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Lifting cylinder Sold to Denmark

Release time:2023-11-12 15:28:18 Hits: Current position: Home > News

This article mainly introduces:

Denmark hydraulic cylinder,Lifting cylinder manufacturer,Lifting cylinder

Denmark Lifting cylinder

(Denmark Lifting cylinder,produced by Hengyu Hydraulic Co., Ltd)

Lifting cylinder are widely used in Denmark,because of smooth movement,high work efficiency,excellent fatigue and impact resistance.So our company has designed Lifting cylinder for customers from Denmark.

Introduction to Lifting cylinder:

Factors that should be considered when selecting the oil seal in the Lifting cylinder: some specific factors should be taken into account when selecting the oil seal in the Lifting cylinder, so as to have correct consideration and get accurate results, and then avoid wrong selection. The factors and aspects that should be taken into account are eight: Lifting cylinder diameter, piston rod diameter, piston rod and piston groove size, Lifting cylinder working pressure, Lifting cylinder movement speed, hydraulic system oil temperature and Lifting cylinder working environment.

Lifting cylinder abnormal sound, hysteresis phenomenon cause and elimination method: the piston rod is extended with abnormal sound and hysteresis, if the Lifting cylinder is placed for a period of time, the Lifting cylinder may enter the air, and the movement can be normal after dozens of repeated movements. If it still cannot be eliminated, check whether the load is aligned with the axis of the piston rod; Retracted piston rod installation helps to align the load with the piston rod. If the flow is unstable, it will also lead to abnormal movement of the piston rod. Check the relevant components of the hydraulic system.

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

Before the Lifting cylinder is removed, the system should be unloaded, the loop pressure is zero, the oil source should be cut off, and the oil port should be blocked after the oil port distribution pipe is loosened.

Answers to some questions about Lifting cylinder:

What causes hydraulic cylinder oil leakage?
1. Internal leakage (1) The wear ring on the piston is seriously worn, leading to friction between the piston and the cylinder liner, and finally strain the cylinder liner, piston and seal; 2) Seal long-term use failure, piston seal (mostly U, V, Y ring, etc.) aging; 3) The hydraulic oil is dirty, and a large number of impurities enter the cylinder and wear the piston seal to bad; 2. External leakage 1) cylinder inlet and outlet tubing joint cracking; (This I see in the actual work is still more) 2) The piston rod extension end with the piston rod seal damage, mostly due to the piston cylinder is caused by hair, but also caused by aging; 3) The seal between the extended end of the piston rod and the liner is damaged.

What is the safety factor of 25MPa cylinder wall thickness?
Safety factor n can take 3 cylinder material allowable stress [s]=sb/n δ/D=0.08 ~ 0.3 cylinder wall thickness δ=PMAX*D/ (2.3[s]-3PMAX) δ/D≤0.08 cylinder wall thickness δ=PMAX*D/2[s] P < 16MPa, Pmax=1.5Pn; P > 16MPa, Pmax=1.25Pn cold-drawn tube or honing tube is better!

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