They are designed to meet requirements of laboratories demanding wide flexibility of stirring operations. These stirrers are available in various models. The choice of model will be dependant on the batch size / volume to be stirred.
The Remi RQ-121 / D is an entry-level professional overhead stirrer designed for general laboratory mixing tasks. It is widely recognized for its high reliability and simplicity, making it the workhorse for educational institutions, quality control labs, and R&D centers. The "D" in its name signifies the digital speed indication, which provides precise control over stirring parameters, ensuring repeatable results for sensitive experiments. Built with a robust AC/DC universal motor, the RQ-121 / D delivers constant power to handle aqueous solutions and low-viscosity liquids with ease.
This stirrer features a hollow shaft design that allows for easy height adjustment of the stirring paddle, making it compatible with various vessel heights and volumes. The mechanical speed control is smooth and responsive, while the digital tachometer ensures you know the exact RPM at all times. Safety is prioritized with integrated overload protection and a durable epoxy-coated housing that resists chemical corrosion. Whether you are performing routine titration stirring or small-scale homogenization, the Remi RQ-121 / D provides the technical performance required at a cost-effective price point.
Technical Specifications
Stirring CapacityUp to 10 Liters (Water)
Speed Range50 to 2500 RPM
Speed ControlStepless Mechanical
Speed DisplayDigital LED Tachometer
Motor TypeAC/DC Universal Motor
Chuck Range0.5 to 8 mm
Shaft DesignHollow for height adjust
ProtectionFuse and Overload Relay
Primary Uses & Scope
The Remi RQ-121 / D is perfectly suited for low-viscosity liquid mixing, dissolution of solids, and sample homogenization. It is an ideal choice for educational chemistry labs, food testing facilities, and wastewater treatment research where consistent stirring of up to 10 liters is required daily.
Frequently Asked Questions
1. Is the RQ-121 / D suitable for thick syrups?
It is best suited for low to medium viscosity liquids. For very thick syrups or oils, the Remi RQ-20 Plus or RQ-40 Plus high-torque models are recommended.
2. Can I change the stirrer paddle easily?
Yes, the 8mm chuck allows you to switch between propeller, turbine, or anchor type paddles in seconds.
3. Does it come with a stand?
The RQ-121 / D is typically sold as the stirrer head unit. Heavy-duty stands and boss heads are available as essential accessories.
4. What is the difference between RQ-121 and RQ-121 / D?
The /D model includes a Digital Speed Indicator, whereas the standard model relies on manual dial positioning.
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