Your motors will run cooler. They will be stronger. They will be more accurate. This is what you get with Sino’s laminations for servo motor. We build the core of your motor, the magnetic center, to give you the best results. Our high-quality lamination stacks for servo motor help you make smaller, faster, and more powerful motors for your most important jobs.
At Sino, we understand you need top-quality parts for your advanced machines. You need parts that work correctly every single time. Our laminations for servo motor, made from electrical steel, are built for the highest quality. They are the secret to making a great servo motor. We help you get great energy savings and precise control in every motor you create.
The core of a motor is made of many thin metal sheets. These sheets are called laminations. We make all the parts you need for a full motor core, including complete lamination stacks for servo motor.
We make both the stator laminations, which form the fixed outer part of the motor, and the rotor laminations for the spinning inner part. When put together, they create a perfect stator and rotor stack.
We carefully stack each thin sheet to build a solid lamination stack for servo motor. This strong iron core guides all the magnetic energy. We make sure the shape and size of the laminations for servo motor are a perfect match for your design.
The core is made with teeth and slots. We make the tooth and yoke parts to your exact needs. We also check that the slot insulation fits perfectly to keep the wires safe.
Every small detail is important. We focus on the air gap. This is the very small space between the stator and rotor. A perfect air gap gives you more power. We also create special end laminations that help keep the stack strong. If you need your motor to run extra smoothly, we can make skewed rotor laminations. For some types of motors, we also make exact pole laminations.
We can build a segmented stator, which makes it easier to add the wires. Our team works carefully to make sure every stator core assembly and rotor core assembly is made without any mistakes.
Choosing the right material for the core is a very important first step. This choice decides how much magnetic power the motor can handle, how much energy it loses, and how hot it can get. Sino uses only the best materials for our laminations for servo motor to give you top performance.
Silicon steels are the most common material for many motors. This is because they are easy to make and offer great performance for the price. For servo motors that run at high speeds, thinner sheets (like 0.20 mm, 0.27 mm, or 0.35 mm) are needed to reduce energy loss from eddy currents. For general servo motors where price is a main concern and the motor runs at normal speeds, silicon steels are a great all-around choice. After stamping the parts, we heat them up. This is a very important step called stress-relief annealing. It helps bring back the material’s magnetic strength.
For jobs that need the most torque and power possible in a small space, cobalt-iron (Co-Fe) alloys are the best choice. They have the strongest magnetic field capacity of any soft magnetic material you can buy. They are perfect for high-torque direct drive motors, parts for airplanes and spacecraft, and robots. These are all areas where making things small and light is the most important goal.
These materials are very different from regular metal structures. This gives them special magnetic and electrical abilities. They are the best for very fast servo motors (over 10,000 RPM), high-speed drives, and any job where saving energy is the top priority. When designing with them, you have to be careful because they can be brittle.
Material Properties Comparison Table
Property | Silicon Steel (M19, 0.27mm) | Cobalt-Iron Alloy (49% Co) | Amorphous Metal | Nanocrystalline Metal |
Saturation Flux Density ($B_{sat}$) | ~1.9 T | ~2.35 T | ~1.56 T | ~1.2 T |
Electrical Resistivity ($\rho$) | ~50 µΩ·cm | ~40 µΩ·cm | ~130 µΩ·cm | ~115 µΩ·cm |
Core Loss @ 1T, 400Hz ($P_{core}$) | ~10 W/kg | ~25 W/kg | ~1.5 W/kg | ~0.8 W/kg |
Thermal Conductivity ($\lambda$) | ~25 W/(m·K) | ~30 W/(m·K) | ~9 W/(m·K) | ~12 W/(m·K) |
Relative Cost | 1x | 15-25x | 8-12x | 10-15x |
Typical Thickness | 0.20 – 0.65 mm | 0.10 – 0.35 mm | 0.015 – 0.025 mm | 0.015 – 0.025 mm |
Protective Coats: Every lamination in our lamination stacks for servo motor gets a special insulation coating. This coating stops the thin metal sheets from touching each other. This is very important to prevent energy loss. We use top-quality coatings, such as the standard C5 coating or a special epoxy coating for laminations.
The benefits of a great material can be lost if the parts are not made well. At Sino, we use the best methods for making our laminations for servo motor. As your partner, we have perfected our ways of working. This makes sure you get all the benefits from the high-quality materials we use.
Stamping (Punching): This is the best method for making a lot of parts. It is very fast and the cost for each part is low. Stamping can cause stress in the metal and create small, sharp edges called burrs. We fix this. We always heat the parts after stamping (stress-relief annealing). We also take great care of our tools. This keeps the burrs extremely small, only a few microns high.
Laser Cutting Laminations: This method doesn’t need special tools. This makes it perfect for making sample parts quickly. It’s also great for complex shapes and for making small or medium numbers of parts. We use special laser settings and follow-up steps. This reduces the area damaged by heat (the HAZ). It also stops tiny short-circuits from forming between the laminations for servo motor.
Abrasive Waterjet Cutting: This is a “cold-cutting” method. It uses a high-pressure stream of water with tiny particles. It creates almost no heat stress or HAZ. This leaves a smooth edge with no burrs. It is a great choice for cutting thick materials. It’s also good for materials that can be damaged by heat.
Wire EDM Cutting: To make sample motor laminations, we use a very thin wire with an electrical spark to cut the steel. This process is called wire electrical discharge machining (EDM). It is a slow process, but it creates perfect parts.
Notching and Punching: We also use notching and high-speed punching machines for different designs.
Interlocking: This is a cheap and fast way to put the stack together. But, it can cause small short-circuits and stress spots. These problems can lead to more energy loss and can block heat from moving through the stack.
Welding: Welding makes the stack very strong and rigid. However, the welds create a path for eddy currents to flow. This can greatly increase energy loss. We usually only use welding when the stack’s strength is the most important thing.
Adhesive Bonding (Backlack): This is the best method for high-performance motors. Here is how it works: We coat each lamination with a special glue. Then, we cut, stack, press, and heat the stack to harden the glue.
Riveting of Laminations: We can use small metal pins called rivets to hold the stack. We also use a method called cleating of laminations.
Lamination Annealing: After the parts are made, we heat them in a special oven. This makes the steel work even better.
Deburring of Laminations: We make sure there are no sharp edges. Every part is smooth.
Our laminations for servo motor are used in many kinds of motors and machines. They give the power and control that modern technology needs.
The best lamination stack for servo motor is not a one-size-fits-all part. It is a custom part, designed for the exact needs of your final product. We work together with you to create these custom solutions.
When you choose Sino, you get better performance. Our laminations for servo motor are made to solve the biggest challenges in motor design. We do this by improving performance in many different areas at once.
At Sino, we use the best software to design your parts. Our engineers use computer programs to design and test ideas before making anything. We use a method called Finite Element Analysis (FEA). This lets us see exactly how the magnetic field will work. This helps us make the magnetic path design perfect for your laminations for servo motor.
We test everything. We check the insulation on the laminations to make sure the coating is working perfectly. We check the Back EMF (Electromotive Force) to be sure the motor will perform as expected.
We follow all the important rules for quality. We use the standards set by top international groups. This includes groups for testing materials and electrical parts. This ensures our parts are safe, dependable, and compatible with other parts made anywhere in the world. To promise quality, we use machines from the best equipment makers for our stamping, laser cutting, and EDM. Our entire quality system is designed by experts.
Choose Sino for the core of your next servo motor. Contact us today to speak with our engineers. We can give you a price quote for your project. Let our lamination stacks for servo motor help you build a better, stronger, and more accurate machine.
