This type of mould is designed for ceramics that are produced in considerable numbers. The moulds are much more complex with a structure of three casings.

The first casing secures the mould to the extrusion nozzle and is the one that receives and compresses the clay.

The second casing undertakes two important functions; on the one hand it serves to secure the grate and on the other it has groves through which the brake elements enter and exit. The positioning of this row of brakes means that the exit of clay can be regulated without halting the production process.

One great advantage of this type of mould is precisely the grate in which unlike for other moulds the platens are not welded to one another, but consist of individual pieces that fit into the groves where they are screwed down.

With this system, invented and patented by Talleres Morte e Hijos, great stability is ensured in the extrusion walls and the change of pieces is greatly facilitated. Another advantage is that being able to dispense with welding it is possible to use much more resistant materials in the manufacture and which up to now were impossible to consider.

The third casing is the same as the plate on conventional moulds. The serrations and blades that give shape to the brick are screwed onto this casing.

This type of mould is recommended for the manufacture of numerous bricks, exiting horizontally or upright.