SERVICES

Rapid prototyping

Testing Innovation: from CAD file to real Part
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Rapid and custom prototyping of electric motor components

We support engineers and producers in the manufacturing of single laminations, complete custom laminated stator and rotor cores, ready for physical testing and validation in short timeframes. Thanks to our rapid prototyping service, our customers can quickly obtain design feedback and accelerate the product iteration and optimization process before proceeding with serial production.

We guarantee:

  • Short lead times
  • High precision, even with complex geometries and special materials
  • Flexible production, from single pieces to small batches
  • High value engineering support: from CAD file to real prototype

Our service is intended for:

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R&D
DEPARTMENTS

to test new geometries, materials and solutions before serial production
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ENGINEERING
DEPARTMENTS

to validate design changes or optimize the performance of magnetic components
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RESEARCH CENTERS
AND UNIVERSITIES

that require physical prototypes for experiments, materials testing, and the study of new geometries

What we do:

  • Rapid production of laminations based on CAD drawings
  • Manufacturing of complete laminated cores (rotors and stators), even in small quantities
  • Prototypes ready for testing, even on complex geometries
  • Engineering and manufacturing of dedicated tools for stacking and pressing
  • Management of innovative materials: thin magnetic steels (e.g., NO10, NO20, NO27).

Technical know-how
to support innovation

We are at the forefront of prototype manufacturing for:

  • Reluctance motors
  • Permanent magnet (PM) motors
  • Hybrid PM + reluctance solutions

Every day we support engineers and R&D centers in the conception of evolving geometries, with different quantities and positions of magnets, variable slots and complex shapes.

CUTTING-EDGE TECHNOLOGIES Advanced technologies and materials

To ensure high performance and reliability in stator and rotor prototypes, we use cutting-edge technologies and selected materials that meet the most advanced requirements in terms of magnetic efficiency, precision and insulation values.

  • We are able to cut low gauge laminations (N010, N020, N027) to reduce losses and eddy currents
  • We use backlack coated electrical steel for high magnetic efficiency and insulation without metal-to-metal contact
  • We operated with extremely controlled, low-power fiber laser cutting machines to preserve the steel structure and edge insulation.

BONDINGBacklack technology

We use BACKLACK technology for cores manufacturing. The single laminations are cut from electrical steel pre-insulated with epoxy resin. When heated to approximately 200°C, the resin cures, allowing the laminations to bond together.

The advantages of this technology are:

  • Minimized deformation of the stacks
  • Improved rigidity and stability of the stacks
  • No vibrations
  • Improved precision in lamination alignment
  • Improved perpendicularity and flatness of the stacks
  • No disturbances in the magnetic field due to welding.

Benefits of our prototyping service

  • Quick manufacturing times: prototypes can be produced in short time frames, accelerating the development process.;
  • High precision: our fiber Laser machines guarantees tight tolerances, ensuring components fully compliant to drawings;
  • Initial cost savings: no need of stamping tools, therefore our solution is ideal for initial development and small series, optimizing costs right from the start.;
  • Design flexibility: we quickly adapt cutting and stacking parameters to any design variant, simplifying changes between different issues of drawings and prototypes;
  • Continuous technical support: we offer assistance throughout the entire process, from design to delivery, with expert and qualified personnel.
RESEARCH & DEVELOPMENT PROJECTSExamples of tailor-made solutions
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1. Laminated rotor core for permanent magnet synchronous motors with radial magnets, complex geometry, produced for a research and development application.

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2. Laminated core for an electric machine required for a research and development project, pressing plates, bonded laminations. Complete core CNC reworking after stacking and assembly.

FAQ - Frequent Ask Questions
1. What is the minimum thickness of the laminations you can manufacture and integrate into prototypes?

Minimum workable thickness: 0.1 mm, material NO10 (EN 10303).

2. Do you also produce prototypes with complex or segmented geometries (e.g., IPM rotors)?

Yes, of course. With our precision, low-power laser systems, we can produce even very complex and detailed geometries, such as very thin bridges, without compromising the material and its insulation.

3. Is it possible to choose the rolling orientation or cutting angle comparted to the sheet metal rolling direction?

Yes, this is a common practice, also because it optimizes sheet metal thickness and electromagnetic flux.

4. Can you provide samples with activated backlack treatment?

Yes, we can provide these samples.

5. Do you manage material traceability and tolerances?

Yes, absolutely. We manage material traceability for 100% of the batches produced, as well as the measurements of individual laminations and laminated stacks, using 2D and 3D CMM machines.

6. Can you provide suitable prototypes for power loss or magnetic characterization testing?

Yes, we are sometimes asked for samples specifically for loss testing or general machine performance testing during the design phase.

4 REASONS TO CHOOSE US

Why Nestech?

Tailor-made solutions
for the customer

We manufacture tailor-made parts in the R&D, industrial production, Repair and Service activities.

Cutting-edge
technology

We are equipped with last generation machinery park to guarantee state-of-the-art products.

Innovation
and sustainability

We are committed to reducing the environmental impact of our production through the adoption of cutting-edge technologies and eco-sustainable practices.

Fast and flexible
service

Short lead times, as no initial investment in stamping tools is required.
INFORMATION REQUESTConsult Our Experts
For specific requests or urgent matters, our technical team is at your disposal.






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