LJ1A-220B 接近開關(guān)產(chǎn)品介紹（中英雙語）
【中文版】
LJ1A-220B 接近開關(guān)是一款高性能非接觸式檢測裝置，采用電磁感應(yīng)原理設(shè)計(jì)，適用于工業(yè)自動化控制系統(tǒng)中金屬物體的精確探測。產(chǎn)品以穩(wěn)定可靠的檢測性能和便捷的安裝特性，廣泛應(yīng)用于機(jī)械制造、汽車生產(chǎn)線、智能倉儲等領(lǐng)域。
本產(chǎn)品配備堅(jiān)固的工程塑料外殼，表面經(jīng)過特殊工藝處理，具備良好的抗沖擊性和耐腐蝕性。緊湊的結(jié)構(gòu)設(shè)計(jì)（直徑18mm，長度55mm）可適應(yīng)狹小空間安裝需求，IP67防護(hù)等級有效抵御粉塵侵入和短時水浸影響。檢測距離達(dá)2mm（鐵質(zhì)材料），響應(yīng)時間小于1ms，能夠快速識別目標(biāo)物的位置變化。
LJ1A-220B 采用三線制接線方式（棕線+24V，藍(lán)線0V，黑線信號輸出），支持NPN/PNP兩種輸出類型可選。寬電壓設(shè)計(jì)（10-30V DC）可適配多種控制系統(tǒng)，內(nèi)置反向極性保護(hù)和短路保護(hù)功能，有效提升設(shè)備運(yùn)行安全性。LED狀態(tài)指示燈可實(shí)時顯示工作狀態(tài)，便于現(xiàn)場調(diào)試和維護(hù)。
產(chǎn)品工作溫度范圍覆蓋-25℃至+70℃，特殊密封工藝確保在油污、振動等復(fù)雜工業(yè)環(huán)境中穩(wěn)定運(yùn)行。鍍金觸點(diǎn)設(shè)計(jì)有效降低接觸電阻，延長電氣壽命。安裝方式支持齊平式或非齊平式選擇，可靈活適配不同應(yīng)用場景。
典型應(yīng)用包括：
• 自動化生產(chǎn)線定位檢測
• 機(jī)床刀具位置監(jiān)控
• 傳送帶物體計(jì)數(shù)系統(tǒng)
• 機(jī)器人末端執(zhí)行器狀態(tài)確認(rèn)
• 包裝機(jī)械安全防護(hù)裝置
【English Version】
LJ1A-220B Proximity Switch is a high-performance non-contact detection device based on electromagnetic induction principle, designed for accurate metal object detection in industrial automation systems. With reliable sensing capabilities and easy installation features, it is widely used in machinery manufacturing, automotive production lines, and intelligent warehousing applications.
Encased in a robust engineering plastic housing with special surface treatment, the device demonstrates excellent impact resistance and corrosion resistance. Its compact dimensions (18mm diameter, 55mm length) enable installation in confined spaces, while IP67 protection rating ensures reliable operation against dust ingress and temporary water immersion. Offering a 2mm detection range (for ferrous materials) and sub-1ms response time, it delivers swift recognition of target position changes.
The LJ1A-220B features three-wire connection (brown +24V, blue 0V, black signal output) with selectable NPN/PNP output configurations. Wide voltage compatibility (10-30V DC) allows integration with various control systems, while built-in reverse polarity protection and short-circuit protection enhance operational safety. The integrated LED status indicator provides real-time working status visualization for efficient field debugging and maintenance.
Operating within -25℃ to +70℃ temperature range, the device employs specialized sealing technology to ensure stable performance in challenging industrial environments containing oil contaminants and vibrations. Gold-plated contacts minimize electrical resistance and extend service life. Both flush and non-flush mounting options are available to accommodate diverse application requirements.
Typical applications include:
• Positioning detection in automated production lines
• Machine tool position monitoring
• Conveyor belt object counting systems
• Robotic end-effector status verification
• Safety protection devices for packaging machinery
This product combines precision engineering with durable construction, delivering consistent performance for industrial automation applications requiring accurate proximity sensing solutions.
