To ensure the safe operation of cranes, various safety protection devices are installed. These devices are crucial for preventing accidents and maintaining stability during lifting operations. Below, we discuss seven essential safety devices that enhance crane operation security: 1. Load Indicator The load indicator is installed on the side of the main boom (typically on […]
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Overhead crane operators must undergo training and pass an examination, and only those who hold an operation certificate are allowed to operate independently. Without special training and passing the relevant examination, one shall not operate alone. This is a fundamental requirement to ensure that operators have the necessary professional knowledge and skills to handle the […]
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Lifting chains are an essential component of lifting machinery, playing a crucial role in enhancing operational efficiency and expanding the working range of lifting equipment. These chains can be adjusted in length according to the lifting height required, making them indispensable for various industrial applications. However, to ensure safety, efficiency, and longevity, it is critical […]
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A truck-mounted crane, also known as a truck-mounted lifting and transportation vehicle, is widely used in municipal construction, coal mining, factories, warehouses, docks, and landscaping projects. These cranes are essential for lifting and transporting various construction materials and other heavy equipment. SANY primarily produces small to medium-sized truck-mounted cranes, available in both knuckle-boom and straight-boom […]
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Truck-mounted cranes, officially known as truck-mounted lifting and transportation vehicles, have experienced significant growth in the specialized vehicle market in recent years. Their applications are vast, ranging from power maintenance and prefabricated housing construction to landscaping and engineering projects. When equipped with additional accessories, these cranes can be used for even more purposes, such as […]
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The quality of crane girders serves as the foundation for ensuring the quality of track installation. Generally, the installation datum line of the track is the datum line of the crane girder. Before track installation, a careful inspection of the crane girder must be carried out. Simultaneously, the datum line of the crane girder can […]
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The hydraulic system provides power for the operational devices of an engineering crane. Proper maintenance of the hydraulic system is crucial for enhancing the crane‘s operational reliability. Typically, hydraulic systems must undergo flushing before they are officially put into use. The purpose of this flushing process is to remove contaminants, metal debris, fibrous compounds, iron […]
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Load limiters and load moment limiters are collectively referred to as overload protection devices. Overloading is one of the primary causes of crane accidents. In mild cases, overloading can damage crane components, causing motor overload and structural deformation. In severe cases, it can result in broken beams, tower collapse, arm fractures, or even complete machine […]
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Factor 1: Unsafe Conditions of the Crane Itself One of the primary reasons for the falling of loads from crane hooks is the inherent unsafe conditions of the crane itself. These conditions can stem from various sources, including design flaws, manufacturing defects, improper installation, and inadequate maintenance. 1. Design Deficiencies Poorly designed cranes can present […]
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The structure of the short-stroke block brake is shown in Figure 1-17. When the electric motor is powered on, the electromagnet coil connected in parallel with the motor winding is also energized. This generates an attractive force in the stationary core (9), which pulls the moving core (8). Consequently, the push rod (7) is pushed […]