This article mainly introduces:

Pakistan hydraulic cylinder,road paving machine hydraulic cylinder manufacturer,road paving machine hydraulic cylinder

(Pakistan road paving machine hydraulic cylinder,produced by Hengyu Hydraulic Cylinder Factory）

road paving machine hydraulic cylinder are widely used in Pakistan，because of smooth movement，high work efficiency，excellent fatigue and impact resistance.So our company has designed road paving machine hydraulic cylinder for customers from Pakistan.

Introduction to road paving machine hydraulic cylinder:

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

When installing the road paving machine hydraulic cylinder pipe, the pipe should be cleaned after installation, and should not pass through the road paving machine hydraulic cylinder block, and the by-pass pipe must be installed in front of the oil port of the road paving machine hydraulic cylinder block. This is important. Otherwise, the foreign body in the pipeline will enter the road paving machine hydraulic cylinder, and once it enters, it is difficult to exclude it, but it becomes a foreign body transported to the road paving machine hydraulic cylinder. Moreover, when cleaning, the removal method of foreign bodies entered in the installation pipeline operation should be considered. In addition, the corrosion in the pipe should be pickling and other procedures before the pipe installation, and the rust must be completely removed.

Before purchasing the road paving machine hydraulic cylinder, it is necessary to master the original information and design basis, mainly including: the use and working conditions of the machine; The structural characteristics, load conditions, stroke size and operation requirements of the working mechanism; The selected working pressure and flow of the hydraulic system; The reality of materials, fittings and processes; Relevant national standards and technical specifications, etc.

In the process of using the road paving machine hydraulic cylinder, sometimes such a problem will occur, the road paving machine hydraulic cylinder can not act immediately after the instruction of the road paving machine hydraulic cylinder action is issued, and it must be moved after a short time, or sometimes it can move and stop moving, showing that the operation is very irregular. The cause and elimination of this failure mainly include air in the oil road paving machine hydraulic cylinder. Elimination method: exhaust through the exhaust valve. Check the piston rod reciprocating parts of the sealing ring for air inhalation, if so, replace the sealing ring.

Answers to some questions about road paving machine hydraulic cylinder:

How to use a solenoid valve to control the expansion of a cylinder? Doesn't the solenoid valve only control on/off?
Use the solenoid valve P into A-B (generally equipped with oil circuit board) to connect the oil inlet interface at both ends of the cylinder, and the solenoid valve can be realized by power off (refer to the solenoid valve 2B2L, different solenoid valve actions are different).

What are the requirements for hydraulic cylinder assembly? ① The installation of the cylinder should be solid and reliable. In order to prevent the influence of thermal expansion, in the case of large stroke and hot working conditions, one end of the cylinder must be kept floating.② pipe connection shall not be relaxed.③ The mounting surface of the hydraulic cylinder and the sliding surface of the piston rod should maintain sufficient parallelism and perpendicality.④ The central axis of the moving cylinder should be concentric with the center line of the load force, otherwise it will cause lateral force, which is easy to wear the seal And piston damage. The greater the distance between the supporting points of the piston rod, the smaller its wear. For the hydraulic cylinder of the moving object, the installation should keep the cylinder parallel with the moving object, and the degree of non-parallelism is generally not greater than 0.05mm/m. ⑤The sealing ring should not be installed too tightly, especially the U-shaped sealing ring.