接近開(kāi)關(guān)LJ18A3-8Z-BX直流三線NPN常開(kāi)交流型接近開(kāi)關(guān)
產(chǎn)品概述
LJ18A3-8Z-BX是一款高性能直流三線NPN常開(kāi)型電感式接近開(kāi)關(guān)，專為工業(yè)自動(dòng)化控制設(shè)計(jì)。該產(chǎn)品采用非接觸式檢測(cè)原理，當(dāng)金屬物體接近感應(yīng)區(qū)域時(shí)，無(wú)需物理接觸即可觸發(fā)開(kāi)關(guān)動(dòng)作，實(shí)現(xiàn)精準(zhǔn)的位置檢測(cè)和運(yùn)動(dòng)控制。其圓柱形金屬外殼（直徑18mm）結(jié)構(gòu)堅(jiān)固，適合在機(jī)械加工、自動(dòng)化生產(chǎn)線等場(chǎng)景中穩(wěn)定工作。工作電壓范圍為DC6-36V，輸出形式為NPN三線常開(kāi)，具備響應(yīng)速度快、重復(fù)定位精度高等特點(diǎn)。1318
技術(shù)特點(diǎn)
該接近開(kāi)關(guān)基于高頻振蕩原理設(shè)計(jì)，內(nèi)置振蕩器和信號(hào)處理電路，當(dāng)金屬目標(biāo)進(jìn)入感應(yīng)范圍（標(biāo)準(zhǔn)檢測(cè)距離8mm）時(shí)，渦流效應(yīng)導(dǎo)致振蕩衰減并觸發(fā)開(kāi)關(guān)信號(hào)。產(chǎn)品采用全封閉樹(shù)脂填充工藝，具有耐振動(dòng)、防油污、抗腐蝕等特性，可在-20℃~70℃環(huán)境中穩(wěn)定運(yùn)行。尾部配備靈敏度調(diào)節(jié)器，用戶可根據(jù)實(shí)際需求微調(diào)檢測(cè)距離。其無(wú)機(jī)械觸點(diǎn)設(shè)計(jì)避免了傳統(tǒng)行程開(kāi)關(guān)的磨損問(wèn)題，使用壽命顯著延長(zhǎng)。3616
應(yīng)用領(lǐng)域
LJ18A3-8Z-BX廣泛應(yīng)用于機(jī)床設(shè)備、包裝機(jī)械、紡織設(shè)備等工業(yè)場(chǎng)景，可實(shí)現(xiàn)限位控制、自動(dòng)計(jì)數(shù)、速度檢測(cè)等功能。在汽車制造領(lǐng)域用于零部件定位檢測(cè)；在食品飲料行業(yè)配合不銹鋼設(shè)備使用；在物流分揀系統(tǒng)中實(shí)現(xiàn)托盤位置識(shí)別。其兼容性強(qiáng)，可直接與PLC、繼電器等控制設(shè)備連接，簡(jiǎn)化系統(tǒng)集成。典型應(yīng)用包括沖床安全防護(hù)、傳送帶物料檢測(cè)、機(jī)器人臂端定位等。1422
Product Introduction (英文部分)
The LJ18A3-8Z-BX is an inductive proximity sensor with DC three-wire NPN normally open configuration. Its 18mm cylindrical metal housing provides robust protection in industrial environments. Operating on 6-36V DC power supply, this non-contact switch detects ferrous metal targets within 8mm range through electromagnetic field variation, generating clean switching signals without mechanical wear. The epoxy-resin sealed construction ensures reliable performance in challenging conditions including dust, moisture and vibration.318
Key Features
This sensor features stable oscillation-based detection with automatic output switching when metal objects enter the sensing zone. The built-in sensitivity adjustment allows fine-tuning for different application requirements. With fast response time (<1ms) and high repeat accuracy, it excels in precision positioning tasks. The NPN transistor output (open collector) can directly interface with control systems. Its compact M18 threaded design facilitates easy installation on machinery frames or moving parts. The product s maintenance-free operation reduces downtime in continuous production lines.61623
Typical Applications
Ideal for automation systems requiring metal object detection, including CNC machine tool positioning, conveyor belt monitoring, and robotic assembly lines. Commonly used in automotive welding fixtures for part presence verification, packaging equipment for cap/can counting, and elevator systems for floor level sensing. The sensor s compatibility with standard industrial voltages makes it suitable for retrofitting existing equipment or designing new control circuits. Its non-contact principle eliminates bounce issues common in mechanical limit switches.41822
接近開(kāi)關(guān)LJ18A3-8Z-BX直流三線NPN常開(kāi)交流型接近開(kāi)關(guān)
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