This article mainly introduces:

Dominica hydraulic cylinder,stern plate hydraulic cylinder manufacturer,stern plate hydraulic cylinder

(Dominica stern plate hydraulic cylinder,produced by Hengyu Hydraulic Co., Ltd）

stern plate hydraulic cylinder are widely used in Dominica，because of no need for deceleration device，long service life，smooth movement.So our company has designed stern plate hydraulic cylinder for customers from Dominica.

Introduction to stern plate hydraulic cylinder:

The quality of the stern plate hydraulic cylinder can not be ignored in the purchase of the stern plate hydraulic cylinder. The stern plate hydraulic cylinder is the main component of the stern plate hydraulic cylinder, the single pillar for mining, the hydraulic support, the gun tube and other products, and its processing quality directly affects the life and reliability of the entire product. stern plate hydraulic cylinder processing requirements are high, its internal surface roughness requirements are Ra0.4 ~ 0.8μm, the coaxiality, wear resistance requirements are strict. The basic feature of stern plate hydraulic cylinder is deep hole processing, which has always troubled the processing personnel.

The definition of the minimum starting pressure of the stern plate hydraulic cylinder refers to the minimum working pressure of the stern plate hydraulic cylinder in the no-load state, which is a comprehensive index reflecting the manufacturing and assembly accuracy of the stern plate hydraulic cylinder parts and the size of the sealing friction.

If the stern plate hydraulic cylinder is sliding or crawling (stop and go), check whether there is any astringency inside the stern plate hydraulic cylinder. The internal parts of the stern plate hydraulic cylinder are improperly assembled, the parts are deformed, worn or the shape and position tolerance is excessive, and the action resistance is too large, so that the piston speed of the stern plate hydraulic cylinder changes with the different stroke position, and there is slip or crawl. Most of the reasons are due to poor assembly quality of parts, surface scars or sintered iron filings, so that the resistance increases, the speed decreases. For example, the piston is different from the piston rod or the piston rod is bent, the stern plate hydraulic cylinder or the piston rod is offset from the mounting position of the guide rail, and the sealing ring is too tight or too loose. The solution is to repair or adjust, replace damaged parts and remove iron filings. At the same time, check whether the lubrication is good or whether the stern plate hydraulic cylinder bore processing is out of whack. Because the piston and stern plate hydraulic cylinder, guide rail and piston rod are relative If the stern plate hydraulic cylinder is crawling seriously, check whether air has entered the hydraulic system. Air compression or expansion can cause the piston to slip or crawl. The exclusion measures are to check the hydraulic pump, set up a special exhaust device, and quickly operate the exhaust several times in the full stroke. Check the seals at the same time, because the quality of the seals is directly related to slippage or crawling. When the O-ring is used under low pressure, compared with the U-ring, it is easy to slip or crawl because of the higher surface pressure and the larger difference between static and static friction resistance. The surface pressure of the U-shaped sealing ring increases with the increase of pressure, although the sealing effect is correspondingly improved, but the difference between static and static friction resistance is also larger, the internal pressure increases, affecting the rubber elasticity, due to the increase in the contact resistance of the lip, the sealing ring will tip over and the lip elongation, and it is also easy to cause slip or crawling stern plate hydraulic cylinder weight composition and calculation. The weight of the stern plate hydraulic cylinder is composed of the stern plate hydraulic cylinder diameter, the outer diameter and weight of the stern plate hydraulic cylinder, the rod diameter, and the weight of the accessories, so in calculation, it is to add all these together to get the specific value. However, if there are special circumstances, it may be calculated separately. This work can be carried out by yourself, but it can also be carried out by professionals, so that mistakes can be avoided.

In order to ensure the service life of the stern plate hydraulic cylinder, the medium used must not be mixed with impurities and stolen goods, so as to avoid scratching the inner arm of the stern plate hydraulic cylinder, causing damage to the seal and causing leakage in the stern plate hydraulic cylinder. It is required that the filtration accuracy of the system is not less than 80μm, the oil pollution is strictly controlled, the hydraulic oil is kept clean, the performance of the hydraulic oil is regularly checked, and the necessary fine filtration or replacement of the new working hydraulic oil is carried out.

Answers to some questions about stern plate hydraulic cylinder:

How to calculate the cross-sectional area of hydraulic cylinder?
Hydraulic cylinder cross section integral rod cavity and rodless cavity: rod cavity is cylinder inner wall cross-sectional area - piston rod cross-sectional area; The rodless cavity is the cross-sectional area of the inner wall of the cylinder. If the working pressure p and the output force F are known, the effective cross-sectional area A=F/p can be calculated.

What diameter cylinder is needed for a force of 5 tons?
It depends on the pressure of your system pump. If the normal working pressure of the system is about 8MPa, then the diameter of the cylinder should be 100 mm.