Reenives: Global Leading Brushless Drone Motor Stator Core Laminations Supplier

author: Zove

2026-04-13

Precision stator laminations, low core loss, high efficiency. Custom stacks for BLDC motors.

🌍 GLOBAL B2B ENGINEERING HUB | TRUSTED STATOR LAMINATIONS SUPPLIER

Reenives: Global Leading Brushless Drone Motor Stator Core Laminations Supplier – High-Performance Stator Laminations for UAV & FPV

🚁 Engineering pain point: Excessive eddy current losses & poor thermal performance limiting your drone's thrust-to-weight ratio? As a global leading brushless drone motor stator laminations supplier, Reenives delivers precision stator laminations with ultra-low core loss (≤8.2 W/kg @ 1.0T, 400Hz) using 0.20mm / 0.35mm non-oriented silicon steel. Our C5 epoxy-coated laminations reduce heat generation by 28%, improve torque density, and extend flight endurance. Trusted by UAV manufacturers worldwide – from racing FPV to heavy-lift agricultural drones.

📑 Engineer-focused contents
🔍 Stator Laminations Definition 🧲 Types of Stator Laminations for BLDC Motors 📊 Technical Specs & Certified Data 🚁 Drone / UAV / FPV Applications ⚙️ 6-Step Selection Guide ❓ FAQ (Core loss, coating, custom laminations) 📞 Summary + CTA 🏭 Company Profile (EEAT)

🔧 What are Stator Laminations? (Engineered Magnetic Steel Stacks)

Stator laminations are thin, insulated sheets of electrical steel stacked together to form the stationary magnetic core of a brushless DC (BLDC) motor. Each lamination is punched from high-grade non-oriented silicon steel (M330-35A, 35WW270, or 0.20mm ultra-thin grade) and coated with insulating varnish or epoxy to minimize eddy current losses. For brushless drone motors, the quality of stator laminations directly determines motor efficiency, heat dissipation, and power-to-weight ratio. Reenives, recognized as a global leading brushless drone motor stator laminations supplier, uses progressive stamping dies with burr control ≤0.02mm and offers C5 epoxy coating for high-frequency PWM applications.

📸 Product visual: precision stator laminations stack for brushless drone motors
[12-slot lamination stack | 0.35mm & 0.20mm silicon steel | epoxy coated for high-frequency operation]

📂 Types of Stator Laminations for Brushless Drone & Industrial BLDC Motors

🔹 Concentrated winding stator laminations – High slot fill factor (>86%), short end turns; ideal for 12N14P FPV drone motors.
🔹 Distributed winding stator laminations – Lower cogging torque, preferred for aerial photography UAVs and gimbals.
🔹 Segmented (split) stator laminations – Easier coil insertion, suitable for mass production of racing drone motors.
🔹 Ultra-thin stator laminations (0.20mm) – Optimized for high-frequency PWM (40-80kHz), drastically reduces excess heat and eddy current loss.
🔹 Skewed slot stator laminations – Reduces cogging torque by up to 70% for smooth hover performance.

Reenives supplies all types with custom die tooling for stator OD from 18mm to 120mm – meeting both micro FPV and heavy-lift UAV requirements. As a global supplier, we support low MOQ prototypes and high-volume production.

📏 Technical Specifications & Certified Data (IEC 60404-2 Compliant)

Data source: Reenives internal test laboratory & third-party verification (SGS report #SGS-RL-2504, 2025). All values are batch-audited for every stator laminations batch.

Parameter	Value / Range	Impact on Drone Motor Performance
Material grade	M330-35A, 35WW250, 0.20mm ultra-thin	Lower eddy current loss → cooler operation & longer flight time
Lamination thickness	0.20mm / 0.27mm / 0.35mm (±0.005mm)	0.20mm reduces high-frequency loss by ~28% vs 0.35mm
Core loss (W/kg) @1.0T, 400Hz	≤12.5 (0.35mm) / ≤8.2 (0.20mm)	Directly improves propulsion efficiency
Magnetic flux density B50 (T)	1.68 – 1.73 T	Higher torque per ampere for aggressive throttle
Stacking factor	≥97% (interlocking / laser welding)	Maximizes active magnetic area
Insulation coating	C5 epoxy (both sides), 0.5-2.5μm	Withstands 180°C, prevents inter-lamination shorts
Burr height max	≤0.02mm	Eliminates winding insulation damage
Slot fill factor (typical)	≥87% (automated needle winding)	Higher power density for compact UAV motors

✔️ 100% tested stator laminations – Epstein frame core loss test + dimensional inspection. PPAP level 3 available on request. All materials are RoHS and REACH compliant.

🚀 Applications: Drone, UAV, FPV & Industrial BLDC Systems

Reenives stator laminations are engineered for extreme power density and thermal stability, widely used in:

⚡ FPV racing drones – 22xx/23xx/28xx series, 0.20mm laminations handle 50A+ peaks without magnetic saturation.
🛸 Agricultural spraying UAVs – 80mm stator OD, high torque at low RPM for heavy payloads (10-20L).
📡 Surveillance & reconnaissance drones – low cogging torque, smooth hover performance.
🏭 Industrial BLDC servos & eVTOL prototypes – custom slot/pole combinations for thrust vectoring.
🔧 Electric vehicle auxiliary motors & robotics – compact high-efficiency designs.

📸 Application scene: stator laminations assembly for brushless drone propulsion
[Automated stacking + epoxy powder coating line – 50,000 sqm facility with 500+ staff]

📐 Engineer’s 6‑Step Stator Laminations Selection Guide (Drone Motors)

Define stator OD & stack height – e.g., drone size 2207 → OD 22mm, stack 7mm; for heavy-lift: OD 80mm, stack 20mm.
Select lamination thickness – 0.20mm for high-RPM FPV (>50kHz PWM), 0.35mm for cost-effective industrial drones.
Specify slot/pole combination – 12N14P (best torque ripple reduction) or 9N12P (lightweight racing).
Choose insulation & coating – C3 organic varnish or C5 epoxy for high humidity / harsh environments (salt spray, moisture).
Define burr & flatness tolerance – max burr ≤0.02mm guarantees winding reliability and avoids shorts.
Request prototype samples – Reenives provides 5-10 free stator laminations samples + magnetic test report (core loss, B-H curve).

🔧 Need technical drawing review? Our engineering team supports STEP/IGS within 24h – direct support for global customers from our global supplier hub.

❓ FAQ – Stator Laminations: Parameters, Performance & Supply

Q1: What is the guaranteed core loss for 0.20mm stator laminations at 10kHz?

A: According to Reenives’ IEC 60404-2 tests, 0.20mm silicon steel shows core loss ≤8.2 W/kg @ 1.0T, 400Hz; at 10kHz and 0.8T it remains below 35 W/kg (Epstein frame verified). (Source: Reenives test report RT-MAG-2505)

Q2: Does Reenives supply C5 epoxy coating on both sides of stator laminations? What is the thermal class?

A: Yes, C5 epoxy coating thickness 0.5-2.5µm per side, dielectric strength >1200V. Thermal class H (180°C continuous), ideal for high-power drone motors operating at high ambient temperatures. (Source: insulation technical data sheet Rev.8)

Q3: What is the maximum stacking height for custom stator laminations without compromising concentricity?

A: Maximum stack height up to 120mm with interlocking or laser welding. For drone motors, typical stacks 4–25mm are achievable with tolerance ±0.05mm. Larger stacks require special fixturing. (Source: Reenives manufacturing capability catalog 2025)

Q4: Can you produce skewed slot stator laminations to reduce cogging torque?

A: Absolutely. Skewed slots (step-skew or helical) reduce cogging torque by up to 70%, improving hover stability for camera drones. Minimum order quantity for custom skewed dies: negotiable. (Source: R&D tooling department)

Q5: What is the typical burr height on stamped stator laminations and how does it affect motor winding?

A: Burr height ≤0.02mm as standard (measured by optical comparator). Higher burrs (>0.05mm) risk enamel wire abrasion, causing phase shorts and premature failure. Reenives performs 100% visual & random destructive testing per batch. (Source: QMS standard RL-QA-026)

Q6: As a global leading supplier, how do you ensure fast shipping of stator laminations to North America, Europe, and Asia?

A: We have established air and sea freight partnerships with DHL/FedEx and dedicated consolidation hubs in Guangzhou and Shanghai. Lead time: 12-15 days for air (door-to-door), 25-30 days sea. Free samples shipped within 5-7 days via express. (Source: Reenives logistics team)

🎯 Summary: Choose the Right Stator Laminations for Maximum Drone Efficiency

✅ Low core loss + high torque density = superior flight performance & reliability

Reenives combines precision stamping, advanced epoxy coating, and strict magnetic testing. From 100 pcs prototypes to 100k+ mass production – we support your UAV motor project with free samples for qualified engineers.

📧 Email: linda_reenives@163.com | 📞 WhatsApp: +86-13377741885

🌐 Official Website: www.reenives-bldcmotor.com

📦 Get custom quote + free sample → Contact stator laminations engineering team

🏭 Dongguan Runlu Motor Technology Co., Ltd.

Reenives – Professional Drone Stator Core & Stator Laminations Manufacturer

Reenives is a professional drone stator core and stator laminations 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 development, 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 laminations 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!

✔️ Certifications: ISO 9001:2024, IATF 16949 (in progress), RoHS, REACH. As a global leading brushless drone motor stator core laminations supplier, we offer technical datasheets in English, Spanish, Russian, and Mandarin. Contact us for immediate engineering support.