Parameters: the maximum temperature: 350 degrees maximum pressure: 4MPa maximum speed: 150rpm Applicable fluids: coolant, hot water, cold water, compressed gas, air, vacuum, and other structural characteristics: hydraulic rotary joint according to the working conditions to select the connection method. Within the independent pipeline needs to make choices, to maximize the benefits for different work. There are two precision bearings the internal at both ends of the rotary joint, smooth operation, durable and reliable, sturdy and flexible, the friction coefficient is small, so the high-speed operation. Generally, the hydraulic rotary joint is normally used for the conveyor device of the hydraulic medium to the above hydraulic actuator and other rotating equipment. The transmission media entrance at the same time according to the work of freedom to choose the side or the back-end to enter. Sealing surfaces and seals made of special materials, abrasion resistance, long life, corrosion-resistant, does not leak. The status of the internal seal wear may be the appearance of the product visually learned mechanical stop or mechanical damage can be prevented, and to achieve the effect of prevention and reduction of losses. The seals wear simple replacement repair, do not have to re-purchase of new, cost-saving.