18mm screw caps

18mm septa use only the highest quality materials to ensure proper function, specifically for GC applications, ensuring the septum does not fall into the vial during sample injection.

Aijiren 18mm magnetic screw cap (silver) and silicone/PTFE septa. Cap: The magnetic 18 mm screw cap can be effectively tested on the gas chromatograph autosampler, and the standard aperture of the center hole ensures the effective injection of the autosampler. Septa uses inert PTFE and Silicone bonding, or PTFE and Butyl bonding, these can be provided to customers to choose.

18mm Screw Neck Closures 18mm screw neck vials with magnetic screw seals for CTC is a new product in the headspace market where the jaws dominate. Especially for magnetic caps that are difficult to crimp, screw caps are a convenient alternative. 18mm Screw Neck Closures with Vial are preferentially used in instruments: CTC PAL, Varian, Gerstel, Atas, Shimadzu, Aijiren.

The metal cover provides the widest temperature tolerance range and is very resistant to impact cracking. The metal cover is very suitable for gas chromatography applications. The metal cover is made of steel (chrome-plated or tinplate anti-corrosion coating) or aluminum.

Aijiren’s Magnetic Precision Screw Metal Cap is 18mm in size, which is very suitable for sealing gas chromatography. This kind of cap is often used in headspace vials, and the center hole with it is very convenient for sampling by autosampler.