The JOANLAB HS-Max is a digital heating magnetic stirrer that heats and mixes laboratory liquids at the same time on a ceramic-coated aluminium alloy hot plate. It heats from room temperature up to 310°C, stirs from 50 to 1500rpm, and is available in four models covering 2L, 5L and 10L maximum mixing capacity. A PT1000 external temperature probe, 9-program memory, 1min–12h timer and one-key lock make it a constant temperature laboratory stirring plate suited to repeatable, unattended work.
Why Choose This Laboratory Hot Plate Magnetic Stirrer
- Precise constant temperature control: Liquid temperature accuracy of ±1°C with the PT1000 probe, and ±3°C on the panel sensor.
- Repeatable results: Store up to 9 groups (P1–P9) of time and speed settings and recall them with the P key.
- Safer experiments: One-key lock prevents accidental changes, and a residual heat warning shows when the plate is still hot.
- Chemical-resistant work surface: Aluminium alloy disc with ceramic coating resists corrosion and is easy to wipe clean.
- Four sizes, one control layout: Choose 2L, 5L or 10L capacity without retraining staff.
Key Features of the HS-Max Electromagnetic Mixer
Two Ways of Thermometry
A built-in panel sensor and an external liquid probe control plate temperature and liquid temperature independently. With the probe connected, the display shows real-time liquid temperature; with the probe removed, it shows the plate surface temperature. Units switch between °C and °F.
Program Memory and Countdown Timer
Nine programmable sets hold processing time and speed. The timer runs from 1 minute to 12 hours, with two countdown modes: start counting when the set temperature is reached, or start as soon as the unit runs. Fast and slow heating-rate and speed-ramp modes are selectable.
Digital Display With Knob and Button Control
The display shows set and real-time temperature, set and real-time speed, time, heating sign, lock flag and probe connection mark together. Two knobs control temperature and speed; touch-illuminated keys handle program, lock and timing.
Three-Hole Probe Clamp and Support Stand
The movable cross clamp and three-hole probe holder accept the temperature probe plus a pH meter or other sensor at the same time.
Technical Specifications
| Specification | HS-5Max | HS-6Max | HS-8Max | HS-10Max |
|---|---|---|---|---|
| Brand | JOANLAB | |||
| Max. mixing capacity | 2L | 2L | 5L | 10L |
| Speed range | 50–1500rpm | 50–1500rpm | 50–1500rpm | 50–1200rpm |
| Working disc size | Φ135mm (round) | 135×135mm | 160×160mm | 200×200mm |
| Magnet (stir bar) size | 30mm | 30mm | 40mm | 50mm |
| Heating power | 300W | 300W | 500W | 800W |
| Product size | 270×160×80mm | 270×160×80mm | 310×190×80mm | 380×240×90mm |
| Working disc temperature | Room temperature – 310°C | |||
| Timing range | 1min – 12h | |||
| Control mode | Digital display + button + knob | |||
| Disc material | Aluminium alloy with ceramic coating | |||
| Temperature sensor | PT1000 | |||
| Liquid temperature accuracy | ±1°C | |||
| Panel temperature accuracy | ±3°C | |||
| Program memory | 9 groups (P1–P9) | |||
| Voltage | AC 110V / 220V (confirm required voltage when ordering) | |||
| Condition | New | |||
Which HS-Max Model Do You Need?
- HS-5Max: Round Φ135mm plate, 2L, 300W compact bench stirring of beakers and flasks.
- HS-6Max: Square 135×135mm plate, 2L, 300W more contact area for square or multiple small vessels.
- HS-8Max: 160×160mm plate, 5L, 500W medium batches and larger beakers.
- HS-10Max: 200×200mm plate, 10L, 800W large-volume heating and mixing.
Typical Applications
- Buffer, reagent and culture media preparation
- Dissolving solids and maintaining solutions at constant temperature
- Titration, pH adjustment and sample preparation with a probe in the vessel
- Chemistry, biology, pharmaceutical, food and teaching laboratories
What Is in the Box
- Hot plate magnetic stirrer (selected model)
- Stir bar
- Support bracket rod
- Cross clamp
- Probe clamp rod
- PT1000 temperature probe
- Instruction manual
Frequently Asked Questions
What is the maximum temperature of the JOANLAB HS-Max heating magnetic stirrer?
The working disc heats from room temperature up to 310°C on all four models.
What is the difference between HS-5Max, HS-6Max, HS-8Max and HS-10Max?
They differ in plate size, capacity and power: HS-5Max is Φ135mm round, 2L, 300W; HS-6Max is 135×135mm, 2L, 300W; HS-8Max is 160×160mm, 5L, 500W; HS-10Max is 200×200mm, 10L, 800W with a 50–1200rpm speed range.
How accurate is the temperature control?
Liquid temperature accuracy is ±1°C when the PT1000 probe is in the liquid. Panel (plate surface) accuracy is ±3°C.
Can the stirrer run unattended on a timer?
Yes. The timer is adjustable from 1 minute to 12 hours, and the countdown can start either when the set temperature is reached or immediately when the unit starts.
Can I save my stirring settings?
Yes. Up to 9 groups of time and speed settings can be stored as programs P1–P9 and recalled with the P key.
Does it show the temperature in Fahrenheit?
Yes. The display can be switched between °C and °F.
Is the hot plate surface resistant to chemicals?
The working disc is aluminium alloy with a ceramic coating, which resists chemical corrosion.
Related Laboratory Equipment
Compare other stirrers and bench consumables: the JOANLAB HS8 5L Magnetic Stirrer Hot Plate, the JOANLAB HS5 2L Magnetic Stirrer With Heating, the HS5 Thermostatic Magnetic Stirrer Hot Plate, the JOANLAB Adjustable Autoclavable Micropipette and Microscope Cover Glass Slides 18x18mm.
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