What Is a Servo Hydraulic Press?

Posted on Dec 23, 2020

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Servo Hydraulic Press

The servo hydraulic press is a type of device that integrates the hydraulic press system which is driven by a servo motor, with precision pressure and position transducer for closed-loop control. The servo power which the servo hydraulic press utilizes is very common in the modern equipment. 

Let’s take a walk  around the city, roaming every street, and what do you see? We are living in a dynamic world, and there are so many interesting things for us to see every day. If we are paying enough attention, we would notice that the city which we all live in is full of colors and different shapes. A lot of modern buildings are built from metals. These shining substances have given humanity a chance to create the structure which would have been deemed impossible in the past. Despite being malleable and ductile, to bend and change the shape of the metals can sometimes still prove to be a difficult job. In order to bend and craft the metals into the contours we desired, it requires a power equipment which has the ability to generate the force to crash everything. This brings us to the subject of today, the servo hydraulic press.


What Is a Hydraulic Press?

So what is servo hydraulic press? We have to first understand what a hydraulic press is. A hydraulic press is a type of device which utilizes a hydraulic cylinder to create an incredible huge force. The principle behind the function of the hydraulic press is Pascal's law. Under Pascal's law, when the pressure is given to a confined fluid, the pressure change will happen throughout the entire fluid. Within the hydraulic press, there is a device called the piston, which serves as a pump. The piston will then support a decent amount of the mechanical force to a small area of the sample. Even in the larger area, there is a piston. The piston which works in the larger area will create a larger mechanical force. The common applications of the hydraulic presses included, forging, clinching, molding, blanking, punching, deep drawing, and metal forming operations.

:: Read more : What is An Automatic Press Machine?


What Is a Servo Hydraulic Press?

The servo hydraulic press is a type of device that integrates the hydraulic press system which is driven by a servo motor, with precision pressure and position transducer for closed-loop control. The servo power which the servo hydraulic press utilizes is very common in the modern equipment. The concept is very simple: the servo mechanism is an automatic equipment which adopts the technique of error-sensing negative feedback. The reason for having the function of error-sensing negative feedback is to modify the action of a mechanism. In the servo mechanism, there is a built-in encoder or other position feedback mechanism which are used on the displacement controlled applications. This way, it will ensure the output is achieving the desired effect.  

:: Read more : High Speed Press Doubles the Productivity


The advantages of the servo hydraulic press

When compared with the common hydraulic press, the servo hydraulic press comes with several advantages which in turns made it appears more advanced. The servo hydraulic press has the ability to adjust the speed during the process of striking. The servo hydraulic press is also very fast approaching, as the pressing speed and the return speed do not require a long functioning time. When comparing the total energy consumption with the common hydraulic press, the servo hydraulic press is capable of lowering its energy consumption from 30 percent to 60 percent of the energy consumption of the common hydraulic press.

Besides, during the process of striking, the servo hydraulic press will create less noise when compared to the common hydraulic press. There is also a notable advantage of the servo hydraulic press. The parameters which present in the system of the servo hydraulic press are all capable of being progressed on the central color touchscreen. In general, the servo hydraulic press shows the strength of high degree of reliability. The servo hydraulic press also does not require a lot of maintenance, and it can still perform outstandingly throughout its lifetime. 


Other types of hydraulic presses 

Hydraulic press comes from a big family. Beside the famous servo hydraulic press, there are several other types of hydraulic presses in the industries. For example, the four-column hydraulic presses are a type of hydraulic press which are used for precision tooling applications. It is greatly recommended for the equipment in which the pressure is a major consideration. The four-column presses have the ability to distribute the pressure equally. Another example is the two pillar hydraulic press. Based on the type of the fluid which is utilized to transfer the power, the two pillar hydraulic press can be divided into the water press or the oil press. The two pillar hydraulic press is commonly utilized in the equipment of forging and stamping.

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