Chemical rotary union

for airfor waterfor oil

Overview
For over a decade DSTI has supplied OEMs and operators with hydraulic rotary unions (swivel joints) designed for direct integration into compact OEM housings. These 5‑port units support multiple fluid circuits and continuous 360° rotation for equipment such as rotating platforms, cabs and attachments used in construction, agriculture and forestry.

Applications

• Tracked excavators
• Harvesters / feller bunchers
• Bucket trucks / aerial lifts
• Vibratory pile drivers
• Orange peel grapplers
• Excavator attachments (shears, pulverizers, forestry tools)

Features & Capabilities

• Multiple flow passages to handle several fluid types (hydraulic oil, coolant, heat‑transfer fluid, air, specialty fluids)
• Specialized dynamic seals optimized for rotating applications
• Corrosion‑resistant materials and plating options
• Wide selection of material choices to match OEM requirements
• Electrical slip ring options for simultaneous power and data transfer
• Engineered for harsh and abrasive operating environments
• Direct integration into existing hydraulic circuits and compact housings
• Suitable for extreme temperature variations

Technical Specifications

• Pressure rating: up to 7,500+ PSI (approx. 515 BAR)
• Designed for continuous 360° rotation and direct integration into rotating hydraulic systems
• Multiple flow passages available to support different fluids and independent circuits
• Corrosion‑resistant material and plating options for harsh environments
• Optional electrical slip rings for power and data transmission
• Typical applications: excavators, harvesters, pile drivers, grapplers and hydraulic attachments