0.2MM CRNGO Stamping Stator Supplier
CRNGO Stamping — 0.2mm CRNGO Stamping Stators for Drone & BLDC Motors | Reenives Stator Core Supplier
⚠️ Are your CRNGO stamping processes suffering from excessive burrs, high core loss, or short die life? Poor stamping quality — worn dies, incorrect clearance, or inconsistent material feed — can increase eddy current losses, cause stacking problems, and drive up production costs, especially for 0.2mm thin laminations used in high-RPM drone motors.
✅ Reenives provides high-precision CRNGO stamping engineered for drone and BLDC motors. With imported high-speed progressive die stamping lines, precision carbide tooling, epoxy powder coating, and dust-free workshops, we deliver 0.2mm CRNGO stator laminations with low burrs, tight tolerances, and long die life. As a reliable 0.2mm CRNGO stamping stator supplier, we help 1000+ enterprises improve motor reliability and reduce production costs.
📋 Table of Contents
What Is CRNGO Stamping?
CRNGO stamping is the process of cutting cold-rolled non-grain-oriented (CRNGO) electrical steel into precise motor core shapes using a stamping press and hardened steel dies. CRNGO steel — also called non-oriented silicon steel — has uniform magnetic properties in all directions, making it the standard choice for motor stators and rotors. The stamped laminations are stacked, interlocked or bonded, and coated to form the stator or rotor core.
In drone brushless motors, CRNGO stamping is the most common and cost-effective production method for high volumes. The 0.2mm thickness is particularly important for high-RPM motors because thinner laminations significantly reduce eddy current losses. The stamping process directly determines:
- Dimensional accuracy & stacking factor
- Burr height & inter-lamination shorts
- Core loss & motor efficiency
- Tooling life & production cost per piece
High-speed progressive die stamping with precision carbide tooling ensures consistent lamination geometry, minimal burrs, and long tool life — critical for high-volume drone motor production.
Precision 0.2mm CRNGO stamping — manufactured by Reenives with imported high-speed stamping & epoxy powder coating lines.
Types of CRNGO Stamping
CRNGO stamping can be performed using several methods, each suited to different production volumes, precision requirements, and cost targets. Reenives offers the following:
- High-Speed Progressive Die Stamping — Continuous coil feeding through a multi-station die. Highest efficiency for high-volume drone motor production. Low cost per piece, excellent consistency.
- Compound Die Stamping — Single-stroke die that cuts the entire lamination profile in one hit. Good for medium volumes, high precision.
- Segmented Stamping — Individual teeth stamped separately for separate winding, then assembled into a full core. Higher slot fill factor.
- Interlocked CRNGO Laminations — Stamped laminations with integral dimples or dovetails for mechanical assembly. Cost-effective for high volume.
- Bonded CRNGO Laminations — Stamped laminations bonded with adhesive instead of interlocking, reducing eddy current losses.
- Epoxy-Coated CRNGO Laminations — Stamped laminations individually coated with epoxy powder for superior insulation and corrosion resistance.
- Laser-Cut CRNGO Laminations — No tooling cost, fast turnaround for prototypes and low-volume production.
- Custom CRNGO Stamped Laminations — Private mould development for unique slot counts, outer diameters, and tooth profiles.
Whether you need high-volume progressive die stamping or low-volume laser cutting, Reenives can supply the right solution.
Key Specifications & Data
Below are typical specifications for Reenives CRNGO stamping. Custom values are available upon request.
| Parameter | Typical Range / Value | Notes |
|---|---|---|
| Lamination Material | CRNGO silicon steel (e.g., 35WW200, 35WW250) | Non-oriented, uniform magnetic properties |
| Lamination Thickness | 0.20 mm – 0.50 mm (0.2 mm standard) | Thinner = lower eddy current loss |
| Outer Diameter | 20 mm – 200 mm | Customizable |
| Inner Diameter | 10 mm – 180 mm | Depends on rotor design |
| Stack Length | 5 mm – 80 mm | Affects torque & power |
| Slot Number | 6, 9, 12, 18, 24, etc. | Matches pole count |
| Stamping Method | High-speed progressive die | For high volume |
| Stamping Tolerance | ±0.05 mm (critical dimensions) | High-precision dies |
| Burr Height | ≤ 0.02 mm (for 0.2 mm material) | Optimized die clearance |
| Insulation Coating | Epoxy powder coating | Uniform, pinhole-free |
| Core Loss (at 400Hz, 1T) | ≤ 20 W/kg (0.2 mm CRNGO) | Material dependent |
| Die Life | 1–5 million strokes (typical) | Depends on material & maintenance |
Data source: Reenives internal testing & supplier material datasheets, 2024. Actual values may vary by design.
Applications of CRNGO Stamping
Reenives CRNGO stamping is used across a wide range of drone and brushless motor applications:
- FPV Racing Drones — High RPM, lightweight 0.2mm CRNGO laminations with low cogging torque and low core loss.
- Cinematic & Photography Drones — Smooth, vibration-free stamped laminations for stable aerial footage.
- Agricultural Spraying Drones — Corrosion-resistant epoxy-coated laminations for harsh chemical environments.
- Industrial Inspection Drones — High-torque stamped laminations for long endurance and heavy payloads.
- eVTOL & UAV Propulsion — Custom high-power stamped laminations for next-generation air mobility.
- Robot Actuators — Low cogging torque laminations for precise motion control.
- General BLDC Motors — Fans, pumps, power tools, and automotive actuators.
Reenives CRNGO stamping powers FPV, agricultural, cinematic, and industrial UAVs worldwide.
How to Select the Right CRNGO Stamping Process
Choosing the right CRNGO stamping process for your drone motor involves several engineering and commercial decisions. Follow these steps:
- Determine Production Volume — High volume favors progressive die stamping; low volume or prototypes favor laser cutting or compound dies.
- Specify CRNGO Material & Thickness — For high-RPM drone motors, use 0.20mm CRNGO low-loss silicon steel (e.g., 35WW200). For lower RPM, 0.35–0.50 mm is cost-effective.
- Define Critical Tolerances — Inner diameter, outer diameter, and slot dimensions typically require ±0.05 mm. Burr height should be ≤ 0.02 mm for 0.2mm material.
- Evaluate Die Design & Maintenance — Progressive dies with high-quality carbide inserts last longer and maintain precision. Ask about die maintenance schedules.
- Check Coating Capabilities — Epoxy powder coating for insulation and corrosion resistance. Ensure uniform, pinhole-free coverage.
- Request Sample Laminations — Test for burr height, dimensional accuracy, and magnetic performance before committing to production.
- Consider Logistics & Lead Time — Ensure the supplier can meet your production schedule and ship globally with export qualifications.
- Request Samples & Test — Reenives provides free samples for qualified projects. Test core loss, temperature rise, and mechanical fit.
FAQ — CRNGO Stamping Parameters
Q1: What is CRNGO steel and why is it used for motor stators?
A: CRNGO stands for Cold-Rolled Non-Grain-Oriented electrical steel. It has uniform magnetic properties in all directions, which is ideal for motor stators and rotors where the magnetic flux path is complex. CRNGO steel is typically silicon steel with 2.5–3.5% silicon content, which increases resistivity and reduces eddy current losses. Common grades include 35WW200, 35WW250, and 50WW470.
Source: Reenives engineering team, based on material datasheets and motor design principles.
Q2: Why use 0.2mm CRNGO laminations for high-RPM drone motors?
A: At high RPM, the magnetic field reverses rapidly, increasing eddy current losses. Thinner laminations — such as 0.2mm — significantly reduce these losses compared to standard 0.35mm or 0.50mm laminations. For drone motors operating above 10,000 RPM, 0.2mm CRNGO laminations help keep the motor cool, improve efficiency, and extend flight time.
Source: Reenives engineering team, based on motor design guidelines and material datasheets.
Q3: What burr height can you achieve with 0.2mm CRNGO stamping?
A: For 0.2mm CRNGO material, our high-speed progressive die stamping process typically achieves a burr height of ≤ 0.02 mm with optimized die clearance and regular maintenance. This ensures clean stacking, reduces inter-lamination shorts, and minimizes vibration. Tighter burr control can be achieved for specific applications upon request.
Source: Reenives quality control standards, 2024.
Q4: What is the typical core loss of your 0.2mm CRNGO stator laminations?
A: Our 0.2mm CRNGO stator laminations using 35WW200 silicon steel typically exhibit core loss ≤ 20 W/kg at 400Hz and 1 Tesla. This is lower than standard 0.35mm or 0.50mm laminations due to reduced eddy current losses. Actual core loss depends on material grade and operating frequency.
Source: Reenives internal testing data, 2024.
Q5: Do you offer epoxy powder coating for CRNGO stamped laminations?
A: Yes. We use imported epoxy powder coating equipment to apply a uniform, pinhole-free insulation layer on individual laminations. This coating improves corrosion resistance, enhances wire adhesion, and protects against moisture — critical for agricultural and marine drones.
Source: Reenives production specification.
Q6: Can you develop custom 0.2mm CRNGO stamped laminations for my specific drone motor?
A: Absolutely. We support private mould development. Provide us with your required outer diameter, inner diameter, stack length, slot number, tooth profile, and any mounting features. Our R&D team will design and produce custom stamping dies and laminations tailored to your motor. Tooling lead time is typically 15–25 days.
Source: Reenives custom development process.
Summary — Get Your CRNGO Stamping Quote Today
Ready to Improve Your Drone Motor Performance with Precision 0.2mm CRNGO Stamping?
Reenives is a reliable 0.2mm CRNGO stamping stator supplier with 4 years of manufacturing experience, 100+ R&D patents, and 3 production bases. We serve 1000+ enterprises worldwide with high-precision CRNGO stamping for drone and BLDC motors.
📦 Bulk purchasing · 🔧 Private mould development · 🧪 Free samples
🌐 Official Website: www.reenives-bldcmotor.com
📧 Email: linda_reenives@163.com
Contact us now for a free sample and tailored solution for your production scenario.
Dongguan Runlu Motor Technology Co., Ltd.
Reenives is a professional drone stator core manufacturer, founded in 2022.
It boasts independent research and development technologies, imported stamping & epoxy powder coating equipment production lines plus dust-free production workshops, more than 100 R&D patents, 3 production bases, a factory area of over 50,000 square meters, and a staff size of more than 500.
From production to sales, we support bulk purchasing, private mould develop, and samples making, and can provide tailor-made perfect solutions for your production and usage scenarios. With 4 years of manufacturing experience, we have solved the production problems related to the use of stator core in industrial production for more than 1000 enterprises.
We can ship globally (with complete export qualifications). Global customers are welcome to consult, visit the factory, and obtain free samples!
Reenives Runlu Motor CRNGO Stamping
Drone Motor Electrical Lamination Stamping Supplier
Drone Motor Electrical Stamping and Lamination Supplier
Related Article
