Chromatographic Columns With Indentations And Beaded Rim
Product Code : EL-CC-10075
Lab Glassware Manufacturer manufactures and exports Chromatographic Columns With Indentations And Beaded Rim from its Ambala, Haryana facility, supplying school, college and research laboratories in India as well as export buyers that have recently included institutions in Estonia, Latvia and Lithuania — part of a wider base of enquiries from across the Baltic states.
Quick answer: This is a basic chromatographic column with a beaded (rolled) rim at the top rather than a ground-glass socket, a PTFE stopcock with retaining device at the base, and internal indentations above the stopcock that hold a cotton wool plug to support the packing. It is manufactured in Borosilicate Glass 3.3.
| Feature | Specification |
|---|---|
| Top finish | Beaded rim |
| Stopcock | PTFE stopcock with retaining device |
| Packing support | Internal indentations above the stopcock for a cotton wool plug |
| Material | Borosilicate Glass 3.3 |
Beaded Rim vs. NS Socket at the Top
Where a socketed version accepts a ground-glass reservoir or adapter, this column instead finishes in a beaded (rolled) rim — a smooth, strengthened edge that suits pouring solvent directly in, fitting a simple stopper, or attaching tubing over the rim. Internally it uses the same indentation-and-cotton-plug arrangement above the PTFE stopcock to support the packing material without a sintered disc.
Frequently Asked Questions
What is the advantage of a beaded rim over a socketed top?
A beaded rim gives a smooth, strengthened edge for pouring, stoppering or fitting tubing directly, as an alternative to a ground-glass socket joint where a fixed-size interchangeable connection is not needed.
How is the packing material supported in this column?
A ring of internal indentations above the PTFE stopcock holds a cotton wool plug in place, which supports the packing bed while allowing solvent to drain through the stopcock.
What does the stopcock retaining device do?
It helps keep the PTFE stopcock securely seated in the column body during use and handling.
Related Products
See the full range on the Chromatography Columns page, including the NS-socket version of this column and other PTFE-stopcock chromatography columns.
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Last updated: September 2026.