This article mainly introduces:

Angola hydraulic cylinder,land leveller hydraulic cylinder manufacturer,land leveller hydraulic cylinder

(Angola land leveller hydraulic cylinder,produced by Hengyu Hydraulic Cylinder Factory）

land leveller hydraulic cylinder are widely used in Angola，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed land leveller hydraulic cylinder for customers from Angola.

Introduction to land leveller hydraulic cylinder:

When the land leveller hydraulic cylinder is in use, measures should be added to prevent the intrusion of pollutants. Effective measures should be taken to control the intrusion of pollutants, such as installing high-efficiency air filters in the tank breathing holes, new oil must be filtered, etc., but also must improve the anti-pollution ability of the land leveller hydraulic cylinder itself. In the seriously polluted environment, it is more important to pay attention to, such as the underground oil land leveller hydraulic cylinder should use fluorine rubber (FRM) and nitrile rubber (NBR) dust ring, and the ground mechanical land leveller hydraulic cylinder should use nitrile rubber dust ring; The filter device is added to the oil inlet of the land leveller hydraulic cylinder of the dump truck, construction machinery, work platform and other equipment, and in order to reduce the oil inlet resistance, the flow area should be increased as much as possible, which can effectively reduce the particle pollution from the system.

The land leveller hydraulic cylinder body is commonly made of No. 20, 35, 45 seamless steel pipe, and the steel pipe is honed or rolled to achieve the roughness requirement within 0.4μm. The low pressure land leveller hydraulic cylinder can use 20 steel pipe, and the high pressure land leveller hydraulic cylinder can use 45 steel pipe.

When installing the land leveller hydraulic cylinder, the axial ends of the land leveller hydraulic cylinder cannot be fixed. Due to the effect of liquid pressure and thermal expansion in the land leveller hydraulic cylinder, there is axial expansion. If the two ends of the land leveller hydraulic cylinder are fixed, all parts of the land leveller hydraulic cylinder will be deformed. When disassembling the land leveller hydraulic cylinder, it is strictly forbidden to hammer the land leveller hydraulic cylinder and the piston surface, such as the land leveller hydraulic cylinder hole and the piston surface is damaged, do not allow sandpaper grinding, to use a fine oil stone carefully grinding. The clearance between the guide sleeve and the piston rod should meet the requirements.

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

Answers to some questions about land leveller hydraulic cylinder:

In a hydraulic system, a hydraulic pump has many hydraulic cylinders and hydraulic motors, and these executive components do not coordinate their actions with each other.
A load-sensitive variable pump can be used if these components sometimes need to work simultaneously and the power required is large. The required flow is distributed by the multi-way reversing valve, and the required flow and pressure changes are automatically adjusted by the hydraulic pump. Pressure reducing valves can be used for particularly low pressure circuits. Because you execute more components, the use of quantitative pump will cause a waste of energy, the system heat is large, not suitable.

How to calculate the hydraulic cylinder pressure, how much pressure can put up how much weight?
There is a formula for air pressure, hydraulic pressure, water pressure: F=P×S type: f-cylinder or hydraulic cylinder output, unit is Newton (N) P- pressure, unit is Mpa S- effective area, unit is square millimeter (mm2), note: is the effective area, in the hydraulic cylinder to subtract the cross-sectional area of the piston rod.