Working principle of meltblown machine

Most of the die head is a rectangular spinneret, the material is generally SUS316L, SUS304, SUS630, SUS431 and other stainless steel.

In the past, in order to ensure the concentricity of spinneret microholes and guide holes, they were generally processed from one side, from large holes to microholes. Due to the large overhang, the difficulty factor is extremely high. Due to the urgent need for rapid production, most processes have been changed to process micropores from the back, but this will cause problems such as concentricity and burrs.