Sensor Magnets ,encoder magnets ,magnetic target ,hall magnets-SPMAGNET

Sensor Magnets

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We developed magnetic solutions for the magnetic sensor market for many years. The company's legacy of engineering expertise and customer awareness has created the most reliable and robust magnetic solutions for magnetic sensor technology. We have rich experience to help you choose the suitable magnets for hall effect sensor,speed sensor, magnetic encoder, location sensor, flow sensor ,Pneumatic Cylinder and reed switch applications .

We had rich experiences to supply sensor magnets matching with chips of AMS , RLS , Melex , IC-Haus , Hamlin, Standex and so on.

Encoder Magnets

Encoder Magnets or Magnetic Targets are specialized permanent magnetic components that work with magnetic encoders to detect rotational or linear position, speed, and direction. They serve as the "information carrier" in the encoding system, converting mechanical motion into measurable magnetic signals for precise motion control.

Key Characteristic of Encoder Magnets

- Precision Magnetization: Most use multi-pole magnetization (e.g., 16, 32, or 64 poles) with uniform magnetic field distribution, ensuring high-resolution signal output (often up to 16-bit or higher).

- Durable Materials: Common materials include neodymium-iron-boron (NdFeB) for strong magnetic force, and samarium-cobalt (SmCo) for resistance to high temperatures (up to 200°C+), suitable for harsh industrial environments.

- Compact Design: Available in small forms like discs, rings, or cylinders, fitting into space-constrained applications (e.g., miniaturized motors, robotic joints).

- Environmental Resistance: Excellent resistance to vibration, dust, and moisture, eliminating the need for complex sealing compared to optical encoders.

» Two pole Cylinder magnets for rotary magnetic position sensors

» 1-track multipole ring magnet for off-axial rotary motion sensing

» 2-track encoder disc /Magnetic target

Reed switch magnets

The principle of Magnetic proximity switches is to generate a magnetic field around the sensor through changed the position and polarity of trigger so that make the sensor working . Reed switches are commonly used inautomobile door sensors, industrial control systems, fitness equipment, and security devices. They are also used inweight limiters andproximity sensors, with adjustable trigger distances and high durability (up to 1 million cycles). ‌We offer the wide range of magnets as magnetic trigger for reed switch.

» Typical products of reed switch magnets

Pneumatic Cylinder Magnets

The magnetic ring can be used for Peumatic cylinder to detected the position. the When the magnetic ring moving with the Peumatic cylinder is close to the induction switch, the two magnetic reeds of the induction switch are magnetized and the contacts are closed, resulting in electrical signals. When the magnetic ring leaves the magnetic switch, the tongue reed loses its magnetism, the contacts are disconnected and the electrical signals disappear. In this way, the piston position of the cylinder can be detected and the corresponding solenoid valve action can be controlled.

»Typical products of Pneumatic Cylinder Magnet