In China, the domestic cranes predominantly consist of straight boom トラック搭載クレーンs. 一般的に言えば, in the majority of regions across the country, straight boom cranes are the norm, with the exception of Guangdong Province where curved boom cranes are more frequently encountered.
When contemplating the purchase of a crane, a crucial factor lies in determining your specific working purpose. The curved boom comes with several distinct characteristics. It boasts a relatively faster action speed, offering flexibility, convenience, and a lower maintenance cost. Nevertheless, when it comes to lifting capacity and working range, it falls short compared to the straight boom. On the other hand, the straight boom showcases a robust overload capacity and a broader working range. しかし, it incurs higher maintenance and repair expenses. When assessing practicality, the straight boom often emerges as a more suitable choice.
Let’s delve deeper into the specific characteristics of the straight boom:
- The straight boom incorporates a steel wire rope, enabling it to operate effectively at both high and low positions. This feature significantly expands the working area available. The presence of the steel wire rope allows for greater flexibility in adjusting the height and reach of the boom, enabling it to access and handle loads in various positions and scenarios.
例えば, in construction sites where loads need to be lifted and placed at different heights and distances, the ability to operate at multiple positions provides a distinct advantage. It enables the crane to handle a wider range of tasks without the need for frequent repositioning of the vehicle or complex adjustments.
- The boom of the straight boom crane is notably longer. When comparing the same tonnage of straight boom and curved boom cranes, the straight boom typically exceeds the curved boom by 2-3 メートル. This additional length proves highly beneficial in situations where longer reach is necessary, such as when working on large-scale construction projects or handling loads at greater distances.
A longer boom allows the crane to access areas that would otherwise be out of reach, reducing the need for additional equipment or repositioning of the crane. It enhances the crane’s ability to handle larger and more complex job sites with greater efficiency.
- The straight boom is equipped with rear outriggers, a feature absent in the curved boom. The rear outriggers play a crucial role in providing stability and support to the crane during operation. They help distribute the weight of the lifted load evenly, minimizing the risk of tipping or instability.
In scenarios where heavy loads are being lifted or where the working conditions are less than ideal, the presence of rear outriggers significantly enhances the safety and reliability of the crane’s operation. They ensure that the crane remains stable even when subjected to significant forces and moments.
- In terms of lifting torque, the straight boom holds an advantage. Lifting torque refers to the rotational force exerted by the crane when lifting a load. A higher lifting torque enables the straight boom to handle heavier and more challenging loads with greater ease.
If the intended application involves loading and transporting goods within a warehouse, the curved boom crane may be more suitable. This is because the curved boom’s enhanced flexibility allows for more precise maneuvering in confined spaces where the need for rapid and precise positioning is paramount.
しかし, for applications that require handling heavier loads over longer distances or in more open and demanding environments, the straight boom’s greater lifting torque, longer boom, and the presence of rear outriggers make it a more reliable and efficient choice.
結論は, understanding the unique characteristics and advantages of straight boom cranes is essential when making informed decisions regarding crane selection based on specific working requirements and conditions. By carefully considering these factors, one can ensure the acquisition of a crane that best suits the job at hand, maximizing productivity, safety, and operational efficiency.
