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LD Type Electric Single Beam Crane vs QD Type Electric Double Beam Bridge Crane

In the industrial field, bridge cranes play a crucial role, carrying the heavy responsibility of material lifting, and are a key tool for improving production efficiency. Among them, LD type electric single beam crane and QD type electric double beam bridge crane each have unique performance characteristics and demonstrate their own value in different industrial scenarios. 1. Structural design The LD type electric single beam crane has only one main beam on its structure and is used in conjunction with CD1 or MD1 electric hoists. It is a lightweight and small lifting machinery with a relatively simple structure. The QD type electric double beam bridge crane has two main beams, consisting of a box shaped bridge, a large vehicle operating mechanism, a small vehicle, and electrical equipment, with a relatively complex structure. 2. Performance parameters The LD type electric single beam crane generally has a span of 7.5-28.5 meters and is suitable for workshops and warehouses with relatively small spans. The lifting capacity is generally between 0.5-50 tons, suitable for lifting small and medium-sized goods. The span of QD type electric double beam bridge crane is usually between 10.5-31.5 meters, and even larger spans can be customized according to special...

Revealing the Box – type End Beam: Understand the Box – type End Beam in One Article

1. What is an end beam? The end beam is an important part of a bridge crane. It’s located at both ends of the crane and is a structural component that connects the wheels and supports the main beam of the crane. To put it simply, the end beam is like the “feet” of the crane. It runs on the rails through the wheels, enabling the crane to move within the working area. In the field of cranes, the box – type end beam is more widely used.   2.Advantages and Disadvantages of Box – type End Beams Advantages Exceptional Strength and Stiffness：The box – type end beam is fabricated by precisely welding steel plates into a box – shaped structure, establishing a robust mechanical system. It can effortlessly withstand substantial pressure and bending moments. Outstanding Overall Stability：Thanks to its unique box – type design, the end beam demonstrates excellent resistance to deformation and torsion when subjected to complex external forces. Precise Adaptation to Heavy – load Scenarios：In the applications of large – tonnage and ultra – large – tonnage cranes, especially in places like port terminals and heavy – machinery manufacturing workshops where safety requirements are extremely high and...

How to Choose a Suitable Chain Hoist?

Electric Chain hoists have significant advantages and are widely favored. They are easy to operate. The design of the handle and buttons is reasonable, allowing even beginners to quickly get the hang of it. They are also safe and reliable, equipped with multiple precise protection mechanisms. Once overloaded, they will immediately alarm and stop running. Their environmental adaptability is excellent. Thanks to special protection and a stable power system, they can operate stably even in harsh environments. The speed adjustment is flexible. The lifting and lowering speeds can be adjusted according to the tasks and goods, and the lifting height can be adjusted by adding or subtracting the length of the chain. Their structure is simple and durable, with few failures and low maintenance costs. So, how to select a chain hoist that meets your own needs? 1. Determine the Lifting Requirements Clearly identify the weight of the heaviest object that needs to be lifted. The rated lifting capacity of the selected chain hoist must be greater than or equal to the actual weight, and a margin should be reserved to ensure operational safety and the service life of the equipment. 2. Determine the Lifting Height Accurately measure the maximum...

How to Judge Whether the European Electric Hoist Needs Maintenance

To ensure the safe and efficient operation of the European electric hoist, regular maintenance work must be carried out. The following is how to judge whether the European electric hoist needs maintenance and some suggestions. 1. Operation Time and Usage Frequency Usage Duration Standard: To avoid long-term operation, which may cause wear on key components such as motors and reducers and gradually invalidate the lubricating oil, when the cumulative operation time reaches a certain limit (specifically depending on the manufacturer’s suggestions and the complexity of the equipment), a comprehensive maintenance should be considered. Usage Frequency Consideration: Frequent starting, stopping, and load lifting and lowering will accelerate the fatigue and wear of components. It is advisable to conduct simple inspection and maintenance monthly and more in-depth maintenance every 3-6 months. 2. Performance Performance Slow Running Speed: When the lifting or running speed of the electric hoist decreases significantly, it may be caused by motor failure, wear of transmission components, or too tight braking of the brake. Uneven speed, such as intermittent pauses or acceleration during the lifting process, may be due to faults in the electrical control system or jamming of mechanical transmission components. Reduced Load Capacity: If the electric hoist...