Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
1. The low starting pressure standard of the hydraulic cylinder is the working pressure under the condition of no load of the hydraulic cylinder, which can reflect the comprehensive index of the manufacturing and assembly precision of the hydraulic cylinder parts as well as the sealing friction.
2. When the hydraulic cylinder moves at full load, there is no crawling phenomenon and low stable speed. There is no uniform index for low stable speed, and hydraulic cylinders undertaking different work have different requirements for stable speed.
3, external leakage of hydraulic oil cylinder is also a very important indicator, since the external leakage is an important indicator of the internal leakage also must be a indicator, when the hydraulic oil cylinder leaks will reduce the volumetric efficiency, increase the oil to heat up, affecting the precision of the hydraulic oil cylinder, the hydraulic oil cylinder will not be able to accurate and stable in a certain position.
4. When the hydraulic cylinder is stretched out, it is necessary to check whether there are surface problems such as scratch, pull and welding slag, which are also one of the use indicators of the hydraulic cylinder to prevent the seal damage of the hydraulic cylinder caused by long-term use.
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