LJ18A3-5-J/EX接近开关/LJ18A35J/EX

产品概述

LJ18A3-5-J/EX接近开关是一款电感式无触点位置传感器，采用非接触式检测原理，适用于工业自动化控制场景。该产品通过电磁感应实现金属物体的检测，无需机械接触即可触发信号输出，具有响应速度快、使用寿命长、抗干扰能力强等特点。其结构采用金属外壳设计，底部圆弧表贴抗震工艺，适用于震动较大的工作环境，同时支持防水、防腐蚀功能，可满足复杂工业场景的需求。14

功能特点

LJ18A3-5-J/EX接近开关具备高灵敏度和稳定性，检测距离为5mm，响应频率高，适用于快速移动物体的检测。产品内置LED指示灯，可直观显示工作状态。输出方式支持直流两线常开（NO）配置，兼容PLC等控制设备。外壳材质为黄铜镀铬或镍铜合金，防护等级达到IP67，适用于潮湿、多尘或油污环境。产品安装简便，提供埋入式和非埋入式选项，埋入式设计可与金属表面齐平安装，非埋入式则需预留检测空间。71528

技术参数

产品工作电压为DC10-30V，输出电流200mA，温度适应范围-25℃至150℃。外形尺寸为直径18mm的圆柱形，螺纹规格为M18×1，长度50mm。其核心优势包括浪涌保护、逆极性保护和短路保护功能，确保在电压波动或接线错误时仍能稳定工作。产品重复定位精度高，瞬变过程短，适用于机床、输送设备、包装机械等领域的限位、计数或定位控制。42230

应用场景

LJ18A3-5-J/EX广泛应用于冶金、矿山、化工、电力等行业，典型场景包括金属零件位置检测、自动化生产线物料分拣、设备安全防护等。例如，在机床控制中可作为行程开关替代机械限位装置，或在输送系统中检测金属辊筒的运转状态。其抗震设计特别适合矿山机械、工程车辆等高频震动环境。产品还可与其他传感器联动，构建复杂的工业自动化控制系统。227

Product Introduction (English)

The LJ18A3-5-J/EX proximity switch is an inductive non-contact position sensor designed for industrial automation. It operates based on electromagnetic induction to detect metal objects without physical contact, ensuring fast response and long service life. The device features a robust metal housing with anti-vibration design and IP67 protection, suitable for harsh environments such as humidity, dust, or oil exposure. Its built-in LED indicator provides real-time operational status monitoring. 14

Key Features

With a detection range of 5mm, this sensor offers high sensitivity and stability for rapid-moving targets. It supports a two-wire DC normally open (NO) configuration, compatible with PLCs and control systems. The housing is made of brass or nickel-copper alloy, available in flush (embedded) or non-flush mounting styles. The flush version allows installation level with metal surfaces, while the non-flush type requires detection space. Additional protections include surge suppression and reverse polarity safeguards. 715

Technical Specifications

Operating voltage ranges from 10-30V DC with 200mA output current. The cylindrical body measures 18mm in diameter (M18×1 thread) and 50mm in length. It functions reliably within -25°C to 150°C, ideal for extreme conditions. The sensor’s short signal delay and high repeatability make it suitable for precision applications like machine tool positioning or conveyor belt monitoring in industries like steel manufacturing or automotive assembly. 422

Applications

This sensor is widely used in metal detection, automated production lines, and safety systems across sectors such as mining, chemical processing, and energy. Typical use cases include replacing mechanical limit switches in CNC machines or integrating into material handling systems for object counting. Its shock-resistant design performs well in heavy machinery and construction equipment, ensuring durability under continuous vibration. 227

欢迎光临上海双旭电子有限公司 接近开关  漆膜测厚仪  照度计   超声波测厚仪

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