This article mainly introduces:

Spain hydraulic cylinder,tailboard balance cylinder manufacturer,tailboard balance cylinder

(Spain tailboard balance cylinder,produced by Hengyu Hydraulic Co., Ltd）

tailboard balance cylinder are widely used in Spain，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed tailboard balance cylinder for customers from Spain.

Introduction to tailboard balance cylinder:

The commonly used buffer structure of the tailboard balance cylinder is composed of a piston boss and a tailboard balance cylinder head groove. When the piston moves close to the tailboard balance cylinder head, it gradually enters the groove, and the oil in the groove is extruded through the gap between the boss and the groove, which increases the oil return resistance, produces the braking effect and realizes the buffer. Generally, a buffer mechanism should be used when the pressure is above 10MP.

The "O" ring can be used as an auxiliary seal inside the tailboard balance cylinder, and the elastic force of the "O" ring makes the sealing slip ring close to the sealing surface, generating sealing pressure to achieve sealing. When the internal hydraulic pressure increases, the "O" ring will further deform and squeeze the slip ring, thereby increasing the sealing pressure and improving the sealing performance. The structure has the characteristics of low friction coefficient, good wear resistance, automatic compensation for wear and absorption of hard particles in the tailboard balance cylinder, and can be completely sealed.

The wear of the hard chromium plating layer of the tailboard balance cylinder is mostly caused by the grinding of the friction iron powder of the piston, and the wear is faster when there is water in the middle. Corrosion caused by the contact potential difference of the metal only occurs in the part of the piston contact, and the corrosion occurs in a point pattern. As mentioned above, when there is moisture in the middle, it will promote the development of corrosion. Compared with castings, the contact potential difference of copper alloy is higher, so the corrosion degree of copper alloy is more serious.

The difference between the integral tailboard balance cylinder and the split tailboard balance cylinder: The integral tailboard balance cylinder and the split tailboard balance cylinder in the tailboard balance cylinder are two different tailboard balance cylinders, and they are very different. The whole tailboard balance cylinder, which is cast in one body, is not prone to problems such as oil leakage; The split tailboard balance cylinder is welded twice, so if it is not handled well at the welding, it is prone to problems such as oil leakage and tailboard balance cylinder damage. Therefore, it is obvious that the answer to this question is for difference.

Answers to some questions about tailboard balance cylinder:

Is there a national standard for the testing of hydraulic cylinders?
Generally speaking, the cylinder test is carried out according to JB/JQ20302 Allowable leakage of cylinder in pre-factory leakage test. GB2879 hydraulic cylinder piston and piston rod dynamic seal groove type, size and tolerance. GB6578 hydraulic cylinder piston rod dust ring groove type, size and tolerance. GB7938 hydraulic cylinder and cylinder nominal pressure series, etc.

Why is the hydraulic cylinder of the larger excavator arm upside down?
The weight of the excavating arm of a large excavator will be very heavy, and an oil cylinder has two cavities, one is a rod cavity, and the other is a rodless cavity. The lifting force of the excavator is the product of the ortho-projection area of the piston rod cavity by the oil pressure, so the strength of the rodless cavity is much greater than that of the rod cavity. And the parallel bars with the piston rod facing down are also conducive to assembly and future maintenance. So a large excavator has to keep the cylinder facing down.