Pepperl+Fuchs NJ8-18GK-N

Overview

The Pepperl+Fuchs NJ8-18GK-N is a high-performance M18 inductive proximity sensor engineered for superior reliability and precision in challenging industrial settings. This robust sensor excels at detecting metallic objects with an 8 mm non-flush sensing range. Designed to meet stringent safety requirements, it features a NAMUR normally closed (NC) output and is suitable for applications requiring up to SIL 2 compliance. Its exceptional durability, evidenced by its PBT/PPS housing and high IP66/IP68 ingress protection, guarantees consistent operation even in the harshest conditions. From automated assembly lines to intricate material handling, the NJ8-18GK-N provides an accurate, non-contact sensing solution for critical automation tasks.

Key Features

• Precise Sensing Range: Achieves accurate detection of metallic targets with an 8 mm non-flush installation, minimizing interference.
• NAMUR Output (NC): Features a normally closed switching output, fully compatible with intrinsically safe circuits for enhanced safety.
• SIL 2 Safety Compliance: Engineered for applications demanding up to Safety Integrity Level 2 (IEC 61508), ensuring reliable performance in safety-critical systems.
• Robust Industrial Construction: Built with a PBT/PPS housing and a PBT sensing face, offering exceptional durability and resistance to wear and tear in industrial environments.
• Superior Protection Rating: Boasts an IP66/IP68 rating, providing excellent safeguarding against dust ingress and immersion in water.
• Wide Temperature Adaptability: Functions reliably across a broad operating temperature range of -25°C to +100°C, making it suitable for diverse environmental conditions.
• Compact M18 Design: Its M18 threaded cylindrical housing, with a length of just 39 mm, ensures straightforward integration into various machinery and systems.
• Flexible Connection: Equipped with a 2-meter PVC cable, facilitating easy and adaptable installation.

Technical Specifications

• Model Number: NJ8-18GK-N
• Switching Function: Normally closed (NC)
• Output Type: NAMUR
• Rated Operating Distance (sn): 8 mm
• Installation: Non-flush
• Assured Operating Distance (sa): 0 to 6.48 mm
• Reduction Factors:
  • Aluminum (rAl): 0.4
  • Copper (rCu): 0.3
  • Stainless Steel 304 (r304): 0.85
• Nominal Voltage (Uo): 8.2 V (Ri approximately 1 kΩ)
• Switching Frequency (f): 0 to 200 Hz
• Hysteresis (H): 1% to 7%, typically 4%
• Current Consumption:
  • Target Not Detected: Minimum 3 mA
  • Target Detected: ≤ 1 mA
• Ambient Temperature Range: -25°C to +100°C (-13°F to +212°F)
• Housing Material: PBT/PPS
• Sensing Face Material: PBT
• Degree of Protection: IP66/IP68
• Cable Specifications:
  • Diameter: 6 mm ± 0.2 mm
  • Material: PVC
  • Length: 2 meters
• Dimensions:
  • Length: 39 mm
  • Diameter: 18 mm
• Compliance:
  • Standards: EN IEC 60947-5-2
  • Approvals: cULus Listed for General Purpose, ATEX, IECEx, CCC, Marine approval DNVGL TAA00001A5

Applications

• Safety-Critical Systems: Ideal for integration into applications requiring up to SIL 2 compliance, ensuring robust safety functions and operational integrity.
• Automated Material Handling: Provides precise and reliable detection of metallic objects on conveyor belts, crucial for accurate sorting, positioning, and inventory management.
• Automotive Manufacturing: Essential for precise monitoring and detection of vehicle components during various stages of the assembly process, contributing to quality control and automation efficiency.
• Industrial Packaging Lines: Verifies the presence of metallic components within packaging, maintaining product quality and preventing costly errors in high-speed operations.
• Machine Tool Operations: Accurately monitors the position of metal workpieces and tools, enhancing operational safety, optimizing machining processes, and preventing damage.
• General Industrial Automation: A versatile solution for a wide range of general industrial automation tasks where robust, non-contact metallic object detection is required.

Why Choose This Model?

The Pepperl+Fuchs NJ8-18GK-N stands out as an exceptional choice for industrial professionals demanding both precision and durability from their inductive sensors. Its 8 mm non-flush sensing range, combined with a reliable NAMUR normally closed output, ensures accurate and safe operation, particularly in intrinsically safe circuits. The critical SIL 2 compliance makes it a prime candidate for applications where safety cannot be compromised. Constructed from resilient PBT/PPS materials and featuring an impressive IP66/IP68 rating, this sensor is built to withstand extreme temperatures and harsh environmental conditions, guaranteeing longevity and consistent performance. Its compact M18 design and flexible 2-meter PVC cable simplify integration, making the NJ8-18GK-N a smart investment for optimizing safety, efficiency, and reliability across a multitude of industrial automation scenarios.

Order Now

Enhance the safety and efficiency of your industrial operations with the Pepperl+Fuchs NJ8-18GK-N M18 inductive sensor. Its unparalleled precision, robust construction, and SIL 2 compliance make it the ideal solution for your most demanding applications. Contact us today to place your order or request a quote, and experience the difference that Pepperl+Fuchs quality can make for your systems.