Slab handling overhead crane

Structure and operating principle

A dedicated slab tong handles slabs in casting, stacking and furnace-transfer operations.

A slab tong grips the slab at defined contact positions. The lifting assembly must be matched to slab dimensions, surface condition, temperature and the tong’s permitted engagement geometry.

Application and selection

Supports slab transfer, stacking and furnace-area handovers within an approved production process. Hot and cold slab service can impose different requirements on the attachment and surrounding equipment.

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. Align the tong with the prescribed grip points, verify positive engagement and lift in a controlled manner. Lower onto stable stacking supports and unload the tong before opening or disengaging it.

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

Do not lift an incompatible slab thickness or rely on assumed friction on scale-covered surfaces. Confirm grip wear limits, temperature range and release interlocks from the actual tong manual; lifting-attachment standards do not by themselves resolve hot-process hazards.

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.