Overview
Micro magnetic racks are precision tools used in laboratories for small-volume magnetic separation applications. They employ powerful neodymium magnets arranged to generate a focused magnetic field, enabling the isolation of magnetic bead-bound biomolecules from微量 samples (typically 0.2–2 mL). These racks are indispensable in modern molecular workflows, particularly for next-generation sequencing, PCR cleanup, and immunoprecipitation. Their compact size and specialized tube holders minimize sample loss while maximizing reproducibility, making them a staple in life science research and diagnostics.
Structure and Working Principle
A standard micro magnetic rack consists of a polymer base with precisely positioned magnets beneath each tube holder. The magnets create a radial magnetic field that pulls magnetic beads toward the tube walls, allowing clear supernatant removal via pipetting. Advanced designs feature adjustable magnet positions or removable inserts to accommodate different tube types (PCR strips, 96-well plates). Some models incorporate dual-side magnets for faster separation. The working principle relies on paramagnetic bead technology, where coated beads bind target molecules and respond to the rack's magnetic field within 30–60 seconds.
Key Features
High-gradient magnetic fields (up to 1.2 Tesla) ensure rapid and complete bead capture, even for viscous samples. Many racks include color-coded holders for easy sample tracking and are autoclavable (up to 121°C) for sterility. Ergonomic designs often feature non-slip feet and stackability for space-efficient storage. Premium models offer modular configurations, allowing customization for specific protocols like high-throughput screening or single-cell analysis. UV-resistant materials prevent degradation in cleanroom environments.
Application Areas
Primary applications include nucleic acid extraction (plasmid DNA, miRNA), protein purification (His-tag, antibody-conjugated beads), and cell sorting (CD marker-based isolation). They're critical in CRISPR workflows for guide RNA cleanup and in IVD kit manufacturing. In industrial settings, micro magnetic racks enable quality control testing of biologics by isolating specific analytes from small-volume production samples. Their precision supports microfluidics integration, where handling微量 samples is paramount.
Maintenance and Precautions
Regularly inspect magnets for corrosion (especially in humid environments) and clean holders with 70% ethanol. Avoid exposing racks to temperatures above 80°C for extended periods to prevent magnet demagnetization. Store away from sensitive equipment like mass spectrometers or pacemakers. For BSL-2 work, decontaminate with 1% sodium hypochlorite before reuse. Note that prolonged magnet-tube contact (>30 mins) may heat samples slightly—monitor temperature-sensitive reactions accordingly.
B2B Procurement Guide
Bulk buyers should verify magnet specifications (e.g., N52-grade neodymium) and request certifications for ISO 13485 compliance if used in medical devices. Consider racks with barcoding compatibility for automated systems. Leading manufacturers offer OEM customization for private-label branding, including magnet repositioning or custom tube geometries. MOQs typically start at 100 units, with bulk discounts available. For reference, a 50-unit order of standard 8-tube racks averages $75–$120 per unit, depending on magnet configuration.
Related Manufacturers
- 主营：[]
- 主营：磁力锁、出门开关、电锁电源、磁力架、智能门禁卡、高级门禁机、电锁口、电磁门吸、多场景门禁系统、防水磁力锁
- 主营：袋式过滤器、烛式过滤器、板框过滤器、磁力架、精密过滤器、层叠过滤器、PPH过滤器、钛棒过滤器、篮式过滤器、气体液体过滤器、PEPA微孔精密过滤器、玻璃钢过滤器、自动清洗过滤器、大流量滤芯过滤器、粉末烧结滤芯、钛滤芯、不锈钢烧结滤芯、不锈钢丝网折叠滤芯、烧结毡滤芯、pp折叠滤芯、刮刀过滤器、刷式过滤器、钛棒滤芯、正压过滤器、叶片过滤器、磁性过滤器
- 主营：研磨仪、组织研磨仪、手持式研磨仪、磁珠磁力架、均质器、毛发研磨仪、金属浴、水浴锅、涡旋振荡器、匀浆机、真空离心浓缩仪、高压均质机、非接触DNA打断仪、单细胞悬液制备仪
- 主营：钕铁硼、钐钴、高温磁铁、磁力架、异性永磁、烧结永磁、粘结永磁、异型磁钢、耐温磁铁、磁棒、磁性组件、电机磁瓦、圆形磁铁、磁石、传感磁铁、铝镍钴、铁氧体、除铁器、磁瓦、注塑磁铁、异性磁铁、磁钢、吊环磁铁、异形钕铁硼磁钢、钕铁硼强磁
- 主营：移液器、离心机、搅拌器、磁力架怎么用、天平、金属浴、显微镜、摇床、培养箱、定氮仪、分光光度计、基因导入仪、旋转蒸发仪、基因扩增仪、水浴锅、氮吹仪、加热板、超声波破碎、浓缩仪、气相色谱仪、冷冻干燥机、蛋白检测仪、蛋白纯化仪、荧光计、静电纺丝机
- 主营：水平仪、光滑塞规、焊接平台、磁力架、铸铁地轨、铸铁方箱、铸铁方尺、铸铁平台、键槽塞规、工字卡板、检验平台、防震垫铁、测量平台、机械滑台、光滑环规、划线平台、床身铸件、对弧样板、等高垫块、螺纹环规、铸铁v型架、铸铁直角尺、花岗石平台、大理石方箱、大理石平尺、大理石平台
- 主营：抽屉式除铁器、管道式除铁器、除铁器、强磁磁力架、除铁设备
- 主营：钕铁硼、强力磁铁、专用磁铁、磁力架、立式磁力、小磁铁片、带孔磁铁、圆形磁铁、五金磁铁、永磁吸盘、包装磁铁、磁业磁力、高温磁钢、圆形磁钢、冰箱贴软磁、黑色铁氧体、铝镍钴永磁、圆形强磁铁、磁力耦合器、永磁起重器、铝镍钴磁铁、软磁铁氧体、电动搅拌机、带开关磁座、铁氧体磁钢、铁氧体磁铁
- 主营：强磁棒、抽屉式除铁器、浆料除铁器、磁力架、管道式除铁器、旋转式除铁器、气动式除铁器、电磁浆料除铁器、电磁干粉除铁器、自卸式悬挂式除铁器、滚筒式磁选机、磁力棒、全自动旋转除铁器、强磁过滤器、磁棒、磁格栅
- 主营：螺旋磁管、异形磁环、水处理磁件、磁力架、吸波材料、抗金属磁片、隔磁片、导磁材料、刷卡机磁片、传感器磁环、磁性材料、软磁材料、大磁环、无线充电磁片、RFID磁片、高频磁环、钻井磁棒、钻头磁棒、槽沟磁棒、沟槽磁棒、钻井磁环、钻探磁环、地探磁环、超大工字磁芯、管状磁环、管状铁氧体磁环
- 主营：磁性材料卡、磁性标签、高品质仓储笼、磁力架、定制仓储笼、金属钢托盘、玻璃钢格栅盖板、强磁性标识牌、仓库卡磁吸标牌、全磁板磁性标签、仓储笼、不锈钢托盘、折叠仓储箱、仓储标识牌、仓库标识牌、可折叠仓储笼、设备标签牌、周转箱、带轮磁性卡片、金属箱式托盘、折叠卡板箱、库房货架标签、防渗漏塑料托盘、工正牌、物资分类卡片、金属周转箱
- 主营：矿用风门、钻孔轨迹仪、钻孔定向仪、磁力架、测斜仪、矿用钢丝绳探伤仪、矿用掘进机、矿用采煤机、矿用装载机、刮板机、输送机、给煤机、绞车、矿车、混凝土搅拌机、混凝土输送泵、喷浆机、履带钻机、潜孔钻机、单体液压支柱、防爆风机、钻孔成像仪、铁路钢轨、变压器、螺旋支柱
- 主营：矿用设备、铁路设备、救援设备、磁力架、防爆电器、仪器仪表、路面机械、工程机械
- 主营：冷冻研磨仪、冷冻研磨机、组织研磨仪、多样品组织研磨仪、多样品组织冷冻研磨机、全自动样品快速研磨仪、高通量多样品组织研磨仪、土壤球磨仪、高通量组织研磨机