A pneumatic magnet is not a magnet that uses air to create a magnetic field. Instead, it is a device that combines an electromagnet with a pneumatic actuator (usually a piston/cylinder). The electromagnet provides the holding force, while the pneumatic system provides the movement to engage and disengage the magnet from a ferromagnetic surface (like steel).

Think of it as a robot gripper that uses a magnet instead of fingers. The pneumatic part moves the magnet into position, and the electromagnet turns on to latch onto the object.

The operation is typically a two-step process:

1. Positioning (Pneumatic): Compressed air is supplied to a pneumatic cylinder. This cylinder extends or retracts a rod, moving the permanent magnet assembly into contact with the target object (e.g., a steel plate).

2. Latching (Permanent magnetic): Once in position, the permanent magnets inside will act as powerful force source.

3. Releasing: To release, the electrical current is cut off (demagnetizing the core), and the pneumatic cylinder retracts or extends to pull the magnet away from the object.

Some advanced models may use the pneumatic force to help break the residual magnetic bond (residual magnetism) upon release.

• Permanent magnet: The core component that generates the magnetic force. It consists of Neodymium permanent magnets.

• Pneumatic Cylinder: Provides linear motion to position the magnet.

• Mounting Frame/Body: Houses the electromagnet and connects it to the piston rod.

• Solenoid Valves: Control the flow of compressed air to the cylinder (extend/retract).

• Electrical Connectors: For power and control signals to the electromagnet.

• Sensors (Optional): Can be used to confirm the magnet’s position (e.g., “extended,” “retracted”) or its status (“on,” “off”).