This article mainly introduces:

Bulgaria hydraulic cylinder,shearing machine cylinder manufacturer,shearing machine cylinder

(Bulgaria shearing machine cylinder,produced by Hebei Hengyu company）

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

Introduction to shearing machine cylinder:

The material of the sliding part of the shearing machine cylinder piston sintered casting piston will cause sintering phenomenon when subjected to large transverse load. In this case, the sliding part of the piston should be made of copper alloy or welded to such material.

The machining accuracy of the shearing machine cylinder depends on the level of equipment, production technology and testing means. shearing machine cylinder processing methods are commonly used in two ways, one is rough boring - fine boring - rolling, generally with 45# seamless steel pipe, this method of processing quality is good, but the cost is high. Another method is to use 20# cold-drawn seamless steel pipe, and then honing, the cost is lower. The piston rod must be adjusted and straightened before processing, and the coating thickness of the piston rod is generally not less than 0.03mm. The piston must be machined in strict accordance with the groove size and tolerance requirements given in the seal manual.

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

shearing machine cylinder piston sealing is best to use Yx ring, polyurethane and polytetrafluoroethylene sealing material combination, can significantly improve the sealing performance: (I), reduce friction resistance, no crawling phenomenon; (ii) Have good dynamic and static sealing, wear resistance, long service life; (iii) The installation groove is simple, and the disassembly is simple.

Answers to some questions about shearing machine cylinder:

What welding rod is used for hydraulic cylinder welding?
There are several reasons for bad welding of hydraulic cylinder: 1. There is hydraulic oil on the welding surface, wipe it with a rag, there will be bubbles in the welding process, and it will not last for a few days. You have to remove it, drain it, wash it off with gasoline and try again. 2. Open the groove before welding, it is not deep enough to use the Angle grinding machine, and can not find the accurate crack position. 3. The material of the cylinder itself is not clear, the welding performance of more than 35 steel is not good, in the factory welding needs to preheat, the welding rod should also be dried and insulated, there is no such condition on the site.

How to make 4 cylinders balance lifting weight at the same time?
The cost of the synchronous valve is lower, 4 cylinders need 3 synchronous valves, to be precise you can use a synchronous motor, but it is more expensive. There is another way, that is to install a throttle valve in each cylinder, respectively adjust the speed of the cylinder.