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Pepperl+Fuchs NJ8-18GK-N

by Pepperl+Fuchs

OverviewThe Pepperl+Fuchs NJ8-18GK-N is a high-performance M18 inductive proximity sensor crafted for exceptional reliability and accuracy within demanding industrial environments. This robust sensor precisely identifies metallic objects with an 8 mm non-flush sensing capability. Designed to fulfill rigorous safety standards, it incorporates a NAMUR normally closed (NC) output and is suitable for deployments needing up to SIL 2 conformity. Its outstanding durability, highlighted by a PBT/PPS housing and high IP66/IP68 ingress protection, guarantees consistent operation even under challenging conditions. From automated assembly lines to complex material handling, the NJ8-18GK-N offers an accurate, non-contact detection solution for vital automation processes.Key Features Accurate Sensing Distance: Offers precise detection of metallic targets with an 8 mm non-flush installation, minimizing potential interference. NAMUR Output (NC): Features a normally closed switching output, fully compatible with intrinsically safe circuits for enhanced operational safety. SIL 2 Safety Integration: Developed for applications requiring up to Safety Integrity Level 2 (IEC 61508), ensuring dependable performance in critical safety systems. Durable Industrial Design: Constructed with a PBT/PPS body and a PBT sensing surface, providing exceptional resilience and resistance to wear in diverse industrial settings. Superior Environmental Protection: Boasts an IP66/IP68 rating, delivering excellent defense against dust penetration and water immersion. Extensive Temperature Adaptability: Operates dependably across a broad working temperature range of -25°C to +100°C, making it suitable for various environmental conditions. Compact M18 Form Factor: Its M18 threaded cylindrical housing, with a minimal length of 39 mm, enables easy integration into diverse machinery and systems. Flexible Connection: Equipped with a 2-meter PVC cable, facilitating simple 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 Circuits: Perfect for integration into systems requiring up to SIL 2 certification, ensuring robust safety functionalities and operational integrity. Automated Material Handling: Delivers precise and dependable detection of metallic items on conveyor systems, essential for accurate sorting, positioning, and inventory management. Automotive Manufacturing: Crucial for accurate monitoring and detection of vehicle components during various stages of the assembly process, contributing to quality control and production efficiency. Industrial Packaging Lines: Confirms the presence of metallic components within packages, maintaining product quality and preventing costly errors in high-speed operations. Machine Tool Control: Accurately tracks the placement of metal workpieces and tools, improving operational safety, optimizing machining processes, and preventing damage. General Industrial Automation: A versatile solution for a wide array of general industrial automation tasks where robust, non-contact identification of metallic objects is necessary. Why Choose This Model?The Pepperl+Fuchs NJ8-18GK-N distinguishes itself as a premium choice for industrial sensing. Its combination of an 8 mm non-flush sensing range, NAMUR NC output, and SIL 2 compliance ensures both precision and safety. The robust PBT/PPS housing with IP66/IP68 protection guarantees longevity in harsh environments, while its broad operating temperature range provides excellent adaptability. This sensor’s compact M18 design and flexible 2-meter PVC cable simplify installation, making it an ideal solution for a multitude of critical industrial automation applications requiring reliable metallic object detection.Order NowEnhance your industrial automation with the reliable performance of the Pepperl+Fuchs NJ8-18GK-N inductive proximity sensor. Contact us today for pricing and availability, or to discuss your specific application requirements with our experts. Our team is ready to assist you in finding the perfect sensing solution for your operational needs.FAQHow does the NJ8-18GK-N's non-flush installation benefit my application?A non-flush installation means the sensor can be mounted directly into a metal surface without requiring a clearance around the sensing face. This typically provides a more stable and protected mounting, minimizing the risk of damage while maintaining an accurate sensing distance.What is the significance of SIL 2 compliance for this sensor?SIL 2 compliance indicates that the sensor meets a specific safety integrity level according to IEC 61508. This means it has been rigorously tested and certified to provide a high level of risk reduction for safety-related functions, making it suitable for critical applications where safety is paramount.Can this sensor withstand extreme temperatures?Yes, the NJ8-18GK-N is designed to operate reliably across a wide ambient temperature range of -25°C to +100°C (-13°F to +212°F), making it suitable for use in both very cold and very hot industrial environments.What types of metallic objects can this sensor detect?This inductive sensor is capable of detecting various metallic objects. Its technical specifications provide reduction factors for aluminum, copper, and stainless steel, indicating its sensitivity to different metal types. It is designed for general metallic object detection.Is the Pepperl+Fuchs NJ8-18GK-N suitable for wet or dusty environments?Absolutely. With an IP66/IP68 degree of protection, this sensor offers excellent resistance against dust ingress and can withstand immersion in water. This makes it highly suitable for harsh industrial settings where moisture, liquids, and particulates are present.

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