7 ton overhead crane is portable and convenient to use. It has light weight, compact structure, flexible move, and fast speed, perfect choice for frequent and light lifting work. Ellsen, a reliable bridge crane supplier, provides various types of top quality crane, and makes lifting work easier. Get great deal for portable crane from Ellsen!
Key factors influence crane working speed
Crane working speed includes lifting speed, trolley travelling speed, crane travelling speed. Working speed is influenced by many factors.
First, it is related to the weight. The crane with small and medium lifting can adopt high speed to improve efficiency, the crane with heavy lifting is suitable to choose low speed to reduce driving-power and improve travelling stability and safety.
Working speed is also related to working class and working requirement. The crane with high class, frequent use and high efficiency can adopt fast speed, working mechanism with low class and adjusting purpose can adopt low speed. The crane only used for equipment installation and maintenance can choose low speed. According to practical needs, it can also adopt double speed (high and low speed), dead speed or adjustable speed.
What’s more, working speed is also related to working room. The crane with long travelling distance, high lifting height is suitable for high speed.
The crane with short travelling distance is not suitable for high speed. With development of industry, the crane with much transporting work mostly adopts high speed. The crane used for installation and maintenance adopts adjustable speed. For some cranes with special functions, such as the crane for quench, should has fast-down device, for crane with high lifting height, it should improve lifting speed, adopt low speed for heavy material, high speed for no-load, or high down-speed to increase efficiency.
Ellsen great 7 ton overhead crane for sale
1. Various types, customized service
2. Durable material, reliable quality
3. Tiny size, portable weight
4. Simple system, easy maintenance
5. Fast speed, flexible move
Get a free quote from Ellsen: