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    • crane machine > NEWS
    04 18, 2020
    Inspection technology of hook
    Inspection technology of hook

    1. The hook used for the human-driven lifting crane is tested with 1.5 times the rated load as the inspection load;2. The hook used for the power-driven lifting crane is tested with twice the rated load as the inspection load;3. After removing the inspection load, the hook should not have any obvious defects and deformations, and the increase of the opening should not exceed 0.25% of the original size;4. For the hooks that pass the inspection, the inspect marks should be printed in the low-stress area of the hook, including the rated lifting weight, factory standard or name, inspection mark, p ...

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    04 15, 2020
    Crane machine operation rule
    Crane machine operation rule

    The crane machine shall not be lifted in any of the following situations:1. The lifted weight exceeds the rated lifting capacity of the crane machine;2. The weight of the heavy object is unknown;3. The lifting signal is unknown;4. Heavy objects are not tied securely;5. If open-air operation, encounters bad weather such as strong winds of level 6 (level 5 on the beam), heavy rain, heavy fog, etc .;6. Night work lighting is not good;7. Pulling diagonally;8. The wire rope is severely worn;9. The crane which is repaired.

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    04 11, 2020
    Measures during the rainy season of the lifting machine
    Measures during the rainy season of the lifting machine

    1. The component stacking place should be level and solid, and drainage work should be done around it. It is strictly forbidden to accumulate water and soak in the component stacking area;2. The crane machine foundation must be 15cm higher than the natural ground, and it is strictly prohibited to soak the subgrade with rainwater;3. It is not advisable to carry out lifting work on rainy days. On rainy days, the surface of the component and the hoisting rope are wetted, resulting in a reduction in the coefficient of friction between the rope and the component, and serious quality safety accident ...

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    04 08, 2020
    Control methods of electric hoist bridge crane
    Control methods of electric hoist bridge crane

    Electric hoist bridge cranes are light and medium duty cranes, are mainly used for the assembly, maintenance, and loading and unloading of machinery workshops, warehouses, stockyards, and power stations, but can not work in a place with a relative humidity greater than 85%, and can not lift the molten metal and toxic, flammable, and explosive materials.Electric hoist bridge cranes control methodThe operation mode is divided into three types: ground control, operation room control, and wireless remote control. User can choose two or three combinations of the above.* The ground control adopts ta ...

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    04 01, 2020
    Low headroom chain electric hoist design
    Low headroom chain electric hoist design

    Low headroom chain electric hoist is an ultra-low type chain hoist, it is mainly used in places with limited working space. This specification has two types: single chain and double chain. Low headroom chain electric hoist is composed of 2 trolley and an lifting host.Low headroom electric hoist has a unique optimal structure in shortening the distance between the body and the beam track, is suitable for use in workplaces with low plant heights and strict requirements for lifting height, especially suitable for temporary built plants or places where effective lifting space is required.

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