Clear Tubular Injection Vials

Injectable drugs call for the most chemically resistant glass, because the container is in direct contact with a product that goes straight into the body. Type I borosilicate, high in silica and boron oxide and low in alkali, offers the highest hydrolytic resistance of the pharmaceutical glass types, which is why it is the standard material for parenteral vials.

Tubular vials are converted from precision borosilicate tubing, giving the thin, uniform, dimensionally consistent body that high-speed aseptic filling and automatic stoppering depend on.

These vials carry liquid injectables, lyophilized products, vaccines, biologics and antibodies, diagnostic reagents and veterinary injectables. Small sizes from 1 to 5 ml cover single doses and clinical-trial fills; 10 to 30 ml suits multi-dose presentations and reconstitution volumes. Contract fill-finish sites, hospital and compounding pharmacies, and diagnostic kit makers all use the same basic format, with ready-to-use nest-and-tub packs available for lines set up to fill directly from the tub.

The vial has a flat base, a straight cylindrical body, a short shoulder and a 13 mm or 20 mm crimp finish with a blowback profile shaped for reliable stopper seating. Wall thickness and finish dimensions are held to tight tolerances so stoppers and crimp seals apply consistently. Clear glass allows full visual inspection of the contents; amber is available for light-sensitive products, and the same body can be supplied in several heights for a given diameter.

Injection vials work as part of a container-closure system: the glass, rubber stopper and aluminum crimp seal are qualified together by the drug manufacturer for integrity, and filling is aseptic. For lyophilized products, the stopper is half-seated for freeze-drying, then fully seated and crimped in the chamber. Send us your stopper and seal specification and we’ll supply finish drawings and samples so your team can run fit and integrity trials.

We convert Type I borosilicate tubing on rotary forming machines that shape the base and crimp finish, then anneal and inspect for dimensions and cosmetic defects. Certificates of analysis, glass-type compliance documentation and, where needed, delamination-risk data are available on request. Options include amber glass, printed or ceramic-label rings, and ready-to-use vials washed, depyrogenated and sterilized in nest-and-tub packs; ask us for the supporting validation documents for that format.