Description
N 20 aluminium crimp cap, silver with centre hole and butyl light grey/PTFE dark grey septum, is a ready-to-use closure component for chromatography and sample-handling workflows that require a reliable N 20 seal. The laminated septum combines a light-grey butyl elastomer face with a dark-grey PTFE contact layer, offering a practical balance of resealability and chemical resistance at the sample interface. Hardness is specified at 50° Shore A and septum thickness at 3,0 mm, supporting consistent needle penetration and sealing performance on compatible vials and bottles. Supplied as a pack of 100 pieces, the silver aluminium crimp cap with open centre is intended for routine laboratory crimping applications where visual inspection of the septum and straightforward needle access are required. This configuration from manufacturer Macherey-Nagel fits standard N 20 crimp systems used in analytical and quality-control environments. The dual-layer septum design helps maintain sample integrity during storage and injection sequences while the aluminium shell provides a secure mechanical lock after crimping. Suitable for general laboratory use with N 20 neck finishes, the pack format supports efficient stocking for high-throughput or multi-instrument setups without unnecessary bulk.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Product type: N 20 aluminium crimp cap with hole
- Cap colour: Silver
- Septum material: Butyl light grey/PTFE dark grey
- Hardness: 50° Shore A
- EAN: 4046681086526
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Questions about CC N20-H, si, But lgr/PTFE dgr, 50°, 3.0
What is this article?
CC N20-H, si, But lgr/PTFE dgr, 50°, 3.0 is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Vial caps & septa, inside Vials, caps & septa, in Chromatography equipment.
A vial cap and a septum have to match the vial neck: crimp, screw or snap, and the diameter. The septum material, PTFE/silicone or rubber, decides chemical resistance and how many times a needle can pierce it. A septum that sheds into the solvent becomes ghost peaks.
An autosampler vial is the small closed bottle a chromatograph picks up. The neck is crimp, screw or snap, and the cap and the septum have to be that neck. The septum is the part the needle pierces. A soft septum reseals. A septum that is wrong for the solvent swells or sheds particles into the sample. Inserts reduce the volume when the sample is scarce. The separation they feed is described with IUPAC names and PubChem data.
Which category should I open next?
The category is Vials, caps & septa. The sub-category is Vial caps & septa. The catalogue is Chromatography equipment.
Shelves beside this one are Chromatography accessories, Autosampler vials, Crimpers & decappers and Vial inserts.
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.
