This article mainly introduces:

Ethiopia hydraulic cylinder,lifter hydraulic cylinder manufacturer,lifter hydraulic cylinder

(Ethiopia lifter hydraulic cylinder,produced by Hebei Hengyu company）

lifter hydraulic cylinder are widely used in Ethiopia，because of clever hydraulic energy conversion，simple structure and reliable operation，excellent temperature resistance.So our company has designed lifter hydraulic cylinder for customers from Ethiopia.

Introduction to lifter hydraulic cylinder:

Repair method of small range wear of oil lifter hydraulic cylinder: 1. Use oxygen-acetylene flame to bake the scratched part (master the temperature, avoid surface annealing), bake the oil on the metal surface all the year round until no sparks splash; 2. The scratched part is treated with an Angle grinder, the grinding depth is more than 1 mm, and the groove is polished along the guide rail, preferably a dovetail groove. Scratch both ends of the drilling deeper, change the force situation; 3. Clean the surface with absorbent cotton dipped in acetone or anhydrous ethanol.

The lifter hydraulic cylinder is mainly composed of body, piston, piston rod, lifter hydraulic cylinder head, lifter hydraulic cylinder bottom, piston rod head and related auxiliary devices. The piston divides the lifter hydraulic cylinder into two chambers, and moves reciprocally in the lifter hydraulic cylinder with the help of pressure oil. In order to improve its working effect, there is no sealing ring on the piston to eliminate internal leakage, where the piston rod passes through the lifter hydraulic cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the lifter hydraulic cylinder through the gap, so the sealing device and dust prevention reason are set. At the same time, in order to eliminate the influence of eccentric load on the work of the piston, all the lifter hydraulic cylinders must be provided with a considerable length of guide sleeve at the extended end of the piston rod. In addition, in the case of faster piston movement, the phenomenon of mechanical collision between the piston and the lifter hydraulic cylinder bottom and the lifter hydraulic cylinder head is serious, so the buffer deceleration should be set at both ends of the lifter hydraulic cylinder The working medium of the lifter hydraulic cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; lifter hydraulic cylinder sealing device: The use of Yx sealing ring, polyurethane (PU) and polytetrafluoroethylene (PTFE) materials combined to achieve a good sealing effect; Buffer mechanism of the lifter hydraulic cylinder: The buffer structure of the lifter hydraulic cylinder is to prevent the piston from colliding with the lifter hydraulic cylinder head at the end of the stroke.

Regular maintenance of the lifter hydraulic cylinder includes: regular tightening, lifter hydraulic cylinder fastening screws and gland screws, lifter hydraulic cylinder piston rod stop adjustment screws, should be tightened once a month, tighten each screw evenly, and achieve the corresponding tightening torque. Replace the seal regularly, it is recommended to replace the seal of the lifter hydraulic cylinder once a year. Clean regularly, the lifter hydraulic cylinder is cleaned every other year, and the seals are replaced while cleaning.

If it is found that the lifter hydraulic cylinder lubrication is poor or the lifter hydraulic cylinder bore processing is abnormal, it is necessary to feedback the situation to the manufacturer, because the piston and the lifter hydraulic cylinder, the guide rail and the piston rod have relative movement, if the lubrication is poor or the lifter hydraulic cylinder bore is abnormal, it will aggravate the wear and reduce the straightness of the lifter hydraulic cylinder center line. In this way, when the piston works in the lifter hydraulic cylinder, the friction resistance will be large and small, resulting in slip or crawling. The solution is to repair and grind the lifter hydraulic cylinder first, and then prepare the piston according to the matching requirements, repair and grind the piston rod, and configure the guide sleeve.

Answers to some questions about lifter hydraulic cylinder:

How to distinguish cylinder rod head and cylinder bottom?
One end of the piston rod can be telescopic is the rod head, and the one behind is the bottom of the cylinder, which is the single rod cylinder.

Is there a national standard for the testing of hydraulic cylinders?
Generally speaking, the cylinder test is carried out according to JB/JQ20302 Allowable leakage of cylinder in pre-factory leakage test. GB2879 hydraulic cylinder piston and piston rod dynamic seal groove type, size and tolerance. GB6578 hydraulic cylinder piston rod dust ring groove type, size and tolerance. GB7938 hydraulic cylinder and cylinder nominal pressure series, etc.