Only Trained Personnel Should Operate the HoistThe operation of the electric hoist should only be handled by individuals who have received proper training in using the equipment. This ensures that the operator is knowledgeable about safety practices and the operational procedures required for safe usage. Do Not Operate in Explosive AtmospheresThe electric hoist should never […]
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1. Foundation Preparation before Tower Crane Installation There are two types of foundations for tower cranes: track foundation and concrete foundation. The construction of the track foundation should meet the following requirements:(1) Subgrade Bearing Capacity: For light – duty tower cranes (with a lifting capacity of less than 30kN), it should be 60 – 100kPa; […]
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The electrical system of a truck crane plays a vital role in enabling communication between the operator and the machine, monitoring the crane’s operating conditions, and ensuring its safe performance. The crane’s dashboard is particularly important for monitoring critical components like the engine, brakes, and other essential systems related to the crane’s movement and lifting […]
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Electric hoists are powerful and efficient tools used for lifting heavy objects in various industrial and construction settings. However, to ensure safe operation and to prevent accidents or damage to both the hoist and the environment, users must adhere to a set of safety guidelines. The following is a comprehensive set of safety precautions that […]
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1. Structure Types Screw jacks are classified into different structure types, which play a crucial role in determining their operational characteristics and application scenarios. Understanding these structure types is essential for proper selection and utilization of screw jacks in various mechanical systems. Type 1: In this structure type, the screw rod simultaneously performs a rotational […]
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I. Main Technical Parameters of the Crane The technical parameters of a crane represent its working capacity and serve as the fundamental basis for designing the crane. The main technical parameters of a crane include: lifting capacity, lifting height, amplitude, operating speed of the mechanism, productivity, slewing radius, and lifting torque. (I) Lifting Capacity The […]
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Truss cranes are widely used in the bridge erection construction sites of construction enterprises due to their characteristics such as flexible lifting, simple operation, and convenient installation and disassembly. Therefore, ensuring the safe operation of truss cranes plays a crucial role in improving work efficiency, reducing production costs, preventing casualties, and establishing a good corporate […]
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A certain company undertook a project with 30 floors above the ground, a building height of 95m, and a construction area of 32,000 square meters. A QTZ125(ZX6016) tower crane provided by the developer was used. This tower crane did not come with a random operation manual. It was installed by embedding 16-M36 bolts for tensioning, […]
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Some fast – assembly lower – slewing tower cranes with telescopic tower – body structures and horizontal booms (such as the QT16 – type tower crane) mostly complete the erection and installation according to this method. The installation procedure is as follows: (1) Setting up the Outriggers Pull out the four outriggers and lower the […]
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Feb
The performance and evaluation methods of hydraulic oils are crucial to ensure the optimal functioning of hydraulic systems, which are widely used in industrial, construction, and automotive machinery. Hydraulic oil must possess several key properties to meet the demanding requirements of modern hydraulic systems, which are becoming more compact, high-pressure, and automated. This article outlines […]