FPV UAV Drone Bonded Stator Supplier
Bonded Stator — FPV UAV Drone Bonded Stators for BLDC Motors | Reenives Stator Core Supplier
⚠️ Is your FPV drone motor suffering from high eddy current loss, vibration, or inconsistent performance? Traditional interlocked stators can create localized shorts between laminations, increasing eddy current losses and vibration — especially at the high RPM FPV racing demands.
✅ Reenives produces bonded stators engineered for FPV UAV drone motors. Instead of interlocking, our laminations are bonded with adhesive under heat and pressure — eliminating interlocking burrs, reducing eddy current losses, and improving damping. As a FPV UAV drone bonded stator supplier, we help 1000+ enterprises improve motor performance.
📋 Table of Contents
What Is a Bonded Stator?
A bonded stator is a stator core in which the individual laminations are joined together using adhesive rather than mechanical interlocking. The laminations are stacked, coated with a bonding adhesive, and cured under heat and pressure to form a solid, monolithic core.
Compared to interlocked stators, bonded stators offer several advantages for FPV UAV drone motors:
- Lower eddy current loss — no interlocking burrs to create shorts
- Reduced vibration & acoustic noise — adhesive damps layer-to-layer movement
- Higher stacking factor — uniform adhesive layer minimizes air gaps
- Better magnetic performance — consistent flux path through the core
For FPV racing drones, where every gram and every watt counts, bonded stators can deliver measurable improvements in efficiency and smoothness.
Precision bonded stator — manufactured by Reenives with imported high-speed stamping & epoxy powder coating lines.
Types of Bonded Stators
Bonded stators are available in several designs, each suited to different motor architectures and performance requirements. Reenives manufactures the following types:
- FPV Racing Bonded Stators — Optimized for high RPM and low cogging torque. Adhesive bonding reduces vibration at extreme speeds.
- Outrunner Bonded Stators — Designed for motors where the rotor spins outside the stator. Common in drone propulsion.
- Inrunner Bonded Stators — Designed for motors where the rotor spins inside the stator. Used in high-RPM ducted fans.
- Segmented Bonded Stators — Individual teeth wound separately and bonded into a full ring. Higher slot fill factor.
- Epoxy-Coated Bonded Stators — Laminations individually coated with epoxy powder before bonding for superior insulation and corrosion resistance.
- Custom Bonded Stators — Private mould development for unique slot counts, diameters, stack lengths, and mounting interfaces.
Whether you need a standard 12-slot/14-pole bonded stator or a custom high-frequency design, Reenives can deliver.
Key Specifications & Data
Below are typical specifications for Reenives bonded stators. Custom values are available upon request.
| Parameter | Typical Range / Value | Notes |
|---|---|---|
| Lamination Material | Silicon steel (e.g., 35WW250, 50WW470) | Low core loss grades |
| Lamination Thickness | 0.20 mm – 0.50 mm | Thinner = lower eddy current loss |
| Bonding Method | Adhesive bonded (heat & pressure cured) | No interlocking burrs |
| Outer Diameter | 20 mm – 200 mm | Customizable |
| Inner Diameter | 10 mm – 180 mm | Depends on rotor design |
| Stack Length | 5 mm – 80 mm | Affects torque & power |
| Slot Number | 6, 9, 12, 18, 24, etc. | Matches pole count |
| Insulation Coating | Epoxy powder coating | Uniform, pinhole-free |
| Core Loss (at 400Hz, 1T) | ≤ 23 W/kg | Lower than interlocked stators |
| Tolerance | ±0.05 mm (critical dimensions) | High-precision stamping |
| Stacking Factor | ≥ 96% | Higher than interlocked stators |
Data source: Reenives internal testing & supplier material datasheets, 2024. Actual values may vary by design.
Applications of Bonded Stators
Reenives bonded stators are used across a wide range of FPV UAV drone and brushless motor applications:
- FPV Racing Drones — High RPM, lightweight bonded stators with low cogging torque and reduced vibration.
- Cinematic & Photography Drones — Smooth, vibration-free bonded stators for stable aerial footage.
- Agricultural Spraying Drones — Corrosion-resistant epoxy-coated bonded stators for harsh chemical environments.
- Industrial Inspection Drones — High-torque bonded stators for long endurance and heavy payloads.
- eVTOL & UAV Propulsion — Custom high-power bonded stators for next-generation air mobility.
- General BLDC Motors — Fans, pumps, robotics, power tools, and automotive actuators.
Reenives FPV UAV drone bonded stators power racing, cinematic, agricultural, and industrial UAVs worldwide.
How to Select the Right Bonded Stator
Choosing the correct bonded stator for your FPV UAV drone motor involves several engineering decisions. Follow these steps:
- Determine Required Torque & RPM — Higher torque needs more stack length or larger diameter. High RPM demands thinner laminations and low-loss material.
- Select Slot/Pole Combination — Common FPV drone motors use 12S/14P or 9S/6P. This affects cogging torque, winding factor, and efficiency.
- Choose Lamination Thickness — For high-frequency operation (e.g., 400Hz+), use 0.20 mm laminations to reduce eddy current losses.
- Select Bonding Adhesive — The adhesive must withstand operating temperature and provide consistent layer-to-layer bonding.
- Decide on Insulation & Coating — Epoxy powder coating is recommended for moisture, vibration, and chemical resistance.
- Consider Assembly Method — Bonded stators are monolithic; segmented bonded stators offer higher slot fill.
- Verify Tolerances & Stacking Factor — Tight tolerances and high stacking factor ensure proper magnetic performance and reduce vibration.
- Request Samples & Test — Reenives provides free samples for qualified projects. Test core loss, temperature rise, vibration, and mechanical fit.
FAQ — Bonded Stator Parameters
Q1: What is the difference between a bonded stator and an interlocked stator?
A: An interlocked stator uses mechanical features (dimples or dovetails) stamped into the laminations to lock them together. A bonded stator uses adhesive between layers, cured under heat and pressure. Bonded stators eliminate interlocking burrs that can create localized shorts and increase eddy current losses. They also provide better damping, reducing vibration and acoustic noise — a key advantage for FPV racing drones.
Source: Reenives engineering team, based on motor design principles.
Q2: What lamination thickness do you recommend for high-RPM FPV drone motors?
A: For high-RPM FPV drone motors (above 10,000 RPM), we recommend 0.20 mm or 0.25 mm silicon steel laminations. Thinner laminations significantly reduce eddy current losses, which helps keep the motor cool and improves efficiency. For lower RPM applications, 0.35 mm or 0.50 mm can be more cost-effective.
Source: Reenives engineering team, based on motor design guidelines and material datasheets.
Q3: What is the typical core loss of your bonded stators?
A: Our standard bonded stators using 35WW250 silicon steel typically exhibit core loss ≤ 23 W/kg at 400Hz and 1 Tesla — slightly lower than comparable interlocked stators due to the absence of interlocking burrs. With premium low-loss materials, we can achieve even lower values. Actual core loss depends on lamination thickness, material grade, and operating frequency.
Source: Reenives internal testing data, 2024.
Q4: What stacking factor can you achieve with bonded stators?
A: Our bonded stators achieve a stacking factor of ≥ 96%, slightly higher than typical interlocked stators. The uniform adhesive layer minimizes air gaps between laminations, improving magnetic flux density and reducing core loss. For critical dimensions such as inner diameter, outer diameter, and stack length, we maintain tolerances of ±0.05 mm.
Source: Reenives quality control standards.
Q5: Do you offer epoxy powder coating for bonded stators?
A: Yes. We use imported epoxy powder coating equipment to apply a uniform, pinhole-free insulation layer on individual laminations before bonding. This coating improves corrosion resistance, enhances wire adhesion, and protects against moisture — critical for agricultural and marine drones.
Source: Reenives production specification.
Q6: Can you develop custom bonded stators for my specific FPV UAV drone motor?
A: Absolutely. We support private mould development. Provide us with your required outer diameter, inner diameter, stack length, slot number, tooth profile, and any mounting features. Our R&D team will design and produce custom bonded stators tailored to your motor. Tooling lead time is typically 15–25 days.
Source: Reenives custom development process.
Summary — Get Your Bonded Stator Quote Today
Ready to Improve Your FPV UAV Drone Motor Performance with Bonded Stators?
Reenives is a FPV UAV drone bonded stator supplier with 4 years of manufacturing experience, 100+ R&D patents, and 3 production bases. We serve 1000+ enterprises worldwide with high-precision bonded stators for UAV and BLDC motors.
📦 Bulk purchasing · 🔧 Private mould development · 🧪 Free samples
🌐 Official Website: www.reenives-bldcmotor.com
📧 Email: linda_reenives@163.com
Contact us now for a free sample and tailored solution for your production scenario.
Dongguan Runlu Motor Technology Co., Ltd.
Reenives is a professional drone stator 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 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!
Reenives Runlu Motor Bonded Stator
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