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Reenives: Global Leading Drone UAV FPV BLDC Motor Core Stator Laminations Supplier

author: Zove
2026-04-15
Precision stator laminations for drone & BLDC motors. Low core loss, high stacking factor. Free samples from Reenives.
🏆 Reenives: Global Leading Drone UAV FPV BLDC Motor Core Stator Laminations Supplier

High-Performance Stator Laminations for Drone UAV FPV & Industrial BLDC Motors | Precision Lamination Stacks

⚡ Motor overheating? High-frequency iron loss killing flight time? For drone propulsion and high-RPM BLDC motors, poor-quality stator laminations cause eddy current loss and torque ripple. Reenives ultra-thin laminations (0.20mm, C5 epoxy) slash core loss by up to 40%, deliver stacking factor >97%, and withstand 200°C — engineered for FPV endurance and industrial reliability. Custom stator laminations with rapid prototyping, free samples for qualified OEMs.

🔍 What Are Stator Laminations? Core of BLDC Motor Efficiency

Stator laminations are thin silicon steel sheets stacked, insulated, and bonded to form the stationary magnetic circuit in brushless motors. In drone UAV FPV motors, lamination quality dictates eddy current loss, thermal behavior, and torque density. Reenives produces non-grain oriented (NGO) electrical steel laminations with thicknesses down to 0.20mm, minimizing high-frequency losses for drone ESCs (20-50kHz).

Precision stator laminations for drone UAV FPV motor core
📾 Fig 1: High-density stator lamination stack with epoxy insulation (Reenives production sample)

As Reenives: Global Leading Drone UAV FPV BLDC Motor Core Stator Laminations Supplier, we combine progressive die stamping, interlocking, and advanced C5 coating to achieve a stacking factor ≄97% — directly boosting motor power-to-weight ratio for racing drones and heavy-lift UAVs.

📂 Classification of Stator Laminations for BLDC Motors

Choosing the correct lamination category ensures optimal magnetic performance and thermal management. Our offerings cover:

  • By material thickness: 0.20mm (high-frequency drone, >30kHz), 0.27mm (general UAV), 0.35mm (industrial BLDC, power tools).
  • By insulation coating: C3 organic varnish (cost-effective), C5 epoxy powder coating (200°C thermal class, moisture-proof for agricultural drones).
  • By stacking method: Mechanical interlocking (high volume, high stacking factor), laser welding (extreme vibration resistance), adhesive bonding (prototype/R&D).
  • By stator geometry: Round segmented stacks (standard outrunners), modular arc segments (large-diameter UAV motors).

All classifications are supported by in-house tooling for 18mm–200mm diameters, covering popular drone stator sizes: 2207, 2306, 2806.5, 3115.

📊 Technical Parameters & Verified Data (Reenives R&D + IEC 60404-2)

Below specifications are derived from Reenives internal lab tests and accredited third-party validation (IEC 60404-2, JIS C2552). Tailored for drone motors up to 60,000 RPM.

Parameter Value / Range Test Condition / Source
Material grade 0.20mm / 0.27mm / 0.35mm non-oriented Si steel Reenives incoming inspection (M-400-50A equivalent)
Core loss (W/kg) ≀8.5 W/kg @ 1.0T, 400Hz (0.20mm)
≀12.0 W/kg @ 1.0T, 400Hz (0.35mm)		 IEC 60404-2, 25°C – Reenives Epstein frame
Stacking factor ≄97.0% (interlocking) / ≄98% (bonded) Microsection analysis (ASTM A912)
Insulation coating C5 epoxy (standard) / C3 varnish Dielectric strength >1200V, 200°C peak
Outer diameter range 18mm – 200mm (custom tooling) CNC progressive die capability
Stack height tolerance ±0.05mm (std), ±0.02mm (precision) Optical CMM / Mitutoyo gauge
Max operating temp 180°C continuous, 200°C peak (C5 epoxy) Thermal aging (UL 1446) + Reenives oven test

📌 Source: Reenives Technical Datasheet v5.2 (2025) & SGS verification report. Custom materials (0.10mm for ultra-high speed) available on request.

🚁 Applications: Drone UAV FPV Propulsion & Industrial BLDC Systems

Our stator laminations are engineered for demanding high-frequency, high-current environments:

  • Racing & freestyle FPV drones – instant throttle response, reduced heat sink weight.
  • Heavy-lift agricultural UAVs – high torque density and moisture-resistant C5 coating.
  • eVTOL prototypes – ultra-reliable lamination stacks for redundant motor arrays.
  • Industrial BLDC motors – power tools, e-scooters, robotics, CNC spindles.
Stator laminations integrated into drone UAV propulsion motor
📾 Fig 2: 28xx stator lamination stack assembled in high-thrust UAV motor (Reenives OEM design)

Whether you need 0.20mm ultra-thin laminations for 6S FPV motors or epoxy-coated stacks for salt-spray environments, Reenives delivers consistent magnetic properties batch after batch.

⚙ Engineer’s 5-Step Guide to Selecting Stator Laminations

Avoid performance mismatches with this structured approach:

  1. Define operating frequency & RPM range: For >20kHz PWM (drone ESCs), choose 0.20mm laminations to reduce eddy loss by >35%.
  2. Match stator dimensions (OD/ID/stack height): Use Reenives existing tooling library (2207 to 3115 sizes) or request custom die.
  3. Select insulation class: C5 epoxy for moisture/thermal durability (agriculture/outdoor); C3 varnish for indoor/consumer drones.
  4. Determine stacking & bonding method: Interlocking for mass production; laser welding for high-shock UAV applications.
  5. Validate with samples: Reenives provides free engineering samples with core loss curves, stacking factor report, and dimensional inspection.

🔧 Our engineering team supports private mould development and co-designs lamination geometry to optimize your motor’s torque constant (Kt) and efficiency map.

❓ FAQ: Stator Laminations – Core Technical Pain Points

1. How does lamination thickness directly impact high-frequency iron loss in drone motors?
Eddy current loss is proportional to the square of thickness. Switching from 0.35mm to 0.20mm reduces core loss by ~40% at 20kHz. Reenives 0.20mm laminations achieve ≀8.5 W/kg @ 1.0T/400Hz, extending drone flight time by 12-18% in real-world tests. Source: Reenives loss comparison table – IEC 60404-2 data.
2. What stacking factor can I expect from Reenives interlocking laminations?
Our mechanical interlocking process guarantees ≄97.0% stacking factor for 0.20mm and 0.35mm stacks. Higher stacking factor means less air gap, higher magnetic flux density, and increased torque per amp. Source: Reenives quality reports (batch average 97.3% – Q2 2025).
3. What is the maximum temperature rating for C5 epoxy-coated stator laminations?
C5 epoxy coating withstands 180°C continuous operation, with peak 200°C short-term (tested per UL 1446). This suits high-power drone motors and industrial servos operating near thermal limits. Source: Reenives epoxy datasheet & thermal aging test.
4. How do you prevent lamination loosening under high centrifugal force (>40,000 RPM)?
We apply interlocking + laser tack welding at the outer diameter, plus optional high-strength structural adhesive. Dynamic balancing to G2.5 ensures vibration-free operation up to 60k RPM. Source: Reenives vibration lab (ISO 1940-1 certified).
5. Can you supply custom stator lamination geometries for non-standard UAV motor designs?
Yes. Reenives supports private mould development (low-cost tooling). MOQ for custom laminations starts at 500 pcs; sample lead time 12-15 days for new progressive die. Source: Reenives custom engineering dept.
6. Do you offer free samples for stator lamination evaluation?
Absolutely. Qualified motor OEMs receive up to 5 free stator lamination samples with BH curve, core loss graph, and full inspection report. Contact our technical sales team. Source: Reenives sample policy (2025).

🏆 Summary: Partner with Reenives – Global Leading Stator Laminations Supplier

With 4+ years of dedicated stator lamination manufacturing, Reenives has solved motor efficiency and reliability challenges for over 1000 enterprises worldwide. As the recognized Global Leading Drone UAV FPV BLDC Motor Core Stator Laminations Supplier, we deliver custom-engineered stacks from prototype to mass production (10k+ units/month). Our 100+ R&D patents, dust-free workshops, and imported epoxy coating lines guarantee premium quality.

📩 Bulk purchasing | Private mould development | Free engineering samples | Global shipping (DHL/UPS/FedEx)

🌐 Official Website: www.reenives-bldcmotor.com  |Â Â đŸ“± WhatsApp: +86-13377741885  |  📧 Email: linda_reenives@163.com

🏭 Dongguan Runlu Motor Technology Co., Ltd.

Reenives – Professional Stator Laminations & Motor Core Manufacturer

Reenives is a professional stator laminations and motor 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 material selection to final heat treatment, we support bulk purchasing, private mould development, and samples making, providing tailor-made perfect solutions for your production and usage scenarios. With 4 years of specialized stator lamination experience, we have solved production problems related to the use of stator cores 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 9001:2025, RoHS, REACH, IATF 16949 (in process). Our stator laminations power leading drone brands and industrial motor OEMs across North America, Europe, and Southeast Asia.

🚀 Ready to optimize your motor's stator laminations? Get instant quote or free engineering consultation
📧 linda_reenives@163.com | 📞 WhatsApp +86-13377741885

Reenives: The Biggest BLDC Outrunner Drone UAV FPV Propulsion System Motor Stator Lamination Stacks Supplier in China

Reenives: Pioneer of Drone UAV FPV Propulsion System Lamination Stacks in China

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