Hydraulic cylinder of shearing machine

How long can the hydraulic cylinder of the shearing machine be replaced, how to exhaust it, and how to disassemble the hydraulic cylinder of the shearing machine? Our factory is a professional manufacturer of hydraulic cylinders for shearing machines, and also processes intermediate pin shaft oil cylinders, electric hydraulic cylinders, wood splitting machine oil cylinders, hollow plunger oil cylinders, and crane boom hydraulic cylinders. In response to the questions raised by you, our factory will explain them from this article.

Article Introduction:

• Basic Introduction
• Terminology Comparison
• Manufacturer Introduction
• reference price
• Maintenance and related issues

Basic introduction of hydraulic cylinder for shearing machine

Hydraulic cylinder of shearing machine: Reasons and countermeasures for leakage inside the oil cylinder: Cast iron ring sealing allows for a certain degree of internal leakage. Impurities in the hydraulic cylinder can cause premature wear of the piston seal. Replace the piston seal; If obvious scars are visible on the cylinder barrel, it must be replaced. Apply pressure to one end of the hydraulic cylinder and open the oil port at the other end to observe for any obvious internal leakage. The majority of hydraulic cylinder piston drift reasons may not necessarily originate from the hydraulic cylinder. Using the above method to determine that there is no internal leakage in the hydraulic cylinder can help identify problems with the relevant components of the hydraulic system. What factors determine the thrust of a hydraulic cylinder at rated pressure? The work done by a hydraulic cylinder at the rated pressure of an oil pump is related to the diameter of the cylinder and not to its stroke. Moreover, the larger the diameter of the oil cylinder, the larger the area, and the greater the pressure it receives. Everyone should have a correct and clear understanding of this to avoid problems with hydraulic cylinders during use. The quality of the oil cylinder barrel cannot be ignored when purchasing oil cylinders. As the main component of oil cylinders, mining unit supports, hydraulic supports, cannon barrels and other products, the quality of their processing directly affects the life and reliability of the entire product. The processing requirements for the cylinder barrel are high, with an inner surface roughness requirement of Ra0.4-0.8 μ m, and strict requirements for coaxiality and wear resistance. The basic characteristic of cylinder barrel is deep hole machining, which has always troubled machining personnel. Attention should be paid when using the oil cylinder: During operation, it should be kept away from the oil cylinder as much as possible to avoid falling objects, knocking, and scratching the coating of the oil cylinder. When cleaning the oil cylinder, only soft materials (such as cotton cloth) can be used for wiping, and high hardness materials are prohibited from scratching. Do not use hydraulic cylinders when the oil temperature exceeds 70 ℃. Material selection and technical requirements for oil cylinder piston rod: Firstly, since there are no special requirements, 45 steel is selected as the material for the piston rod. In this design, the piston rod only bears compressive stress, so there is no need for modulation treatment; 2. The coaxiality tolerance of the shaft neck and outer circle of the piston during installation shall not exceed 0.01mm, ensuring the coaxiality of the outer circle of the piston rod and the outer circle of the piston, and avoiding the phenomenon of jamming between the piston and the cylinder, piston rod, and guide. The perpendicularity tolerance between the end face of the installation piston and the axis of the piston rod shall not exceed 0.04mm/100mm, ensuring that the installation of the piston does not produce any tilting; 3. Attention should be paid to the roughness of the outer circle of the piston rod; 4. As it operates under low load conditions, surface treatment is omitted.

Terminology comparison of hydraulic cylinder for shearing machine

Terminology related to hydraulic cylinder of shearing machine in Chinese and English

• 泄油管路 drain line
• Swing hydraulic press, swing hydraulic motor, swing cylinder: Limited rotary hydraulic motor
• Jog jog
• 复现性 reproducibility
• Flange Globe Valves
• Working Line
• 活塞杆腔、活塞杆侧： Rod end of cylinder
• 3、 Hydraulic installation engineering

Introduction to hydraulic cylinder manufacturer of shearing machine

Our factory specializes in customizing hydraulic cylinders for shearing machines, as well as designing flat jaw hydraulic cylinders, heavy-duty flat hydraulic cylinders, lifting ear hydraulic cylinders, crusher hydraulic cylinders, and heavy-duty hydraulic cylinders. After more than 20 years of hard work, our company has established long-term cooperative relationships with manufacturers such as sun drying paper factories, fuzzing, plush, velvet blankets, camel hair factories, potassium fertilizer factories, bitter acid factories, paper umbrella factories, and flocking process factories.

Reference price for hydraulic cylinder of shearing machine

The factory price of hydraulic cylinders for shearing machines is determined by factors such as usage environment, technical requirements, stroke range, and operating speed. The cost varies depending on whether synchronization is required. The cost of hydraulic cylinders for common brands of shearing machines ranges from 1000/yuan to 4000/yuan.

Maintenance and related issues of hydraulic cylinder for shearing machine

• Why does a hydraulic cylinder have such a strong force?
  The difference between the piston area of the pump and the piston area of the hydraulic cylinder is that if the piston area of the pump is small and the piston area of the cylinder is large, the force output from the piston rod of the cylinder to the outside is large, and vice versa
• How to distinguish between hydraulic cylinder high pressure cylinder and low pressure cylinder
  There is no special definition for oil cylinders, right? The so-called pressure classification refers to the pump low-pressure (code L) container with a pressure range of 0.1 MPa ≤ p ＜ 1.6 MPa; Medium pressure (code M) container 1.6 MPa ≤ p ＜ 10.0 MPa; High pressure (code H) container 10 MPa ≤ p ＜ 100 MPa; Ultra high pressure (code U) container p ≥ 100MPa. (1MPa=9.8Kg)
• How to deal with hydraulic cylinder oil leakage
  There are several reasons and solutions for hydraulic cylinder oil leakage, including: (1) stuck valve core or blocked valve hole. When the flow valve or directional valve core is stuck or the valve hole is blocked, the hydraulic cylinder is prone to misoperation or malfunction. At this time, the contamination of the oil should be checked; Check if dirt or gum deposits are stuck in the valve core or blocking the valve hole; Check the wear of the valve body. (2) The piston rod is stuck with the cylinder or the hydraulic cylinder is blocked. At this point, no matter how you manipulate it, the hydraulic cylinder will not move or move very little. At this point, it is necessary to check whether the piston and piston rod seals are too tight, whether dirt and gum deposits have entered, whether the axis of the piston rod and cylinder barrel are aligned, and whether vulnerable parts and seals have failed. (3) Hydraulic system control
• What material and hydraulic system are used for oil cylinders at minus 40 degrees Celsius
  Jianyi uses 1Cr18Ni9Ti, which has good impact and tensile strength under low temperature conditions, can withstand low temperatures of -100 degrees, is corrosion-resistant, and the material price is not very high, making it relatively economical