杭州之江磁業 List of Products and Services

It is a magnet that is resistant to high temperatures, difficult to break, and has excellent mechanical strength. Uses of the magnet: mask aligners, high-grade computers.

• Other motors
• Other semiconductor manufacturing equipment
• Industrial PCs

It is a sintered product mainly composed of neodymium (Nd), iron (Fe), and boron (B), and it has the highest magnetic energy among current magnets. Due to its tendency to oxidize, surface treatment is generally required depending on the application and usage environment. Neodymium magnets are the strongest among magnets. The change in magnetic force with temperature is relatively large, so appropriate shape and grade selection is necessary for high-temperature use.

• relay
• Servo motor
• Amplifier

It is a molded sintered product primarily composed of samarium and cobalt, available in two material types: 1-5 series (SmCo5) and 2-17 series (Sm2Co17). It has a very strong magnetic force, second only to neodymium, and possesses heat resistance. However, due to its brittleness, care must be taken in handling to avoid chipping or cracking. Additionally, it is resistant to rust, so surface treatment is not necessary, but surface treatments such as plating can be applied to prevent chipping. Compared to neodymium magnets, the magnetic force is slightly reduced (about 1/4 lower), but it is still a very powerful magnet. The change in magnetic force with temperature is relatively small, making it suitable for applications requiring temperature stability and high-temperature use.

• relay
• DC Motor
• Sensors

It is a metal magnet with high residual magnetic flux density, primarily composed of aluminum (Al), nickel (Ni), cobalt (Co), and iron (Fe), and manufactured through casting. It has excellent mechanical strength, being resistant to high temperatures and unlikely to crack. However, it has the drawback of being prone to demagnetization. The magnetic force is about 1/5 to 1/10 that of neodymium magnets. It is also resistant to rust in its raw magnetic material form, so surface treatments like plating are usually not necessary. The temperature change rate of the magnetic force (rate of decrease with temperature) is excellent, making it suitable for high-temperature applications. It has few cracks or chips, and its mechanical strength is the best. However, it is susceptible to a decrease in magnetic force due to impact, so care is needed in handling and usage.

• Sensors
• Stepping motor
• Scale

We provide high-quality scientific education magnets, including traditional horseshoe magnets and painted bar magnets, suitable for children of all ages. Through magnetic educational magnets, we teach children the basics of magnetism and poles, stimulate their interest in learning, and encourage scientific exploration.

• others