This article mainly introduces:

Nepal hydraulic cylinder,lifting column cylinder manufacturer,lifting column cylinder

(Nepal lifting column cylinder,produced by Hengyu Hydraulic Cylinder Factory）

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

Introduction to lifting column cylinder:

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

The definition of the minimum stable speed refers to the minimum movement speed of the lifting column cylinder without crawling phenomenon when the full load is moving, it has no uniform indicator, and the lifting column cylinder that undertakes different work has different requirements for the minimum stable speed.

The commonly used buffer structure of the lifting column cylinder is composed of a piston boss and a lifting column cylinder head groove. When the piston moves close to the lifting column cylinder head, it gradually enters the groove, and the oil in the groove is extruded through the gap between the boss and the groove, which increases the oil return resistance, produces the braking effect and realizes the buffer. Generally, a buffer mechanism should be used when the pressure is above 10MP.

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

To achieve the same stroke, which is better, hydraulic cylinder or lead screw?
If there is batch action, then the hydraulic pressure is better. Hydraulic: smooth operation, no lubrication, easy control, high control accuracy (can use proportional or servo system), the key is to manually control, but certainly to support the hydraulic system, for a single action must cost. Maintenance costs are also high. Lead screw: simple structure, easy to achieve, convenient maintenance, but must be lubricated, can not be manual, or manual control is inconvenient. See where it is used, if it is used in high-precision occasions, it must only be hydraulic, because the lead screw has a gap. There are many hydraulic actions, the hydraulic system itself must be prepared, then the use of hydraulic pressure is also very economical.

How does the cylinder of the shearing machine work?
Plate shear is a machine that cuts a sheet with a reciprocating straight motion from one blade to another. Through the moving upper blade and the fixed lower blade, the shear force is applied to the metal sheet of various thicknesses with a reasonable blade gap, so that the sheet is broken and separated according to the required size. Shearing machine belongs to one of the forging machinery, the main role is the metal processing industry. Products are widely used in aviation, light industry, metallurgy, chemical industry, construction, shipbuilding, automobile, electric power, electrical appliances, decoration and other industries to provide the required special machinery and complete sets of equipment. Working principle: The hydraulic system is used to drive the hydraulic cylinder to output a strong shear force to complete the shearing work.