SLS 3D printing
From prototype to series production. 11 industrial SLS machines produce up to 100,000 parts per month with consistent quality and lead times starting at 5 working days.
Upload your STEP file →What is SLS?
In Selective Laser Sintering (SLS) a laser builds your part layer by layer in a powder bed. The surrounding powder acts as a support structure, so no support structures are required. That means full design freedom and the ability to nest hundreds of parts in a single build.
The result: near-isotropic mechanical properties, consistent quality from the first to the ten-thousandth part, and no tooling costs. The same machine produces your prototype and your production series.
Why SLS for production?
No tooling required. Prototype and series run on the same machine. No moulds, no waiting times, no minimum order quantities.
Consistent quality. SLS delivers near-isotropic mechanical properties. Whether you produce 10 or 10,000 parts: the same strength, the same tolerances.
8+ materials in production. PA12, PA640GSL (Carbon LW) for stiffness, PA802CF, TPU and more. Each material selected for industrial applications.
Standard layer thickness 0.1 mm. Smooth surface, minimal visible layer build-up. offers an even finer surface thanks to the smaller particle size distribution.
From design to production in 5 working days
Upload your STEP file and receive a price indication within minutes. Every design is reviewed for manufacturability, tolerances and material choice before production starts.
3 EOS P500 dual-laser systems and 7 EOS P396 production lines are ready for both urgent prototypes and series up to 100,000 parts. Standard lead time: from 5 working days.
SLS vs MJF: which technology fits your production?
HP Multi Jet Fusion (MJF) is an alternative powder-bed technology. Both are suitable for series production, but there are significant operational differences.
EOS SLS (Parts on Demand)
Throughput
0.63 L/hour product (P500, 66L build volume)
Nesting density
15% standard
Surface quality
Finer with (smaller particle size)
Material choice
8+ polymers incl. Carbon LW, PA802CF
Colour
Structural black () or white (PA12). No impregnation needed.
Powder reuse
80% refresh rate ()
HP Multi Jet Fusion (MJF)
Throughput
0.25 L/hour product (40L build volume)
Nesting density
Max 8%
Surface quality
Good, but is finer due to particle distribution
Material choice
Primarily PA12 (grey/black)
Colour
Grey, requires post-processing for consistent black
Powder reuse
~80% (comparable)
3x
EOS P500 dual-laser systems
0.1mm
Standard layer thickness
100,000+
Parts per month capacity
5
Working days standard lead time
SLS production for 8+ industrial sectors
What customers say about SLS production
“Because we design fully custom solutions, 3D printing technology is ideal. Virtually no limitations compared to turning and milling.”
PWR · Robotics & End-of-arm tooling
Read the story →“Custom work, especially in the high-end segment. 3D printing gives the design freedom you need for complex, functional parts.”
Machine Building · Custom signalling
Read the story →“Making the impossible possible. Complex geometries that are not feasible with traditional techniques, printed in series.”
Engineering · Product innovation
Read the story →Frequently asked questions about SLS 3D printing
What is the difference between SLS and MJF (Multi Jet Fusion)?
Both are powder-bed technologies for series production. SLS on the EOS P500 delivers a throughput of 0.63 L product per hour (versus 0.25 L/hour for MJF), a higher nesting density (15% vs max 8%) and access to 8+ industrial polymers. on SLS offers a finer surface than MJF thanks to the smaller particle size distribution.
How many parts can Parts on Demand produce per month?
The machine park counts 11 industrial SLS machines, including 3 EOS P500 dual-laser systems. That is capacity for up to 100,000 parts per month. The P500 has a build volume of 66 litres and runs 24/7 in an automated production environment.
Which materials are available for SLS 3D printing?
8+ industrial polymers are in stock: PA12 (white), PA640GSL/Carbon LW (high stiffness), PA802CF (carbon-fibre reinforced), PA11, TPU (flexible), PA12 Blue MD (metal-detectable) and more. PA12 run on the EOS P500; other materials on the 7 EOS P396 production lines.
What is the standard lead time for SLS parts?
Standard lead time is from 5 working days. Expedited production is available for urgent orders. Upload your STEP file for an instant price indication including lead time.
Can I use SLS 3D printing for series production?
Yes. SLS is highly suitable for series from 1 to 100,000 parts. No tooling costs, no minimum order quantities, and the same mechanical properties for every part. Many customers in automotive, semiconductor and machine building use SLS as an alternative to CNC milling or injection moulding.
What is ?
is a high-performance polymer exclusive to Parts on Demand, developed in cooperation with ALM/EOS. The material is structural black (the colour runs through the entire part, not just on the surface), has a tensile strength of 44 MPa and a powder reuse rate of 80%, which results in approximately 35% lower unit cost compared to standard black PA12.
How does SLS compare to CNC milling or injection moulding?
SLS requires no tooling (versus 4-12 weeks for an injection mould) and no minimum order quantity. Compared to CNC milling, SLS offers full design freedom: internal channels, lattice structures and organic shapes at no extra cost. For series up to 100,000 parts SLS is often faster and more cost-effective.