Water rotary union

for oilfor chemicalsfor compressed air

Overview
DSTI supplies hydraulic and pneumatic rotary unions and rotating cylinders engineered for expanding and collapsing uncoilers/recoilers in coil processing lines. Products are suitable for hot and cold rolling environments and for integration into slitting lines, cut-to-length systems, roll forming, galvanizing and pickling lines. DSTI offers standard in-stock units and custom-engineered solutions with options for electronic feedback devices and hydraulic cylinder assemblies for combined fluid and mechanical actuation.

Applications

• Expanding mandrels for uncoilers and recoilers
• Coiler mandrels for hot and cold rolling
• Pneumatic winding machine grippers and actuators

Technical Specifications

• High-speed capability: designs supporting 1,000+ RPM
• High-pressure rating: up to and beyond 5,000 PSI where specified
• Specialized dynamic sealing systems for rotating-cylinder service
• Engineered for direct integration into existing coil processing equipment

Additional Features

• Wide range of bore diameters and flange/mounting options
• Heavy-duty construction for industrial environments
• Sealing compatible with hydraulic, pneumatic, coolant and other media
• Options for position sensors and electrical slip ring integration

Technical characteristics

• Media compatibility: hydraulic, pneumatic, coolant and other media types
• Maximum design speed: supports high-speed operation (1,000+ RPM)
• Pressure capability: designed for high-pressure use (5,000+ PSI) when specified
• Sealing: dynamic sealing systems tailored to rotating-cylinder applications
• Bore & mounting: multiple bore sizes and flange configurations available
• Construction: robust materials and assembly for harsh industrial conditions
• Integration: optional hydraulic cylinder assemblies and electronic feedback (position) sensors; supports electrical slip ring integration for combined electrical and fluid transfer
• Product range: standard stock units and custom-engineered rotary unions and rotating cylinders for coil processing equipment