Customized Rotor Cores for Permanent Magnet Synchronous Motors Based on Drawings from Clients
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Customized Rotor Cores for Permanent Magnet Synchronous Motors (PMSM)
Overview
We specialize in manufacturing high-precision rotor cores for Permanent Magnet Synchronous Motors (PMSM), fully customized according to drawings provided by our clients.
The rotor core is a critical component that directly affects motor efficiency, torque density, and high-speed stability. Whether you are designing interior permanent magnet (IPM) or surface-mounted (SPM) rotors for electric vehicles, industrial servos, or high-speed applications, our rotor cores are engineered to meet your exact specifications.
We work closely with you to produce tailored solutions that integrate seamlessly with your magnet assembly and shaft coupling requirements.
Key Features
Manufactured strictly based on client drawings – including outer diameter, inner diameter, stack length, magnet slot shape, and ventilation holes.
Achieving tolerances as tight as ±0.001 mm for critical dimensions, ensuring balanced high-speed rotation.
Supports non-oriented electrical steel (M470, M600, M800, M1300) or laminated silicon steel for optimal magnetic flux.
Accurate magnet slot dimensions for interference fit or adhesive bonding of permanent magnets.
Interlocking, welding, or adhesive bonding – chosen based on your mechanical and thermal requirements.
Production follows ISO 9001 & IATF 16949 standards with 100% dimensional inspection and optional dynamic balancing.
Technical Specifications (Example – customizable)
| Parameter | Range / Capability</th |
|---|---|
| Outer Diameter | 20 mm – 500 mm</td |
| Inner Diameter (for shaft) | 8 mm – 400 mm</td |
| Stack Height | 5 mm – 300 mm</td |
| Material | Non-oriented electrical steel (various grades)</td |
| Lamination Thickness | 0.20 mm / 0.27 mm / 0.30 mm / 0.35 mm</td |
| Magnet Slot Type | Rectangular, V-shape, U-shape, or custom geometry</td |
| Tolerance | ±0.001 mm – ±0.05 mm (based on feature)</td |
| Balancing | Static / dynamic balancing available upon request</td |
| Stacking Method | Interlocking, laser welding, or adhesive bonding</td |
※ Note: All specifications are adjusted according to client drawings.
Manufacturing Process
- Drawing Review – Your 2D/3D drawing is reviewed by our engineering team for manufacturability.
- Material Selection – Electrical steel grade, thickness, and coating are confirmed.
- Tooling & Stamping – High-speed precision stamping using progressive dies.
- Stacking – Rotor laminations are stacked using interlocking, welding, or bonding.
- Optional Processing – Magnet insertion, balancing, or shaft pressing (if required).
- Inspection – 100% dimensional check + optional dynamic balancing test.
- Packaging & Shipping – Anti-rust and anti-damage packaging for international transport.
Rotor Types We Support
- IPM (Interior Permanent Magnet) Rotor Cores – With embedded magnet slots for high reluctance torque.
- SPM (Surface-Mounted Permanent Magnet) Rotor Cores – Smooth outer surface for magnet bonding.
- High-Speed Rotor Cores – Enhanced mechanical design for centrifugal force resistance.
- Segmented Rotor Cores – Modular design for large-diameter motors.
Why Choose CHINGCUNG for Custom Rotor Cores?
- One-Stop PMSM Component Supplier – We also offer stator cores, shafts, magnetic assemblies, copper coils, and complete motor winding – simplifying your supply chain.
- Engineering Support – Our team provides DFM feedback to optimize your rotor design for cost, performance, and manufacturability.
- Proven Export Experience – Serving customers in Europe, North America, and Russia with reliable logistics and customs clearance.
- Flexible MOQ – Prototype quantities accepted. We support you from R&D to mass production.
📩 Have a rotor drawing ready?
Send your rotor core drawing to us for a quick quotation and engineering review.
Email leon.xu@chingcung.com
Visit Website
🌐 www.chingcung.com
📄 For technical datasheets or to upload your drawing securely, please contact us via email.
| Name | Customized Rotor Cores for PMSM |
|---|---|
| Rotor Type | IPM (Interior Permanent Magnet), SPM (Surface-Mounted), Spoke-type, PMASynRM |
| Material | Non-oriented electrical silicon steel |
| Material Grades | M470, M600, M800, M1300, M19-29Ga, or as specified |
| Laminate Thickness | 0.20 mm / 0.27 mm / 0.30 mm / 0.35 mm / 0.50 mm |
| Insulation Coating | C3, C5, C6 (or as specified) |
| Magnet Slot Type | Rectangular, V-shape, U-shape, or custom geometry |
| Tolerance | ±0.001 mm – ±0.05 mm (feature-dependent) |
| Concentricity | ≤ 0.05 mm (customizable) |
| Dynamic Balancing | Available upon request (ISO 1940-1 compliant) |
| Capacity | Multiple specifications |
| Stacking Method | Interlocking, laser welding, or adhesive bonding |
| Quality Standard | ISO 9001, IATF 16949 |
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