An excavator magnet is a specialised attachment mounted on an excavator, primarily used for adsorbing, transporting, and loading/unloading ferromagnetic materials. It generates a powerful suction force through electromagnetic or hydraulic principles, enabling it to quickly grasp metal materials such as scrap steel, steel plates, rebar, and cast iron ingots, upgrading the excavator from a simple “digging tool” into a multi-functional device capable of “digging + lifting and transporting.”
Compared to traditional suspended suction cups, excavator magnets are connected to the excavator’s overhead crane via movable components, allowing for operation and pushing from multiple angles. They offer higher adsorption stability, higher efficiency in adsorbing scrap iron, and significant advantages such as lower noise, lower fuel consumption, and lower operating costs. Contact us now for professional 1-on-1 customised service.
YG Excavator Magnet Technical Parameters
| Item/Model | Unit | YGML02 | YGML04 | YGML06 | YGML08 | YGML10 | YGML14 | YGML20 |
| Suitable Excavator | ton | 4-6 | 7-11 | 12-16 | 17-23 | 24-30 | 31-40 | 41-50 |
| Weight | kg | 1400 | 1500 | 1890 | 2000 | 2200 | 2500 | 2800 |
| Power | kW | 5 | 8 | 8 | 10 | 10 | 15 | 15 |
| Outer Diameter | mm | 700 | 800 | 900 | 1100 | 1200 | 1300 | 1400 |
| Working Flow | lpm | 30-55 | 50-100 | 90-110 | 100-140 | 130-170 | 200-250 | 250-320 |
| Working Pressure | bar | 170 | 180 | 190 | 200 | 210 | 250 | 250 |
The Working Principle of the Excavator Magnet
The working principle of excavator magnets varies depending on the technology used, but can be broadly categorised into three types:
Electromagnetic suction cups are the most common type. Their core principle is electromagnetic induction—an electromagnetic coil is installed inside the suction cup. When energised, the coil generates a strong magnetic field, which is transmitted to the contact surface through a magnetically conductive panel, firmly adsorbing ferromagnetic materials. After the power is cut off, the magnetic field disappears, and the material automatically falls off. Electromagnetic chucks use DC power and feature a stable suction force and low residual magnetism.
Hydraulic chucks rely on a hydraulic system to generate suction force. Powered by the excavator’s hydraulic system, a hydraulic pump removes air between the chuck and the material, creating a negative pressure zone. Atmospheric pressure then tightly adheres the material to the chuck surface. When release is needed, the hydraulic system releases the internal negative pressure, weakening the suction force and allowing the material to fall off.
Hydraulic electromagnetic chucks combine the two, adding a mechanism that converts hydraulic power into electrical energy to a standard electromagnetic chuck. The excavator’s hydraulic system drives a generator to power the electromagnetic coil. This design ensures a strong electromagnetic suction force without requiring an external power source, fully utilising the advantages of the excavator’s own power system.
YG Excavator Magnet Core Advantages
YG is a leading manufacturer of magnetic attachments for construction machinery, adhering to both national and EU CE standards. With self-developed patented technologies including hydraulic circuit voltage stabilisation, residual magnetism zeroing, and coil burnout prevention, YG offers six irreplaceable core advantages compared to ordinary generic excavator magnetising cups:
- Upgraded Coil for High Durability: Utilising a double-layered, oxygen-free pure copper thickened coil with vacuum impregnation sealing, it is waterproof, oil-proof, and dust-proof, increasing breakdown voltage by 40%, preventing coil burnout during rainy seasons, and extending the warranty period to 24 months.
- Adaptive Voltage Stabilisation System: Self-developed hydraulic adaptive pressure stabilisation valve adapts to excavator oil pressure fluctuations, maintaining constant magnetic force even with unstable oil pressure, preventing material drop accidents.
- Lightweight and Thickened Integrated Body: A Q355 high-strength steel integrated welded body reduces weight by 15% for the same suction force, without increasing the load on the excavator’s boom, protecting the boom cylinder.
- One-click residual magnetism clearing technology: Zero residue during unloading; one-click unloading of thick steel plates and sealed iron materials, eliminating the need for manual hammering and improving work efficiency.
- Modular universal parts: All YG suction cups use interchangeable electronic controls, connectors, and wear-resistant base plates, reducing after-sales replacement costs by 60%; parts are readily available and shipped immediately.
- Dual standard factory compatibility: Compatible with domestic national standards and EU modification standards for export; one machine is compatible with domestic and international excavator models, supporting customised interfaces, voltages, and sizes.
Excavator Magnet FAQs
Q: What materials can the excavator magnet adsorb?
A: The excavator magnet can only adsorb ferromagnetic metals, including scrap steel, scrap iron, cast iron ingots, steel plates, rebar, steel balls, etc. Non-ferromagnetic metals such as copper and aluminium cannot be adsorbed.
Q: Does the excavator magnet require an external power supply?
A: The electromagnetic suction cup requires a power supply. It can be powered by an external power source through the control cabinet rectification, or by the excavator’s own generator, or by a diesel generator for continuous power generation. Hydraulic and electromagnetic chucks are directly driven by the excavator’s hydraulic system, requiring no external power supply.
Q: How to choose the appropriate chuck specification?
A: Primarily based on the excavator’s tonnage and the weight of the material being handled. Generally, a 10-ton excavator is compatible with a 60-80cm chuck. Suction strength, operating voltage, continuous working time, and chuck size also need to be considered.
Q: Can excavator chucks be used in high-temperature environments?
A: Use a normal temperature type when handling materials below 100℃; a high temperature type above 100℃; and an ultra-high temperature type above 600℃. When purchasing, select the appropriate temperature resistance rating based on the actual working conditions.
Why Choose YG Manufacturer?
Among numerous brands, YG excavator chucks have become a popular choice in the market due to their powerful suction, efficient operation, excellent durability, and highly competitive factory-direct prices. Whether you are the head of a scrap metal recycling company, a manager of a construction demolition project, or an investor looking to expand your equipment leasing business, YG excavator magnets can provide you with efficient and reliable material handling solutions.
For more product details or to obtain customised solutions, we recommend contacting YG directly for the latest quotes and technical support.
