SLM Technology


metal additive manufacturing SLM technology

Schema of SLM machine

It is a suitable technique for the manufacture of:

Parts with high mechanical and thermal resistance

Light components

Complex geometric designs

Parts with internal cavities

Functional prototypes

Selective Laser Melting (commonly known as metallic 3D printing), consists of the iterative superposition of layers of metallic powder of approx. 50 microns on a table and its subsequent fusion by means of a laser . The sum of the sections generates a very dense piece (approx. 99.5%) of the chosen metal and of great precision.

metal additive manufacturing

Parts obtained at the end of 3D printing.

What does metal 3D printing offers you?


time reduction in metal additive manufacturing

· Low lead time

(2-3 days)

· Design freedom

between sets

· Virtual stock

Cost reduction in metal additive manufacturing

· Low-medium sets

(from 1 unit)

· No tool investment

· Component reduction

(production management)

Design optimization in metal additive manufacturing

· Complex geometries

· Weight and space reduction

· Improvement of functions

· Customization

Additive manufacturing vs. subtractive


SLM is an additive manufacturing technologies since it only adds the material necessary for the formation of the part . In subtractive technologies like machining, by contrast, the starting material is much larger and a lot of waste is created. This also influences the final weight of the piece.

SLM technology is included within Industry 4.0, offering an advance over traditional technologies and achieving the digitalization of production.

metal additive manufacturing Versus sustractive

Comparison between machining and 3D printing

SLM capabilities

maquinas impresion 3d metal  RenishawRenishaw

1 x Renishaw AM 250

Technical data

Laser power: 250W

Layer thickness: 20-100 microns

Working volume: 250x250x300 mm

Argon inert gas

2 x Renishaw RenAM 500M

Technical data

Laser Power: 500W

Layer thickness: 20-100 microns

Working volume: 250x250x350 mm

Argon inert gas

Productive improvements

· Dedicated material machines - Eliminates the risk of contamination.

· Automatic powder recirculation and sieving - Increases process productivity.

· Integrated vision system - Analysis and control of failures.

· Spectral real-time monitoring - Quality control.

In addition to the SLM additive manufacturing machines, we offer you the post-processing capabilities you need to deliver the final product meeting all your requirements: machining, polishing, etc.

Dry Electro-polishing

DryLyte® electropolishing is a revolutionary polishing system that does not use any type of liquid. This patented technology uses free solid bodies capable of conducting electricity and eliminating the oxides produced during the process. Unlike traditional systems, DryLyte® obtains a uniform finish avoiding marks on the surface, reducing roughness and faithfully maintaining the dimensions of the piece.

Dlyte Tecnología electropulido Drylite
Electropulido seco dlyte
Pulido tecnología Drylyte Dlyte electropulido seco

Electro-polishing capabilities

Electropulido seco dlyte en impresion 3d metal
Maquina Dlyte 100 electropulido seco

MADIT has a Dlyte100I dry electropolishing machine for industrial application . It combines planetary movement and vertical movement within the drum that contains the solid bodies. It is specially designed for pieces up to 200mm with high finishing requirements, both in roughness and in aesthetic appearance .


Thanks to this machine, we can offer polishing service on pieces of different materials. These parts can come from additive manufacturing or from any metallurgical manufacturing process .




SLM technology makes it possible to manufacture metal parts of different types of materials:

· Steel

· Aluminum

· Titanium

Metal powder for metal additive manufacturing

Metal powder

· Copper alloys

· Nickel alloys

· Cobalt Chrome

Fusion laser SLM

Laser melting process

Regarding the manufacturing offer , we have specialized in the materials most commonly used in the industry. Each of these materials is manufactured exclusively on one of our machines , so that productivity is increased and the process is better controlled.


AlSi10Mg / A13600 / 3.2381


- Lightness

- Corrosion resistance

- High thermal conductivity

- High electrical conductivity


316L / S31673 / 1.4404


- High resistance up to 300ºC

- Corrosion resistance

- High ductility

- Ease of welding


1.2709 / 18Ni300 / K93120


- Very high hardness

- Very high resistance

Do you need to manufacture in other materials?

Periodically, the quality of our manufacturing process is verified: the result of the parameters are qualified through metallographic evaluations and mechanical tests are carried out.

Metallographic cuts of metal additive manufacturing

Metallographic cuts for qualification of manufacturing parameters.

Tensile tests of metal additive manufacturing

Periodic tensile tests to characterize mechanical properties.