Square Suction Electromagnet

The Square Suction Electromagnet (also known as a rectangular suction magnet or rectangular electromagnetic chuck) refers to an electromagnetic device designed with a cuboid or cubic structure, wherein the magnetic field is distributed across the rectangular contact surface. Unlike the point-concentrated magnetic field of a circular suction magnet, the magnetic field of a square suction magnet is distributed across a rectangular plane; this allows the magnetic field to penetrate uniformly into the underside of the workpiece, making it particularly suitable for lifting large-area plates, long strip-shaped workpieces, as well as castings and die-cast parts with uneven surfaces.
1. The suction-type electromagnet is a specific category among various types of electromagnets, commonly referred to as an "electromagnetic chuck" or "electric chuck" (hereinafter collectively referred to as "electric chucks"). An electric chuck functions by utilizing a current-carrying coil to generate a magnetic field; using a conductive material as the medium, it endows the device with magnetic properties similar to those of a permanent magnet. The core material is typically constructed from pure iron or silicon steel—materials that are easily magnetized yet just as easily demagnetized—ensuring that the device exhibits magnetism only when energized and loses it immediately upon power disconnection.
2. The housing of this product is constructed from pure electrical-grade iron, ensuring that no residual magnetism remains after prolonged use. The coil bobbin is injection-molded using flame-retardant, reinforced nylon plastic, offering excellent insulation properties, high resistance, and high-temperature durability. The coil itself is wound using standard-compliant (GB) enameled copper wire.
We have specialized in the R&D and manufacturing of electromagnets for many years, and our products are ISO9001 certified. We offer a comprehensive, one-stop service ranging from design and prototyping to mass production. Our dense array technology for square magnetic poles ensures uniform adsorption and stable clamping. Prior to leaving the factory, every product undergoes rigorous suction force testing and insulation inspections to guarantee stable and reliable quality.

Core Advantages
1. Rectangular magnetic field distribution: Enables uniform adsorption over large surface areas.
2. Single-setup clamping: Allows for machining on five sides of the workpiece in a single clamping operation.
3. Fully sealed, waterproof design: Both the product surface and the cable outlet are treated with epoxy potting, allowing the device to function normally while submerged in water. It is suitable for use in humid environments and underwater operations, and is frequently utilized for lifting metal objects from water.
4. Powerful and Stable Suction:
Electro-permanent magnetic technology ensures stable suction free from thermal deformation, guaranteeing precise and reliable workpiece positioning throughout the machining process.
5. Energy-Efficient and Eco-Friendly—No Heat Generation:
The square magnetic chuck generates magnetic force using high-energy magnetic materials; it operates without time constraints, consumes no energy, and generates no heat, making it both environmentally friendly and simple to operate.

Applicable Environment
Avoid prolonged contact with high-temperature ferrous objects:
The unit generates heat during operation; allow it to dissipate heat naturally.
When operating in high-temperature environments, auxiliary cooling devices (e.g., water cooling, air cooling) must be employed. (Note: Water cooling requires appropriate waterproofing protection.) The unit's internal temperature should be maintained below 130°C.
For use in outdoor, underwater, or complex environments, please contact our company to specify your requirements; customized solutions are available.
Prevent the suction surface from colliding with hard, sharp-edged objects. Any deformation (unevenness) of the suction surface will result in reduced suction force and compromise adsorption performance.

Installation and Usage
1. The electromagnetic chuck operates on a DC power supply. Common operating voltages include DC 5V, 6V, 12V, and 24V; AC 220V versions are available via custom order. Always adhere to the voltage specifications indicated on the product label. (Customization is available for special requirements upon submission of technical parameters.)
2. Wiring Diagram: (Note: The wiring method is non-polar; there is no distinction between positive and negative terminals.)
3. Within the rated voltage range, the suction force can be adjusted by varying the applied voltage (a directly proportional relationship).
4. Secure the unit in place by utilizing the threaded mounting holes located on the back panel.

Matters Needing Attention
To achieve the maximum rated suction force, the electromagnetic chuck must be operated under the following conditions:
1. The object being lifted (workpiece) must be composed of a material with excellent magnetic permeability.
2. The power supply and operating voltage must be utilized correctly and in accordance with specifications.
3. The contact surface of the object being lifted must be extremely flat and clean.
4. The contact area between the object being lifted and the chuck must be equal to or greater than the chuck's suction surface area (i.e., the chuck's maximum outer diameter).
5. To achieve the nominal rated suction force, the object being lifted must have a thickness of at least 8mm. If the thickness is less than 8mm, the resulting suction force will be reduced.
6. There must be absolutely no gap or intervening material between the chuck and the object being lifted. Failure to meet any of the above conditions will result in a reduction of suction force, preventing the unit from reaching the maximum suction capacity indicated on the product label.