Reenives: Drone Motor Lamination Stamping Company
Motor Lamination Stamping – Precision Cores for Drone & UAV Propulsion
Drone motor efficiency lagging? Lamination stamping quality inconsistent? Flight times too short? Motor lamination stamping is the precision manufacturing process that forms the stator and rotor laminations of every electric motor—the essential magnetic circuits that determine efficiency, torque, and flight performance. As a specialist drone motor lamination stamping company, Reenives delivers precision lamination stampings with 0.2mm ultra-thin silicon steel, 12N14P or 24N22P configurations, burr height < 0.03mm, and epoxy coating—reducing core loss by up to 30%, extending flight times by 8–12%, and maximizing thrust-to-weight ratio for FPV racing, UAV logistics, agriculture, and eVTOL applications.
- • What Is Motor Lamination Stamping?
- • Classification of Motor Lamination Stampings
- • Technical Specifications & Verified Data
- • Applications: FPV Racing, UAV Logistics, eVTOL & More
- • 6-Step Engineering Selection Guide for Motor Lamination Stampings
- • FAQ: Motor Lamination Stamping Technical Questions
- • Why Reenives – Drone Motor Lamination Stamping Company
- • Dongguan Runlu Motor Technology Co., Ltd.
What Is Motor Lamination Stamping?
Motor lamination stamping is the precision manufacturing process of punching thin electrical steel sheets into the laminations that form the stator and rotor cores of electric motors, generators, and alternators. These stamped laminations are the essential magnetic circuits that enable electromagnetic energy conversion—converting electrical power into mechanical thrust for drone propulsion.
Why motor lamination stamping is essential for drone performance:
- Eddy current reduction – Thin laminations (0.15–0.20mm) restrict eddy current flow, minimizing core loss
- Precision geometry – Stamping ensures consistent slot/pole shapes for optimal magnetic flux
- Burr-free edges – Quality stamping (burr < 0.03mm) protects winding insulation
- High stacking factor – Precision stamping enables ≥ 97.5% stacking density
- Material optimization – Silicon steel increases electrical resistance and magnetic permeability
ⓘ Lamination stamping insight: "Motor lamination stamping is the most critical manufacturing step for drone motors. A 10% reduction in core loss through precision stamping can increase motor efficiency by 5–8%."
Reenives manufactures precision motor lamination stampings using imported 0.2mm silicon steel, progressive stamping dies, and automated epoxy powder coating—delivering optimal magnetic performance for demanding drone, UAV, and eVTOL applications.
Classification of Motor Lamination Stampings
Reenives supplies motor lamination stampings across four primary series, tailored to different drone classes and performance requirements:
| Series | Stator OD (mm) | Slot/Pole Configuration | Lamination Thickness | Best For |
|---|---|---|---|---|
| Series A – Micro FPV | 12–20mm | 9N12P | 0.15–0.20mm | Micro drones, tiny whoops, sub-100g FPV |
| Series B – FPV Racing | 22–30mm | 9N12P, 12N14P | 0.15–0.20mm | 3–5 inch FPV racing drones, freestyle |
| Series C – Mid-Size UAV | 30–50mm | 12N14P, 24N22P | 0.20mm | Logistics drones, camera platforms, agriculture |
| Series D – Heavy-Lift & eVTOL | 50–80mm | 24N22P, 36N30P | 0.20mm | Heavy-lift UAVs, eVTOL, cargo drones |
Motor lamination stampings are optimized for specific drone applications:
- 9N12P: High RPM, low cogging—excellent for FPV racing
- 12N14P: Near-perfect winding factor (0.933), smooth torque—most popular for UAVs
- 24N22P: High torque, low cogging—ideal for logistics and agriculture UAVs
- 36N30P: Maximum torque density for eVTOL and heavy-lift applications
Technical Specifications & Verified Data
All performance data below is derived from Reenives in-house laboratory testing (IEC 60404-2), third-party validation, and industry standards for motor lamination stampings.
| Parameter | Value / Range (Reenives Standard) | Test Standard / Source |
|---|---|---|
| Stator Outer Diameter | 12–80mm (customizable) | CMM / optical comparator |
| Material Type | Silicon steel (CRNGO / Non-oriented) | Material certificates / IEC 60404 |
| Common Grades | 35PN210, 35PN250 (Nippon Steel / Baowu) | Material certificates |
| Lamination Thickness | 0.15mm / 0.20mm / 0.27mm / 0.35mm | Micrometer / IEC 60404-2 |
| Core Loss @ 1.0T, 400Hz (0.20mm) | ≤ 8.5 W/kg — 30% lower than 0.35mm | IEC 60404-2 / Reenives R&D |
| Saturation Flux Density Bs | 1.68 – 1.72 T | Epstein frame test |
| Burr Height (max) | < 0.03mm | Optical measurement |
| Epoxy Coating Thickness | 30–60 µm, dielectric > 2.5 kV | ASTM D149 |
| Stacking Factor | ≥ 97.5% | Weight method |
| Concentricity Tolerance | ±0.01mm – ±0.015mm | CMM measurement |
| Slot/Pole Configurations | 9N12P, 12N14P, 24N22P, 36N30P, custom | Reenives design standards |
| Typical Drone Motor Efficiency | 90–95% (with optimized stampings) | IEEE Xplore / FEM simulation |
| Flight Time Improvement | 8–12% (vs. standard 0.35mm stampings) | Reenives R&D / field testing |
🔬 Data Source: Reenives R&D Report 2024-Q4 + IEC 60404-2 standard + Material certificates + IEEE Xplore motor studies.
Applications: FPV Racing, UAV Logistics, eVTOL & More
Motor lamination stampings power the full spectrum of drone applications:
| Application | Typical Stator Size | Stamping Requirements | Performance Priorities |
|---|---|---|---|
| FPV Racing Drones | 22–30mm | Ultra-thin 0.15mm, high fill factor, low cogging | High RPM, rapid acceleration, responsiveness |
| Freestyle / Cinematic FPV | 22–30mm | 0.20mm, smooth torque, thermal stability | Smooth control, consistent power, cooling |
| UAV Logistics & Delivery | 30–50mm | 0.20mm, high efficiency, durability | Long flight time, payload capacity, reliability |
| UAV Agriculture Spraying | 40–60mm | 0.20mm, corrosion-resistant coating | Heavy payload, dust/chemical resistance, power |
| eVTOL / Air Taxi | 50–80mm | 0.20mm, high power density, reliability | Safety, redundancy, high continuous power |
| Micro / Tiny Whoop FPV | 12–20mm | 0.15mm, ultra-lightweight | Weight reduction, efficiency at low power |
"Precision motor lamination stamping is the backbone of drone motor performance—from FPV racing to heavy-lift UAVs."
6-Step Engineering Selection Guide for Motor Lamination Stampings
For drone motor designers and procurement engineers, selecting the optimal motor lamination stampings requires systematic evaluation. Here is a practical 6-step framework:
- Define Drone Class & Performance Requirements – Identify your drone's mission profile:
- FPV racing: High RPM, rapid acceleration, lightweight
- FPV freestyle: Smooth control, consistent power, cooling
- UAV logistics: Long flight time, high payload, efficiency
- UAV agriculture: Heavy lift, dust/chemical resistance, durability
- eVTOL: Safety, redundancy, high continuous power
- Select Stator Outer Diameter – Match motor size to drone class:
- 12–20mm: Micro drones, tiny whoops
- 22–30mm: FPV racing, freestyle (most popular)
- 30–50mm: Logistics, agriculture, camera platforms
- 50–80mm: Heavy-lift, eVTOL, cargo drones
- Choose Lamination Thickness – Thinner laminations reduce core loss at high frequencies:
- 0.15mm: Ultimate high-RPM performance, FPV racing drones
- 0.20mm: Optimal balance—most drone applications
- 0.35mm: Not recommended for high-performance drone motors
ⓘ "0.20mm stampings reduce core loss by approximately 30% compared to 0.35mm—translating to 8–12% longer flight times for drone applications."
- Define Slot/Pole Configuration – Match to motor characteristics:
- 9N12P: High RPM, low cogging—FPV racing
- 12N14P: Near-perfect winding factor (0.933)—most popular for UAVs
- 24N22P: High torque, low cogging—logistics and agriculture UAVs
- 36N30P: Maximum torque density—eVTOL
- Specify Insulation & Coating – Critical for drone motor reliability:
- Epoxy powder coating (30–60µm, Class H 180°C)
- Corrosion resistance for agriculture and outdoor operations
- Dielectric strength > 2.5 kV for reliable insulation
- Choose a Specialist Stamping Company – Evaluate stamping expertise:
- Experience with motor lamination stamping for drone applications
- Ultra-thin lamination capability (0.15–0.20mm)
- Precision stamping: burr < 0.03mm, concentricity ±0.01mm
- Epoxy coating capability for drone motor environments
- Material certificates and third-party test reports
- Proven track record with drone motor manufacturers
- Engineering support for drone motor optimization
FAQ: Motor Lamination Stamping Technical Questions
Motor lamination stamping is the precision manufacturing process of punching thin electrical steel sheets into the laminations that form the stator and rotor cores of motors. It is critical for drone motor performance because: (1) precision stamping minimizes eddy current losses through thin laminations, (2) consistent geometry ensures optimal magnetic flux distribution, (3) burr-free edges protect winding insulation, and (4) high stacking factor maximizes magnetic material density—all of which directly impact motor efficiency, thrust, and flight time.
For drone motors operating at high frequencies (up to 40 kHz PWM), 0.15–0.20mm laminations are optimal. 0.20mm achieves core loss ≤ 8.5 W/kg at 400Hz—approximately 30% lower than conventional 0.35mm material—delivering longer flight times and cooler operation. For FPV racing drones operating at extreme RPM, 0.15mm laminations provide ultimate performance. 0.35mm is suitable for cost-sensitive industrial motors with lower operating frequencies.
12N14P (12-slot stator, 14-pole rotor) is the most common configuration for drone motor stampings, offering a near-perfect winding factor of 0.933 and exceptionally low cogging torque. It is widely used across FPV racing, logistics, agriculture, and eVTOL applications. 9N12P is also popular for FPV racing, while 24N22P is preferred for heavy-lift and logistics UAVs.
Motor stampings directly impact drone flight time through core loss. Lower core loss means less energy wasted as heat and more power available for thrust. Using 0.20mm silicon steel instead of 0.35mm reduces core loss by approximately 30%, which translates to 8–12% longer flight times for the same battery capacity. For a 20-minute flight, this could mean 2–2.5 minutes of additional flight time—a significant advantage for logistics and surveying applications.
Burr height is the raised edge left on stamped metal after the punching process. In drone motor stampings, burr height must be maintained below 0.03mm because excessive burrs can: (1) damage enamel insulation on copper windings during assembly, causing short circuits, (2) create localized magnetic saturation points that reduce efficiency, (3) increase core loss through eddy current concentration, and (4) reduce motor reliability—critical for UAV applications where motor failure means crashing. Reenives maintains burr height < 0.03mm through precision progressive stamping dies.
Epoxy powder coating provides three critical functions for drone motor lamination stampings: (1) electrical insulation between laminations to minimize eddy currents and prevent interlaminar shorts, (2) corrosion resistance for operation in humid environments, outdoor conditions, and agriculture applications where chemicals may be present, and (3) thermal durability up to 180°C (Class H) to withstand the heat generated during high-power drone operation. The coating thickness (30–60µm) is optimized for tight slot geometries common in drone motors.
Yes. Reenives supports full customization of drone motor lamination stampings including: stator outer diameter (12–80mm), lamination thickness (0.15–0.20mm), slot/pole configurations (9N12P, 12N14P, 24N22P, 36N30P, custom), stacking height, material grade, and epoxy coating specifications. Private mould development is available for high-volume OEM projects with exclusive design rights—from micro FPV motors to heavy-lift eVTOL propulsion systems.
Why Reenives – Drone Motor Lamination Stamping Company
Reenives has earned its reputation as a specialist drone motor lamination stamping company by combining advanced stamping technology with deep expertise in electrical steel, motor applications, and UAV propulsion systems.
Our Advantages — Motor Lamination Stamping Specialists
- ✅ Ultra-Thin Silicon Steel: 0.15–0.20mm laminations reduce core loss by up to 30%—extending drone flight times by 8–12%
- ✅ Precision Progressive Stamping: Burr height < 0.03mm, concentricity ±0.01mm, stacking factor ≥ 97.5%
- ✅ Drone-Optimized Configurations: 9N12P, 12N14P, 24N22P, 36N30P, and custom designs for any drone application
- ✅ Full Customization: Private mould development, tailored stator diameters, and custom stack heights
- ✅ Epoxy Coating: 30–60µm, Class H 180°C, dielectric > 2.5 kV
- ✅ Trusted Quality Control: IEC 60404-2 testing, third-party verification, and material certificates
- ✅ Drone Motor Expertise: 4 years of experience with 1,000+ enterprise clients—specializing in UAV propulsion
- ✅ Global Export Capability: Complete export qualifications with worldwide shipping to drone manufacturers
- ✅ 100+ R&D Patents: Continuous innovation in motor lamination stamping technology
🔧 Our stamping company promise: Precision motor lamination stampings that deliver longer flight times, higher thrust, and cooler operation. Consistent quality that eliminates rework. Engineering support that understands drone propulsion. That's why Reenives is the trusted drone motor lamination stamping company.
🚁 Ready to power your drone motors with precision motor lamination stampings?
Contact Reenives today for engineering consultation, OEM samples, and competitive global pricing.
📱 WhatsApp: +86-13377741885
Dongguan Runlu Motor Technology Co., Ltd.
Reenives — Professional Drone Stator Core Manufacturer
Founded in 2022, Reenives has rapidly grown into a trusted motor lamination stamping company for the worldwide drone, UAV, FPV, and industrial motor markets.
Independent R&D Technology · Imported stamping & epoxy powder coating production lines · Dust-free workshops · 4 years of manufacturing experience · Solved motor lamination stamping challenges for 1,000+ enterprises worldwide—including leading drone motor manufacturers.
From production to sales, we support bulk purchasing, private mould development, and sample making. We provide tailor-made solutions for your specific drone motor production scenarios—with competitive global pricing, consistent quality, and reliable on-time delivery.
🌐 www.reenives-bldcmotor.com | 📧 linda_reenives@163.com | 📱 +86-13377741885
✈️ Global drone manufacturers welcome — consult, visit the factory, or request free samples today!
Reenives — Drone Motor Lamination Stamping Company
© 2026 Dongguan Runlu Motor Technology Co., Ltd. All rights reserved.
Leading BLDC Motor Core Company in China
Outrunner Motor Stator Electrical Steel Laminations Supplier in India
Related Article
