News

Pre-operation inspection

• Appearance inspection : Confirm that the hook has no cracks, deformation, wear or rust (if the opening exceeds 15% of the original size or the torsional deformation exceeds 10°, it must be scrapped).

• Rotational flexibility : Ensure that the hook can rotate freely without jamming.

• Anti-drop device : Check whether the spring lock plate or safety card is intact to prevent the sling from accidentally falling off.

• Rated load mark : Check the rated load on the hook nameplate and overloading is strictly prohibited.

Suspending the load correctly

• Balanced center of gravity : The hook should be located directly above the center of gravity of the object being lifted to avoid sliding or overturning due to tilted lifting.

• Rigging selection : Use matching slings, wire ropes or chains, ensuring that the angle does not exceed 120° (when using multiple slings).

• Hook mouth direction : The load should be hung at the bottom of the hook. It is prohibited to hang it directly on the hook tip or pull it sideways or diagonally.

Lifting and operation

• Trial lifting : slowly lift the machine 0.5m off the ground and then pause to check the balance, braking performance and binding firmness.

• Smooth operation : Avoid sudden acceleration, sudden stops or large swings, and do not use the hook to drag cargo.

• Height control : When the hook reaches the limit position (at least 1 turn of wire rope away from the drum), stop rising immediately.

Post-job operations

• Return to empty position : Raise the hook to more than 2 meters above the ground, away from personnel and equipment.

• Cleaning and inspection : remove debris from the hook (such as welding slag, rope residue) and record any abnormal conditions.

Prohibited Conduct

• Overloading : Even brief overloading may cause plastic deformation of the hook.

• Personnel transportation : It is strictly forbidden to carry passengers on the hook (special working conditions require a special hoist cage and approval).

• Welding repair : If the hook is defective, it must be replaced and cannot be corrected by welding or heating.

Environmental safety

• Hazardous areas : Avoid operating near high-voltage lines, flammable and explosive areas, or crowded areas.

• Bad weather : Stop operations when wind speed exceeds Level 6 (about 10.8m/s) or visibility is less than 50 meters.

Maintenance and scrapping

• Regular NDT : Magnetic particle inspection is carried out every six months in high-risk locations (such as metallurgical workshops).

• Scrap standards : Immediately stop using in the following situations:

  • The hook shank threads are corroded or deformed;

  • The dangerous section is worn to 10% of its original size;

  • Visible cracks appear on the hook body.

Collaborative work

• The signal is clear : it must be directed by a dedicated person, using standard hand gestures or walkie-talkies, and multiple people are prohibited from giving commands at the same time.

Pre-operation inspection

• Appearance inspection : Confirm that the hook has no cracks, deformation, wear or rust (if the opening exceeds 15% of the original size or the torsional deformation exceeds 10°, it must be scrapped).

• Rotational flexibility : Ensure that the hook can rotate freely without jamming.

• Anti-drop device : Check whether the spring lock plate or safety card is intact to prevent the sling from accidentally falling off.

• Rated load mark : Check the rated load on the hook nameplate and overloading is strictly prohibited.

Suspending the load correctly

• Balanced center of gravity : The hook should be located directly above the center of gravity of the object being lifted to avoid sliding or overturning due to tilted lifting.

• Rigging selection : Use matching slings, wire ropes or chains, ensuring that the angle does not exceed 120° (when using multiple slings).

• Hook mouth direction : The load should be hung at the bottom of the hook. It is prohibited to hang it directly on the hook tip or pull it sideways or diagonally.

Lifting and operation

• Trial lifting : slowly lift the machine 0.5m off the ground and then pause to check the balance, braking performance and binding firmness.

• Smooth operation : Avoid sudden acceleration, sudden stops or large swings, and do not use the hook to drag cargo.

• Height control : When the hook reaches the limit position (at least 1 turn of wire rope away from the drum), stop rising immediately.

Post-job operations

• Return to empty position : Raise the hook to more than 2 meters above the ground, away from personnel and equipment.

• Cleaning and inspection : remove debris from the hook (such as welding slag, rope residue) and record any abnormal conditions.

Prohibited Conduct

• Overloading : Even brief overloading may cause plastic deformation of the hook.

• Personnel transportation : It is strictly forbidden to carry passengers on the hook (special working conditions require a special hoist cage and approval).

• Welding repair : If the hook is defective, it must be replaced and cannot be corrected by welding or heating.

Environmental safety

• Hazardous areas : Avoid operating near high-voltage lines, flammable and explosive areas, or crowded areas.

• Bad weather : Stop operations when wind speed exceeds Level 6 (about 10.8m/s) or visibility is less than 50 meters.

Maintenance and scrapping

• Regular NDT : Magnetic particle inspection is carried out every six months in high-risk locations (such as metallurgical workshops).

• Scrap standards : Immediately stop using in the following situations:

  • The hook shank threads are corroded or deformed;

  • The dangerous section is worn to 10% of its original size;

  • Visible cracks appear on the hook body.

Collaborative work

• The signal is clear : it must be directed by a dedicated person, using standard hand gestures or walkie-talkies, and multiple people are prohibited from giving commands at the same time.