Prasad Lab Equipment

A Magnetic Stirrer with Hot Plate is a laboratory device that combines a magnetic stirrer and a heating element to simultaneously stir and heat liquids in laboratory glassware such as beakers, flasks, or containers. This device is commonly used in chemical, biological, and pharmaceutical research or in educational labs for a variety of applications where both stirring and heating are required.

Key Features of a Magnetic Stirrer with Hot Plate:

1. Magnetic Stirring:

   • A magnetic stirrer uses a rotating magnetic field generated by a motor to spin a magnetic stir bar (usually coated with PTFE) placed in the liquid. The stir bar is attracted to the magnetic field and rotates within the container, causing the liquid to stir.
   • Adjustable speed: The stirring speed can usually be adjusted from low to high to accommodate different viscosities of liquids and the type of mixing required.

2. Hot Plate Heating:

   • The hot plate provides heat to the liquid by heating the surface of the plate beneath the container. The plate is typically made of ceramic, aluminum, or stainless steel, and is often equipped with a temperature control dial or digital display for precise temperature regulation.
   • Some models also include a built-in temperature sensor (often a thermocouple or RTD) to provide accurate readings of the liquid temperature.

3. Speed Control:

   • The stirring speed can be adjusted through a dial or digital settings, allowing the operator to control the intensity of mixing. Common speed ranges are from 100 to 1500 RPM or more, depending on the specific device.

4. Temperature Control:

   • The hot plate is often equipped with a temperature control feature, either manual or digital. The user can set the desired temperature, typically ranging from ambient temperature to 400°C or more, depending on the model.
   • Overheat protection may also be included to avoid excessive heating, preventing damage to the equipment or containers.