This article mainly introduces:

Saudi Arabia hydraulic cylinder,roller press hydraulic cylinder manufacturer,roller press hydraulic cylinder

(Saudi Arabia roller press hydraulic cylinder,produced by Hebei Hengyu company）

roller press hydraulic cylinder are widely used in Saudi Arabia，because of powerful torque，excellent temperature resistance，no transmission clearance.So our company has designed roller press hydraulic cylinder for customers from Saudi Arabia.

Introduction to roller press hydraulic cylinder:

When the roller press hydraulic cylinder is disassembled due to oil leakage and other faults, the position of the piston should be moved to any end position of the roller press hydraulic cylinder by applying liquid pressure. Improper tapping and sudden drop should be avoided during disassembly.

roller press hydraulic cylinder is the most important part of construction machinery, the traditional processing method is: broaching roller press hydraulic cylinder block - fine boring roller press hydraulic cylinder block - grinding roller press hydraulic cylinder block. The rolling method is: broaching roller press hydraulic cylinder block - fine boring roller press hydraulic cylinder block - rolling roller press hydraulic cylinder block, the process is 3 parts, but the time is compared: grinding 1 meter of the roller press hydraulic cylinder block is about 1-2 days, rolling 1 meter of the roller press hydraulic cylinder block is about 10-30 minutes. Input comparison: grinding machine or quilting machine (tens of thousands - millions), rolling knife (ten thousand - tens of thousands). After rolling, the surface roughness of the hole decreases from RA3.2-6.3 μm before rolling to Ra0.4 ~ 0.8μm, the surface hardness of the hole increases by about 30%, and the fatigue strength of the inner surface of the roller press hydraulic cylinder increases by 25%. If the roller press hydraulic cylinder life is only considered, it is increased by 2 to 3 times, and the boring and rolling process is 3 times more efficient than the grinding process In particular, if you want to make high-quality roller press hydraulic cylinders, you must take the rolling production process. After the roller press hydraulic cylinder is rolled, there is no sharp tiny edge on the surface, and long-term motion friction will not damage the seal ring or seal, which is particularly important in the hydraulic industry.

roller press hydraulic cylinder body inspection: The inner surface of the roller press hydraulic cylinder and the piston seal are the main factors causing the leakage in the roller press hydraulic cylinder, if the roller press hydraulic cylinder has a longitudinal tensile mark, even if the new piston seal is replaced, it can not effectively eliminate the fault, the inner surface of the roller press hydraulic cylinder mainly checks whether the dimensional tolerance and shape and position tolerance meet the technical requirements, there is no longitudinal tensile mark, and measures the depth of the longitudinal tensile mark, in order to take the corresponding solution.

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

Answers to some questions about roller press hydraulic cylinder:

What causes hydraulic cylinder oil leakage?
1. Internal leakage (1) The wear ring on the piston is seriously worn, leading to friction between the piston and the cylinder liner, and finally strain the cylinder liner, piston and seal; 2) Seal long-term use failure, piston seal (mostly U, V, Y ring, etc.) aging; 3) The hydraulic oil is dirty, and a large number of impurities enter the cylinder and wear the piston seal to bad; 2. External leakage 1) cylinder inlet and outlet tubing joint cracking; (This I see in the actual work is still more) 2) The piston rod extension end with the piston rod seal damage, mostly due to the piston cylinder is caused by hair, but also caused by aging; 3) The seal between the extended end of the piston rod and the liner is damaged.

How many tons can a 10mpa cylinder with a diameter of 100 hold up?
About 8 tons. Algorithm: Cylinder cross-sectional area = π* (100/2) ^2=3.14*2500=7850 square mm = 0.00785 square meters pressure = pressure * Cross-sectional area = 10000000Pa*0.00785 square meters = 78500 n mass = pressure /g = 78500 N ÷9.8 n/kg = 8010 kg = 8.01 Tons.