Magnetic Stirrer Bar - B Series

Magnetic Stirrer Bar - B Series

Polygon shape with a pivot ring multifaceted surfaces add turbulence relative to similar smooth size cylindrical bars. Giant Polygon bars can be used for stirring substantial volumes in large vessels such as drums and tanks. Series B is supplied with a moulded pivot ring, this ring minimizes the contact area between the bar and the vessel, thus reducing friction and chattering. This is a common type of stir bar and is suitable for various applications, usually with flat-bottomed vessels.

PTFE coated Alnico magnet with a thin and long cylindrical shape without a pivot ring. The pivot ring allows the stir bar to rotate on the ring only, making the stirring more efficient.

Coating

Stir bars are typically coated with PTFE, which can resist high temperatures and is generally chemically inert. For very high temperature applications, and applications where PTFE is not chemically compatible, there are glass-coated options available. These are also suitable for use with highly abrasive materials.

Magnetic Component

The magnetic component is typically made of ALCINO, an alloy of aluminium (Al), Nickel (Ni), and cobalt (Co), which is suitable for most applications. There are some stir bars available that use samarium cobalt, which will offer stronger coupling with the internal magnet of the stirrer and reduce the chance of the bar spinning out. These bars allow for greater torque and can be useful in applications where you have large volumes or high viscosity liquids.

Specifications

• Magnet Type: Alnico
• Coating Type: PTFE
• Shape: Long polygon shape with a pivot ring
• Sold as each

Please select from the available sizes in the drop down menu.