Meltio turns Jaén into the capital of metal 3D printing

Published on May 24, 2026 | Translated from Spanish

The Jaén-based company Meltio has achieved what seemed impossible: printing metal parts with the same ease as a sheet of plastic. Its technology, developed in the heart of Andalusia, allows for the manufacturing of resistant components for the automotive and aerospace industries. This advancement reduces costs and production times, rendering many traditional manufacturing methods obsolete.

Meltio 3D metal printing head depositing molten steel wire layer by layer onto a complex aerospace bracket, orange-hot glowing bead of metal forming a precise geometric path, robotic arm moving smoothly during additive manufacturing process, CNC-machined base plate with cooling fins, real-time monitoring software interface projected as holographic overlay showing layer thickness and temperature gradients, industrial workshop background with safety yellow railings, sparks and heat haze rising from the print zone, photorealistic engineering visualization, dramatic side lighting emphasizing metallic texture and molten glow, ultra-detailed nozzle tip and wire feed mechanism, cinematic depth of field

How the layer-by-layer welding head works 🔧

Meltio's system uses a head that deposits metal powder and melts it with a high-power laser, creating solid parts without the need for molds. Unlike conventional sintering, its process allows for the fabrication of complex geometries with a density close to 100%. The precision is such that engineers can adjust the material composition during printing, something unthinkable in traditional machining. This represents a qualitative leap for prototypes and spare parts.

Goodbye plastic, hello to parts that don't break when stepped on 💪

If you've ever cursed a broken plastic part, Meltio offers you a definitive solution: print it in metal. Of course, the cost will no longer be a laughing matter, but you also won't have to buy the same replacement part every two months. Now you can boast of having an indestructible phone stand or a hinge that survives a move. Jaén, once known for its oil, now also produces parts that don't melt in the sun.