LJC18A3系列圆柱型电容式接近开关产品介绍
中文版
LJC18A3系列是一款专为严苛工业环境设计的圆柱型电容式接近开关，凭借稳定的检测性能和坚固耐用的结构，适用于多种复杂场景下的非接触式物体检测需求。该产品采用电容感应原理，可精准识别金属或非金属物体的存在，检测距离灵活可调，满足不同安装场景的应用需求。
此系列产品外壳采用高强度不锈钢材质，表面经过特殊工艺处理，具备优异的抗腐蚀性和耐磨性。防护等级达到IP67，能够有效抵御粉尘、油污及水溅侵入，确保在潮湿、多尘或震动环境中长期稳定运行。宽温设计使其可在-25℃至+70℃的温度范围内正常工作，适应冷库、高温车间等极端工况。内置抗电磁干扰电路，有效避免因周边设备运行造成的误触发，提升检测可靠性。
LJC18A3系列提供多种安装方式，螺纹结构兼容行业通用标准，便于快速集成到自动化产线、输送设备或机械臂等装置中。输出信号支持NPN/PNP双极性选择，并具备短路保护功能，可无缝适配PLC、控制器等工业系统。产品无机械触点设计，避免了传统开关的磨损问题，使用寿命显著延长，降低维护成本。
典型应用领域包括：食品饮料行业的灌装液位检测、包装机械的物料到位监控、汽车制造中的零部件定位，以及物流分拣系统的物体识别等。其紧凑的外形设计和稳定的信号输出特性，为工业自动化流程提供了高效、低耗的解决方案。
English Version
LJC18A3 Series Cylindrical Capacitive Proximity Switch - Durable Industrial Solution
The LJC18A3 series is a cylindrical capacitive proximity switch designed for demanding industrial environments. Utilizing capacitive sensing technology, it provides reliable non-contact detection for both metallic and non-metallic objects, with adjustable sensing distances to accommodate diverse installation requirements.
Constructed with high-grade stainless steel housing and enhanced surface treatment, this series offers exceptional resistance to corrosion, mechanical wear, and chemical exposure. With an IP67 protection rating, it operates reliably in challenging conditions such as humidity, dust, or vibration-prone areas. The extended temperature range (-25℃ to +70℃) ensures stable performance in extreme environments, including refrigeration facilities and high-temperature workshops. Advanced anti-interference circuitry minimizes false triggering caused by electromagnetic noise from nearby equipment.
Featuring industry-standard threaded housing, the LJC18A3 allows flexible mounting on automated production lines, conveyor systems, or robotic arms. It supports both NPN and PNP output configurations with built-in short-circuit protection, enabling seamless integration with PLCs and industrial control systems. The contactless design eliminates mechanical wear, significantly extending service life while reducing downtime and maintenance expenses.
Key applications encompass liquid level detection in beverage filling systems, material presence monitoring in packaging machinery, component positioning for automotive assembly, and object recognition in logistics sorting systems. Its compact form factor and consistent signal output characteristics deliver an energy-efficient solution for industrial automation processes, enhancing operational efficiency across multiple sectors.
