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STIR BARS WITH CENTER PIVOT RING 10 x 5 mm (0.4 x 0.5 in) (Out of stock) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 20 x 8 mm (0.8 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 25 x 8 mm (1 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 28 x 8 mm (1.1 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 30 x 8 mm (1.2 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 35 x 9 mm (1.4 x 0.4 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 10 x 5 mm (0.4 x 0.5 in) (Out of stock) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 20 x 8 mm (0.8 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 25 x 8 mm (1 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 28 x 8 mm (1.1 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 30 x 8 mm (1.2 x 0.3 in) Heathrow Scientific
STIR BARS WITH CENTER PIVOT RING 35 x 9 mm (1.4 x 0.4 in) Heathrow Scientific

Heathrow Scientific Stir Bars with Center Pivot Ring – Pack of 10

$40.00

    PTFE-encapsulated ALNICO stir bars with a center pivot ring, in six sizes. Heathrow Scientific octagonal stir bars are rated to 250°C and suit heated and unheated stirrers.

    • Sintered ALNICO magnet to reduce spin outs
    • Sizes from 10 x 5 mm to 35 x 9 mm
    • Pack of 10 (120547–120552)

See All Specs

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Fast Delivery

Most items ship same day

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Manufacturer Warranty

All products are covered by manufacturer warranty

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After-Sale Support

24/7 support

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FIND YOUR FIT

Choose Your Size

Compare configurations below. Each quantity is one pack or case as listed—not one individual item.

Available configurations for Heathrow Scientific Stir Bars with Center Pivot Ring – Pack of 10
Product Catalog No. Configuration Pack / Case Price Order
120547 BTS-120547 10 x 5 mm; white; octagonal Pack of 10 $40.00 per listed pack / case

120548 BTS-120548 20 x 8 mm; white; octagonal Pack of 10 $47.00 per listed pack / case

120549 BTS-120549 25 x 8 mm; white; octagonal Pack of 10 $58.00 per listed pack / case

120550 BTS-120550 28 x 8 mm; white; octagonal Pack of 10 $70.00 per listed pack / case

120551 BTS-120551 30 x 8 mm; white; octagonal Pack of 10 $81.00 per listed pack / case

120552 BTS-120552 35 x 9 mm; white; octagonal Pack of 10 $93.00 per listed pack / case

PTFE-coated stir bars with a center pivot ring, in six sizes

A stir bar earns its keep when it keeps spinning. Heathrow Scientific’s Stir Bars with Center Pivot Ring are octagonal white PTFE-encapsulated magnets with a pivot ring at the center, sold in packs of 10 in six sizes from 10 x 5 mm to 35 x 9 mm.

Manufacturer photograph of Heathrow stir bars with center pivot ring
Manufacturer photograph of the stir bars (family image).

Choose your size

  • 10 x 5 mm (120547)
  • 20 x 8 mm (120548)
  • 25 x 8 mm (120549)
  • 28 x 8 mm (120550)
  • 30 x 8 mm (120551)
  • 35 x 9 mm (120552)
  • All: white, octagonal, pack of 10

Sizes are length x width.

Built to keep coupling

Heathrow lists these features:

Manufacturer image of stir bars with center pivot ring
Manufacturer image of the stir bars.

ALNICO magnet

The magnet is ALNICO, which Heathrow calls one of the strongest permanent magnets available.

Sintered construction

Heathrow says the sintered manufacturing process reduces decoupling, or “spin outs”, that weaker stir bars often suffer from.

Center pivot ring

The low-friction octagonal shape with a center pivot ring is described as creating a strong vortex, including with more viscous solutions.

Encapsulation and temperature

The stir bar is encapsulated in PTFE, which Heathrow says protects both the magnet and the material being stirred and is chemically inert and easy to clean. The maximum temperature is listed as 250°C, and the bars are suitable for heated and unheated stirrers. Heathrow does not publish chemical compatibility details beyond this.

Sizes

Sizes as listed by Heathrow (length x width):

  • 10 x 5 mm
  • 20 x 8 mm (0.8 x 0.3 in)
  • 25 x 8 mm (1 x 0.3 in)
  • 28 x 8 mm (1.1 x 0.3 in)
  • 30 x 8 mm (1.2 x 0.3 in)
  • 35 x 9 mm (1.4 x 0.4 in)

Ordering stir bars

Each order is a pack of 10 stir bars. Choose the size on this page. Blue Tiger Scientific confirms availability and delivery details with your order.

Frequently Asked Questions

How many stir bars come in one order?

A pack of 10 in every size.

What sizes are available?

10 x 5 mm, 20 x 8 mm, 25 x 8 mm, 28 x 8 mm, 30 x 8 mm and 35 x 9 mm (length x width).

What is the magnet made of?

ALNICO, encapsulated in PTFE.

What shape are they?

Heathrow describes an octagonal cylinder with a center pivot ring.

What is the maximum temperature?

Heathrow lists 250°C.

Can I use them on a heated stirrer?

Heathrow states they are suitable for both unheated and heated stirrers.

Do they work with viscous solutions?

Heathrow says the shape creates a strong vortex, including with more viscous solutions.

What color are they?

White.

    SpecificationDetail
    BrandHeathrow Scientific
    ProductStir Bars with Center Pivot Ring
    Catalog Numbers120547, 120548, 120549, 120550, 120551, 120552
    QuantityPack of 10
    ColorWhite
    ShapeOctagonal cylinder with center pivot ring
    MaterialALNICO magnet, PTFE encapsulation
    Maximum Temperature250°C
    Sizes (L x W)10 x 5 mm; 20 x 8 mm; 25 x 8 mm; 28 x 8 mm; 30 x 8 mm; 35 x 9 mm
    Stirrer TypesUnheated and heated stirrers

    Ordering Information

    Cat. No.DescriptionPack
    120547Stir bar with center pivot ring, 10 x 5 mmPack of 10
    120548Stir bar with center pivot ring, 20 x 8 mmPack of 10
    120549Stir bar with center pivot ring, 25 x 8 mmPack of 10
    120550Stir bar with center pivot ring, 28 x 8 mmPack of 10
    120551Stir bar with center pivot ring, 30 x 8 mmPack of 10
    120552Stir bar with center pivot ring, 35 x 9 mmPack of 10

    Heathrow Scientific: Shipping, Returns & Manufacturer Support

    Blue Tiger Scientific is your reseller and point of contact for orders and returns purchased through our store.

    Shipping & Availability

    Shipping charges, available delivery methods and any delivery estimate are confirmed with your Blue Tiger Scientific order or quote. Contact Blue Tiger Scientific before ordering if you need a particular delivery date or special shipping arrangements. Supplier availability and carrier schedules can affect fulfillment; a delivery estimate is not a guaranteed arrival date.

    Returns Through Blue Tiger Scientific

    Start every return, exchange or order-related issue with Blue Tiger Scientific. Provide your order number, product catalog number, quantity and the reason for your request. For damage, missing items or an incorrect item, retain the packaging and include photographs where applicable.

    Do not send goods to Blue Tiger Scientific or Heathrow Scientific without return authorization and shipping instructions from Blue Tiger Scientific. We will coordinate any required manufacturer Return Goods Authorization (RGA). Return eligibility, any applicable charges and the approved shipping destination will be confirmed for your specific request before you ship. Keep the product, original packaging and supplied materials together while your request is reviewed.

    Manufacturer Warranty & Service

    Heathrow Scientific handles manufacturer warranty assessments, product service and other manufacturer-specific technical matters. Blue Tiger Scientific can help coordinate these requests and provide purchase documentation. If a return is required, arrange it through Blue Tiger Scientific before shipping.

    Coverage is subject to the manufacturer’s applicable terms for this specific product. Published equipment warranty periods should not be assumed to apply to this labware or consumable. No product-specific warranty duration is stated here. Retain your invoice or proof of purchase for any manufacturer review.

Questions about a product? Ask us here.

email us here: info@bluetigerscientific.com or live chat

STIR BARS WITH CENTER PIVOT RING 10 x 5 mm (0.4 x 0.5 in) (Out of stock) Heathrow Scientific
by Heathrow Scientific

Heathrow Scientific Stir Bars with Center Pivot Ring – Pack of 10

Size L x W: 10 x 5 mm (0.4 x 0.5 in)
Authorized Dealer

PTFE-coated stir bars with a center pivot ring, in six sizes

A stir bar earns its keep when it keeps spinning. Heathrow Scientific’s Stir Bars with Center Pivot Ring are octagonal white PTFE-encapsulated magnets with a pivot ring at the center, sold in packs of 10 in six sizes from 10 x 5 mm to 35 x 9 mm.

Manufacturer photograph of Heathrow stir bars with center pivot ring
Manufacturer photograph of the stir bars (family image).

Choose your size

  • 10 x 5 mm (120547)
  • 20 x 8 mm (120548)
  • 25 x 8 mm (120549)
  • 28 x 8 mm (120550)
  • 30 x 8 mm (120551)
  • 35 x 9 mm (120552)
  • All: white, octagonal, pack of 10

Sizes are length x width.

Built to keep coupling

Heathrow lists these features:

Manufacturer image of stir bars with center pivot ring
Manufacturer image of the stir bars.

ALNICO magnet

The magnet is ALNICO, which Heathrow calls one of the strongest permanent magnets available.

Sintered construction

Heathrow says the sintered manufacturing process reduces decoupling, or “spin outs”, that weaker stir bars often suffer from.

Center pivot ring

The low-friction octagonal shape with a center pivot ring is described as creating a strong vortex, including with more viscous solutions.

Encapsulation and temperature

The stir bar is encapsulated in PTFE, which Heathrow says protects both the magnet and the material being stirred and is chemically inert and easy to clean. The maximum temperature is listed as 250°C, and the bars are suitable for heated and unheated stirrers. Heathrow does not publish chemical compatibility details beyond this.

Sizes

Sizes as listed by Heathrow (length x width):

  • 10 x 5 mm
  • 20 x 8 mm (0.8 x 0.3 in)
  • 25 x 8 mm (1 x 0.3 in)
  • 28 x 8 mm (1.1 x 0.3 in)
  • 30 x 8 mm (1.2 x 0.3 in)
  • 35 x 9 mm (1.4 x 0.4 in)

Ordering stir bars

Each order is a pack of 10 stir bars. Choose the size on this page. Blue Tiger Scientific confirms availability and delivery details with your order.

Frequently Asked Questions

How many stir bars come in one order?

A pack of 10 in every size.

What sizes are available?

10 x 5 mm, 20 x 8 mm, 25 x 8 mm, 28 x 8 mm, 30 x 8 mm and 35 x 9 mm (length x width).

What is the magnet made of?

ALNICO, encapsulated in PTFE.

What shape are they?

Heathrow describes an octagonal cylinder with a center pivot ring.

What is the maximum temperature?

Heathrow lists 250°C.

Can I use them on a heated stirrer?

Heathrow states they are suitable for both unheated and heated stirrers.

Do they work with viscous solutions?

Heathrow says the shape creates a strong vortex, including with more viscous solutions.

What color are they?

White.

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