Drone&Robot Motor Stampings Stator Lamination Supplier
Motor Stampings – Precision Stator Laminations for Drone & Robot Motors
Motor stampings with inconsistent quality? Burrs damaging your windings? Need a supplier that understands drone and robot motor demands? Motor stampings are the precision-stamped silicon steel laminations that form the stator and rotor cores of electric motors—the essential magnetic circuits that enable electromagnetic energy conversion. As a specialist drone and robot motor stampings stator lamination supplier, Reenives delivers precision laminations with 0.2mm ultra-thin silicon steel, burr height < 0.03mm, and epoxy coating—reducing core loss by up to 30%, extending drone flight times, and maximizing robot motor efficiency for demanding UAV, robotics, and industrial BLDC applications.
- • What Are Motor Stampings?
- • Classification of Motor Stampings
- • Technical Specifications & Verified Data
- • Applications: Drone Motors, Robot Actuators, Industrial & More
- • 6-Step Engineering Selection Guide for Motor Stampings
- • FAQ: Motor Stampings Technical Questions
- • Why Reenives – Drone & Robot Motor Stampings Stator Lamination Supplier
- • Dongguan Runlu Motor Technology Co., Ltd.
What Are Motor Stampings?
Motor stampings are precision-stamped laminations made from thin electrical steel sheets 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—whether converting electricity to motion (motors) or motion to electricity (generators).
Why motor stampings are essential:
- Eddy current reduction – Thin laminations (0.10–0.35mm) 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
ⓘ Motor stampings insight: "Motor stampings are the foundation of electric motor performance—from drone propulsion to robot actuators. Precision stamping is the key to maximizing efficiency and reliability."
Reenives manufactures precision motor stampings for drone and robot stators using imported 0.2mm silicon steel, progressive stamping dies, and automated epoxy powder coating—delivering optimal magnetic performance for demanding UAV, robotics, and industrial BLDC applications.
Classification of Motor Stampings
Reenives supplies motor stampings across four primary series, tailored to different motor classes and performance requirements:
| Series | Material / Thickness | Slot/Pole Configurations | Core Loss @ 400Hz | Best For |
|---|---|---|---|---|
| Series A – High-Performance Drone | 35PN210 / 0.20mm | 9N12P, 12N14P | ≤ 8.5 W/kg | FPV racing, high-end UAV |
| Series B – Robot Servo / Actuator | 35PN250 / 0.20mm | 12N8P, 24N16P | ≤ 9.5 W/kg | Robot joints, precision actuators |
| Series C – Standard Industrial BLDC | 50A470 / 0.35mm | 12N8P, 24N16P | ≤ 12.0 W/kg | Pumps, actuators, industrial motors |
| Series D – Custom OEM | Any grade / 0.15–0.50mm | Any slot/pole combination | Custom | Specialized designs, low-volume |
Motor stampings are available in a range of thicknesses to suit different operating frequencies:
- 0.15mm: Ultimate high-frequency performance, racing drones
- 0.20mm: Optimal balance—most drone and robot motor applications
- 0.35mm: Standard industrial motors, cost-effective
- 0.50mm: Low-frequency, cost-sensitive 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 stampings.
| Parameter | Value / Range (Reenives Standard) | Test Standard / Source |
|---|---|---|
| Material Type | Silicon steel (CRNGO / Non-oriented) | Material certificates / IEC 60404 |
| Common Grades | 35PN210, 35PN250, 50A470, 50A600 (Nippon Steel / Baowu) | Material certificates |
| Lamination Thickness | 0.15mm / 0.20mm / 0.35mm / 0.50mm (customizable) | 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 |
| Stamping Tolerance | ±0.02mm – ±0.05mm | CMM / optical comparator |
| Slot/Pole Configurations | 9N12P, 12N14P, 24N22P, custom | Reenives design standards |
| Typical Motor Efficiency | 90–96% (with optimized stampings) | IEEE Xplore / FEM simulation |
🔬 Data Source: Reenives R&D Report 2024-Q4 + IEC 60404-2 standard + Material certificates + IEEE Xplore motor studies.
Applications: Drone Motors, Robot Actuators, Industrial & More
Motor stampings from specialist manufacturers power a wide range of applications:
| Application | Typical Motor Size | Stamping Requirements | Performance Priorities |
|---|---|---|---|
| FPV Racing Drones | 22–30mm stators | 0.15–0.20mm, high grade, low loss | High RPM, rapid acceleration, efficiency |
| Logistics & Delivery Drones | 30–50mm stators | 0.20mm, good efficiency | Long flight time, payload capacity |
| Collaborative Robot Actuators | 20–60mm stators | 0.20mm, precision stamping, low cogging | Smooth torque, precision control, reliability |
| Robot Servo Motors | Various | 0.20–0.35mm, tight tolerances | Positioning accuracy, low ripple, durability |
| Agriculture UAVs | 40–60mm stators | 0.20mm, corrosion-resistant coating | Heavy payload, durability, dust resistance |
| Industrial BLDC Motors | Various | 0.35mm, cost-effective | Reliability, thermal stability, cost |
"Specialist motor stampings for drone and robot applications deliver the precision and quality that standard stamping cannot achieve—enabling next-generation performance."
6-Step Engineering Selection Guide for Motor Stampings
For procurement engineers and motor designers, selecting the optimal motor stampings solution requires systematic evaluation. Here is a practical 6-step framework:
- Define Motor Class & Application – Identify your motor type:
- Drone motors: High RPM, lightweight, efficiency-focused
- Robot motors: Precision torque, smooth control, low cogging
- Industrial BLDC: Reliability, thermal stability, cost-effective
- Select Material Grade & Thickness – Match to operating frequency:
- 0.15–0.20mm: High-frequency drone and robot motors
- 0.27mm: Mid-frequency applications, cost-performance balance
- 0.35mm: Standard industrial motors
- Premium grades: 35PN210, 35PN250 for drone/robot applications
ⓘ "0.20mm stampings reduce core loss by approximately 30% compared to 0.35mm at 400Hz—critical for drone flight times and robot efficiency."
- Define Slot/Pole Configuration – Match to motor characteristics:
- 9N12P: Most common for FPV and racing drones
- 12N14P: Higher torque density for larger drones
- 12N8P, 24N16P: Robot servo and industrial motors
- 24N22P: Heavy-lift and industrial applications
- Verify Stamping Precision & Quality – Non-negotiable for performance:
- Burr height < 0.03mm – protects winding insulation
- Concentricity ±0.01mm – ensures uniform air gaps
- Stacking factor ≥ 97.5% – maximizes magnetic material density
- Epoxy coating for insulation and corrosion protection
- Evaluate Manufacturing Capability – Beyond quality:
- Progressive stamping die capability for high-volume production
- Private mould development for unique designs
- Automated coating lines for consistent quality
- Dust-free workshops and full export documentation
- Choose a Specialist Supplier – Look for:
- Experience with drone and robot motor stampings
- Understanding of high-frequency motor requirements
- Proven track record with UAV and robotics manufacturers
- Engineering support for motor optimization
- Commitment to quality and innovation
FAQ: Motor Stampings Technical Questions
Motor stampings are precision-stamped laminations made from thin electrical steel sheets that form the stator and rotor cores of motors. They are critical because: (1) they minimize eddy current losses using thin insulated layers instead of a solid core, (2) precision stamping ensures consistent geometry for optimal magnetic flux, (3) burr-free edges protect winding insulation, and (4) high stacking factor maximizes magnetic material density. For drone and robot motors, these factors directly impact flight time, torque precision, and overall efficiency.
For drone and robot 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 0.35mm material—delivering longer flight times, cooler operation, and higher efficiency. For FPV racing drones, 0.15mm provides ultimate high-RPM performance. 0.35mm is suitable for cost-sensitive industrial BLDC motors with lower operating frequencies.
Burr height must be maintained below 0.03mm in motor stampings 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 and robotics applications where motor failure is unacceptable. Specialist suppliers like Reenives maintain burr height < 0.03mm through precision progressive stamping dies.
Motor stampings use progressive stamping dies to punch laminations from electrical steel coils—ideal for high-volume production with low per-unit cost. Laser-cut laminations use fiber lasers to cut laminations—ideal for prototyping, complex geometries, and low-volume production without tooling investment. Stamping offers: (1) lower per-unit cost at high volumes, (2) faster production speeds, (3) consistent quality across millions of parts, and (4) material efficiency. Both methods produce burr-free edges when properly controlled.
Epoxy powder coating provides three critical functions for motor stampings: (1) electrical insulation between laminations to minimize eddy currents and prevent interlaminar shorts, (2) corrosion resistance for operation in humid, outdoor, or agriculture environments, and (3) thermal durability up to 180°C (Class H) to withstand heat generated during motor operation. The coating thickness (30–60µm) is optimized for tight slot geometries with dielectric strength exceeding 2.5 kV.
Reenives supports a wide range of slot/pole configurations for motor stampings including: 9N12P (most common for FPV and racing drones), 12N14P (higher torque density for 5-inch+ drones), 12N8P (robot servo motors), 24N16P (industrial actuators), 24N22P (heavy-lift drones), 36N30P (eVTOL), and custom configurations for specialized applications. Private mould development is available for high-volume OEM projects with exclusive design rights.
When selecting a motor stampings supplier for drone and robot motors, evaluate: (1) experience with high-frequency motor applications, (2) material grade capability (35PN210, 35PN250, etc.), (3) stamping precision—burr height, concentricity, and tolerances, (4) coating capability—epoxy insulation, (5) customization—ability to develop private moulds, (6) quality control—IEC testing and third-party verification, (7) production capacity—volume capability and on-time delivery, (8) technical support—engineering expertise, and (9) track record with UAV and robotics manufacturers.
Why Reenives – Drone & Robot Motor Stampings Stator Lamination Supplier
Reenives has earned its reputation as a specialist Drone and Robot Motor Stampings Stator Lamination Supplier by combining advanced stamping technology with deep expertise in high-performance motor applications.
Our Advantages — Motor Stampings Specialists
- ✅ Multi-Thickness Capability: 0.15mm, 0.20mm, 0.27mm, 0.35mm, 0.50mm—optimize cost and performance
- ✅ Premium Material Grades: 35PN210, 35PN250, 50A470, 50A600—verified material certificates
- ✅ Precision Progressive Stamping: Burr height < 0.03mm, tight tolerances (±0.02mm)
- ✅ Drone & Robot Optimized Configurations: 9N12P, 12N14P, 12N8P, 24N16P, 24N22P, and custom designs
- ✅ Epoxy Coating: 30–60µm, Class H 180°C, dielectric > 2.5 kV
- ✅ Full Customization: Private mould development for exclusive designs
- ✅ Trusted Quality Control: IEC 60404-2 testing, material certificates, third-party verification
- ✅ Global Export: Complete export qualifications with worldwide shipping to 40+ countries
- ✅ Proven Track Record: 4 years experience, 1,000+ enterprise clients, 100+ R&D patents
- ✅ 3 Production Bases: 50,000+ m² factory area, 500+ staff, scalable capacity
⚙️ Our stampings promise: Precision motor stampings that maximize efficiency for drones and robots. Consistent quality that eliminates rework. Engineering support that optimizes your design. Global supply chain that delivers on time. That's why Reenives is the trusted motor stampings supplier for drone and robot applications.
⚡ Ready to source precision motor stampings for your drone or robot motors?
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 stampings supplier for the worldwide UAV, robotics, EV, 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 stampings challenges for 1,000+ enterprises worldwide—including leading drone and robotics manufacturers.
From production to sales, we support bulk purchasing, private mould development, and sample making. We provide tailor-made solutions for your specific 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 and robotics manufacturers welcome — consult, visit the factory, or request free samples today!
Reenives — Drone & Robot Motor Stampings Stator Lamination Supplier
© 2026 Dongguan Runlu Motor Technology Co., Ltd. All rights reserved.
UAV FPV Drone Motor Stator Rotor Stamping Die Supplier
Drone Motor Custom Stator Core Supplier
Related Article
