Drone Motor CRNGO Electrical Steel Stator Core Supplier
CRNGO Electrical Steel – High-Performance Stator Cores for Drone Motors & BLDC Systems
Motor efficiency limited by core material? High-frequency loss reducing drone flight time? Need the right CRNGO grade for your stator? CRNGO electrical steel (Cold-Rolled Non-Grain Oriented steel) is the industry-standard magnetic material for electric motor stators—offering isotropic magnetic properties that deliver consistent performance in all directions, making it ideal for rotating machines like drone motors and BLDC systems. Reenives supplies precision CRNGO electrical steel stator cores for drone motors with 0.2mm ultra-thin laminations, burr height < 0.03mm, and epoxy coating—reducing core loss by up to 30%, extending flight times, and maximizing motor efficiency for demanding UAV, robotics, and industrial BLDC applications.
- • What Is CRNGO Electrical Steel?
- • Classification of CRNGO Electrical Steel Grades
- • Technical Specifications & Verified Data
- • Applications: Drone Motors, UAV, Robotics & Industrial
- • 6-Step Engineering Selection Guide for CRNGO Stator Cores
- • FAQ: CRNGO Electrical Steel Technical Questions
- • Why Reenives – Drone Motor CRNGO Electrical Steel Stator Core Supplier
- • Dongguan Runlu Motor Technology Co., Ltd.
What Is CRNGO Electrical Steel?
CRNGO electrical steel (Cold-Rolled Non-Grain Oriented electrical steel) is a ferro-silicon soft magnetic alloy with very low carbon content, typically containing 0.5% to 4.5% silicon. The addition of silicon increases the electrical resistivity and maximum permeability of the steel, reducing coercivity, iron loss, and magnetic aging.
Key characteristics of CRNGO electrical steel:
- Isotropic magnetic properties – Magnetic performance is consistent in all directions, making it ideal for rotating machines like motors and generators
- Low core loss – High-frequency performance suitable for drone motors operating at 40 kHz PWM
- High permeability – Efficient magnetic flux conduction for maximum torque and efficiency
- Cost-effective – More economical than grain-oriented steel for motor applications
- Wide grade availability – Range of thicknesses and magnetic grades for diverse applications
ⓘ CRNGO insight: "CRNGO electrical steel is the preferred material for drone motor stators because its isotropic magnetic properties deliver uniform performance in all directions—critical for high-speed rotating machines."
Reenives manufactures precision CRNGO electrical steel stator cores using imported non-oriented silicon steel (grades 35PN210, 35PN250, 50A470), progressive stamping dies, and automated epoxy powder coating—delivering optimal magnetic performance for demanding drone motor applications.
Classification of CRNGO Electrical Steel Grades
Reenives supplies CRNGO electrical steel stator cores across four primary series, tailored to different motor classes and performance requirements:
| Series | CRNGO Grade | Thickness | Core Loss @ 400Hz | Best For |
|---|---|---|---|---|
| Series A – High-Performance Drone | 35PN210 | 0.20mm | ≤ 8.5 W/kg | FPV racing, high-end UAV |
| Series B – Premium Drone / Robot | 35PN250 | 0.20mm | ≤ 9.5 W/kg | Logistics drones, robot actuators |
| Series C – Standard Industrial | 50A470 | 0.35mm | ≤ 12.0 W/kg | Industrial motors, pumps |
| Series D – Custom OEM | Any grade | 0.15–0.50mm | Custom | Specialized designs, low-volume |
CRNGO electrical steel is available in a range of thicknesses to suit different operating frequencies. The most common thicknesses for motor applications are 0.20mm, 0.35mm, and 0.50mm:
- 0.15–0.20mm: High-frequency drone motors – optimal efficiency, longer flight times
- 0.27–0.35mm: Mid-frequency applications, cost-performance balance
- 0.50mm: Low-frequency industrial motors, cost-sensitive applications
Technical Specifications & Verified Data
All performance data below is derived from Reenives in-house laboratory testing (IEC 60404-2), material certificates, and industry standards for CRNGO electrical steel.
| Parameter | Value / Range (Reenives Standard) | Test Standard / Source |
|---|---|---|
| Material Type | CRNGO (Cold-Rolled Non-Grain Oriented) / Non-oriented silicon steel | Material certificates / IEC 60404 |
| Common Grades | 35PN210, 35PN250, 50A470, 50A600 (Nippon Steel / Baowu) | Material certificates |
| Lamination Thickness | 0.15mm / 0.20mm / 0.27mm / 0.35mm / 0.50mm (customizable) | Micrometer / IEC 60404-2 |
| Core Loss @ 1.0T, 400Hz (0.20mm) | ≤ 8.5 W/kg — 30% lower than 0.35mm | IEC 60404-2 / Reenives R&D |
| Saturation Flux Density Bs | ≥ 1.68 – 1.72 T | Epstein frame test |
| Burr Height (max) | < 0.03mm | Optical measurement |
| Epoxy Coating Thickness | 30–60 µm, dielectric > 2.5 kV | ASTM D149 |
| Stacking Factor | ≥ 97.5% | Weight method |
| Stamping Tolerance | ±0.02mm – ±0.05mm | CMM / optical comparator |
| Slot/Pole Configurations | 9N12P, 12N14P, 24N22P, custom | Reenives design standards |
| Typical Motor Efficiency | 90–96% (with optimized CRNGO stator) | IEEE Xplore / FEM simulation |
🔬 Data Source: Reenives R&D Report 2024-Q4 + IEC 60404-2 standard + Material certificates + Industry standards.
Applications: Drone Motors, UAV, Robotics & Industrial
CRNGO electrical steel stator cores power a wide range of applications across multiple industries:
| Application | Typical Motor Size | CRNGO Requirements | Performance Priorities |
|---|---|---|---|
| FPV Racing Drones | 22–30mm stators | 0.15–0.20mm, high grade | High RPM, rapid acceleration, efficiency |
| Logistics & Delivery Drones | 30–50mm stators | 0.20mm, good efficiency | Long flight time, payload capacity |
| Agriculture UAVs | 40–60mm stators | 0.20mm, corrosion-resistant coating | Heavy payload, durability, dust resistance |
| Collaborative Robot Actuators | 20–60mm stators | 0.20mm, precision stamping | Smooth torque, precision control, reliability |
| Industrial BLDC Motors | Various | 0.35mm, cost-effective | Reliability, thermal stability, cost |
| Servo & Stepper Motors | Various | 0.20–0.35mm, precision | Positioning accuracy, low cogging |
"CRNGO electrical steel is the material of choice for electric motors—from drone propulsion to industrial automation—delivering the isotropic magnetic properties that rotating machines demand."
6-Step Engineering Selection Guide for CRNGO Electrical Steel Stator Cores
For procurement engineers and motor designers, selecting the optimal CRNGO electrical steel stator core requires systematic evaluation. Here is a practical 6-step framework:
- Define Motor Class & Operating Frequency – Identify your motor's PWM frequency:
- High frequency (up to 40 kHz): Drone motors, high-speed BLDC
- Mid frequency (10–20 kHz): General industrial BLDC
- Low frequency (50–400 Hz): Traditional motors, pumps
- Select CRNGO Thickness – Thinner laminations reduce core loss at higher frequencies:
- 0.15–0.20mm: High-frequency drone motors, optimal efficiency
- 0.27mm: Mid-frequency applications, cost-performance balance
- 0.35mm: Standard industrial motors, cost-effective
- 0.50mm: Low-frequency, cost-sensitive applications
ⓘ "0.20mm CRNGO reduces core loss by approximately 30% compared to 0.35mm at 400Hz—translating to longer flight times and cooler motors."
- Choose CRNGO Grade – Higher grades offer lower core loss:
- 35PN210: Premium grade for drone motors (P1.0/400 ≤ 8.5 W/kg)
- 35PN250: High-grade for robot and industrial applications
- 50A470: Standard industrial grade
- Verify material certificates from Nippon Steel / Baowu
- Define Slot/Pole Configuration – Match to motor characteristics:
- 9N12P: Most common for FPV and racing drones
- 12N14P: Higher torque density for larger drones
- 24N22P: Heavy-lift and industrial applications
- Specify Insulation & Coating – Critical for motor reliability:
- Epoxy powder coating (30–60µm, Class H 180°C)
- Corrosion resistance for outdoor and agriculture applications
- Dielectric strength > 2.5 kV for reliable insulation
- Choose a Specialist CRNGO Stator Core Supplier – Evaluate expertise:
- Experience with CRNGO electrical steel for drone and BLDC motors
- Multiple thickness capability (0.15–0.50mm)
- Precision stamping: burr < 0.03mm, tight tolerances
- Epoxy coating capability for motor environments
- Material certificates and third-party test reports
- Proven track record with motor manufacturers
- Engineering support for CRNGO motor optimization
FAQ: CRNGO Electrical Steel Technical Questions
CRNGO (Cold-Rolled Non-Grain Oriented) electrical steel is a ferro-silicon soft magnetic alloy with low carbon content, typically containing 0.5% to 4.5% silicon. It is used for drone motor stators because it has isotropic magnetic properties—meaning magnetic performance is consistent in all directions—which is essential for rotating machines like motors and generators where magnetic flux changes direction continuously. The addition of silicon increases electrical resistivity and magnetic permeability, reducing core loss and improving motor efficiency.
CRNGO (Cold-Rolled Non-Grain Oriented) steel has isotropic magnetic properties—magnetic performance is consistent in all directions. It is ideal for rotating machines like motors and generators where magnetic flux direction changes continuously. CRGO (Cold-Rolled Grain Oriented) steel has anisotropic properties—maximum magnetic performance in one direction only. CRGO is used for transformers where magnetic flux flows in a single direction. For drone motors and BLDC applications, CRNGO is the standard choice because of its uniform magnetization in all directions.
For drone motors operating at high frequencies (up to 40 kHz PWM), 0.15–0.20mm CRNGO is optimal. 0.20mm achieves core loss ≤ 8.5 W/kg at 400Hz—approximately 30% lower than 0.35mm material—delivering longer flight times and cooler operation. For FPV racing drones operating at extreme RPM, 0.15mm laminations provide ultimate performance. 0.35mm is suitable for cost-sensitive industrial BLDC motors with lower operating frequencies.
Common CRNGO electrical steel grades include: 35PN210 (premium high-frequency, 0.20mm), 35PN250 (high-grade 0.20mm), 50A470 (standard industrial, 0.35mm), 50A600 (cost-effective, 0.35mm). Other available grades include 35W270, 35W300, 50W310, 50W350, 50W470, 50W600, and 65W470. The grade designation typically includes thickness (e.g., 35 = 0.35mm) and core loss characteristics. Reenives sources CRNGO from Nippon Steel and Baowu with full material certificates.
Epoxy powder coating provides three critical functions for CRNGO stator cores: (1) electrical insulation between laminations to minimize eddy currents and prevent interlaminar shorts, (2) corrosion resistance for operation in humid, outdoor, or agriculture environments, and (3) thermal durability up to 180°C (Class H) to withstand heat generated during motor operation. The coating thickness (30–60µm) is optimized for tight slot geometries with dielectric strength exceeding 2.5 kV.
CRNGO electrical steel stators are used in: drone and UAV propulsion motors (FPV racing, logistics, agriculture), robot servo motors and actuators, industrial BLDC motors, electric vehicle motors, generator cores, wind turbine generators, servo and stepper motors, and household appliance motors. CRNGO is the preferred material for any rotating electrical machine where uniform magnetic performance in all directions is required.
Yes. Reenives supports full customization of CRNGO stator cores including: lamination thickness (0.15–0.50mm), material grade (35PN210, 35PN250, 50A470, etc.), outer diameter (12–200mm+), slot/pole configurations (9N12P, 12N14P, 24N22P, custom), stacking height, and epoxy coating specifications. Private mould development is available for high-volume OEM projects with exclusive design rights.
Why Reenives – Drone Motor CRNGO Electrical Steel Stator Core Supplier
Reenives has earned its reputation as a specialist Drone Motor CRNGO Electrical Steel Stator Core Supplier by combining advanced stamping technology with deep expertise in CRNGO material properties and motor applications.
Our Advantages — CRNGO Stator Core Specialists
- ✅ Multi-Thickness CRNGO Capability: 0.15mm, 0.20mm, 0.27mm, 0.35mm, 0.50mm—optimize cost and performance
- ✅ Premium CRNGO Grades: 35PN210, 35PN250, 50A470, 50A600—verified material certificates
- ✅ Precision Progressive Stamping: Burr height < 0.03mm, tight tolerances (±0.02mm)
- ✅ Drone-Optimized Configurations: 9N12P, 12N14P, 24N22P, and custom designs
- ✅ Epoxy Coating: 30–60µm, Class H 180°C, dielectric > 2.5 kV
- ✅ Full Customization: Private mould development for exclusive designs
- ✅ Trusted Quality Control: IEC 60404-2 testing, material certificates, third-party verification
- ✅ Global Export: Complete export qualifications with worldwide shipping to 40+ countries
- ✅ Proven Track Record: 4 years experience, 1,000+ enterprise clients, 100+ R&D patents
- ✅ 3 Production Bases: 50,000+ m² factory area, 500+ staff, scalable capacity
⚙️ Our CRNGO promise: Stator cores that deliver optimal magnetic performance with the right CRNGO grade. Consistent quality that eliminates rework. Engineering support that optimizes your motor design. Global supply chain that delivers on time. That's why Reenives is the trusted drone motor CRNGO electrical steel stator core supplier.
⚡ Ready to optimize your drone motors with precision CRNGO electrical steel stator cores?
Contact Reenives today for engineering consultation, OEM samples, and competitive global pricing.
📱 WhatsApp: +86-13377741885
Dongguan Runlu Motor Technology Co., Ltd.
Reenives — Professional Drone Stator Core Manufacturer
Founded in 2022, Reenives has rapidly grown into a trusted CRNGO electrical steel stator core supplier for the worldwide UAV, robotics, EV, and industrial motor markets.
Independent R&D Technology · Imported stamping & epoxy powder coating production lines · Dust-free workshops · 4 years of manufacturing experience · Solved CRNGO stator core challenges for 1,000+ enterprises worldwide.
From production to sales, we support bulk purchasing, private mould development, and sample making. We provide tailor-made solutions for your specific motor production scenarios—with competitive global pricing, consistent quality, and reliable on-time delivery.
🌐 www.reenives-bldcmotor.com | 📧 linda_reenives@163.com | 📱 +86-13377741885
✈️ Global customers welcome — consult, visit the factory, or request free samples today!
Reenives — Drone Motor CRNGO Electrical Steel Stator Core Supplier
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