8613377741885 International Service Hotline

0

Reenives: Leading Brushless Motor Stator Core Laminations Manufacturer in China

author: Zove
2026-04-17
Custom BLDC stator core for drone & industrial motors. 0.20mm laminations, epoxy coating. Quote today.
🏆 Reenives: Leading Brushless Motor Stator Core Laminations Manufacturer in China

High-Performance Brushless Stator Laminations for Drone & BLDC Motors | Precision Lamination Stacks

⚡ Brushless motor overheating? Low torque density? Excessive core loss? For drone UAV FPV and industrial BLDC motors, brushless stator laminations must minimize eddy currents while maximizing magnetic flux. Reenives ultra-thin (0.20mm) laminations with C5 epoxy coating reduce core loss by 40%, deliver ≄97% stacking factor, and withstand 200°C — engineered specifically for brushless outrunner and inrunner motors. Custom tooling, free samples for OEMs, and bulk production capacity.

🔍 What Are Brushless Stator Laminations? Core of BLDC Motor Efficiency

Brushless stator laminations are thin silicon steel sheets stacked, insulated, and bonded to form the stationary magnetic circuit in brushless DC motors. For drone propulsion and industrial BLDC applications, the lamination stack directly determines iron loss, heat dissipation, and torque ripple. Reenives produces non-oriented electrical steel laminations with thicknesses down to 0.20mm, specifically optimized for high-frequency PWM (20-50kHz) used in brushless motor controllers.

Brushless stator laminations stack for BLDC motor core
📾 Fig 1: Precision brushless stator lamination stack with C5 epoxy coating (BLDC motor core – Reenives production)

As Reenives: Leading Brushless Motor Stator Core Laminations Manufacturer in China, we combine progressive die stamping, interlocking + laser welding, and advanced C5 insulation to achieve a stacking factor ≄97% — directly boosting power-to-weight ratio for drone outrunners, e-scooters, and industrial servos.

📂 Classification of Brushless Stator Laminations for BLDC Motors

Selecting the right lamination category ensures optimal magnetic performance and thermal management for your brushless motor design:

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

Reenives maintains in-house tooling for 18mm – 220mm outer diameter, covering all popular brushless stator sizes: 2207, 2306, 2806.5, 3115, 4215, and custom designs.

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

All specifications are derived from Reenives internal R&D testing and third-party accredited labs (IEC 60404-2, JIS C2552). Optimized for brushless motors operating up to 60,000 RPM.

Parameter Value / Range Test Condition / Source
Material thickness 0.20mm / 0.27mm / 0.35mm (NGO silicon steel) Reenives incoming inspection (M-400-50A grade)
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 – Epstein frame, 25°C
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 – 220mm (custom tooling available) CNC progressive die capability
Stack height tolerance ±0.05mm (standard), ±0.02mm (precision) Optical CMM / Mitutoyo gauge
Max operating temperature 180°C continuous, 200°C peak (C5 epoxy) Thermal aging (UL 1446) + Reenives oven test

📌 Source: Reenives Technical Datasheet v7.0 (2025) & SGS verification report. Thinner gauges (0.10mm) available for ultra-high-speed brushless motors.

🚁 Applications: Drone UAV FPV Propulsion & Industrial BLDC Motors

Our brushless stator laminations are engineered for demanding high-frequency, high-torque applications:

  • Racing & freestyle FPV drones – 6S/8S outrunners, instant throttle response, minimal eddy loss.
  • Heavy-lift agricultural UAVs – high torque density, C5 coating for corrosion resistance.
  • eVTOL propulsion systems – redundant motor arrays requiring extreme reliability.
  • Industrial BLDC motors – e-scooters, electric skateboards, robotics, CNC spindles, power tools.
Brushless stator laminations in drone UAV propulsion motor
📾 Fig 2: Brushless stator lamination stack assembled in high-thrust UAV outrunner motor (Reenives custom design)

Whether you need 0.20mm ultra-thin laminations for high-kV racing outrunners or epoxy-coated stacks for saltwater drone operations, Reenives delivers consistent magnetic performance batch after batch.

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

Follow this systematic approach to match lamination stacks with your brushless motor design:

  1. Define operating frequency & target RPM: For >20kHz PWM (FPV ESCs), choose 0.20mm laminations to reduce eddy loss by 35-40%.
  2. Determine stator dimensions (OD, ID, stack height): Use Reenives existing tooling library (2207 to 4215 outrunner/inrunner sizes) or request custom die.
  3. Select insulation class: C5 epoxy for harsh environments (agriculture, marine); C3 varnish for indoor/racing applications.
  4. Choose stacking & bonding method: Interlocking for high-volume production; laser welding for high-shock UAV applications.
  5. Validate with engineering samples: Reenives provides free samples with core loss curves, stacking factor report, and dimensional inspection certificate.

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

❓ FAQ: Brushless Stator Laminations – Critical Technical Pain Points

1. How does lamination thickness affect high-frequency iron loss in brushless motors?
Eddy current loss increases with the square of thickness. Switching from 0.35mm to 0.20mm reduces core loss by ~40% at 20-40kHz. Reenives 0.20mm laminations achieve ≀8.5 W/kg @ 1.0T/400Hz, directly extending drone flight time by 12-18% and improving BLDC efficiency. Source: Reenives loss comparison – IEC 60404-2 data.
2. What stacking factor can I expect from Reenives interlocking brushless stator laminations?
Our mechanical interlocking guarantees ≄97.0% stacking factor for 0.20mm and 0.35mm stacks. Higher stacking factor means higher magnetic flux density, improving torque density of brushless motors. Source: Reenives QA batch reports (average 97.3% – 2025).
3. What is the maximum temperature rating for C5 epoxy-coated stator laminations?
C5 epoxy coating withstands 180°C continuous, 200°C peak (tested per UL 1446). This suits high-power brushless drone outrunners and industrial BLDC motors 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) in brushless outrunners?
We combine interlocking with 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 brushless stator lamination geometries for non-standard 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 department.
6. Do you offer free samples for brushless stator laminations?
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 – Leading Brushless Motor Stator Core Laminations Manufacturer in China

With 4+ years of dedicated stator lamination manufacturing, Reenives has solved motor efficiency and reliability challenges for over 1000 enterprises worldwide. As the recognized Leading Brushless Motor Stator Core Laminations Manufacturer in China, 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 is a professional industrial tape 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!

✅ Certifications: ISO 9001:2025, RoHS, REACH, IATF 16949 (in process). Our brushless stator laminations power leading motor brands across North America, Europe, and Asia.

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

Reenives: Top1 Drone UAV FPV Propulsion System Motor Stator Core Supplier in Ukraine

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

Related Article

image
Reenives engineers stators for robot actuators and drone motors with precision and reliability. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we produce stators with low core loss, high slot fill, and tight tolerances. As a robot actuator drone motor stators core supplier, we help 1000+ enterprises improve motor performance.
Robot Actuator Drone Motor Stators Core Supplier
2026-09-13
image
Reenives engineers matched stator and rotor pairs designed specifically for drone brushless motors. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we produce both stator and rotor cores with low core loss, tight tolerances, and consistent air gaps. As a drone motor stator and rotor supplier, we help 1000+ enterprises improve motor performance.
Drone Motor Stator and Rotor Supplier
2026-09-13
image
Reenives produces electric generator stators and BLDC stator laminations engineered for efficiency. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we deliver stator cores with low core loss, tight tolerances, and clean edges. As a BLDC electric generator stator laminations supplier, we help 1000+ enterprises improve motor and generator performance.
BLDC Electric Generator Stator Laminations Supplier
2026-09-12
image
Reenives engineers matched stators and rotors designed for drone brushless motors. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we produce both stator and rotor cores with low core loss, tight tolerances, and consistent air gaps. As a global leading drone stators and rotors supplier, we help 1000+ enterprises improve motor performance.
Global Leading Drone Stators and Rotors Supplier
2026-09-12