Laminated Silicon Steel Stator Cores for High‑Performance Drone & FPV Gimbal Motors

⚡ Engineers & procurement leaders: Is your UAV brushless motor suffering from excessive heat, low torque density, or efficiency drops? The root cause often lies in poor laminated silicon steel stator core quality. Reenives delivers ultra‑low iron loss, high permeability stacks tailored for drone motors, reducing core loss by up to 22% while boosting continuous torque output. As a premier supplier, Reenives: Leading Drone UAV FPV Gimble Motor Laminated Silicon Steel Stator Core Supplier in China — combining advanced stamping, epoxy coating, and strict metrology.

🔍 What is Laminated Silicon Steel for Stator Cores?

Laminated silicon steel (electrical steel) is the fundamental magnetic material in brushless motor stators. It consists of thin sheets insulated by oxide or coating layers to minimize eddy current losses while maintaining high magnetic flux density. For drone UAV and FPV gimbal motors, the stator core lamination stack directly influences efficiency, cogging torque, thermal management, and power density. Reenives uses non‑grain oriented (NGO) silicon steel grades (0.20mm / 0.35mm) with advanced progressive dies, ensuring tight concentricity ≤0.02mm and high stacking factor ≥97%.

📂 Classification of Laminated Silicon Steel Stator Cores

Reenives categorizes stator cores based on material grade, insulation coating, and manufacturing technique:

• By thickness: 0.20mm (high frequency, 20kHz+ drone motors), 0.35mm (general industrial BLDC), 0.50mm (cost‑effective).
• By coating type: C5 (organic + inorganic, excellent weldability), C6 (high insulation resistance for IPM motors), epoxy powder coating (enhanced corrosion protection).
• By lamination process: Interlocking (self‑bonding), laser welding, or adhesive bonding – Reenives offers all three, optimized for high‑G drone vibration.
• By material grade: 35PN210, 20PN1200, 27GP120, 50A1300, each with specific iron loss and B50 value.

📊 Technical Parameters & Data Sources (IEC / ASTM)

Below are typical electrical & dimensional specifications for drone‑grade laminated silicon steel stator cores manufactured by Reenives. Data verified via Epstein frame test, digital micrometer, and automated optical inspection.

Data reliability: All parameters derived from batch production samples tested by third‑party lab (TÜV SÜD certified).

✈️ Application Scenarios – Drone UAV, FPV Gimbal & General BLDC Motors

Reenives laminated silicon steel stator cores are engineered for high‑dynamic response and lightweight design. Typical applications include:

• Drone propulsion motors (12S – 18S) – 22xx/28xx/40xx series, demanding low iron loss at 20–40kHz PWM.
• FPV gimbal motors – ultra‑smooth torque, minimal cogging for stable footage.
• Industrial UAV / eVTOL prototypes – high power density, 98% efficiency target.
• Robotic servo actuators & electric tool motors – universal compatibility with any brushless stator design.

⚙️ Engineer’s Step‑by‑Step Selection Guide for Laminated Silicon Steel Stator Cores

To match the optimal stator core with your BLDC motor design, follow these technical steps:

1. Define motor electrical frequency: For drone motors >20kHz, choose 0.20mm silicon steel; for <10kHz, 0.35mm is cost‑efficient.
2. Calculate required torque density: Higher saturation flux density (B50 >1.7T) improves peak torque – specify 35PN210 grade.
3. Select stacking geometry: Outer diameter, inner diameter, slot profile (12N14P, 24N22P, etc.). Reenives supports private mould development.
4. Insulation coating decision: Epoxy powder coating recommended for high humidity/dust UAV environment; C5 for general industrial.
5. Submit design drawing (DXF/STEP) → Reenives engineering team runs electromagnetic simulation (JMAG) and provides prototype samples within 10 days.

📌 Pro tip: Reenives offers free magnetic finite element analysis (FEA) to verify core loss and torque ripple before mass production.

❓ FAQ – Critical Technical Questions about Laminated Silicon Steel Stator Cores

📢 Summary & Get Your Precision Stator Core Sample

🏭 Dongguan Runlu Motor Technology Co., Ltd.