3D printed spare parts

Due to increasing product diversity, companies with long-term capital goods are increasingly lamenting the high storage costs for spare parts. The problem: availability is becoming more critical, especially for old spare parts, which significantly increases the risk of breakdown losses. This is opening up a new, but demanding field of application for additive manufacturing. Since most spare parts have been conventionally manufactured before and have often passed through an approval process, it is generally not possible to create a copy of this component in 3D printing. Instead, this requires a complex adjustment process in order to transform a conventionally manufactured spare part into a spare part for additive manufacturing, which can be produced on-demand if required.

We identified this challenge early on and, with S.P.O.D. (spare parts on demand), developed a multi-stage process that lets us guide you into a new era of spare part production.

Take advantage of our service for 3D printed spare parts. Test us out. Send your inquiry and we will promptly reply to arrange a non-binding consultation.

Our Process

Our process

Why FIT?

  • 5 % - the answer to the question of how many spare parts from your warehouse are suitable for S.P.O.D.
  • 18 months - the average duration of a S.P.O.D. project.
  • 30 % - the average reduction in the total cost of ownership (TCO) for the relevant spare part by using S.P.O.D. (compared to conventional production).
  • 75 % - the amount by which the response time is likely to improve with S.P.O.D., with the additive manufacturing of spare parts rather than using conventional technologies.

Application example

As the manufacturer of the left sandbox housing, part of the brake system, ceased production, Deutsche Bahn risked a train failure. Since the component was manufactured as grey cast iron, no 3D printed copy could be produced. As a result, we re-engineered the component and then additively manufactured it from titanium using electron beam melting (EBM or PBF-EB/M). The component has passed the tests performed to date. If the worst were to happen, Deutsche Bahn can now quickly respond to a failure.

Application example
Spare parts analysis

Spare parts analysis

In the first step of the S.P.O.D. process, we jointly select the spare parts from your stock, whose availability is critical, whose probability of failure is classified as high, and whose costs of failure are significant. We then examine these “critical” spare parts to confirm whether additive manufacturing is possible. For the spare parts that are ultimately selected, we jointly define the relevant indicators and formulate corresponding target values.

S.P.O.D. contract

The S.P.O.D. contract defines the framework of our cooperation. It contains your requirements for the production of the relevant spare parts where this is necessary. It specifies your and our rights and obligations, defines the respective responsibilities during the project phase as well as the conditions and the schedule for the project and any additional cooperation. It is jointly developed in close collaboration and represents the foundation of our cooperation.

S.P.O.D. contract
Feasibility study

Feasibility study

The aim of the feasibility study is to find the best path for the additive manufacturing of your spare parts. There is often more than one way to reach the goal. Many different options are available for manufacturing a component using the additive or conventional technology. The best path for you therefore needs to be considered from cost and risk perspectives. Initial planned costs for the manufacturing are determined for this solution to enable clear budgeting.

Design and component engineering

Ususally, a 3D record of the S.P.O.D. spare parts does not exist, only drawings or an original part. No problem. In the 4th phase of the S.P.O.D. process, we scan your component or design a 3D model which we use as a basis for adapting the component for the selected production process, saving it as a printable record. We use tests, simulations, and iteration loops to ensure that the component fully retains its original function.

Design and component engineering
Spare part production

Spare part production

Subject to any necessary approval, we immediately start manufacturing your component. As the key parameters have already been defined in the previous phases of the S.P.O.D. process, speedy production, finishing, and the necessary quality control are ensured.

“With more than 50 systems for additive manufacturing, we can always guarantee that your spare parts will be produced in the nick of time.“

Oliver Cynamon, Managing Director FIT Production GmbH


Besides production, we also offer additional upstream and downstream services related to the topic of “3D printed spare parts”. Upon request, we can provide a customizable online portal, which lets you control and execute your entire S.P.O.D. order management process. We naturally also organize the global shipping of your spare parts, take over any assembly activities, storage or the timely picking of various spare parts.


Additive manufacturing

Laser melting (PBF-LB/M)
Electron beam melting (PBF-EB/M)
Wire arc additive manufacturing (WAAM)
Full-color PolyJet
Selective laser sintering (PBF-LB/P)
Stereolithography (SLA)
PolyJet (FLT)
Binder jetting (Drop on Powder)
Gel dispensing printing (GDP)
Supersonic 3D deposition (SP3D)
Selective cement activation (SCA)

Conventional manufacturing

Injection molding
Vacuum casting
Polyamide casting
Tool manufacturing

Finishing techniques

Metal coating
Heat treatment
Barrel finishing

Am Grohberg 1
92331 Lupburg

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