Editorial Technical Reference

Magnet System

This page explains how Magnet System is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

This product is an electromagnetic lifting and handling system designed for use with overhead cranes in industrial environments.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Magnet System

Definition
This product is an electromagnetic lifting and handling system designed for use with overhead cranes in industrial environments. It is a component-level device that enables contact-free handling of ferrous materials such as steel plates, beams, scrap metal, and other magnetic loads. The system operates on electromagnetic induction, where electrical current flowing through copper coils generates a strong magnetic field. When energized, the magnet creates a magnetic flux that attracts and holds ferromagnetic materials; de-energizing releases the load. Typical systems include rectifiers, control panels, and safety features for controlled operation.

Key specifications, as listed in the directory, include a rated lifting capacity of 1 to 10 tonnes, a magnet diameter of 100 to 800 mm, and a magnetic flux density of 0.8 to 1.2 Tesla. Power consumption ranges from 0.5 to 5 kW, with supply voltages of 220 to 480 V AC (three-phase, 50/60 Hz) per IEC 60038. The duty cycle is 25 to 60% per IEC 60034-1, and the operating temperature range is -20 to 60 °C. Ingress protection is rated IP54 to IP65 per IEC 60529, and the material grade for the housing is Q235B to Q345B per GB/T 700 and GB/T 1591. The weight of the magnet varies from 50 to 2000 kg, affecting crane capacity and installation.

Materials used include copper wire, electrical steel laminations, aluminum housing, and epoxy insulation. These specifications are reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application. The system is intended for use in machinery and equipment manufacturing, and it is essential to confirm that the selected magnet meets the required lifting capacity, duty cycle, and environmental conditions. Always consult the manufacturer's documentation for installation, operation, and maintenance guidelines.
Working Principle
The system operates on electromagnetic induction. When an electric current passes through copper coils, it generates a magnetic field. The magnetic flux attracts and holds ferromagnetic materials. De-energizing the magnet releases the load. The system includes rectifiers to convert AC to DC, control panels for operation, and safety features to prevent accidental release. The strength of the magnetic field depends on the current and coil design, and the holding force is influenced by the material grade and surface condition of the load.
Common Materials
Copper wire, Electrical steel laminations, Aluminum housing, Epoxy insulation
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Lifting Capacity1–10 tDepends on magnet size and material grade
Magnet Diameter100–800 mmLarger diameter increases lifting force
Magnetic Flux Density0.8–1.2 THigher flux improves holding force
Power Consumption0.5–5 kWDepends on magnet size and duty cycle
Supply Voltage220–480 V ACThree-phase, 50/60 HzIEC 60038
Duty Cycle25–60 %Higher duty cycle requires larger magnetIEC 60034-1
Operating Temperature-20–60 °COutside range may demagnetize or damage coil
Ingress ProtectionIP54–IP65IP65 for outdoor or dusty environmentsIEC 60529
Material GradeQ235B–Q345BSteel housing; higher grade for impact resistanceGB/T 700, GB/T 1591
Weight50–2000 kgAffects crane capacity and installation

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Electromagnetic Coil
    Generates magnetic field when energized with electrical current
    Material: Copper wire with epoxy insulation
  • Magnet Face Plate Part
    Contact surface that interfaces with the load, distributes magnetic flux
    Material: Electrical steel laminations
  • Housing/Casing Part
    Protects internal components from physical damage and environmental factors
    Material: Aluminum or steel
  • Terminal Box
    Electrical connection point for power and control cables
    Material: Cast aluminum with rubber seals
  • Suspension System
    Connects magnet to crane hook or spreader beam
    Material: Alloy steel chains or cables
  • Rectifiers
    Turn the incoming AC into the DC the coil needs.
  • Control Panels
    Switch and monitor magnet excitation and release.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Magnet System.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar (standard), up to 10 bar with special housing
other spec: Max lifting capacity: 50,000 kg, Duty cycle: 60% ED, Power supply: 380-480V AC, 50/60Hz
temperature: -20°C to +80°C (operating), -40°C to +100°C (storage)
Media Compatibility
✓ Steel plates and sheets ✓ Iron castings and forgings ✓ Scrap metal and billets
Unsuitable: Explosive atmospheres (ATEX zones 0/1) without certified explosion-proof design
Sizing Data Required
  • Material weight and dimensions (kg, mm)
  • Lifting height and cycle time requirements
  • Material temperature and surface condition

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Demagnetization
Cause: Exposure to temperatures exceeding the material's Curie point, mechanical shock/vibration, or strong opposing magnetic fields that disrupt magnetic domain alignment
Corrosion or Physical Degradation
Cause: Environmental exposure to moisture, chemicals, or abrasive particles leading to surface oxidation, pitting, or coating failure, compromising structural integrity and magnetic performance
Maintenance Indicators
  • Audible humming, buzzing, or rattling indicating loose components or vibration-induced wear
  • Visible discoloration, rust, or flaking on magnet surfaces, or accumulation of ferrous debris indicating loss of magnetic containment or seal failure
Engineering Tips
  • Implement strict temperature monitoring and control to keep the system below the magnet material's maximum operating temperature, and use physical shielding to protect against external magnetic fields
  • Apply appropriate protective coatings (e.g., nickel, epoxy) based on the operating environment, and establish regular cleaning schedules to remove contaminants and inspect for early signs of wear or corrosion

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASTM A977/A977M-17 Standard Specification for Permanent Magnet Assemblies

Quoted from the published standard.

Manufacturing Precision
  • Magnetic Field Strength: +/-5% of specified value
  • Dimensional Tolerance (Critical Features): +/-0.05mm
Quality Inspection
  • Gauss Meter Testing for Magnetic Field Verification
  • Dimensional Inspection using Coordinate Measuring Machine (CMM)

Manufacturers of Magnet System

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Kinocranes
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Machinesol
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What is the rated lifting capacity of this electromagnetic magnet?

The rated lifting capacity is listed as 1 to 10 tonnes, depending on the magnet size and material grade. Always verify the exact capacity for your specific model with the manufacturer.

What supply voltage is required?

The supply voltage is 220 to 480 V AC, three-phase, 50/60 Hz, per IEC 60038. Confirm the voltage and frequency with your facility's power supply and the manufacturer's specifications.

What is the operating temperature range?

The operating temperature range is -20 to 60 °C. Operating outside this range may demagnetize or damage the coil. Verify the limits for your application.

What ingress protection rating does the magnet have?

The ingress protection rating is IP54 to IP65 per IEC 60529. IP65 is recommended for outdoor or dusty environments. Confirm the rating for your specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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