Hydraulic crane trucks are nothing new in the industrial equipment world. These vehicles have been in use and progressively improving for decades, with better and stronger hydraulic systems making work easier and safer every day. Today’s hydraulic technology is better than ever, but do you actually know how hydraulic crane systems work? Understanding how these crane trucks do what they do is an important part of getting the most - and safest - use from this essential piece of equipment.
The Basics of Hydraulics
Hydraulic crane systems are fluid-powered systems that use various pumps, hoses, valves, cylinders, motors, fluid reservoirs and of course, hydraulic fluid. A motor, driven either by electricity or PTO, is what makes an hydraulic pump work. These pumps push fluid through the hoses, valves, and cylinders, creating pressure that activates whatever equipment is being run by the system. Because it is a closed fluid system, the larger the hydraulics and other components, and the more fluid that is pumped, the more power the system can generate!
Hydraulics - Strong But Delicate
Hydraulic systems operate fairly simply, and are extremely powerful. Yet despite this, these systems can be relatively delicate. Since all parts of an hydraulics system work together, damage to one part can cause damage to other parts, or another failure within the system. One of the main ways hydraulic systems lose power is through fluid leaks. This is due to reduced fluid levels, or fluid being forced out of the closed system, which affects its ability to generate power. Fluid that becomes too hot due to high pressure, leaky seals, or failure within the hydraulics cooling system is another common problem, and also one that can cause damage to other cylinders and seals. Pressure is required to run hydraulics, but pressure also causes wear and tear on seals and other parts of an hydraulics system, making proper maintenance and regular replacement of worn parts essential.
Measuring Hydraulic Power
Hydraulic strength is measured in PSI, or pounds per square inch, and is based upon the cubic displacement of hydraulic fluid. Today’s hydraulic crane trucks are available with various PSI. Still, one important thing crane buyers must understand is that PSI is not everything. Foot pounds of force is actually more important, since it is possible to generate the same amount of force in a variety of ways, by using different PSI hydraulic systems. Since higher pressure creates greater wear and tear on hydraulic components, buyers of crane trucks should look for systems designed to create higher force, with a lower PSI system. This will help keep maintenance and repair costs lower, while providing the same powerful results.
Today’s hydraulic crane trucks are highly sophisticated, and more powerful than ever. Based on the type of work crane trucks will be used for, and the amount of power needed to perform these tasks, crane buyers have many options to choose from. For more details on how to select the best hydraulic crane systems, contact an experienced crane trucks dealer to discuss your needs, today.