The best solution for engraving and crimping with a pneumatic system. It is a digitally controlled system for the engraving of jewelry pieces, system with double port for the connection of two different handpieces. It has double operating system being able to choose between the original system in which the engraving force is controlled on the panel and the speed of impacts on the pedal or choose the plus mode in which the number of impacts per minute is set on the panel and by means of the pedal the force of the impact on the handpiece is increased with the limit previously set on the panel. It also has a self-bleeding filter valve to guarantee the good condition of the machine. The system allows a precise engraving and with excellent control of the depth of the cut which allows an excellent brightness in the engraving of gold, silver and precious metals. The setting control by means of the plus system guarantees absolute control of the impact of the grass on the piece of jewelry that avoids damage to the piece with an undesirable blow on it. It is a very reliable, resistant and small size system. It is connected to a compressor by means of a plastic hose and the air consumption is very reduced and can also work with a co2 bottle.