NESTECH supports 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 NESTECH rapid prototyping service, customers can quickly obtain design feedback and accelerate the product iteration and optimization process before proceeding with serial production.
NESTECH guarantees:
- 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
NESTECH service is intended for:
R&D/Engineering Departments to test new geometries, materials and solutions and validation of design before serial production.
Research Centers and Universities that require physical prototypes for experiments, materials testing, and the study of new geometries
What NESTECH does:
- 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
NESTECH is at the forefront of prototype manufacturing for:
- Reluctance motors
- Permanent magnet (PM) motors
- Hybrid PM + reluctance solutions
Advanced technologies and materials
To ensure high performance and reliability in stator and rotor prototypes, NESTEC uses cutting-edge technologies and selected materials that meet the most advanced requirements in terms of magnetic efficiency, precision and insulation values.
- NESTECH is able to cut low gauge laminations (N010, N020, N027) to reduce losses and eddy currents
- It uses backlack coated electrical steel for high magnetic efficiency and insulation without metal-to-metal contact
- The company operates with extremely controlled, low-power fiber laser cutting machines to preserve the steel structure and edge insulation.
Backlack technology
NESTECH uses 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
- Improved precision in lamination alignment
- Improved perpendicularity and flatness of the stacks
- Minimized interlaminar short circuits
- No disturbances in the magnetic field due to welding or other similar processes.
