---
product_id: 183118432
title: "Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece"
brand: "bbtcty"
price: "11441 Ft"
currency: HUF
in_stock: true
reviews_count: 9
category: "Bbtcty"
url: https://www.desertcart.hu/products/183118432-magnetic-stirrer-stir-bar-big-2-8-inch-length-ptfe
store_origin: HU
region: Hungary
---

# Ultra-quiet operation at high RPM 2.8 inch length for max mixing PTFE material resists extreme temps Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece

**Brand:** bbtcty
**Price:** 11441 Ft
**Availability:** ✅ In Stock

## Summary

> 🧪 Stir Smarter, Not Harder — The Ultimate Magnetic Mixer Bar

## Quick Answers

- **What is this?** Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece by bbtcty
- **How much does it cost?** 11441 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/183118432-magnetic-stirrer-stir-bar-big-2-8-inch-length-ptfe)

## Best For

- bbtcty enthusiasts

## Why This Product

- Trusted bbtcty brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable PTFE Build:** Non-toxic, weather & chemical resistant for long-lasting lab use
- • **High-Speed Stability:** Handles up to 400 RPM without spinning out or noise disruption
- • **Maximized Mixing Power:** Large 70mm olive shape stirs bigger volumes effortlessly
- • **Versatile Lab Essential:** Perfect for biological, chemical, medical, and even creative uses like oxygenating drinks
- • **Precision Magnetic Control:** Strong magnet self-centers for consistent, reliable stirring

## Overview

This 2.8-inch PTFE magnetic stir bar combines robust size and superior magnetic strength to deliver efficient, quiet stirring up to 400 RPM. Engineered for demanding lab environments, its non-toxic, weather-resistant material ensures durability and versatility across scientific and creative applications.

## Description

1.Name: Polytetrafluoroethylene Magnetic Stir Bars 2.Size:20mmx70mm ( Diameter 0.8 inch * length 2.8 inch ) ; 3.Shape: Olive shape ; Quantity: 1pcs 4.Material PTFE (Polytetrafluoroethylene); Color: pure white,

Review: Better than a Similar, Much More $, Stirrer - I bought the Cole-Parmer 37130-9003 Egg-Shaped Stir Bar, 3" L x 3/4" Dia; 1/Pk in April for $43.83. And it has worked well. But when I couldn't find it last week (since found), I ordered this very similar stir bar. Hands down, this iitem performs better. It's heavier, bigger, and thus mixes more. This magnet is significantly stronger. It will move itself to the magnetic center above the magnetic stirrer if the I place it anywhere close to that location. Also, this stir bar can handle a significantly faster rate of rotation per minute without spinning out. I got it up to 400 RPM, mixing lye into 4L of water, and had no interest in going any faster. I am assuming this stir bar will last for a good while, given the material of its composition. I will report back if any problems arise in that regard. At the moment, I am tickled pink. Update: This stirrer is also significany quieter than other stir bars I have used. Once it gets up to speed, I have to look at the surface of the liquid being stirrer to verify that it is being stirred. I received no compensation or benefit for this review.
Review: Vortex drinking water - These are extra "pills" for my magnetic stirrer, Perfect for my needs, I use them to vortex oxygen into my drinking water, also I use them for stirring my coffee, I use powdered milk and a tablespoon of honey, and these are the perfect size for a coffee cup, ads oxygen to my coffee also! Water Vortex machines can cost hundreds of dollars, but these magnetic stirrers are cheap and do exactly the Same thing!!!

## Features

- Large Size: Diameter 23mm (0.9 inch) , Length 70mm (2.8 inch )
- Shape: Olive shape ; Quantity: 1pcs
- Material PTFE (Polytetrafluoroethylene); Color: pure white,
- It is used to stir a liquid or solution in biological, chemical, medical and research laboratory applications
- Non-toxic,No adhesion,High /Low temperature resistance,Weather resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VSMKNBF |
| Best Sellers Rank | #31,213 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab Stirrer Bars |
| Brand | BBTCTY |
| Color | 23X70mm,1pcs |
| Date First Available | July 22, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Item model number | Stir-A23*70mm |
| Manufacturer | BBTC |
| Material | Polytetrafluoroethylene |
| Number of Pieces | 1 |
| Package Dimensions | 2.56 x 1.42 x 0.94 inches |
| Shape | Olive Shape |

## Product Details

- **Brand:** BBTCTY
- **Color:** 23X70mm,1pcs
- **Material:** Polytetrafluoroethylene
- **Number of Pieces:** 1
- **Shape:** Olive Shape

## Images

![Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece - Image 1](https://m.media-amazon.com/images/I/61ofEqpJo9L.jpg)
![Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece - Image 2](https://m.media-amazon.com/images/I/71Wm10Z9U8L.jpg)
![Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece - Image 3](https://m.media-amazon.com/images/I/61d1m-Jb-cL.jpg)
![Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece - Image 4](https://m.media-amazon.com/images/I/71mzrpD6MrL.jpg)
![Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece - Image 5](https://m.media-amazon.com/images/I/71A715xgixL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better than a Similar, Much More $, Stirrer
*by D***R on May 30, 2024*

I bought the Cole-Parmer 37130-9003 Egg-Shaped Stir Bar, 3" L x 3/4" Dia; 1/Pk in April for $43.83. And it has worked well. But when I couldn't find it last week (since found), I ordered this very similar stir bar. Hands down, this iitem performs better. It's heavier, bigger, and thus mixes more. This magnet is significantly stronger. It will move itself to the magnetic center above the magnetic stirrer if the I place it anywhere close to that location. Also, this stir bar can handle a significantly faster rate of rotation per minute without spinning out. I got it up to 400 RPM, mixing lye into 4L of water, and had no interest in going any faster. I am assuming this stir bar will last for a good while, given the material of its composition. I will report back if any problems arise in that regard. At the moment, I am tickled pink. Update: This stirrer is also significany quieter than other stir bars I have used. Once it gets up to speed, I have to look at the surface of the liquid being stirrer to verify that it is being stirred. I received no compensation or benefit for this review.

### ⭐⭐⭐⭐⭐ Vortex drinking water
*by W***E on September 3, 2025*

These are extra "pills" for my magnetic stirrer, Perfect for my needs, I use them to vortex oxygen into my drinking water, also I use them for stirring my coffee, I use powdered milk and a tablespoon of honey, and these are the perfect size for a coffee cup, ads oxygen to my coffee also! Water Vortex machines can cost hundreds of dollars, but these magnetic stirrers are cheap and do exactly the Same thing!!!

### ⭐⭐⭐⭐⭐ Great product, zero issues
*by W***S on July 5, 2025*

Why did you pick this product vs others?: great when you have a lot of sediment to stir in your extraction that causes typical stir bars to become over encumbered and pause, no longer stirring. Soap nuts, arnica, ashwaghanda even zinc oxide is no challenge for these stir bars, provided you have the right amount of transport medium/solvent (Water, alcohol or oil)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-22*