D-A73磁性开关/价格/生产厂家/

产品概述

D-A73磁性开关是一种采用磁感应原理工作的工业自动化元件，广泛应用于机械设备、输送系统及气动装置中，用于检测气缸活塞位置或金属物体的接近信号。该产品通过内置磁簧管实现触点开合，结构紧凑且抗震性强，适合在震动较大的环境中稳定工作。其典型特性包括LED指示灯设计、直接出线式接线方式（导线长度可选0.5m/3m/5m），以及纵向或横向安装的灵活性。19

核心功能与优势

D-A73磁性开关采用触点磁簧管型设计，支持5~240V AC/DC宽电压范围，开关电流为100mA，感应灵敏度达60Gs。产品具备IP67防护等级，可在-10~70℃环境下稳定运行。其优点包括安装简便（通过紧定螺钉固定）、抗震性能优异，且内置红色LED可直观显示工作状态。适用于皮带输送机、自动化生产线等场景，能有效提升设备的位置检测精度。使用时需注意避免直接连接电源，需串联负载（如继电器）以保护开关寿命。129

价格与供应

根据市场数据，D-A73磁性开关的零售单价区间为35~84元人民币，具体价格因采购量、导线长度（如标准0.5m或加长3m/5m）及供应商而异。例如，阿里巴巴平台现货批发起批价为35元/个（≥1个），而SMC原装型号D-A73H的单价为84元。供应商通常提供2天内发货服务，批量采购可协商折扣。主要货源来自中国江苏、山东等地的自动化设备制造商，如上海双旭电子、山东卓信机械等。246

生产厂家信息

国内主要生产商包括上海双旭电子有限公司（专注磁性开关系列产品）、苏州立业自动化科技有限公司（提供SMC原装型号），以及山东卓信机械有限公司（主营工业传感器）。这些企业拥有多年行业经验，产品覆盖D-A73、D-Z73、D-A93等系列，支持定制化服务。部分厂商如台湾AOTAI也提供同类产品，其型号兼容性强，适用于进口设备替换。供应商通常通过电商平台（如1688、淘宝）或直销渠道提供服务，确保现货供应。1711

English Introduction

Product Overview

The D-A73 magnetic switch is an industrial automation component utilizing magnetic induction technology, designed for detecting piston positions in cylinders or metal object proximity in machinery and conveyor systems. It features a reed contact mechanism enclosed in a compact housing with vibration-resistant construction, suitable for harsh environments. Key specifications include LED status indicators, direct wiring options (cable lengths: 0.5m/3m/5m), and flexible longitudinal/transverse mounting. 912

Key Features

This switch operates on a 5~240V AC/DC wide voltage range with a 100mA switching current and 60Gs sensitivity. Its IP67-rated housing ensures reliability in temperatures from -10°C to 70°C. The product excels in easy installation (via built-in screws), shock resistance, and visual operation feedback via red LEDs. Typical applications include automated production lines and pneumatic systems. Note: Always connect in series with a load (e.g., relay) to prevent damage. 912

Pricing & Availability

Market prices range from $5 to$12 USD per unit (wholesale rates start at $5 for ≥1 unit). Variations depend on cable length and supplier terms. Major Chinese suppliers like Shanghai Shuangxu Electronic and Shandong Zhuoxin Machinery offer bulk order discounts, with delivery within 2 working days. SMC-branded models (e.g., D-A73H) are priced higher at$12 USD. 24

Manufacturers

Leading manufacturers include Shanghai Shuangxu Electronic Co. (specialized in magnetic switches), Suzhou Liye Automation (authorized SMC distributor), and Taiwan-based AOTAI (known for cross-model compatibility). These providers support OEM services and distribute through platforms like Alibaba or direct sales. 1711

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