This article mainly introduces:

El Salvador hydraulic cylinder,non-standard special type cylinder manufacturer,non-standard special type cylinder

(El Salvador non-standard special type cylinder,produced by Hengyu Hydraulic Cylinder Factory）

non-standard special type cylinder are widely used in El Salvador，because of high work efficiency，excellent fatigue and impact resistance，no need for deceleration device.So our company has designed non-standard special type cylinder for customers from El Salvador.

Introduction to non-standard special type cylinder:

Because of the slightly complex structure of the buffer non-standard special type cylinder, sometimes there will be problems, such as when the non-standard special type cylinder with the buffer device is started in reverse, the piston often stops temporarily or reverses. Elimination method: The orifice of the check valve is too small, so that the amount of oil entering the buffer chamber is too small, and even a vacuum occurs, so the above fault phenomenon will occur when the buffer plunger leaves the end cover. In this regard, the orifice of the check valve should be increased.

Under normal circumstances, the non-standard special type cylinder is composed of the rear end cover, body, piston, piston rod and front end cover and other main parts. In order to prevent the working medium from leaking out of the non-standard special type cylinder or from the high pressure chamber to the low pressure chamber, a sealing device (sealing ring) is arranged between the non-standard special type cylinder and the end cover, the piston and the piston rod, the piston and the non-standard special type cylinder, the piston rod and the front end cover. A dustproof device is also provided on the outside of the front end cover. In order to prevent the piston from impacting the end cap when it moves rapidly to the end of the stroke, the end of the non-standard special type cylinder can also be provided with a buffer device. If necessary, the exhaust device should be set in order to exhaust.

In the hydraulic system, sometimes the inner layer of the rubber hose is peeled off, so that the oil circuit is on and off, resulting in irregular non-standard special type cylinder action. Troubleshooting method: Replace the rubber hose.

If the non-standard special type cylinder is sliding or crawling (stop and go), check whether there is any astringency inside the non-standard special type cylinder. The internal parts of the non-standard special type 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 non-standard special type 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 non-standard special type 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 non-standard special type cylinder bore processing is out of whack. Because the piston and non-standard special type cylinder, guide rail and piston rod are relative If the non-standard special type 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 non-standard special type cylinder weight composition and calculation. The weight of the non-standard special type cylinder is composed of the non-standard special type cylinder diameter, the outer diameter and weight of the non-standard special type 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.

Answers to some questions about non-standard special type cylinder:

What material is the piston rod of the cylinder made of?
About the piston rod: ① Piston rods are usually made of 45# steel. When there is a large impact force and heavy load transmission, it is made of 40Cr steel. This is to ensure that the piston rod has sufficient working strength. ② The piston rod is generally designed as a cylinder, if the diameter is larger, the hollow piston rod can be used with 45# seamless steel pipe. ③ When the piston rod is manufactured, the blank should be first forged and conditioned after mechanical rough processing, and the hardness of HB=230 ~ 250. The purpose of conditioning is to improve the machining performance and increase the working strength of the material. ④ The surface roughness Ra of the piston rod after finishing should not be greater than 0.65μm. ⑤ In order to improve the corrosion resistance of the piston rod, the rod surface needs to be chrome plated.

How to calculate the tonnage of the hydraulic press? Example: The input cylinder pressure is 5Mpa, the end area of the cylinder piston is 100mm, and how much is the thrust tonnage?
F=P*S=5*10^6*3.14*(1/20)^2=39250N.