Lower-slewing electromagnetic overhead crane

Structure and operating principle

A lower-slewing beam with electromagnets lifts and reorients steel products.

The magnetic attachment holds suitable ferromagnetic material through a magnetic circuit. Effective holding depends on contact, material and geometry; crane capacity and magnet capacity are separate limits.

QLC turns the magnetic beam below the lifting arrangement. Confirm the complete swept envelope of the beam and long load before any rotation.

Application and selection

For assessed handling of steel products with a matching magnet arrangement. Plates, bundles, profiles and irregular scrap present different contact and stability conditions and cannot share an assumed lifting rating.

Working method

1. Before work, authorised personnel confirm the load and its centre of gravity, the permitted machine configuration, the route and receiving position. Complete the checks specified for the equipment, verify protective functions by the approved method and stop if a defect affects safe operation.

2. Check the material, temperature, thickness and contact surface against the attachment instructions. Energise and confirm secure holding, make a controlled trial lift, transfer within the exclusion zone and release only after the load is supported.

3. After the task, place the load on stable supports and leave the equipment in its prescribed safe state. Record faults and abnormal events. Maintenance or jam clearance requires secure isolation of relevant energy, including stored hydraulic, pneumatic and gravitational energy.

Precautions and maintenance

Rust, scale, air gaps, thin material, bending and heat can reduce holding force. Keep people clear of the entire drop zone and verify the actual power-failure protection and recovery procedure; do not promise a universal backup holding time.

Inspection frequency, wear/discard criteria, lubrication, brake adjustment and replacement parts follow the supplied instructions and applicable local requirements. Only competent personnel may maintain the equipment; return to service follows the prescribed checks.

Configuration and standards

This is an equipment-selection and operating-principle overview, not a complete operator manual, lift plan or certificate. Verify rated load, duty, geometry, environment and protective functions against the nameplate, approved drawings and delivered instructions. Do not combine separate series maxima into one promised configuration.

Requirements follow the destination and installation, not the website language. China: determine the applicable GB/T references and statutory equipment obligations. EAEU destinations: check the applicable TR CU/EAEU regulations, amendments and conformity documents. English-speaking markets: select the relevant national rules; US OSHA and UK HSE references are not universal law. EU projects require their own applicable conformity assessment.