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Help CenterCustom Motor Shell Stamping Parts – Stator Rotor Lamination for Electric Motors
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Welcome to Cangzhou Honglang Hardware Manufacturing Co., Ltd. — a professional manufacturer founded in 2018, with a modern factory spanning 3,000–5,000 square meters and a dedicated team of 51–100 experienced employees. As an ISO9001 and IATF 16949 certified company, we specialize in producing high-quality custom motor shell stamping parts and precision stator & rotor laminations for a wide range of electric motor applications. Our products are designed to deliver exceptional magnetic performance, tight dimensional accuracy, and reliable durability — helping motor manufacturers improve efficiency and reduce energy loss. With extensive export experience to over 15 markets worldwide, we are your trusted partner for custom motor core components.
Product Overview
Our Custom Motor Shell Stamping Parts – Stator Rotor Lamination for Electric Motors are manufactured using advanced progressive stamping dies and high-grade non-grain oriented silicon steel. Each lamination is precisely punched, deburred, and then assembled into stator or rotor cores through interlocking, welding, or bonding processes. These components form the electromagnetic heart of the motor, directly influencing torque, efficiency, and heat dissipation. We offer a full range of customization options including material grade, lamination thickness, coating type, stacking height, and final core treatment.
Key Features & Benefits
- High Magnetic Permeability & Low Core Loss: Premium silicon steel grades (e.g., M19, M36, 50W470, 50W600) ensure minimal hysteresis and eddy current losses, boosting motor efficiency up to 2–5%.
- Ultra-Tight Dimensional Tolerances: Our precision progressive dies achieve tolerances as tight as ±0.05mm on tooth tip dimensions, guaranteeing consistent air gap and smooth assembly.
- Customizable Stack Height & Interlocking Patterns: From thin laminations for high-speed motors to thick stacks for low-speed torque, we tailor the core design per your specifications.
- Multiple Insulation Coating Options: Choose from C-0 (non-insulated), C-3 (organic), C-5 (inorganic epoxy) coatings to meet specific voltage and thermal requirements.
- Enhanced Mechanical Strength: Optional welding, laser bonding, or self-clinching interlocking provide robust core integrity without compromising magnetic performance.
- Comprehensive Quality Control: 100% dimensional inspection, core loss testing (Epstein frame), and visual checks ensure every batch meets ISO9001 & IATF 16949 standards.
Technical Specifications (Typical Values – Customizable)
| Parameter | Typical Value / Range |
| Material Grade | M19, M36, 50W470, 50W600, 65W800 (or other grades per request) |
| Lamination Thickness | 0.35mm / 0.50mm / 0.65mm |
| Stacking Height | 10mm – 300mm (custom) |
| Insulation Coating | C-0 / C-3 / C-5 |
| Key Slot / Notch Tolerance | ±0.1mm |
| Burr Height (max) | 0.03mm (standard), ≤0.02mm upon request |
| Core Loss (at 50Hz, 1.0T) | ≤ 2.8 W/kg (for 50W600 material, typical) |
| Stacking Factor | ≥ 0.96 (interlocking), ≥ 0.98 (welded) |
Customization & Application Support
We understand that every electric motor design is unique. Our engineering team works closely with customers to modify die geometry, select optimal material grades, and define lamination stacking methods. Typical applications include:
- Industrial motors – pumps, fans, compressors, conveyors
- Automotive motors – EV traction motors, power steering, cooling fans
- Home appliance motors – washing machines, air conditioners, vacuum cleaners
- Servo & stepper motors – robotics, CNC machines, automated equipment
Why Choose Cangzhou Honglang?
- Established since 2018 – Over 6 years of focused R&D and production in motor lamination stamping.
- Factory size of 3,000–5,000 m² – Dedicated production lines for stamping, deburring, annealing, and core assembly.
- 51–100 experienced workers – Skilled technicians, die setters, and QC personnel ensure consistent quality.
- Certified quality system – ISO9001:2015 and IATF 16949:2016 certified, with rigorous control from raw material to final packaging.
- Global reach – Our products have been shipped to North America, South America, Europe, Southeast Asia, the Middle East, Africa, Oceania, and domestic China (Hebei region).
- Fast turnaround – Typical die lead time 20–30 days, sample production within 15 days. Full production MOQ negotiable from 500 to 10,000 pcs per order.
- Competitive pricing – Direct factory pricing with no middlemen. We offer volume discounts for long-term cooperation.
We invite you to send us your drawings or specifications for a free technical evaluation and quotation. Our engineers will propose the most cost-effective material and process to meet your performance targets. Trust Cangzhou Honglang to deliver the precision motor components your application deserves.
Frequently Asked Questions (FAQ)
Q1: What is the minimum order quantity (MOQ) for custom stator/rotor laminations?
A1: Our MOQ typically starts at 500 sets for existing tools. For new die development, we can produce as few as 100–200 samples for testing. Production MOQ depends on die complexity and material – please contact us for a specific quote.
Q2: Can you supply laminations with a custom slot shape or special notching?
A2: Yes, we offer full tooling customization. You can provide a 2D/3D drawing or a sample, and our die design team will create progressive dies tailored to your slot geometry, keyway, and interlocking pattern.
Q3: What insulation coating do you recommend for high-frequency or EV motors?
A3: For high-voltage or high-frequency applications, we recommend C-5 (inorganic epoxy) coating, which offers excellent thermal stability and high insulation resistance. For standard industrial motors, C-3 organic coating is often sufficient and cost-effective.
Q4: How do you control burr height on the lamination edges?
A4: We use fine-blanking dies with tight clearance and regular die maintenance. Our standard burr height is ≤0.03mm, and we can achieve ≤0.02mm with additional deburring processes. Burr is checked statistically per batch using a profilometer.
Q5: Do you provide core loss test reports for each batch?
A5: Yes, we perform Epstein frame core loss testing on random samples from every production batch. A test report can be provided upon request. We also offer 100% core loss testing for critical orders (subject to additional charge).
Q6: What is the typical lead time for prototype samples and mass production?
A6: Prototype samples (using soft tooling) take 10–15 working days after drawing approval. Production dies take 25–30 days. Mass production lead time is 15–20 days after tooling approval. We offer expedited service for urgent projects.
Q7: Can you package the laminations in a way that prevents rust during sea shipment?
A7: Absolutely. We apply anti-rust oil or VCI (Vapor Corrosion Inhibitor) paper and seal the parts in poly bags, then pack in cartons or wooden crates with moisture-proof lining. For long ocean freight, we recommend using VCI film inside triple-wall boxes.
Q8: How do I get a quotation for my specific design?
A8: Simply email us your technical drawings (PDF, DXF, STEP, or IGES) along with your required material grade, lamination thickness, stacking height, and estimated annual quantity. We will provide a detailed quotation within 24–48 hours.
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