When the slider down quickly, because the negative pressure chamber of the master cylinder and the suction opening of the main valve filling valve, filling a large amount of oil hydraulic cylinder upper chamber flows into the master cylinder to the slider can smoothly express down . When the pressure relief, control of oil into the first control valve to control piston against the spring force, pushing unloading spool down, the high pressure oil chamber of the master cylinder on the valve is turned on by unloading and filling tube, to unload purpose pressure. In the upper part has an elongated cylinder filling oil standard, to observe the oil level. Filled cylinder prostrate overflow pipe, the volume of liquid-filled tube is divided into two parts: the lower part of the oil is used for the slider down quickly, it is time to accommodate the upper volume slider return, the master cylinder chamber discharge of oil . In the lower side of the filling tube, provided with a valve, for periodic replacement of oil. Power sector by the tank. High pressure pumps, electric motors, integrated valve blocks and other components. It is the generation and distribution of working oil, so that the host can complete the scheduled action mechanism. Master cylinder double-acting piston cylinders, Bottom of back monolithic structure, built with the piston in the cylinder head, the piston head of the outer ring, mounted prescribe up, a down hole Yx-ring and cylinder wall sealing; the inner ring and the piston rod of the piston head seal by two O-rings to achieve, so that the formation of the upper and lower cylinder oil chamber. In brim fitted with guide sleeve to ensure a good performance when the piston guide. The guide sleeve is equipped with a shaft hole Yx-ring, the outer coat of the guide sleeve ends and two O-rings to ensure sealing performance of the brim portion. Brim end use removable snap ring connection, fitted at the ends of the dust seal to prevent contaminants from entering the fuel tank, clean the oil. Filling valve mounted on the main cylinder Bottom, with screw connection, by the O-ring seal. In the end face of the cylinder fitted with liquid-filled tube, solid connection with bolts and sealed with oil resistant rubber ring. [Company Name] Tengzhou Lung Machine Co., Ltd. [sales manager] Mr. Sun [Sales Hotline 0632-5878718] [Business Phone] 15165871095 [Main product] hydraulic machine hydraulic machine, three beam hydraulic machine, hydraulic machine, four-post three beam hydraulic machine , single-arm hydraulic machine, single-column hydraulic press, single-column hydraulic machine, hydraulic machines, single-arm hydraulic machine [company website] http://www.yx-yyj.com/ http://www.yeyaji5.com/ http: // www. szh-yyj.com/ http://www.db-yyj.com/ http://www.ln-yyj.com/ http://www.shukongxichuang6.com/ [Address] Tengzhou Zone Industrial Park South area