A hydraulic crane is a powerful lifting machine that uses hydraulic power to hoist and to lift heavy materials and loads. The smaller cranes are usually powered by electric or diesel engines, while the hydraulic cranes have internal hydraulic systems that enable the cranes to lift heavier objects. As all cranes are equipped with wired ropes, a winder, chains and sheaves, the hydraulic crane also consists of the same parts. The only difference is that it uses a hydraulic force. For this reason, the hydraulic crane is used in various industries for lifting heavy shipping containers, tractor trailers, large construction equipment and machines, etc. The construction industry depends mostly on the versatile, flexible and efficient hydraulic crane.
Every hydraulic crane includes a cabin for the operator that is mounted on a steel base. The hydraulic crane can either be on wheels/rollers or fixed into the ground. The design is very simple and includes several elements. The power in the engine comes from a hydraulic pump which creates fluid pressure in the hydraulic system. As you know, the fluid cannot be compressed, which means that the force is applied to every part of the hydraulic crane. This significantly increases the power and the performance of the hydraulic crane.
The main feature of the hydraulic crane is its long arm, known as a boom. The most common form is the telescoping boom, which is usually very long and allows the operator to reach loads from greater distances. The hydraulic crane is easy to operate and maintain. The hydraulic crane has very simple design, but is capable of performing the most difficult tasks. Also, the hydraulic crane can lift heavy objects with exceptional ease. However, the lifting capacity varies, depending on the model used.
The working principle of the hydraulic crane is quite simple – hydraulic fluid is transmitted to every part of the crane, including cylinders and motors, and this fluid creates great amount of power. Generally, the hydraulic fluid is petroleum oil with specific additives in it. The pressure is created by operator’s command and the flow of hydraulic fluid is regulated by control valves. The main feature of every hydraulic crane is the lifting capacity, which indicates how strong the hydraulic system and its construction is. For example, a compact hydraulic crane can lift a maximum of 40 tons. So, when choosing a hydraulic crane, you need to determine the nature of your work.
