MAGD19 Digital Hotplate Magnetic Stirrer LCD display

COLO.Science · Shakers & Mixers · Magnetic stirrers

MAGD19 hotplate magnetic stirrer — ceramic plate 190 × 190 mm, RT+5 to 380 °C, 0–2000 rpm

The MAGD19 is a digital hotplate magnetic stirrer for precise temperature control when heating and stirring laboratory media. A chemical-resistant ceramic hotplate of 190 × 190 mm, digital PID regulation with Auto Tuning and Pt100 A Class temperature sensing — on the plate surface or directly in the liquid — make it a repeatable bench instrument for heating from RT+5 °C to 380 °C and stirring up to 20 L at 0–2000 rpm. Product code PRO2609.

Why a hotplate magnetic stirrer with digital PID and Pt100 sensing

A hotplate magnetic stirrer heats the vessel from below while a rotating magnetic field turns the stirring bar in the liquid, so the heat that enters through the bottom of the vessel is distributed through the whole volume. How well the temperature is held then depends on the controller. Simple on/off heating overshoots; the MAGD19 uses digital PID regulation, which brings the medium to the set temperature and holds it there without overheating, and Auto Tuning re-adjusts the controller when the vessel, the volume or the viscosity changes.

The second decisive point is where the temperature is measured. The MAGD19 hotplate magnetic stirrer can control on the plate surface — quick, and enough for routine dissolution — or in the medium with a Pt100 A Class probe, when the temperature of the liquid itself is the value the protocol prescribes. Together with the ceramic, chemical-resistant working surface and the separate heating button, that makes the MAGD19 a repeatable instrument for heating and stirring in research, QC and teaching laboratories.

Model, product code and identification

The MAGD19 hotplate magnetic stirrer is supplied as a single digital model. Quote and order with the COLO product code so the correct configuration is identified without ambiguity.

Operating functions

Temperature control and measurement

The digital controller regulates the hotplate with a PID algorithm, which prevents overheating of the medium. Two Pt100 A Class measuring points are available: the inner sensor in the plate and the outer sensor in the medium. The operator chooses whether the temperature is controlled on the hotplate surface or in the liquid. Auto Tuning self-adjusts the controller parameters to optimise the heating time and the PID response, and temperature deviation correction compensates the difference between the set and the measured value.

Stirring and timer

The motor-driven magnetic drive turns PTFE stirring bars of 30–80 mm at 0–2000 rpm, set in 10 rpm steps, and stirs up to 20 L of water. The timer limits a heating or stirring step to a defined time, so a dissolution or conditioning step runs the same way every time.

Display and controls

The backlit LCD shows the set and the actual values of temperature and speed, the time and an icon for heating. Temperature and speed are regulated with the knob on the front panel. The controller also offers an auto test function, PID settings, overheating protection and an alarm.

Hotplate, heater and safe operation

The working surface of the MAGD19 hotplate magnetic stirrer is ceramic with a chemical-resistant coating, durable under common laboratory reagents and easy to wipe clean. Under the plate, a Kanthal (FeCrAl) heater delivers 800 W, and the stirring drive is rated at 9 W. The operating surface is separated from the hotplate, which protects the controls against spilled liquid.

Heating has its own ON/OFF button, which prevents unintentional heating; a heat indicator shows when the plate is hot, and a safety warning is given at temperatures above 50 °C. The instrument has protection class IP42, runs on 230 V / 50–60 Hz, measures 203 × 344 × 94 mm and weighs 4 kg net (5 kg gross). It operates at ambient temperatures of 5–40 °C and humidity up to 80 % RH.

Standard delivery and options

• MAGD19 digital hotplate magnetic stirrer with ceramic plate 190 × 190 mm.
• P.I.D. control with Auto Tuning and backlit LCD (set and actual values).
• Stand rod and holder for the temperature probe (included).
• Optional: external Pt100 A Class temperature probe, Ø3 mm, L 250 mm, for measurement in the liquid.
• Optional: Wi-Fi temperature monitoring and control (availability depends on configuration).

COLO.Science can propose a hotplate magnetic stirrer configuration for a specific workflow. The delivered configuration for a specific order is the one confirmed in the COLO.Science quotation.

Catalogue, technical specification and international links

• MAGD19 hotplate magnetic stirrer — technical specification (PDF) — four pages, A4 landscape, with the full parameter, delivery and option tables.
• Magnetic stirrers — the magnetic stirrer category in the COLO shop.
• Shakers & Mixers overview — thermo shakers, orbital shakers, incubators, rockers, vortex mixers, roller and rotary mixers.
• Shakers & Mixers catalogue — model comparison by speed, temperature range and capacity.
• Shakers and mixers on COLO.Science — our international site.

Applications and operational value

In the preparation of buffers and reagents, the MAGD19 hotplate magnetic stirrer heats and mixes in one step. The PID controller brings the solution to the set temperature without overshoot, and the stirring bar keeps it homogeneous while salts and reagents dissolve. With the timer, a dissolution step takes the same time from batch to batch.

In quality control and analytical chemistry, sample conditioning depends on the temperature of the sample itself. Selecting measurement in the medium and using the external Pt100 A Class probe makes runs comparable between operators and between days. After a major change of load — a larger volume, a different vessel or a more viscous medium — Auto Tuning stabilises the control and reduces overshoot.

In teaching laboratories and for general heating and stirring, the separate heating ON/OFF button, the heat indicator and the warning above 50 °C reduce the risk of unintentional heating and burns, and the ceramic, chemical-resistant plate withstands everyday use. With heating switched off, the MAGD19 works as a plain magnetic stirrer at 0–2000 rpm.

Selection guide

• Volume and vessel. The MAGD19 stirs up to 20 L (water) on a 190 × 190 mm plate with PTFE stirring bars of 30–80 mm; check that the vessel base fits the plate.
• Temperature. The range is RT+5 °C to 380 °C with ±1 °C uniformity and ±3 °C stability; confirm that the target temperature of the protocol is inside it.
• Where the temperature is measured. For routine work, control on the plate surface; when the temperature of the medium is critical, order the external Pt100 A Class probe (Ø3 mm, L 250 mm).
• Speed. 0–2000 rpm, set in 10 rpm steps, so the speed can be matched to the vessel, the volume and the medium.
• Running time and monitoring. Use the timer for defined steps; if the temperature has to be followed remotely, ask about the Wi-Fi monitoring and control option.
• Other magnetic stirrers. For a different plate size or for stirring only, see the magnetic stirrers category.

Configuration notice

This page is provided for orientation and product selection. It does not replace the binding specification, the delivered configuration, the validation protocol or the acceptance criteria confirmed in the official COLO.Science quotation, proforma invoice or order confirmation. Confirm the vessel and volume, the target temperature, the temperature probe, the monitoring option and any certification requirement for the specific order. Specifications may change without notice. B2B prices are quoted net, excluding VAT.

Sales and support for international customers

COLO Lab Experts
Polje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.

Need help choosing a hotplate magnetic stirrer?

Contact COLO.Science with the vessel and the volume to be stirred, the target temperature, whether the temperature has to be measured in the medium and the required running time. We will propose the matching MAGD19 configuration and accessories (Pt100 probe, monitoring options).