Sale!

Features & Details

🔄 OVAL DESIGN
Engineered with a specialized olive geometry. It is heavily optimized for efficient and smooth rotation inside round bottom flasks.
🧪 PURE PTFE
Encased in high-grade Polytetrafluoroethylene. It is chemically inert across the entire pH scale to prevent sample contamination perfectly.
🧲 ALNICO MAGNET
Features a powerful Alnico magnetic core internally. It delivers sustained torque without decoupling or jumping at high mixing speeds.
📦 VALUE PACKS
Small-to-medium sizes come in economical 10pcs/lot sets. Larger high-performance models are available in 5pcs/lot packs for your lab.

About this item

Feature Description
Brand Xin Tester®
Material Pure PTFE (Polytetrafluoroethylene) Coating
Shape Type A – Oval / Olive Shape
Ideal Container Round-Bottom Flasks and Vials
Properties Acid/Alkali Resistant, High Temp Stable, Anti-Stick
Package Options 10pcs/lot (up to 40mm) / 5pcs/lot (50-60mm)
The Xin Tester® Oval Type A Stirrer Bar is the premier choice for professional research involving round-bottom glassware. With 15 precise size variations and a chemically inert pure PTFE surface, it guarantees stable, high-torque mixing without compromising the purity of your experiments.

Optimize Homogenization for Round Flasks

Standard cylindrical stir bars bounce wildly inside curved glassware. This causes splashing and damages expensive glass vessels. To solve this, chemists need a specialized oval magnetic stirrer bar for safe mixing. The Xin Tester olive design is meticulously crafted. It meets the rigorous demands of advanced chemical research perfectly. It ensures continuous vortex-free stirring for complex liquids safely. Are you setting up a new chemical synthesis station? Please explore our full range of Lab Glassware to build your perfect mixing setup today.

1The Optimized Oval Design

We specifically engineered this tool with a unique olive geometry. Our oval magnetic stirrer bar is heavily optimized for efficient rotation inside round flasks. The smooth shape significantly reduces direct point contact with the glass. As a result, it minimizes friction heavily and prevents the bar from dancing.

2Unmatched Chemical Purity

We encase every magnet in high-grade Polytetrafluoroethylene (PTFE) natively. These stirrers are chemically inert across the entire pH scale. They withstand extremely harsh corrosive environments flawlessly. The pure coating ensures no metallic impurities ever contaminate your delicate work. The mirror-polished finish prevents aggressive reagent adhesion completely.

3High-Strength Alnico Core

Inside each acid-resistant stir bar is a powerful Alnico magnet. It delivers sustained mixing torque through thick viscous liquids. It protects your fragile glassware from deep scratches safely. This powerful core ensures your oval magnetic stirrer bar survives long-duration tasks without degrading or decoupling at high speeds.

Core Capabilities of Our Oval Magnetic Stirrer Bar

📏 15 Sizing Options

Our olive shape stirrer collection provides 15 variations natively. They suit every scale from compact 5mm to robust 70mm.

📦 Value Multi-Packs

To ensure maximum value, small-to-medium sizes are available in 10pcs/lot sets. Larger models come in 5pcs/lot packs.

🧪 Fully Inert

The solid PTFE casing resists boiling acids and strong alkalis easily. This guarantees absolute sample purity during chemistry trials.

🌡️ Thermal Safe

Designed to operate under extreme laboratory heat. You can autoclave this oval magnetic stirrer bar repeatedly for sterile biology use.

FAQs

The PTFE Magnetic Stirrer Bar in Type A (Oval) is specifically engineered for use in round-bottom flasks and containers. Its curved geometry minimizes the point of contact with the vessel floor, which significantly reduces friction and prevents the bar from “jumping” or decoupling at high speeds. It provides much smoother and more stable rotation in curved glassware compared to standard flat-bottom cylindrical bars.

A professional rule of thumb is to choose a lab mixer bar length that is approximately 1/2 to 1/3 of the internal diameter of your container’s base. For the thickness (diameter) of the bar, consider the viscosity of your solution: for thicker or more concentrated liquids, a bar with a larger diameter is recommended to provide the higher torque needed for efficient homogenization.

 Yes, absolutely. Xin Tester® stir bars are encapsulated in high-grade pure PTFE (Polytetrafluoroethylene), which is one of the most chemically inert materials available. They offer exceptional resistance to strong acids, alkalis, and various organic solvents across the entire pH scale. Additionally, they remain stable under high-temperature conditions, making them ideal for use on magnetic hot plate stirrers.

Yes. Due to the self-lubricating and non-stick properties of the mirror-polished PTFE finish, these bars prevent the adhesion of residues or chemical reagents. Cleaning is effortless; most substances can be simply rinsed off with water or laboratory solvents. Their seamless, one-piece construction eliminates crevices, ensuring zero cross-contamination and maintaining the highest hygiene standards for your research.

Oval PTFE Magnetic Stirrer Bar for Round Flasks (5/10pcs)

Price range: $24.20 through $42.40

6–12 Month Warranty

Repair & Refund support available for most products.

Free Worldwide Shipping

Ships within 3 business days.

Taxes & Duties

Buyer responsible for local import fees.

24/7 After-Sales Support

Technical assistance & video guidance within 24h.

Oval PTFE Magnetic Stirrer Bar for Round Flasks (5/10pcs)

Sale!

Price range: $24.20 through $42.40

Features & Details

🔄 OVAL DESIGN
Engineered with a specialized olive geometry. It is heavily optimized for efficient and smooth rotation inside round bottom flasks.
🧪 PURE PTFE
Encased in high-grade Polytetrafluoroethylene. It is chemically inert across the entire pH scale to prevent sample contamination perfectly.
🧲 ALNICO MAGNET
Features a powerful Alnico magnetic core internally. It delivers sustained torque without decoupling or jumping at high mixing speeds.
📦 VALUE PACKS
Small-to-medium sizes come in economical 10pcs/lot sets. Larger high-performance models are available in 5pcs/lot packs for your lab.
Feature Description
Brand Xin Tester®
Material Pure PTFE (Polytetrafluoroethylene) Coating
Shape Type A – Oval / Olive Shape
Ideal Container Round-Bottom Flasks and Vials
Properties Acid/Alkali Resistant, High Temp Stable, Anti-Stick
Package Options 10pcs/lot (up to 40mm) / 5pcs/lot (50-60mm)
The Xin Tester® Oval Type A Stirrer Bar is the premier choice for professional research involving round-bottom glassware. With 15 precise size variations and a chemically inert pure PTFE surface, it guarantees stable, high-torque mixing without compromising the purity of your experiments.

Optimize Homogenization for Round Flasks

Standard cylindrical stir bars bounce wildly inside curved glassware. This causes splashing and damages expensive glass vessels. To solve this, chemists need a specialized oval magnetic stirrer bar for safe mixing. The Xin Tester olive design is meticulously crafted. It meets the rigorous demands of advanced chemical research perfectly. It ensures continuous vortex-free stirring for complex liquids safely. Are you setting up a new chemical synthesis station? Please explore our full range of Lab Glassware to build your perfect mixing setup today.

1The Optimized Oval Design

We specifically engineered this tool with a unique olive geometry. Our oval magnetic stirrer bar is heavily optimized for efficient rotation inside round flasks. The smooth shape significantly reduces direct point contact with the glass. As a result, it minimizes friction heavily and prevents the bar from dancing.

2Unmatched Chemical Purity

We encase every magnet in high-grade Polytetrafluoroethylene (PTFE) natively. These stirrers are chemically inert across the entire pH scale. They withstand extremely harsh corrosive environments flawlessly. The pure coating ensures no metallic impurities ever contaminate your delicate work. The mirror-polished finish prevents aggressive reagent adhesion completely.

3High-Strength Alnico Core

Inside each acid-resistant stir bar is a powerful Alnico magnet. It delivers sustained mixing torque through thick viscous liquids. It protects your fragile glassware from deep scratches safely. This powerful core ensures your oval magnetic stirrer bar survives long-duration tasks without degrading or decoupling at high speeds.

Core Capabilities of Our Oval Magnetic Stirrer Bar

📏 15 Sizing Options

Our olive shape stirrer collection provides 15 variations natively. They suit every scale from compact 5mm to robust 70mm.

📦 Value Multi-Packs

To ensure maximum value, small-to-medium sizes are available in 10pcs/lot sets. Larger models come in 5pcs/lot packs.

🧪 Fully Inert

The solid PTFE casing resists boiling acids and strong alkalis easily. This guarantees absolute sample purity during chemistry trials.

🌡️ Thermal Safe

Designed to operate under extreme laboratory heat. You can autoclave this oval magnetic stirrer bar repeatedly for sterile biology use.

Customer Reviews

Reviews

There are no reviews yet

Add a review
You must be logged in to post a review Log In

Discover More from Xin Tester

Variety of GL45 safety caps in different colors and hole counts.Silicone plugs included with GL45 safety cap for sealing unused ports.

Xin Tester GL45 Safety Cap for HPLC Mobile Phase (Fits 1/8″ OD)

Price range: $8.73 through $14.00

🚚 Delivery: as soon as Mon. Oct 19

Select options This product has multiple variants. The options may be chosen on the product page
20cm diameter 304 stainless steel laboratory test sieve specifications.20cm chromium-plated steel lab sieve receiver pan and lid set.

20cm Test Sieve | Ultimate 304 Stainless Steel Lab Sifter (3-2800 Mesh)

Price range: $17.67 through $46.76

🚚 Delivery: as soon as Mon. Oct 19

Select options This product has multiple variants. The options may be chosen on the product page
A fan-shaped set of white PTFE magnetic stir bar retriever rods500mm white PTFE magnetic stir bar retriever rod

PTFE Magnetic Stir Bar Retriever | Teflon Coated Lab Remover Rod

Price range: $7.76 through $9.62

🚚 Delivery: as soon as Mon. Oct 19

Select options This product has multiple variants. The options may be chosen on the product page
Three sizes of high-precision stainless steel density cups with precision lids and cylinders.Comparison of 37ml, 50ml, and 100ml specific gravity cups for various liquid density testing needs.

Stainless Steel Density Cup for Paint & Liquids (37/50/100ML)

Price range: $31.59 through $38.19

🚚 Delivery: as soon as Mon. Oct 19

Select options This product has multiple variants. The options may be chosen on the product page