Type 4 carbon fiber cylinder

These are Type IV fully wrapped carbon fiber high-pressure composite cylinders and their plastic liners.

The white polymer liner is the semi-finished inner bladder, made of high-performance plastic with an aluminum boss. It provides gas tightness and cannot bear high pressure on its own. After carbon fiber winding and resin curing, it becomes the finished black carbon fiber cylinder.

Lightweight, excellent fatigue resistance and good corrosion resistance make Type IV cylinders widely used for storing compressed air, hydrogen and CNG. They are ideal for breathing apparatus, hydrogen energy vehicles and other high-pressure gas storage applications.