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Ten white cylindrical PTFE-coated stir bars with pivot rings 9.52 mm diameter 19.05 mm length

Lab Safety Supply Inc

Lab Safety Supply Inc 21R586 Magnetic Stir Bar with Pivot Ring 9.52 mm 19.05 mm PK10

SKU CH-19R8-57HCW

Pack of ten white PTFE-coated cylindrical stir bars with Alnico V magnets, pivot rings, 9.52 mm diameter and 19.05 mm length

  • TypeAssortments & Kits
  • PTFE coating resists chemicals during stirring
  • Alnico V magnet provides strong magnetic coupling
  • Cylindrical 9.52 mm diameter fits standard vessels
  • 05 mm length suits common beaker sizes
  • Pack of 10 bars supports high-throughput workflows

Magnetic Stir Bar Kit

The Lab Safety Supply 21R586 pack contains ten cylindrical stirring bars. Each bar measures 9.52 mm in diameter and 19.05 mm in overall length. They are built for laboratory professionals who need consistent mixing in standard vessels. The white PTFE coating resists chemical attack during routine use.

Alnico V Magnet Core

An Alnico V magnet sits inside the PTFE shell to deliver strong coupling with external stirrer drives. A moulded pivot ring reduces friction against the container base for smoother rotation. The durable coating protects the magnet from corrosive reagents and simplifies cleaning between experiments.

Ten-Pack Convenience

Ten bars in one package let technicians outfit multiple workstations or keep spares on hand. Immediate replacements minimise downtime when a bar is lost or damaged. California Proposition 65 warnings apply because the product contains listed chemicals.

Highlights

  • PTFE coating resists chemicals during stirring
  • Alnico V magnet provides strong magnetic coupling
  • Cylindrical 9.52 mm diameter fits standard vessels
  • 05 mm length suits common beaker sizes
  • Pack of 10 bars supports high-throughput workflows

Specifications

BrandLAB SAFETY SUPPLY
TypeAssortments & Kits

Questions about this item

What diameter does the 9.52 mm cylindrical stir bar require from the vessel?

The 9.52 mm diameter fits standard laboratory vessels with matching internal dimensions; the PTFE coating reduces friction against glass walls.

How much vertical clearance does the 19.05 mm overall length need above the stir plate?

The 19.05 mm length requires at least that much clear space between the vessel bottom and any overhead obstruction to rotate freely.

Does the pivot ring change the way the bar couples to the magnetic drive?

The pivot ring stabilises the Alnico V magnet during rotation, preventing the bar from migrating or tumbling at higher speeds.

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