Applications We Support
- Automotive & EV Powertrains – Rotors and stators for hybrid and electric vehicle motors
- Power Generation Systems – Components for turbines, generators, and transformers
- Industrial Automation – Robotics, machine tools, and high-efficiency servo motors
- Aerospace & Defense – Lightweight, high-output drive systems
- Consumer Electronics – HVAC units, compressors, and appliance motors
Engineered for Magnetic Efficiency and Stack Precision
Every electric motor lamination program at Oberg is built for accuracy, repeatability, and electrical performance:
- Tight-tolerance stamping for minimal burrs and consistent stack geometry
- Lamination thicknesses down to 0.008″, diameters from 0.375″ to 49″
- Optimized for low core loss and superior magnetic alignment
- Rotational skewing capabilities for improved efficiency and balance
- Insulating lamination stamping (e.g., G9 Melamine Glass Cloth, Nomex®) for dielectric separation
In-Die Interlocking Capabilities
Oberg’s interlocking technologies are a key differentiator for electric motor production:
- Laminations are interlocked directly in the die using automated tooling controllers
- Individual lams are rotated and skewed during stacking for enhanced balance
- Slide and actuator systems allow for varied lam geometries to be included within the same stack
- No adhesives or post-stacking steps required – saving time and reducing labor
This in-tool process produces stable, balanced rotor and stator stacks ideal for high-speed motor applications.
Tooling and Production Built for Scale
From tooling design through production stamping, our U.S.-based facility delivers:
- Progressive carbide and steel lamination dies engineered in-house
- Up to 1,200 strokes/minute and bed sizes up to 145″
- 50+ presses ranging from 5 to 400 tons
- Integrated die maintenance and refurbishment programs
- In-house prototyping and tryout support for new programs
Material Range
Oberg’s material expertise supports both conductive and insulating applications:
- Electrical steels (M4 through M64)
- Cobalt alloys, nickel alloys, Hiperco®, Vacodur®, Carp 49®
- Copper and aluminum for high-efficiency systems
- Insulation-grade materials including G9 Melamine, Nomex®, and specialty composites
Complete Electric Motor Laminations Support
Our vertical integration includes a full suite of secondary processes to support lamination stack prep and motor system integration:
- Cryogenics and stress relief
- TIG and laser welding
- Cleaning, deburring, and surface prep
- FOBA cosmetic laser marking
- Final inspection with advanced CMMs, OGP systems, and optical comparators
Partner with Oberg for Electric Motor Laminations Excellence
From single-lam prototypes to millions of interlocked rotor and stator stacks, Oberg Industries delivers the tooling and precision to power your next-generation electric motor program.
Contact us today and learn how our extensive experience in deep motor lamination, automation capabilities, and stamping quality make us a trusted supplier for critical motor systems worldwide.
