High pressure cleaning machine direct hydraulic oil rotary joint

The direct hydraulic oil rotary joint of the high-pressure cleaning machine is a rotary sealing device designed specifically for high-pressure hydraulic systems, mainly used for transmitting hydraulic oil media.

core advantage
High voltage tolerance:
The working pressure can reach 35MPa, meeting the extreme working environment requirements of high-pressure cleaning machines
Adopting a balanced mechanical seal design to achieve pressure balance and ensure stable operation under high pressure
Excellent sealing performance:
Equipped with imported seals (graphite ring/silicon carbide mirror ring)
Multi stage O-ring combination structure effectively reduces sealing surface wear
Oil film sealing technology extends service life
High speed rotation stability:
The maximum speed reaches 8000rpm
Precision bearing support system ensures smooth high-speed operation
Structural design advantages:
Stainless steel shell, strong corrosion resistance
Split structure design for easy maintenance and replacement
The shell is equipped with oil injection nozzles and observation holes to support bearing lubrication and leakage monitoring
Application Scenario:
Hydraulic driven rotary cleaner: In large storage tanks, reactors, or cabins, a hydraulic motor-driven 360 ° rotary nozzle (such as the Keliying HP1000) is used. Its rotation center requires a hydraulic oil rotary joint to supply power oil (non cleaning water) for automatic rotary spraying. At this time, the joint needs to withstand high pressure (usually 200-350 bar), seal hydraulic oil, and support continuous rotation.
Engineering machinery/specialized cleaning equipment: such as track type or vehicle mounted high-pressure cleaning systems integrated with hydraulic rotary platforms, hydraulic oil rotary joints are used to supply oil to the hydraulic cylinders/motors of the rotating arm or pitch mechanism, and cleaning nozzles are supplied with water by a water pump (independent of the hydraulic system), with different media and joint types. ‌‌
Pay attention to distinguishing the medium: The nozzle end of the high-pressure cleaning machine is usually filled with water or cleaning solution (pressure up to 1000 bar), and a high-pressure rotary joint (stainless steel, ceramic seal) is used for water; If the joint is labeled as “hydraulic oil”, it is dedicated to the transmission hydraulic circuit and cannot be used for water delivery, otherwise the seal (such as NBR or fluororubber) will fail due to hydrolysis or erosion. ‌‌
Typical scenarios: Automatic oil tank cleaning machine, tunnel boring machine flushing system, ship deck hydraulic rotary spray cleaning rack – in these devices, the hydraulic oil rotary joint only exists in the hydraulic oil supply path of the rotating power unit, rather than the cleaning fluid path.