This article mainly introduces:

Angola hydraulic cylinder,stacker cylinder manufacturer,stacker cylinder

(Angola stacker cylinder,produced by Hebei Hengyu company）

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

Introduction to stacker cylinder:

The meaning of the stacker cylinder model marked by the stacker cylinder manufacturer: for example, 160/100-1150, its meaning: from a professional point of view, 160 refers to the stacker cylinder diameter, which is 160mm, and the 100 behind refers to the rod diameter, which is 100mm. The 1150 refers to the stacker cylinder stroke, which is 1150mm. Therefore, on this point, we should have a correct understanding and can not make mistakes.

The material of the sliding part of the stacker cylinder piston sintered casting piston will cause sintering phenomenon when subjected to large transverse load. In this case, the sliding part of the piston should be made of copper alloy or welded to such material.

stacker cylinder hydraulic oil selection: The recommended working oil viscosity of the stacker cylinder is 10 ~ 110cSt (1.8 ~ 15E), ISO VG46 hydraulic oil. The normal working oil temperature is 10 ~ 70℃, and the ambient temperature is in the range of -20 ~ 80℃. When the ambient temperature and service temperature are low, the hydraulic oil with lower viscosity can be selected.

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

Answers to some questions about stacker cylinder:

The diameter of the cylinder is 180mm and the pressure is 14mpa. How many tons can the cylinder hold?
Calculate the area of the cylinder, 3.14*9*9=254.34 square centimeters, take the approximate number of engineering, 1 mpa pressure is about 10 kg per square centimeter, 14 mpa pressure is 140 kg per square centimeter, that is 254.34*140=35607.6 kilograms, it can be known that the cylinder can be about 35 tons in theory.

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.