I. Lifting and Hoisting When multiple cranes are used to lift a single component simultaneously, the load borne by each individual crane should meet the requirements of the special construction plan.In the context of large-scale construction projects or complex industrial operations where heavy components need to be lifted, it is often necessary to employ multiple […]
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I. Initial Setup and Opening of the Grab At the commencement of the working process, the supporting wire ropes are used to hoist the grab to an appropriate position. These supporting wire ropes play a crucial role in ensuring that the grab is properly positioned above the area where the material handling operation is to […]
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I. Introduction Due to the relatively long strokes of load lifting and lowering, boom extension and retraction, and boom luffing in mobile cranes, the acceleration phenomenon caused by the force of gravity during the downward movement of the mechanisms or loads is a rather prominent issue. To address this, mobile cranes typically employ the following […]
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I. Failure Phenomena of Couplings Severe Wear on Gear Teeth Surfaces: One of the common failure phenomena of couplings is the severe wear on the gear teeth surfaces. This wear can significantly affect the meshing and transmission performance of the coupling. When the gear teeth surfaces are worn, the smooth engagement between the gears is […]
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I. Introduction to Different Types of Jacks There are various types of jacks, mainly including claw jacks, hydraulic jacks, and screw jacks. Each type has its own unique characteristics, which result in different advantages and disadvantages. Understanding these can help users make more appropriate choices according to specific application scenarios. II. Claw Jacks Advantages Integrally […]
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The installation and erection of cranes, particularly tower cranes, is a critical process that demands strict adherence to safety regulations and operational procedures. The following are the key requirements and guidelines for the proper installation and erection of cranes, ensuring safety, efficiency, and reliability. 1. Understanding Crane Specifications Before beginning the installation process, it is […]
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I. Pre-Operation Inspection and Load Limitation Thorough Inspection of Components: Before using a manual chain hoist, the operator must conduct a detailed inspection of each and every component and part, including each link of the chain. Only when everything is in good condition can it be put into use. This initial inspection is of crucial […]
I. Introduction Crane cables play a vital role in the operation of cranes, ensuring the transmission of power and signals for various functions. However, different arrangements and operating conditions of the cables require specific attention to ensure their safe and efficient use. This article will discuss in detail the precautions for using crane cables when […]
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Lifting slings are widely used in lifting operations due to their many advantages, including being lightweight, easy to use, non-damaging to the surfaces of the lifted objects, providing smooth and stable lifting, offering high strength and safety, and being resistant to corrosion and wear. They are also highly efficient, cost-effective, and available in bright colors […]
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I. Personal Protection Measures Proper Use of Safety Harnesses by Workers at Heights: Workers engaged in suspended work at heights should firmly fasten their safety harnesses. The selection and wearing of safety harnesses should comply with the relevant provisions of the current national standard “Safety Harnesses” (GB6095). When working at heights, the safety of workers […]