The safety inspection specifications for double-beam cranes encompass several key aspects to ensure their safe and reliable operation. These specifications are detailed as follows:

General Requirements

The crane manufacturer should provide valid qualification certificates, product factory certificates of conformity, installation, use, and maintenance manuals, and other accompanying documents.

The installation unit should provide construction records, self-inspection reports, accident records and handling reports during installation, and proof of design changes approved by the manufacturer during installation.

The crane should have clear signs of rated lifting capacity and safety inspection conformity marks from the quality and technical supervision department on its prominent parts.

Site and Structural Inspection

The site where the crane is installed should be checked for flatness and firmness to ensure a stable foundation for the crane.

The crane's tracks, steel wires, steel plates, and other components should be inspected for wear, fracture, or corrosion.

Safety facilities around the crane, such as protective railings and fire-fighting equipment, should be complete and effective.

The crane's main load-bearing components should not show overall instability, severe plastic deformation, or cracks. If any of these issues are found and cannot be repaired, the crane should be scrapped.

Mechanical and Electrical System Inspection

The brake system of the crane should be inspected to ensure it works normally and reliably.

The traveling system, including tracks, wheels, and reducers, should be checked for smooth operation and absence of abnormal vibrations.

The lifting system, including drums, steel wires, and drum brakes, should be inspected to ensure safe and stable lifting.

The electrical system, including motors, cables, and control cabinets, should be checked for normal circuitry and good insulation.

Safety Device Inspection

The weight limiter should be checked for accuracy and reliability to prevent overloading.

The travel limiter should be checked for accuracy to prevent the crane from exceeding its travel limits.

The emergency stop device should be checked for sensitivity and reliability to ensure it can stop the crane in emergency situations.

The anti-collision device should be checked for proper operation to prevent collisions with other equipment or objects.

Documentation and Record Inspection

The crane's registration, archives, and maintenance records should be checked to ensure traceability of its operation.

Training and assessment records of operators should be checked to ensure they have received relevant training and operate according to regulations.

Safety inspection reports should be reviewed to record each safety inspection result of the crane, including issues and solutions.

Additional Specific Inspections

For cranes used in harmful environments such as dust, toxins, radiation, noise, and high temperatures, necessary protective measures should be taken to protect the operator's safety and health.

The safety distance between fixed and moving objects around the crane should be checked to ensure it meets the minimum requirements.

The crane should have a safe and convenient space for maintenance or an auxiliary maintenance platform.

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