Reenives: Valuable Brushless Motor Stator Core Laminations Manufacturer in China
Motor Stator Laminations for High‑Efficiency Brushless UAV & FPV Motors
⚡ Reenives: Valuable Brushless Motor Stator Core Laminations Manufacturer in China
🔧 Excessive eddy current losses causing overheating? Poor stator lamination quality limiting your drone motor's power density? The solution lies in precision-engineered motor stator laminations. Reenives delivers ultra-thin 0.20mm silicon steel laminations with advanced epoxy coating, optimized for brushless motors used in FPV racing, heavy‑lift UAVs, and industrial BLDC applications. As a Valuable Brushless Motor Stator Core Laminations Manufacturer in China, we combine 100+ R&D patents, imported stamping lines, and a 50,000㎡ dust‑free facility to solve real engineering pain points — reduced core losses, superior thermal management, and maximized torque density.
🔍 1. What Are Motor Stator Laminations?
🔍 What Are Motor Stator Laminations? (Core of BLDC Stator)
Figure 1: High-quality motor stator laminations (0.20mm silicon steel) with epoxy insulation, designed for UAV brushless motors.
Motor stator laminations are thin, insulated electrical steel sheets stacked and bonded to form the stationary core of a brushless DC motor. These laminations support the copper windings and channel magnetic flux while drastically reducing eddy current losses. For drone and FPV brushless motors, lamination thickness (0.15mm–0.35mm), steel grade, and coating directly determine efficiency, heat generation, torque output, and flight endurance. Reenives uses ultra-thin non-grain oriented (NGO) electrical steel and proprietary epoxy powder coating to achieve industry-leading magnetic performance for reliable motor stator cores.
📂 Classification of Motor Stator Laminations for Brushless Drone Motors
| Classification | Options | Benefits for UAV/FPV Brushless Motors |
|---|---|---|
| 📌 Lamination Thickness | 0.15mm, 0.20mm, 0.27mm, 0.35mm | Thinner = lower eddy loss @ high frequency → cooler operation, longer flight time |
| 🔩 Steel Grade | M270-35A, B35A230, 35WW250, high-permeability grades | Higher magnetic flux density → more torque per ampere |
| 🎨 Insulation Coating | C3 (organic), C5 (inorganic), Epoxy powder coating | Epoxy: >1000V dielectric, 180°C thermal class, corrosion resistant |
| ⚙️ Manufacturing Process | Progressive die stamping, laser cutting, wire EDM | Progressive stamping ensures ±0.02mm tolerance for consistent air gap |
| 🔗 Stacking Method | Interlocking, laser welding, epoxy bonding | Epoxy bonding increases stacking factor (>97%) and reduces inter-laminar shorts |
📊 Technical Parameters & Engineering Data (IEC / Reenives Lab)
All data measured per IEC 60404-2 and verified by Reenives in-house R&D center (accredited). Values represent typical performance for drone-grade motor stator laminations (OD range: 16mm – 150mm).
| Parameter | Value Range (0.20mm grade) | Test Condition / Source |
|---|---|---|
| Iron loss (W/kg) @ 1.0T, 400Hz | ≤ 9.5 W/kg | Epstein frame – Reenives QA report 2025 |
| Iron loss (W/kg) @ 1.5T, 1000Hz | ≤ 32 W/kg | High-frequency tester (IEC 60404-10) |
| Magnetic flux density B50 (T) | 1.65T – 1.72T | Epstein test @ 5000 A/m |
| Stacking factor | ≥ 97% (epoxy bonded) | Optical measurement & weight method |
| Insulation coating withstand voltage | > 1000V (epoxy coating) | ASTM D149 |
| Thermal class | Class H (180°C continuous) | Thermal aging test (IEC 60085) |
| Dimensional tolerance (ID/OD) | ±0.02 mm | CMM inspection – ISO 2768-m |
🔬 Data source: Reenives internal lab (ISO 17025 calibration) & third-party validation (SGS). Batch-to-batch consistency via ISO 9001:2025 processes.
🚁 Applications – From FPV Racing to Industrial Brushless Motors
Our motor stator laminations power critical brushless motion applications worldwide:
- ✈️ FPV Racing & Freestyle Drones – Ultra-thin 0.20mm stator laminations sustain >60,000 RPM with minimal heat.
- 🚁 Heavy-Lift UAVs (Agriculture / Logistics / Surveillance) – High torque density laminations for efficient long-endurance flight.
- 🤖 Robotics & Servo Motors – Precise geometry for smooth motion control and low cogging torque.
- 🔧 Industrial BLDC pumps, compressors, e-scooters & e-bikes – Reliable performance under continuous high-load operation.
Figure 2: Custom motor stator laminations integrated into a high-power UAV brushless propulsion system.
📐 Engineering Selection Guide – 5 Steps to Optimal Motor Stator Laminations
Follow this structured methodology to specify the best motor stator laminations for your brushless motor design (based on Reenives application engineers' recommendations):
- Step 1 – Define motor electrical frequency & RPM range: For >1 kHz (FPV racing), select 0.15–0.20mm laminations. For industrial UAV (<800 Hz), 0.27–0.35mm is cost-effective.
- Step 2 – Calculate core loss budget: Use iron loss curves (provided by Reenives) to avoid thermal runaway. Target total core loss <5% of rated power.
- Step 3 – Choose insulation coating type: Epoxy powder coating (Reenives standard) offers best thermal stability and dielectric strength for high-voltage ESCs.
- Step 4 – Specify stacking factor & bonding method: Request ≥97% stacking factor with epoxy bonding to maximize magnetic flux.
- Step 5 – Prototype & validate: Order custom samples (5-7 days), perform back-EMF and temperature rise tests. Reenives supports private mould development with low MOQ.
✅ Pro tip: Provide your target stator slot dimensions and winding configuration – our engineers will recommend optimal lamination tooth profile and material grade for valuable motor stator laminations.
❓ FAQ – Engineer's Motor Stator Lamination Technical Pain Points
📢 Summary & Get Your Custom Motor Stator Laminations
Selecting high-quality motor stator laminations is the most critical decision for achieving superior power density, thermal stability, and flight time in brushless UAV and FPV motors. Reenives combines ultra-thin silicon steel, advanced epoxy coating lines, and dust-free production to deliver stator laminations that outperform industry standards. As a Valuable Brushless Motor Stator Core Laminations Manufacturer in China, we offer rapid prototyping, private mould development, and global shipping with full export qualifications.
🚀 Ready to upgrade your brushless motor performance?
Request free engineering consultation, technical datasheets, or custom samples.
📧 Contact Reenives Now🌐 Official Website: www.reenives-bldcmotor.com
📞 WhatsApp: +86-13377741885 | 📩 Email: linda_reenives@163.com
🏭 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!
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