In today’s rapidly evolving industrial and technological landscape, the demand for high efficiency, high power density, and extreme reliability in power and control systems has become critical for driving next-generation innovation.
As an advanced precision motor core customization factory specializing in high-performance power scenarios, Youyou Company delivers comprehensive R&D and precision manufacturing capabilities—from foundational soft magnetic material processing to custom stator and rotor lamination stacks.
Comprehensive R&D and Precision Motor Core Manufacturing Capabilities
We are more than just a motor lamination manufacturer; we are your technical partner for high-performance electromagnetic motion cores. Youyou Company provides an integrated closed-loop capability spanning advanced soft magnetic core processing, custom motor design, and precision lamination manufacturing.
Soft Magnetic Materials & Custom Stator Processing Capabilities
| Material Category | Key Grades&Alloys | Core Advantage&Thickness | Primary Application Scenarios |
|---|---|---|---|
| Ultra-Thin Silicon SteelHigh-Frequency Core Loss Reduction | 10JNEX900 10JNHF600 20JNEH1200 | 0.10mm/0.15mm/0.20mm Ultra-low high-frequency iron loss | Robotics&Aviation Frameless servo motors,eVTOL actuators,Humanoid joint motors |
| Standard Electrical SteelHigh Permeability Balance | B35A230 B50A400 M400-50A | 0.35mm/0.50mm standard Cost-effective electromagnetic balance | Industrial&Automotive EV traction motors,Industrial automation,Submersible pumps |
| Cobalt-Iron(Co-Fe)AlloyUltra-High Saturation | Vacodur 49 VACOFLUX 50 1J22 | Bs≥2.3T saturation flux Maximum torque&power density | Aerospace&Defense Aerospace actuators,High power density flight motors |
| Nickel-Iron&Soft IronHigh Sensitivity&Shielding | Permalloy 1J50 Pure Iron DT4C | Extremely high initial permeability(μ) Near-zero coercivity | Medical&Instruments Precision magnetic sensors,Medical imaging cores,Shielding |
- ✓ Rivet-Free In-Mold Bonding (Backlack Technology): Advanced self-bonding varnish coating curing, stress-relief annealing, and vacuum magnetic heat treatment to minimize high-frequency eddy current losses and maximize motor torque density.
- ✓ Specialized Motor Core Architecture: Deep expertise in slotless motor stators, axial flux motor lamination stacks, segmented stator cores, and high-speed rotor assemblies to achieve peak dynamic response and superior power-to-weight ratios.
- ✓ Rapid Prototyping to Mass Production: From 5–7 day rapid wire-EDM prototype motor cores to high-speed carbide progressive stamping dies with in-die auto-stacking.
Why Choose In-Mold Bonding (Backlack) vs. Conventional Lamination Assembly?
To achieve maximum efficiency in 0.10mm ultra-thin motor cores, selection of the joining technology is as critical as the electrical steel grade itself:
| Technology Metric | Conventional Interlocking/Laser Welding | In-Mold Bonding(Backlack Cores) | Direct Benefit to Next-Gen Motors |
|---|---|---|---|
| Stacking Factor | 93%–95% | ≥98%High Slot Fill | Higher active magnetic iron volume=Boosted Torque Density |
| Inter-sheet Insulation | Localized breakdown at rivets/welded seams | 100%Homogeneous Coating | Prevents micro-short circuits&suppresses high-frequency core loss |
| Mechanical Stress | High localized stress&sheet distortion | Zero-Stress Bonded Stack | Preserves native magnetic permeability&lowers cogging torque |
| Shear Strength | Point contact/Weak lateral strength | ≥12 MPa High Shear Strength | Superior shock and vibration resistance under dynamic overload |
| Ultra-Thin Foil Processing | High risk of damaging<0.20mm laminations | Optimized for 0.10mm/0.15mm | Premier manufacturing pathway for low loss high speed motor stators |
Empowering Multi-Dimensional High-Performance Applications
Leveraging our advanced soft magnetic metallurgy and precision motor lamination manufacturing expertise, our custom motor cores serve demanding high-tech industries worldwide:
Aerospace & eVTOL Actuators
Delivering high saturation magnetic flux density and strict weight reduction using 1J22 and Vacodur 49 cobalt-iron laminated cores.
Humanoid Robotics & Joints
Providing 0.10mm ultra-thin backlack stators to achieve maximum torque density and zero cogging torque in dexterous hand actuators.
High-End New Energy Vehicles
Powering high-efficiency EV traction motor stators and auxiliary drive assemblies with ultra-low-loss Backlack cores.
Medical Imaging & High-Precision
Supplying ultra-stable, low-leakage DT4C and 1J50 soft magnetic cores meeting the stringent reliability standards of CT/MRI scanners.
Backed by Material Scientists and Industry Veterans
Technical breakthroughs and superior manufacturing require world-class leadership.
The core team at Youyou Company is led by senior material scientists and seasoned industry experts specializing in soft magnetic core processing, progressive carbide stamping dies, electromagnetic design, and precision mechanical engineering. Combining profound academic insight with hands-on industrial execution, our engineering team bridges the gap between conceptual electromagnetic design, DFM evaluation for motor stators, rapid prototyping, and scalable mass production.
To date, we have successfully partnered with over 30 industry-leading enterprises worldwide, delivering reliable, custom-engineered stator and rotor lamination stacks built for long-term performance.
Partner With Us for Your Custom Motor Core Project?
Whether you are in the early prototyping and Backlack DFM evaluation stage or seeking a reliable Chinese manufacturing partner with high-speed precision progressive stamping and advanced alloy annealing capabilities, Youyou Company is ready to support your goals.
