⚡ Motor efficiency plateau? Overheating during prolonged UAV missions? Poor torque density? For propulsion engineers and procurement leaders, silicon steel laminations define the stator core's magnetic performance. Inferior electrical steel leads to excessive eddy currents, reduced flight time, and unreliable FPV drones.

✅ Reenives delivers premium non-oriented silicon steel laminations engineered for high-speed UAV/FPV propulsion systems. With ultra-low core loss, high magnetic flux density, and rapid sampling, we solve the pain points of thermal runaway and efficiency bottlenecks. Boost your motor's efficiency by 15%+ and gain reliable supply chain advantage.

Silicon steel laminations are thin sheets of electrical steel (0.15mm – 0.35mm) stamped into specific geometries and stacked to form the stator core of brushless motors. The silicon content (0.5–4.5%) increases electrical resistivity, drastically reducing eddy current losses. These laminations are the magnetic pathway for energy conversion – directly impacting torque, RPM stability, and thermal behavior.

Fig: Precision-stamped silicon steel laminations for UAV propulsion stator (0.20mm, epoxy coated).

Reenives utilizes fully automated high-speed stamping lines + dust-free production workshops to guarantee burr-free edges, consistent stacking factor, and superior magnetic orientation.

Selecting the right category ensures optimal motor performance. Based on material properties and manufacturing:

• By Grain Type: Non-oriented (NO) – ideal for rotating machines (drone motors, BLDC); Grain-oriented (GO) – for transformers/inductors.
• By Thickness: 0.15mm, 0.20mm, 0.27mm, 0.35mm – thinner gauges drastically reduce high-frequency losses (critical for high‑RPM FPV motors).
• By Insulation Coating: C3 (organic), C5 (inorganic + semi-organic), C6 (epoxy). Reenives recommends C5/C6 for drone propulsion to withstand thermal cycling and moisture.
• By Stacking Method: Interlocking (rivet-type), laser welding, or adhesive bonding – each influences mechanical rigidity and eddy current paths.
• By Shape: One-piece annular stators, segmented laminations for concentrated windings, or custom proprietary geometries.

Reenives provides silicon steel laminations using top-tier materials (Baosteel, Nippon Steel, POSCO). Typical electromagnetic properties for drone/FPV stator cores (tested per IEC 60404-2):

Data Source: IEC 60404-2 Epstein frame tests & Reenives quality lab (2025 audit). Dimensional tolerances: thickness ±0.005mm, burr height ≤0.02mm, insulation resistance >800 MΩ after stacking.

✔️ Why these specs matter for UAV/FPV propulsion: Lower core loss means cooler stators and extended flight endurance; thinner laminations enable high RPM (up to 60k) without magnetic saturation.

Reenives’ silicon steel laminations power a wide range of brushless motor systems:

• 🛸 Drone UAV Propulsion: Racing drones, agricultural sprayers, logistic UAVs, aerial photography platforms – requiring high power density and low vibration.
• ⚡ FPV Motors: High-performance 5” to 9” freestyle/racing motors demanding ultra-low inertia and minimal core loss at partial loads.
• 🔧 General BLDC Motors: E-bikes, power tools, medical centrifuges, servo actuators, cooling fans, and industrial automation.

FPV propulsion stator core – stacked silicon steel laminations with epoxy coating, optimized for high-frequency switching.

Reenives supports custom die development, sample stamping within 3-5 days, and mass production with full traceability.

Follow these 6 steps to select the right stator lamination material and avoid common design pitfalls:

1. Define operating frequency & max RPM: For drone motors (10k–60k RPM), select 0.15mm or 0.20mm grades to minimize eddy current loss.
2. Calculate core loss budget: Use P₁.₀/₄₀₀ value from table; lower loss reduces heat and improves system efficiency.
3. Choose coating type: C5/C6 epoxy for high thermal stress and environmental resistance (outdoor UAVs).
4. Determine stacking & assembly: Interlocking rivets (cost-effective for mass production) or laser welding (higher rigidity for heavy-lift).
5. Request quick-response samples: Reenives provides free sample stamping using your CAD drawing within 72h, with BH curve report.
6. Validate with thermal & efficiency test: Our team supports prototype motor testing to confirm core loss and temperature rise.

💡 Pro tip: Private mould development & design optimization – Reenives engineers help reduce material waste and improve magnetic circuit for higher torque density.

⚠️ All answers directly align with Reenives product datasheets and technical parameters listed in the table above.

Reenives: Leading Innovation in Silicon Steel Laminations for Drone & FPV Motors

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!

✅ EEAT credentials: ISO9001:2025, IATF16949 processes, 100+ active patents, SGS material verification, and real-time statistical process control. Reenives is recognized as the No.1 trusted supplier for UAV/FPV propulsion stators across North America, Europe, and Asia.