VWR® Spinbar® Stir Bars, Cylindrical

Cylindrical magnetic stirring bars offer excellent centering and smooth running characteristics.

• Small removable pivot ring in the center adds to their versatility
• Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low-friction coating
• Durable
• Inert
• Manufactured in a registered ISO 9001:2008, as verified by SGS certification
• Autoclavable

Pivot ring minimizes the contact area of the bar to the vessel, reduces friction and lessens marring of plastic containers (7.9x12mm and 7.9x19mm models have no pivot ring).

Ordering information: 6-ASSORTMENT includes six Cylindrical Spinbar® Magnetic Stir Bars with removable pivot rings, 2 each size; 1 x 5/16" (25.4 x 8mm), 1-1⁄2 x 5⁄16" (38.1 x 8mm), 2 x 5⁄16" (50.8 x 8mm).
22-ASSORTMENT includes two of each in a plastic, compartmentalized Spinbox™: 12.7x7.9mm (1/2x5/16"), 38.1x7.9mm (11/2x5/16"), 12.7x9.5mm (1/2x3/8"), 44.4x7.9mm (13/4x5/16"), 19.0x7.9mm (3/4x5/16"), 50.8x7.9mm (2x5/16"), 25.4x7.9mm (1x5/16"), 50.8x9.5mm (2x3/8"), and 25.4x9.5mm (1x3/8"), and one of each:31.8x7.9mm (11/4x5/16"), 38.1x9.5mm (11/2x3/8"), 31.8x9.5mm (11/4x3/8"), and 44.4x9.5mm (13/4x3/8").