At Sino, we make better motor cores. We know that the rotor is the moving heart of an electric motor. How well it works depends on how carefully its thin metal plates are put together. Our rotor lamination stacking service gives your motors more power, makes them run more quietly, and helps them use less energy. For our partners around the world in the car, factory, and aerospace industries, the rotor stack is where good materials and careful building come together.
With Sino, you get a perfectly built rotor every time. We make sure every part fits perfectly. This careful work helps your motors last longer and run better. We are experts at making the ideal electric motor core for what you need.
The way we perform lamination stacking for the thin metal plates in a rotor core is very important. We have a set of automatic tools designed for very exact and fast work. This helps us offer the best way to build your core, no matter the design or how many you need. We choose the right lamination stacking method based on your motor’s design and its job.
Welding creates a very strong connection between the plates. This method of lamination stacking makes a core that is almost like a single, solid piece. This is needed for motors that spin very fast.
This lamination stacking method works like connecting puzzle pieces. Each metal plate has small parts that lock into the plate next to it. It’s a clever way to build a stator or rotor core without using any heat.
For top-performing motors, we use a special glue for lamination stacking. This makes the entire stack of plates behave like a single piece of metal. This method is much better for reducing noise and handling heat.
Sometimes, traditional methods are the best. Using rivets or bolts is a simple, strong way to perform lamination stacking.
Parameter | Interlocking | Laser Welding | Adhesive Bonding |
Strength | Good | Excellent | Excellent |
Cost (For many units) | Low | Medium | High |
Noise and Vibration | Fair | Good | Excellent |
How Well It Handles Heat | Fair | Good | Excellent |
Best For | General Factory, HVAC | High-Speed, Automotive | High-End EV, Aerospace |
The type of metal used for the thin plates, or laminations, is very important. Our work starts by helping you pick the right material for your motor’s job. To make motors work better, especially in fast-spinning electric car motors, we focus on:
We have many types of electrical steel. We suggest using thinner plates (like 0.20mm – 0.35mm) to cut down on “eddy current losses.” This is a kind of wasted energy that creates heat.
We give you detailed information to help you choose the best metal. We help you find a balance between low energy loss, ease of manufacturing, and good magnetic properties.
Our team knows which steels have high “permeability.” This helps your motor produce more power without reaching a magnetic limit, known as “saturation.”
We use only the best materials for lamination stacking at Sino. This helps your motor perform great without overheating.
Material Type | Why It’s Good | Where It’s Used |
Silicon Steel | This is a special electrical steel that guides magnetic energy well. This means less energy is wasted. We use top grades like M270-50A, B35A300-Z, and B50A400-Z. | Used in most motors, from your refrigerator to a factory machine. |
Cobalt Iron Alloy | This is a very strong magnetic metal. It works well even when it is very hot. It is a high-performance choice, like our ‘Hiperco®’ style alloy. | Used in airplane motors or other special machines. |
Nickel Iron Alloy | This metal is great for motors that need to switch on and off very quickly. It is used in a high-frequency motor. | Used in special electronics and medical tools. |
Motor Use | Common Speed Range | Key Material Features | Sino’s Manufacturing Focus |
EV Main Motors | 400 – 1,200 Hz | Very Low Energy Loss, Good Magnetic Flow | Handling ultra-thin materials, exact stamping, advanced joining. |
Industrial AC Motors | 50 – 120 Hz | Strong Magnetic Field, Good Price | High-speed stamping, strong interlocking or welding. |
High-Speed Servo Motors | 200 – 800 Hz | Low Energy Loss, High Strength | Excellent control of shape and size, advanced balancing. |
Aerospace Parts | Varies (often >400 Hz) | High Power for its Weight, Works at High Heat | Tracking special materials, careful quality testing. |
We have a careful process for every core we build. We follow these steps to ensure you get the best possible product. This applies whether we are making just one prototype or thousands of units for you.
It all starts with a good plan. We use computer tools like CAD to design the best cutting tools. Then, we cut the plates.
Next, we stack the plates together. This step must be done perfectly. Our building process creates rotors with special shapes to make them run quieter. We are able to make complex designs that result in very quiet motors, including:
After the lamination stacking is done, we add final touches to make the core even better.
Our promise of high quality is backed by a careful checking process using the best tools. Sino is proud to meet high standards like IATF 16949.
Every rotor we ship comes with a full quality report. This gives you complete information and proof that your parts meet all your requirements.
A quality rotor core from Sino prevents problems from happening. Our careful work directly improves how your motor runs.
Sino makes rotor and stator cores for many needs, from single prototypes to large-scale production.
At Sino, we mix our deep knowledge of materials with modern, automatic manufacturing. We do more than just stack metal plates; we build the moving heart that powers new electric machines. Work with us to build the core of your motor with the care, quality, and quantity you need.
Contact Sino today for affordable lamination stacking and top-performing motors. Let’s build a better motor core together.
