High-Precision Digital Magnetic Stirrers & Hotplate Stirrers

As a premier ISO-certified B2B manufacturer of general laboratory equipment, Hangzhou Qiwei Instrument Co., Ltd. produces commercial-grade Magnetic Stirrers and Hotplate Stirrers engineered for chemical synthesis, biological sample preparation, pharmaceutical R&D, and environmental analysis laboratories.

Equipped with maintenance-free brushless DC motors, ceramic or aluminum alloy top plates, and microcomputer PID temperature control, our magnetic stirrers provide smooth speed regulation (up to 2000 RPM) and uniform thermal transfer up to 380°C/550°C.

Get Bulk Wholesale Quote Download Stirrer Specification

Digital Magnetic Stirrer
Model: CL-R
Timing Function: No
Displayer: No
Speed: 0-1600 rpm
Mini Digital Magnetic Stirrer
Model: M-CL
Timing Function: No
Charging Function: No
Speed Range: 0-1800 rpm
High Power Magnetic Stirrer
Model: QW-DC-24ST
Product Features: Benchtop
Speed Range: 200 - 1300 rpm
Timing Range: 0 - 9999 min
Digital Heating Magnetic Stirrer
Model: SCL-RC+
Timing Function: No
Speed Range: 0–1600 rpm
Stirring Volume: 10–1000 ml

Explore Our Magnetic Stirrer Series

Versatile fluid mixing and heating solutions tailored for precision laboratory agitation and high-throughput research workflows.

1. Digital Hotplate Magnetic Stirrers

High-performance hotplate stirrers featuring chemical-resistant ceramic top plates, digital LED/LCD displays, external Pt1000 sensor compatibility, and over-temperature safety protection.

Heating Temperature: Ambient to 380°C / 550°C ($\pm 1^\circ C$)
Stirring Speed: 100 to 1500/2000 RPM
Maximum stirring volume up to 20L

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2. Standard Non-Heating Magnetic Stirrers

Compact and energy-efficient benchtop magnetic stirrers designed for general solution mixing, titration support, and biological liquid agitation without thermal input.

Durable stainless steel or ABS plastic housing
Stepless speed adjustment control knob
Ultra-quiet motor with high torque coupling

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3. Multi-Position Magnetic Stirrers

Multi-channel stirring plates (4, 6, 10, or 12 positions) engineered for high-throughput parallel sample processing, screening assays, and batch chemistry testing.

Synchronized speed control across all mixing channels
Silicon anti-slip top plate protection mat
Ideal for high-volume routine lab analysis

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Critical Industrial Applications & Engineering Strengths

Where Magnetic Stirrers Are Deployed

Magnetic stirring is the standard method for non-contact liquid mixing in chemistry and life sciences. Key application fields include:

Chemical Synthesis & R&D: Precise thermal control during boiling, distillation, and reaction mixing
Pharmaceutical & Biological Testing: Preparing media solutions, buffer preparation, and sample dissolution
Environmental Water Analysis: Reagent mixing alongside our Water Quality Testing Equipment and pH Meters
Food & Cosmetics Quality Control: Emulsification screening and routine quality testing

Qiwei Manufacturing & OEM Advantages

Supporting global laboratory equipment suppliers, scientific dealers, and brand owners:

Strong NdFeB Magnetic Drive: High magnetic coupling prevents stir bar decouple even at high viscosity or rapid RPM
PID Smart Thermal Control: Fast heating ramps with zero overshoot for delicate thermal samples
OEM & ODM Customization: Custom housing colors, private-label branding, customized plug/voltage (110V/220V), and tailored top plates
Internal Links: Explore our General Laboratory Equipment, COD Reactors, and Electrochemical Instruments for complete lab setup.

Frequently Asked Questions (Magnetic Stirrer Sourcing Guide)

Q1: What is the advantage of ceramic top plates versus aluminum alloy plates?

Ceramic top plates offer exceptional resistance to strong acids, alkalis, and organic solvents, as well as higher maximum temperatures (up to 550°C). Aluminum alloy plates provide superior thermal conductivity and fast, uniform heat distribution across the surface at lower to moderate temperatures (up to 380°C).

Q2: Can Qiwei hotplate stirrers accept external temperature sensors?

Yes! Our digital hotplate magnetic stirrers support connecting an external Pt1000 temperature probe directly inserted into the liquid sample, allowing direct precision temperature feedback control ($\pm 0.2^\circ C$).

Q3: Do you support OEM custom branding and wholesale distributor pricing?

Yes, as a factory-direct manufacturer, we offer complete OEM/ODM custom branding, customized UI panels, private label packaging, and tiered volume discounts for global laboratory suppliers.

Require Factory Direct Pricing or Custom Magnetic Stirrers?

Get in touch with Hangzhou Qiwei Instrument today for technical consultation, plate options, and competitive distributor pricing within 24 hours.

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Hangzhou Qiwei Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of magnetic stirrer in China, featured by quality products and good service. Please rest assured to buy bulk durable magnetic stirrer in stock here from our factory. We also accept customized orders.

Digital Magnetic Stirrer, High Power Magnetic Stirrer