This article mainly introduces:

Saudi Arabia hydraulic cylinder,pushing cylinder manufacturer,pushing cylinder

(Saudi Arabia pushing cylinder,produced by Hengyu Hydraulic Co., Ltd）

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

Introduction to pushing cylinder:

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

At the rated pressure, the thrust of the pushing cylinder is determined by what factors: at the rated pressure of the oil pump, the work done by the pushing cylinder is related to the diameter of the pushing cylinder, but not to the stroke of the pushing cylinder. Moreover, the larger the pushing cylinder diameter, the larger the area, and the greater the pressure obtained. To this point, we should have a correct understanding and clear understanding, so as to avoid problems in the use of the pushing cylinder.

After the pushing cylinder is installed, lubricating grease should be added to the relative moving parts such as earring and middle hinge shaft before trial operation.

pushing cylinder hydraulic oil selection: The recommended working oil viscosity of the pushing 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.

Answers to some questions about pushing cylinder:

How to distinguish the bucket cylinder from the bucket rod cylinder?
It can be distinguished according to its installation and connection: one end of the bucket cylinder is connected with the bucket; The rod cylinder is not connected to the bucket. The bucket refers to the bucket installed on the excavator. According to the working mode, it is divided into backhoe bucket and shovel bucket, the backhoe bucket is commonly used. The boom and bucket rod are working device of the excavator, usually called the big arm and the forearm, which are mainly used to control the digging and loading of the bucket. The arm connected to the frame is longer, so it is commonly known as the big arm, and its term is called the boom. The arms connected to the digging bucket are smaller, so they are commonly known as the lower arms, and the term is called the bucket rod, so they are commonly known as the big lower arms.

Why is the hydraulic cylinder of the larger excavator arm upside down?
The weight of the excavating arm of a large excavator will be very heavy, and an oil cylinder has two cavities, one is a rod cavity, and the other is a rodless cavity. The lifting force of the excavator is the product of the ortho-projection area of the piston rod cavity by the oil pressure, so the strength of the rodless cavity is much greater than that of the rod cavity. And the parallel bars with the piston rod facing down are also conducive to assembly and future maintenance. So a large excavator has to keep the cylinder facing down.