinery End-of-Travel Limits

Acting as a highly durable end-of-travel limit switch for robotic arms and linear actuators in secondary packaging stations.

Problem Solved

High-cycle packaging operations require switches that do not physically degrade. This solid-state 12-24 VDC sensor eliminates mechanical failure points while its flush mount design saves space.

12-24 VDCSolid-State OperationSurge ProtectionFlush Mount Installation
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