Description
The BOLA Beaker Liner with cage outer diameter 30 mm and height 12,5 mm is a PTFE laboratory stirring accessory built for reliable magnetic mixing in small low-form beakers. A PTFE-coated Alnico 5 magnetic core is mounted centrally inside a PTFE guide cage, combining strong magnetic coupling with broad chemical resistance across typical laboratory media. The integrated stirring bar measures 25 mm in length by 5 mm in diameter and remains guided within the cage during rotation, helping maintain stable agitation without direct contact between the magnet and vessel walls. Dimensions are matched to low-form beakers of 50 ml and 100 ml capacity, so the liner sits securely on the beaker base while the cage keeps the bar centred. Manufactured from polytetrafluoroethylene (PTFE) throughout the wetted cage structure, the unit resists aggressive solvents, acids and bases commonly encountered in synthesis, sample preparation and analytical work. Net weight is only 0,0047 kg, making handling and placement straightforward. This BOLA design from manufacturer Bohlender supports everyday magnetic stirring tasks where chemical inertness, dimensional fit and smooth bar guidance are essential. Supplied as a single piece for laboratory use.
This article is part of Beakers, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Material: Polytetrafluoroethylene (PTFE)
- Cage outer diameter: 30 mm
- Cage height: 12,5 mm
- Stirring bar (L × Ø): 25 × 5 mm
- Magnet core: Alnico 5
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Questions about BOLA Beakerliner, Ø 30 mm, H 12,5 mm Stirring bar Ø 5 x 25 mm, magnetic core mad
What is this article?
BOLA Beakerliner, Ø 30 mm, H 12,5 mm Stirring bar Ø 5 x 25 mm, magnetic core mad is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Beakers, inside Beakers & flasks, in Labware.
A beaker is an open, straight-sided working vessel with a spout. It is for dissolving, heating and pouring. The graduations are a guide, not a volumetric calibration. Low form and tall form differ in stability and in how easily a liquid splashes.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Beakers & flasks. The sub-category is Beakers. The catalogue is Labware.
Shelves beside this one are Round-bottom flasks, Erlenmeyer flasks, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

