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Scienceware F377810000 Teflon (PTFE), Jumbo Magnetic Spinbar Retriever, 26" Length

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Specifications for this item
Number of Items
Material Type
PTFE (Polytetrafluoroethylene)
Part Number
Outside Diameter
4.25  inches
Brand Name
Bel-Art Products
Size Name
Overall Length
26  inches

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Key Features

  • Removes a large magnetic stir bar that is inside a container
  • Made from Teflon (PTFE), which is chemically inert and can be used with corrosive chemicals
  • Internal magnet made from alnico V, an alloy of aluminum, nickel, iron, and cobalt
  • T-shaped handle for gripping
  • Measures 26" (65 cm) in length

Package Details

Shipping Weight: 1.05 pounds
Package Size: 29 x 5.6 x 5.3 inches

Product Description

The Bel-Art Scienceware F377810000 Teflon (PTFE) magnetic stir bar retriever has an internal magnet made from alnico V (an alloy of aluminum, nickel, iron, and cobalt) for removing a large magnetic stir bar that is inside a container. The retriever is made from chemically inert Teflon (polytetrafluoroethylene, or PTFE) and can be used with corrosive chemicals. It has a T-shaped handle for gripping. The retriever measures 26" (65 cm) long. It is for use in laboratory stirring applications.

Magnetic stir bars (sometimes called stirring bars, spin bars, or fleas) are used to stir a liquid or solution in biological, chemical, medical, and research laboratory applications. The stir bar is placed inside a container of liquid or solution that is seated on a magnetic stirrer (also called a magnetic mixer), which is a laboratory device that creates a rotating magnetic field using a rotating magnet or multiple stationary electromagnets. The rotating magnetic field causes the bar to spin, which stirs the liquid or solution. Stirring bars are offered in a variety of sizes and shapes, and they are encased in materials such as glass or plastic to help prevent contamination of the liquid or solution, to reduce friction, and to provide resistance to chemicals, abrasion, and heat. The bar may have a pivot ring or pivot point to minimize contact with the container, reduce friction, and improve its spinning. The size and shape of the container and the volume and viscosity of the liquid or solution to be stirred determine which stir bar shape, size, and casing will suit a particular application.

Bel-Art Products manufactures scientific products, including labware, testing equipment, and safety supplies, under the Bel-Art and Scienceware brands. The company, founded in 1946, is headquartered in Wayne, NJ.

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