Overview
A laboratory electric motor is a specialized device designed for controlled mechanical motion in experimental and industrial settings. Unlike standard industrial motors, these units prioritize precision, adjustability, and safety for educational and research purposes. They are commonly used in physics classrooms to demonstrate electromagnetic principles, in engineering labs for prototyping, and in industrial quality control testing. The compact design allows for easy integration into experimental setups while providing reliable performance under variable load conditions.
Structure and Working Principle
The laboratory motor typically consists of a rotor with copper windings, a stator with permanent magnets or electromagnets, and a commutator-brush system for DC models. AC variants may use induction principles without brushes. When electrical current passes through the windings, it creates a magnetic field that interacts with the stator's field, causing rotational motion. The speed can be controlled by adjusting voltage (for DC motors) or frequency (for AC motors), while torque depends on current flow and magnetic field strength.
Key Features
Precision speed control is a hallmark feature, often allowing adjustments from near-zero to several thousand RPM. Many models include torque measurement scales or interfaces for data logging. Compact size (typically 5-20cm in diameter) makes them ideal for bench-top experiments. High-quality versions offer low vibration and noise characteristics critical for sensitive measurements. Some advanced models incorporate regenerative braking for energy recovery studies.
Application Areas
In education, these motors demonstrate Faraday's law, Lenz's law, and electromechanical energy conversion. University labs use them for mechatronics research and control system experiments. Industrial applications include small-scale prototype testing, conveyor system simulations, and quality assurance checks. Electronics manufacturers employ them for testing device durability under controlled mechanical stress conditions.
Maintenance and Precautions
Regular maintenance involves brush replacement (for DC motors), bearing lubrication, and commutator cleaning. Always disconnect power before servicing. Prevent overheating by ensuring adequate ventilation and never exceeding rated current. Use proper electrical insulation and grounding to avoid shocks. Store in dry conditions to prevent corrosion of electrical contacts.
B2B Procurement Guide
For bulk purchases, verify motor specifications match your voltage standards (commonly 12V DC or 110/220V AC). Request certification documents for educational compliance if needed. Consider suppliers offering customization like shaft modifications or integrated sensors. Compare warranty terms (typically 1-3 years) and after-sales support for calibration services. Lead times vary from stock availability to 8 weeks for specialized units.
Related Manufacturers
- 主营：搅拌罐、混合机、化工搅拌机、2L实验室行星搅拌机、卧式搅拌机、干湿粉混合、钴粉搅拌机、螺带混合机、卧式螺带混合机、单锥螺带混合机、单锥双螺旋混合机、无重力混合机、VC高速混合机、高速搅拌釜、锂电行业混合机、连续式混合机、卧式犁刀混合机、V型混料机、双桨混合机、三维运动混合机、槽型混合机、单维卧式混合机、V型混合机、卧式湿法球磨机、湿法球磨机、干法球磨机
- 主营：pvc一出、波纹管、50-110ppr、实验室混合机、110-400pe、pvc管材、塑料pvc、pvc高速、磁力架、切割机、牵引机、邦定机、打包带、配方机、扩口机、挤出机、混合机、堆放架、管材线、单螺杆、磨粉机、振动筛、pvc波纹、50-200cpvc、机械pp管、pp聚丙烯
- 主营：干燥机、干燥设备、膏状物料烘干机、实验室粉料搅拌机、二维混合机、三维混合机、空心桨叶干燥机、高速混合机、单锥螺带真空干燥机、热风循环烘箱、超微粉碎机、真空耙式干燥机、槽型混合机、双锥回转真空干燥机、电加热双锥回转真空干燥机、V型混合机、盘式干燥机、万能粉碎机、摇摆颗粒机、沸腾干燥机、旋转制粒机
- 主营：均质乳化机、真空乳化机、行星搅拌机、实验室乳化机、锡膏搅拌机、高速乳化机、高剪切乳化机、乳化分散均质机、凝胶均质乳化机、真空均质乳化机、双行星搅拌机、高速真空乳化机、均质机、高剪切分散乳化机、小型乳化机、真空均质罐、灌装机、半自动灌装机、硅酮胶灌装机、新能源材料混合机、行星混合机、行星动力搅拌机、硅胶搅拌机、化妆品均质乳化机
- 主营：反应釜、卧式混合机、分散机、实验室分散机、捏合机
- 主营：混凝土养护箱、干燥箱、移动养护室、建筑实验室设备、搅拌机、恒湿恒温养护箱、水泥养护箱、养护室、恒温恒湿、水泥抗折抗压一体机、养护设备、摩擦系数、控制系统、工业烤箱、弯曲试验机、试块压力机、数显压力机、自动压力机、鼓风高温烘干箱、水泥胶砂搅拌机、水泥压力机、水泥振动台、全自动压力试验机、电动击实仪
- 主营：真空乳化机、真空均质机、行星搅拌机、电动机、双行星搅拌机、乳化机、均质机、真空均质乳化机、全自动灌装封尾机、半自动灌装封尾机、高剪切乳化机
- 主营：熔炼设备、真空造粒设备、铸锭设备、电动机、连续铸造设备、金属雾化制粉设备、真空加压铸造设备、熔金炉、熔金机、贵金属造粒机、连续铸造机、倒模机、压片机、真空铸锭机、光谱仪、气动打标机、贵金属熔炼炉、金属制粉机、贵金属制粉机、黄金制粉机、白银制粉机、水雾化制粉机、银制粉机
- 主营：试验机、冲击试验机、万能试验机、电动机、拉力试验机、弯曲试验机、压力试验机、扭转试验机、持久蠕变试验机、低温仪、缺口拉床、缺口投影仪、专用试验机、摩擦磨损试验机、杯突冲杯试验机、液压拉床、拉伸标距仪、高温炉、缺口制样机
- 主营：边压强度测试仪、跌落机、氙灯老化箱、电动机、恒温恒湿机、uv老化测试箱、密封性测试仪、拉力测试仪器、盐雾试验机、taber磨耗机、冲击试验机、影像测量仪、恒温恒湿一体机、酒精耐磨试验机、模拟汽车运输振动台、马丁代尔耐磨仪、针焰试验仪、垂直水平燃烧试验机、按键寿命试验机、插拔力试验机、跌落试验机、跌落试验台、燃烧试验箱、汽车内饰燃烧试验机、taber耐磨试验、耐破度测试仪
- 主营：棒销式纳米砂磨机、双动力纳米砂磨机、新能源专用纳米砂磨机、实验室砂磨机、立式纳米砂磨机、盘式超细砂磨机、干法研磨机、行星搅拌机、三辊机、珠磨机、釜与罐、真空均质乳化机组、分散搅拌设备、成套生产线、灌装机
- 主营：分析仪、气候箱、加湿器、电动机、测定仪、磨平机、液限仪、点荷仪、定硫仪、土工布、引伸仪、测试仪、试验箱、网格布、测斜仪、波纹管、触探仪、检测仪、白度仪、试验机、搅拌机、收缩皿、厚度仪、回弹仪、抗渗仪、测试箱
- 主营：动压管、风压管、全压管、实验室用粉末压片机、风速仪、风速管、皮托管、高速风表、管道测风、机械通风、标准防堵、智能热球、矿用电子、风速风压仪、风速风向仪、风速报警仪、风压风量仪、传感去电压、扬尘监测仪、压力风量仪、风向传感器、风向风速计、离子检测仪、矿用高速风、风速测量仪、电动喷雾器
- 主营：养护箱、混泥土、雷氏夹、电动机、水泥胶、脱模器、渗透仪、摆仪-92a、溢流水箱、土壤水份、抗折试模、水泥细度、混凝土标准恒温恒湿养护设备、集装箱养护室、水泥胶砂搅拌机、马歇尔电动击实仪、水泥抗折抗压一体机、沥青旋转薄膜烘箱、沥青混合料车辙试验仪、电热恒温鼓风干燥箱、路面材料强度试验仪、沥青含量测定仪、混凝土单卧轴搅拌机、贝克曼梁路面弯沉仪、含量快速测定仪、钢筋弯曲试验机
- 主营：混合器、反应仪、制冰机、电动机、金属浴、混匀仪、培养箱、超声波、水浴锅、均质仪、离心机、振荡器、均质袋、恒温槽、耳温计、振荡仪、反应器、匀浆机、均质机、脱色摇床、高温循环、氮气吹扫、智能恒温、平滑肌槽、水平旋转、干式恒温