What are the causes of mechanical damage to hydraulic presses?

1. When the hydraulic pump of the four-column hydraulic press works, there is mechanical resistance between the relative moving parts between the bearing and the shaft, between the shaft and the seal, and between the vane and the inner wall of the pump, and the collision resistance will be lost. This loss is related ...

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How do hydraulic press manufacturers control noise?

1. The selected components are as low-noise as possible, such as selecting low-speed motors and oil pumps, and valve circuits with better closed control components. 2. In the welding process, the quality of tensile strength should be strictly controlled, the installation connector should be selected with higher preci...

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What is the test procedure of the hydraulic press?

Commissioning of the test process of the four-column hydraulic press: 1. Press the (pump start) button to adjust the pressure relay to 2-5Mpa (counterclockwise is to reduce the working pressure); 2. Turn the selector switch to manual state;...

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What should be done after the hydraulic press is used?

1. Clean the hydraulic oil pump and filter screen. 2. Check and tighten the upper and lower cylinder heads, motor bases and hammer body foundation screws to ensure that the hydraulic press is tight and reliable. 3. The control handle switches of the hydraulic press are set to neutral....

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Does the hydraulic press have any requirements for the working environment?

The four-column hydraulic press has requirements for the working environment. As a hydraulic equipment, the four-column hydraulic press has high requirements for the work welcome. Even a small dust-sized impurity in the system can cause the entire hydraulic system to stagnate. Therefore, we must ensure a good worki...

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What are the damages when the hydraulic press is overloaded?

The system pressure of the four-column hydraulic press is designed to be higher than the actual pressure, which not only increases the service life of the equipment, but also protects the hydraulic components from damage. As many people do not understand, it is easy to cause pressure overload on the four-column hydra...

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What are the precautions for buying a hydraulic press?

Those details should be paid attention to when buying a hydraulic press? 1. First of all, the appearance of the hydraulic press should be smooth and flat, and there should be no protrusions, depressions, rough surfaces and other damages that are not specified in the figure. The paint should be smooth and even, and t...

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What is trapped oil in a hydraulic machine? What are the effects of trapped oil in hydraulic machines?...

Oil trapping in a four-column hydraulic machine is a relatively common phenomenon. Oil trapping refers to the phenomenon that the pressure of the hydraulic machine changes drastically when the volume occupied by the oil is changed when the hydraulic machine is closed. This phenomenon will cause pressure shock and ca...

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How to solve the uneven oil supply of the four-column hydraulic gear pump during operation?...

One. Uneven oil supply caused by mechanical failure The four-column hydraulic press has been used for a long time, because the oil pump drive coupling is loose or the gap is too large, the backlash becomes larger, the drive gear is worn, and it will also affect the unevenness of the oil supply of each cylinder. I...

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What are the damages when the hydraulic press is overloaded?

When the working pressure of the four-column hydraulic machine is greater than 25MPa, we can control the working pressure of the four-column hydraulic machine through the electric contact pressure gauge or the system pressure regulating valve on the hydraulic system. The pressure overload of the four-column hydraul...

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Aluminum gusset market situation and development trend

Metal ceiling materials have been used in public buildings since the beginning of the 20th century. In the past two years, various aluminum gusset materials have begun to be selected as ceiling materials by room decoration on a large scale. 1. Aluminum gusset and PVC sheet have their own advantages. The PVC s...

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What are the technical requirements for the maintenance of the pressure control valve of a four-column hydraulic press?...

Technical requirements for the maintenance of the pressure control valve of the four-column hydraulic press ① Clean all the parts to be installed, especially the channels and orifices. ② Both ends of the spring must be ground flat to ensure that both ends are perpendicular to the center line....

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What are the ways to prevent rust in the hydraulic cylinder of a hydraulic press?...

The four-column hydraulic press is susceptible to corrosion and rust in places with humid air, such as at sea, under sea water or on the coast, so rust prevention measures must be taken. If the hydraulic cylinder is not rusty, the hydraulic cylinder of the four-column hydraulic press can be lead-plated....

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What is the reason for the loud sound of the hydraulic oil tank?

The flow pulsation noise of the four-column hydraulic press, the noise generated by the dead volume (trapped oil), the tooth profile accuracy (tooth profile error and gear pitch error, etc.) is not high, the noise is generated, the air enters and the noise is generated due to cavitation, and the bearing does not rotat...

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Why does the hydraulic pump of a fully automatic hydraulic press leak?

The part of the hydraulic pump of the fully automatic hydraulic press that constitutes the sealed working space must move relatively, so there is a cooperation gap. Because there is a pressure difference between the pump chamber and the booster chamber, the cooperation gap will inevitably leak, and the leak will affe...

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What is a hydraulic filter and reasons for using it

1. What is a hydraulic filter?   Hydraulic filter is a component of hydraulic system used to continuously remove contaminants in hydraulic oil. This process will purify the hydraulic oil and protect the system from damage caused by particulate matter. According to fluid compatibility, application type pressure dr...

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How to maintain a hydraulic press?

Hydraulic machine maintenance 1. The staff of the hydraulic press should have relative qualifications and must hold a certificate. Those who do not know the equipment are prohibited from starting and operating the hydraulic press. 2. Wear the required labor protection supplies before class....

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What causes the low operating speed of hydraulic cylinders?

The hydraulic cylinder of the four-column hydraulic machine runs at a low speed. What is the reason for the occurrence of this problem? Three points are listed: 1. The hydraulic cylinder of the four-column hydraulic press has low-speed creeping caused by the mixing of gas. In this situation, the intention of exhau...

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What should I do if the hydraulic press has problems with oil traps?

During the meshing process of the external gear pump, in order to make the four-column hydraulic gear pump run smoothly and continuously suck and press the oil, the coincidence degree of the gear 8 should be greater than 1, that is, before the first pair of gear teeth are disengaged, the latter pair The gear teeth ha...

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What are the maintenance contents of the four-column hydraulic press?

In the manufacturing process of the workpiece, the four-column hydraulic press has a high load rate and a large load capacity, so its safety equipment is very important. Then, the maintenance of the four-column hydraulic equipment is essential....

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What should I do if the hydraulic pump of a four-column hydraulic press can‘t boost pressure?...

First, clean the safety valve, check whether the valve core is worn, and replace it immediately if it is found to be worn. If there is no change after the safety valve is installed, we will check the wear of the control valve spool at this time. We recommend that the clearance use limit is generally 0.06mm, and shou...

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