Coaxial cartridge

Coxial cartridge

This type of cartridge consists of a cylindrical outer tube and a cylindrical inner tube inside it, so that there are two separate chambers in a "tube-in-tube" (coaxial) arrangement, each filled with component A (in the outer tube) and component B (in the inner tube) and each sealed separately with a piston.

The 2-component cartridge is squeezed out with a special squeeze gun via a static spiral mixer. This special squeeze gun, whose dimensions are matched to the diameter and volume of the 2-component cartridge in each case, has a linkage with two push plates adapted to the coaxial "tube-in-tube" design of the cartridge.

During the extrusion process, the gun linkage simultaneously pushes in the axial direction into the outer and inner tubes of the cartridge, with one push plate pressing on the piston of the outer tube and the second on the piston of the inner tube. In this way, components A and B in the outer and inner tubes are simultaneously conveyed out of the cartridge and homogeneously mixed via the static spiral mixer screwed onto the cartridge.