This article mainly introduces:

Canada hydraulic cylinder,unidirectional cylinder manufacturer,unidirectional cylinder

(Canada unidirectional cylinder,produced by Hebei Hengyu company）

unidirectional cylinder are widely used in Canada，because of powerful torque，clever hydraulic energy conversion，simple structure and reliable operation.So our company has designed unidirectional cylinder for customers from Canada.

Introduction to unidirectional cylinder:

Disassembly unidirectional cylinder: When disassembly unidirectional cylinder, strictly prevent damage to the screw thread at the top of the piston rod, the screw thread of the unidirectional cylinder head and the surface of the piston rod. It should also be noted that the piston cannot be played out from the unidirectional cylinder.

unidirectional cylinder is the most important part of construction machinery, the traditional processing method is: broaching unidirectional cylinder block - fine boring unidirectional cylinder block - grinding unidirectional cylinder block. The rolling method is: broaching unidirectional cylinder block - fine boring unidirectional cylinder block - rolling unidirectional cylinder block, the process is 3 parts, but the time is compared: grinding 1 meter of the unidirectional cylinder block is about 1-2 days, rolling 1 meter of the unidirectional 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 unidirectional cylinder increases by 25%. If the unidirectional 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 unidirectional cylinders, you must take the rolling production process. After the unidirectional 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.

Most of the failure of the unidirectional cylinder is because there is a foreign body in the unidirectional cylinder into the failure of the unidirectional cylinder, the most problematic is that it is difficult to determine when the foreign body is into the unidirectional cylinder. After a foreign body enters, if the outer side of the sliding surface of the piston is equipped with a seal with a lip edge, then the lip edge of the seal can scrape the foreign body when working, which is beneficial to avoid scratching. However, the piston equipped with 0-shaped sealing ring has a sliding surface at both ends, and foreign bodies are sandwiched between this sliding surface, which is easy to form scars.

When purchasing the unidirectional cylinder, try to clarify the following parameters of the unidirectional cylinder: A. unidirectional cylinder diameter, rod diameter, stroke; B. Working pressure or unidirectional cylinder load; C. Working environment temperature; D. Working medium; E. Operating speed; F. Other parameters, such as connection form, mounting size, etc. In this way, the right unidirectional cylinder type can be found accurately and quickly.

Answers to some questions about unidirectional cylinder:

Does the sealing string of the upper and lower chamber of the hydraulic cylinder fall by itself?
It is possible, the probability accounts for 85% (depending on the weight), the weight is less than the system resistance, may not fall, the weight is greater than the system resistance, will not necessarily fall, so often check the equipment, safety first, find the problem in time to solve, the cylinder is not very expensive parts, maintenance does not cost much money, However, accidents caused by cylinder failure will lose several times the cost.

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.