Compare hydraulic magnets by carrier, generator-and-magnet layout, operating weight and hydraulic requirements. Check the plate, mounting, controls and condition.
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How to compare hydraulic magnets for excavators
This category covers magnetic attachments powered by the hydraulics of an excavator or another compatible carrier and intended for handling ferromagnetic material. First identify the system included in the listing. It may be an all-in-one hydraulic magnet with an integrated generator, or a separate hydraulic generator connected to an independent lifting magnet. The term “hydraulic magnet” alone does not confirm what is supplied.
Specifications to compare
System layout: check whether the listing includes the magnet, generator, controller, electrical and hydraulic lines, suspension and adapter. Record the magnet voltage, power and required duty cycle from the documentation for the exact setup.
Carrier and operating weight: compare the recommended carrier class, the complete attachment weight and the machine's permitted load and stability. Include the adapter, quick coupler or chain suspension in the assessment.
Hydraulics: confirm required oil flow, operating pressure, permitted return-line pressure and whether a separate drain line is needed. Check hose sizes, couplings, flow direction and control method.
Magnet and task: compare plate diameter or dimensions, shape, weight, electrical requirements and demagnetising method. Selection should reflect the type and geometry of the ferromagnetic material and the intended loading or separation process.
Mounting and controls: a fixed attachment and a chain-suspended magnet behave differently during collection and loading. Verify the adapter, suspension length and condition, hose and cable routing, and control from the cab.
What to inspect on a used hydraulic magnet
Ask for photographs of identification plates, model and serial numbers for the main components, connection diagrams, hydraulic and electrical data, and service history. Inspect the underside of the magnet plate, housing, generator, hydraulic motor, hoses, fittings, cables, chains and adapter for wear, repairs, cracks, distortion and leakage. Test magnetising, demagnetising, the controller and indicators on a compatible carrier. Confirm the precise scope of supply; a missing generator, controller or suitable mounting may require additional components before the system can work.
Buyer FAQ
Will a hydraulic magnet lift every metal?
No. It is intended primarily for ferromagnetic materials such as iron and steel. Aluminium, copper and many other metals are not attracted in the same way, so the intended material should be defined before choosing the system.
Is an auxiliary hydraulic circuit enough?
Not automatically. Required flow and pressure, permitted return pressure, any drain-line requirement, couplings and the control method must all match the exact carrier.
What information should a listing include?
Useful details include make, model and serial numbers, whether the generator is integrated or separate, scope of supply, operating weight, recommended carrier, oil flow and pressure, magnet electrical data, plate dimensions, mounting type, controls, documentation and wear photographs.
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