Take control of your spare parts supply chain

With SLS 3D printing from Sinterit, you can produce functional spare parts in-house, on demand — with no molds, no delays, and full control over the process

What are spare parts 3D printed?

Spare parts 3D printed refers to manufacturing replacement components using additive manufacturing — especially technologies like SLS (Selective Laser Sintering). Instead of waiting for suppliers or relying on outdated molds, you can recreate or update functional parts digitally and print them on demand.
This process is used to replace worn-out, discontinued, or customized components in machinery, consumer goods, or production lines — often faster and more affordably than traditional supply chains allow.

Why SLS 3D printing is a breakthrough for spare parts production

No more waiting on suppliers




SLS gives you full control over spare part availability by enabling in-house, on-demand production. You can bypass long lead times, customs delays, or pricing uncertainty — and replace what you need immediately. It’s the simplest way to make your operations independent and responsive.


3D printed flexible replacement hoses in PA11

Precision fit, every time



Unlike FDM or basic milling, SLS offers superior dimensional accuracy and mechanical integrity. Even small components with tight tolerances or complex geometries can be recreated with confidence. It’s perfect for industrial parts where quality cannot be compromised.


3D printed air valve replacement part in PA11

Adapt fast to changes on the production line



When your production needs to shift, redesigns and replacements shouldn’t take weeks. With SLS, you can react instantly — whether you’re modifying a jig, replacing a bracket, or reconfiguring a machine. You stay agile without sacrificing performance.


3D printed automotive-style mesh grilles

Zero tooling, zero compromise



You don’t need to invest in new molds or wait for external production approval. SLS lets you digitally store your parts and print them only when needed — with repeatable quality and optimized cost per piece. It’s the perfect bridge between reliability and flexibility.

3D printed replacement lever made from PA11 material
Jakub Malec
Application Engineer, Sinterit

In many production environments, one missing part can stop the entire line. With SLS, we give teams the ability to react instantly — by printing spare parts in-house, even for their legacy machines or discontinued models. There’s no need to wait for external suppliers or compromise on quality with improvised solutions. The precision and strength of SLS-printed parts make them fully functional and reliable. It’s not just about replacement — it’s about gaining full control over continuity and uptime. Once engineers experience this kind of flexibility, they never want to go back. What’s more, the learning curve is minimal — most teams are ready to print within days. And when every hour of downtime counts, that speed makes all the difference.

Minimal line icon of an engineer wearing a safety helmet and working on a laptop, on a blue background.

Where SLS adds value in spare parts production

Replacement parts

  • Instant printing of worn or broken components
  • Revive legacy machines without official spares
  • High-strength, precision-fit industrial parts
  • Reduce downtime from weeks to hours
  • Adapt your line fast with printed brackets or housings

Maintenance parts

  • Tools and jigs made exactly when needed
  • No stock? No problem — print on demand
  • Keep service flowing with local spare availability
  • Replace mounts, knobs, seals in a snap
  • Stay independent from slow or risky suppliers

Overcome Your Challenge with the Right 3D Printer

  • Costs of investment

  • Return of investment

  • After Sales Support

  • Printouts Quality

  • Available Materials

We are determined to help you!

Let experienced experts and engineers help you make the decision

































Reliable materials for durable spare parts

PA12 Industrial

A reliable, all-purpose nylon powder for durable and dimensionally accurate spare parts used in industrial environments

PA11 CF
Sinterit PA11 CF Carbon Fiber Powder – 6 kg container.

A carbon fiber–reinforced material ideal for high-strength, high-temperature spare parts exposed to mechanical stress

Test the durability and precision of SLS spare parts before you commit

Order a sample and feel the strength, surface finish, and accuracy trusted by maintenance and production teams worldwide
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How InnoSeal restored production agility with in-house SLS spare parts

Discover case studies

FAQ – SLS 3D printing for spare parts

Can I use SLS to print functional spare parts?

Yes — SLS prints are strong, durable, and dimensionally accurate, making them ideal for many industrial-grade replacement parts. You can replace brackets, casings, mounts, and connectors without compromising performance.

Is SLS better than FDM for spare parts?

Absolutely. SLS offers isotropic strength, finer detail, and better mechanical properties than FDM — making it suitable for demanding applications where FDM quality is not acceptable.

Can I produce spare parts in-house with Sinterit printers?

Yes, all Sinterit printers are designed for professional use in engineering and maintenance environments. You can easily produce high-quality parts on demand, without relying on external suppliers or service bureaus.

What if the original part was discontinued by the manufacturer?

With SLS, you can reverse-engineer and reprint the part, even if it’s no longer in production. It’s a great solution for keeping legacy equipment running.

How strong are spare parts printed with SLS?

Very strong — especially when printed with materials like PA12 Industrial or PA11 CF. These parts can endure mechanical loads, vibrations, and exposure to industrial conditions.

Is SLS printing accurate enough for parts with tight tolerances?

Yes. SLS provides excellent dimensional accuracy and repeatability, making it suitable for parts that need to fit precisely or interact with existing assemblies.

How long does it take to get a printed spare part?

You can print full-bed spare parts overnight with Lisa X. That’s days or even weeks faster than traditional procurement or machining.

Can I print multiple spare parts in one job?

Yes. SLS allows nesting of many parts in one print run, maximizing efficiency and minimizing powder waste.

Does SLS require support structures like other 3D printing methods?

No — that’s one of its biggest advantages. You can print complex geometries, internal channels, or moving parts without supports or post-processing hassles.

Can SLS replace CNC or milling for some parts?

For many geometries and use cases, yes. SLS is faster, more flexible, and doesn’t require programming or tooling, which is a huge advantage for agile teams.

Is SLS cost-effective for one-off or short-run spare parts?

Definitely. You avoid tooling costs, reduce downtime, and produce exactly what you need — which makes even one-off prints worth it.

What materials are best for spare parts?

PA12 Industrial and PA11 CF are most commonly used, offering excellent strength, thermal resistance, and reliability in industrial environments.

How do I know if SLS is right for my maintenance workflow?

If you face delays from suppliers, need legacy parts, or want more control over production, SLS can significantly improve your uptime and flexibility.

Do I need CAD files of the original part to print a spare?

Preferably, yes — but if you don’t have them, reverse engineering with 3D scanning is a fast and effective option.

Can I use SLS spare parts in safety-critical systems?

It depends on your application and testing requirements. SLS parts are strong and accurate, but always validate critical components under real-use conditions.

Pricing

Below there are approximate costs for some example models.
Be aware that the quotation assumes that there is only one piece printed. In SLS technology, the cost per part will be much lower with a higher number of elements printed at once.
  • Flexible
  • Standard
Model
Dimensions
PA12
Smooth
PA11
Onyx
Flexa
Grey
Flexa
Soft
TPE
Below
Model volume:
Model volume:
Total print height:
6.82 cm
Dimensions:
65 x 65 x 63 mm
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
Crank
Model volume:
28.12 cm^3
Total print height:
6.82 cm
Dimensions:
65 x 65 x 63 mm
49,90 €
49,90 €
49,90 €
49,90 €
49,90 €
49,90 €
Derailleur
Model volume:
28.12 cm^3
Total print height:
6.82 cm
Dimensions:
65 x 65 x 63 mm
71,80 €
71,80 €
71,80 €
71,80 €
71,80 €
71,80 €
Driller housing
Model volume:
28.12 cm^3
Total print height:
6.82 cm
Dimensions:
65 x 65 x 63 mm
157 €
157 €
157 €
157 €
157 €
157 €
Model
Dimensions
PA12
Smooth
PA11
Onyx
Flexa
Grey
Flexa
Soft
TPE
Crank
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
Crank
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
Crank
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
Crank
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
Crank
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
Crank
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
Model volume:
28.12 cm^3
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €
51,30 €

Get a free sample box

Universal joint + turbine
The free samplebox contains two printouts made from PA12 Smooth. They are both movable designs, and each one is printed in one piece.

These are examples showing high precision and freedom of design ensured by SLS technology.
order free sample box
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SEE ADVANCED samples
This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com.