Brushless DC Motor Stator Lamination In China
Lamnow is a BLDC motor stator lamination China manufacturer that provides stamping, bonding and stacking, injection molding, electrostatic epoxy insulation coating, and winding production process. Our brushless motor stator core lamination has high performance and low iron loss.
As a professional electric motor lamination manufacturer, we also provide DC stator cores, servo motor stator cores, PMMS stator cores, axial flux stator cores, segmented stator laminations, etc.
Customized BLDC Motor Stator Cores
We can provide 0.1mm-0.5mm silicon steel(ST-100,10SW1000,15SW1200, B20AV1200,25SW1300,B35A300-A, B35AV1900-H, B50A400-A,etc), 25μm amorphous alloys, 0.1mm-0.5mm nickel alloy(1J85), and 0.1mm-0.5mm cobalt alloy(1J22) to manufacture bldc motor stator and rotor laminates. Our brushless stator lamination applies to drone motors, robotic motors, pump motors, fan motors, automotive motors, electric vehicle motors, hub motors, etc.
Design And Manufacture Stator Laminations Capabilities For BLDC Motor
Material Sourcing Expertise
Lamnow specializes in sourcing and providing expertise wide variety of materials, including 0.1mm -1mm thickness Non-Grain Oriented (NGO), Grain Oriented (GO), Cold Rolled Motor Lamination (CRML) steel, and 25 micorn Amorphous Metal Alloys.
Advanced Stamping Capabilities
Our extensive capabilities in advanced stamping services include progressive stamping, compound stamping, rotary notch stamping, and axial punching. Global reach and capacity to handle diverse production requirements, showcasing versatility in manufacturing.
Enhanced Motor Performance and Quality
We focus on providing precision lamination solutions aimed at improving motor performance and minimizing core loss, thereby enhancing overall motor efficiency. Commitment to helping clients achieve cost savings in the manufacturing process.
On-Time, In-Full Delivery
High-volume manufacturing facilities designed for quality and efficiency, ensuring the timely and complete delivery of client orders. Reliability in meeting production schedules and maintaining consistency in order fulfillment.
Offer Technical Support
Our dedicated design and engineering team is available to collaborate with clients throughout the entire product development process. Support provided from ideation to manufacturing, demonstrating a commitment to being a trusted partner in product design and development.
Other Superior Services
Lamnow offers a range of value-added services beyond basic lamination manufacturing, including annealing, bonding, welding, riveting, cleating, shaft-inserting, insulation coating, winding, die-casting, deburring, wire cutting, and laser cutting.
BLDC Stator Laminations Production Process
Brushless DC Stator Lamination Prototype
For the Bldc stator prototype samples, we employ laser cutting and wire cutting to cut electrical steel laminations. Backlack bonding, laser welding, and TIG welding for stacking stator lamination to complete cores.
Our brushless DC motor lamination prototypes boast a remarkable lead time of 7-15 work days, allowing for swift development and testing. Lamnow MOQ is 1 pcs.
Mold Design And Manufacture
We have OD: 10mm – 100mm stator public mold to manufacture Bldc motor stator lamination, which can save the die cost for our customers. Our public molds are single rows, double rows, and multiple rows.
For the customized BLDC motor stator and rotor core, we use materials including tungsten steel, SKD11, DC53, 50#, etc to manufacture molds. Our tooling life is up to 100 million strokes, and manufacturing time is around 20 days.
We employ progressive stamping, compound stamping, and helical stamping for the mass production of brushless stator stacks. The stamping stator lamination outer dimensions are 10mm – 325mm.
Progressive stamping is suitable for small motor rotor and stator lamination mass production, compound stamping is applied to medium-and-large bldc motor lamination stacks. Both methods have high precision and strict tolerances. Helical stamping reduces material waste.
Lamination Stamping For BLDC Motor Stator
BLDC Stator Lamination Stacking
We offer automatic interlocking, glue bonding, self-bonding, laser welding, TIG welding, MIG welding, riveting, and cleating methods for stacking lamination to get the best performance.
Our automated machinery equipment has accurate alignment and tight tolerances during stacking. Backlack self-bonding technology without additional adhesives which process enhances durability and simplifies assembly. No matter which stacking process customers require, our diverse selection will meet your needs.
Epoxy powder coating insulation process involves applying a thin layer of epoxy powder onto the laminations, creating a durable and insulating coating. The coated laminations are then cured through a controlled heating process, forming a solid insulation barrier.
We can coat various specific powder classes(B, F, H) for motor lamination stacks, the coating thickness could be 0.15mm – 0.6mm. The temperature resistance for the epoxy coating is 180 Degrees Celsius, and our coating colors are green and blue.
Epoxy Powder Coating BLDC Stator Core
BLDC Motor Stator Core Injection Molding Insulation
We employ plastic overmolding process to insulate the BLDC stator. the material involves PA, PPS, and PET fiberglass high-loaded.
Lamnow can design and manufacture stator injection molds to meet customer needs. The injection mold includes up and down both parts or front and black both parts. Whether you need No matter what kind of mold you need, we can meet your needs.
The BLDC motor stator winding process involves carefully winding copper wire conductors around the stator core’s teeth.
We provide manual winding and automation winding both methods. Manual winding for small production and prototype samples, automation winding for mass production that ensures winding wire accuracy.
After winding, the coils are often impregnated with insulating materials for added protection.
Brushless DC Motor Stator Coil Winding
Quality Control For Brushless DC Iron Core
- CMM inspection dimensions, shapes, and tolerances.
- Compare the 2D projected image with the CAD model to check for dimensional accuracy.
- Calipers, micrometers, and other dimensional gauging tools are employed to measure the dimensions of the iron core.
- Visual inspection of surface irregularities, scratches, dents, or other visible issues.
Silicion Steel Materials
Lamnow has diverse electrical steel materials, including silicon steel, from various brands, catering to your specific requirements for optimal performance in electrical applications.
| Sura Cogent-Sweden | JFE Steel-Japan | Steel-China | China Steel-Taiwan | |
|---|---|---|---|---|
| 0.1mm | NO10 | ST-100； 10JNEX900 | 10SW1000 | |
| 0.15mm | NO15 | ST-150 | B15AT1200/B15AV1000; 15SW1200 | 15CS1200 |
| 0.2mm | NO20/NO20-1200 | 20JNEH1200/20JNEH1500 | B20AV1200/B20AV1300; 20SW1200; 20TWV1200 | 20CS1200/1500 |
| 0.25mm | NO25 | 25SW1250/1300; 25TWV1300 | ||
| 0.27mm | NO27 | B27AV1400; 27SW1400; 27TWV1400 | ||
| 0.35mm | M270-35A | 30JNE230/35JNE250 | B35A210/230/250/270; 35SW270/35SWH1900/35SWYS5000 ； 35TW250 | 35CS210/230/250/270 |
| 0.5mm | 50JNE470 | B50A270/290/350/470/600/800； 50SW400； 50TW400 |
BLDC Stator Stacks FAQS
BLDC stators commonly use two primary winding configurations: Star (Y) and Delta (Δ).
Star (Y) Configuration: In this setup, one end of each winding is connected to form a common point (neutral), while the other ends are connected to the power supply. This configuration provides higher torque at low speeds, improved efficiency, and better starting performance.
Delta (Δ) Configuration: In the Delta configuration, the windings are connected end-to-end in a closed loop, forming a triangle. This setup allows for higher speed operation and increased power output at the cost of reduced low-speed torque. Delta winding is suitable for high-speed applications but can produce more heat and require better cooling.
The number and shape of the stator slots significantly impact the motor’s efficiency, torque ripple, and overall performance. Fewer slots can reduce cogging torque, while more slots can provide smoother operation but may increase complexity.
Choose Superior BLDC Motor Laminations!
Do you get the high-quality Bldc stator lamination? Lamnow can manufacture high-precision lamination for BLDC motors, please contact us if you need it.