Use Case · Rail Industry
Alstom Avoids a Full Component Swap – Thanks to a Precision 3D-Printed Impeller
How Replique reproduced a defective cooling-system impeller for a metro in Asia with precision fit – managing the entire process chain from printing to coating. The part is currently being qualified for series approval.
How Replique Helped
The Challenge
An impeller in the cooling system of a metro in Asia needed replacing. The original manufacturer only offered a full block replacement – costly and uneconomical for a single defective impeller.
The Solution
Replique reproduced the impeller with precision fit using metal 3D printing and handled every process step itself – from balancing to tolerance milling to the final corrosion-protection coating.
The Result
A more sustainable, precision-fit solution instead of a full replacement enabled the locomotive to return to service quickly – the part is currently being qualified for series approval.
From Defective Part to Ready-to-Install Impeller
Part Analysis
Instead of the full block replacement specified by the original manufacturer, Replique identified a precision-fit solution for the impeller alone.
Metal 3D Printing
Manufacturing the impeller using metal 3D printing.
Balancing & Milling
Precise post-processing: balancing and tolerance milling to achieve a ready-to-install part.
Corrosion Protection & Delivery
Final corrosion-protection coating and delivery of the ready-to-install part.
The Result
“Replique doesn't just deliver the parts – they guarantee consistently high quality worldwide. That's especially critical for series parts.”
— Lorenzo Gasparoni, Alstom 3D Printing Program ManagerYour Advantages with Replique
Consistent Quality Worldwide
Replique meets Alstom's specific inspection requirements – even for parts in series production.
All Processes, One Provider
Whether 3D printing, CNC, casting, or forging – Replique selects the most economical and technically best solution for every part.
Precision-Fit Reproduction
Targeted single-part manufacturing instead of a full replacement – faster to deploy and more resource-efficient.
Secure Your Spare Parts Supply
Discover how Replique can manufacture your parts anywhere in the world.