iStir 50L High-Capacity Digital Magnetic Stirrer
iStir 50L High-Capacity Digital Magnetic Stirrer
Powerful and precisely controlled magnetic stirring for volumes up to 50 litres
The iStir 50L is a high-capacity digital magnetic stirrer designed for reliable mixing of liquid volumes up to 50 litres. Combining a powerful brushless DC motor with microprocessor control, it provides consistent stirring performance while requiring minimal routine maintenance.
Its stainless-steel setup plate provides a durable, corrosion-resistant working surface. Programmable pulse operation, selectable acceleration rates and an extended timer make the iStir 50L suitable for demanding laboratory, production and industrial mixing applications.
The powerful magnetic drive allows suitable liquids to be mixed without inserting a rotating shaft or impeller into the vessel, helping to simplify cleaning and reduce potential sample contamination.
Key Features
- Maximum stirring capacity of 50 litres
- 100–1,000 RPM adjustable speed range
- Speed accuracy of approximately ±10 RPM
- Maintenance-free brushless DC motor
- Microprocessor-controlled operation with digital display
- Selectable acceleration rates from A1 to A9
- Programmable pulse operation with direction reversal
- Extended timer up to 99 hours and 59 minutes
- Continuous operating mode for untimed applications
- Power-interruption recovery mode
- Electronic overload protection
- Corrosion-resistant stainless-steel setup plate
- Closed, easy-to-clean housing with IP21 protection
- Optional support frame and remote control pendant
Controlled Acceleration for Stable Mixing
Nine selectable acceleration settings allow the operator to control how quickly the stirrer reaches its programmed speed. The gentler settings help minimise splashing and maintain stir-bar coupling in larger vessels, while faster acceleration can be selected where rapid circulation is required.
Programmable Pulse Mode
Pulse mode alternates the direction of stirring between clockwise and counter-clockwise rotation. The pulse interval can be programmed between 30 and 300 seconds, helping to break up persistent flow patterns, reduce settling and improve mixing uniformity.
Power and Overload Protection
When power-interruption mode is selected, the stirrer retains the operating parameters and can resume the remaining programme following restoration of the electrical supply. Built-in overload protection helps protect the drive system if excessive demand is detected.
Typical Applications
- Preparation of large batches of laboratory reagents and buffers
- Mixing culture media and aqueous solutions
- Pharmaceutical and cosmetic formulation work
- Chemical and industrial process development
- Environmental and water-testing laboratories
- Dissolving powders, salts and other soluble materials
- Research, pilot-scale and quality-control applications
Technical Specifications
| Maximum stirring capacity | 50 litres |
| Number of stirring positions | 1 |
| Motor type | Brushless DC motor |
| Speed range | 100–1,000 RPM |
| Speed accuracy | Approximately ±10 RPM |
| Timer | 1 minute to 99 hours 59 minutes, or continuous |
| Acceleration settings | A1–A9 selectable rates |
| Pulse mode | Programmable, 30–300 seconds with direction change |
| Display | Digital LED display |
| Setup plate material | Stainless steel |
| Setup plate dimensions | 215 × 294 mm |
| Recommended stir-bar length | 80 mm |
| Protection class | IP21 |
| Overall dimensions | Approximately 393 × 267 × 105 mm |
| Net weight | Approximately 5.5 kg |
| Power supply | 100–240 V AC, 50/60 Hz |
Available Accessories
- SF Support Frame – helps support and position a large mixing vessel
- R1 Remote Pendant – remote control of operating functions
- B2 Magnetic Stir Bar – 80 mm length for 50-litre applications
Stirring performance depends on vessel geometry, liquid viscosity, fill volume and stir-bar selection. Please contact Auckland Scientific with your application details so that we can help confirm suitability and recommend the appropriate accessories.
Product images are illustrative. Specifications may be updated by the manufacturer without notice.