DSTI's success in providing fluid transfer solutions is based on a wide range of proven experience with rotary sealing technology, continual design innovation, and a priority for constant communication with its customers to ensure their project's success.

Designed for high speed and rugged-duty service, DSTI's rotating hydraulic unions / cylinders deliver increased performance - reducing system downtime.

Rotating Cylinders For Coil Processing

Hydraulic Rotary Cylinder Solutions for Expanding Mandrel Applications

DSTI's heavy-duty hydraulic rotary union / cylinder products provide reliable solutions for expanding mandrel tension reels and grippers used in coil processing applications.


DSTI's rotating cylinders expand and collapse uncoilers / recoilers used in processing lines for hot and cold rolling operations including Slitting Lines, Cut-to-Length, Cross Cutting, Roll Forming, Galvanizing Lines, and Pickling Lines.



Hydraulic Rotary Unions / Cylinders for Coil Processing

DSTI provides complete rotary cylinder solutions including fluid rotary unions (joints), hydraulic cylinder assemblies, and electronic feedback devices (positioning sensors).



Hydraulic Rotary Union / Cylinder Features

  • High Speed Designs (1,000+ RPM)
  • High Pressure Capability (5,000+ PSI)
  • Specialized Dynamic Sealing System (Engineered for High RPM)
  • Designs for Corrosion Resistance
  • Wide Range of Bore Sizes & Mounting (Flange) Options
  • Sealing System Designed for Hydraulic Fluid Compatibility
  • Pneumatic Designs Also Available
  • Specialized Designs for Direct Integration into Customer Equipment


For more information on hydraulic & pneumatic rotating union / cylinder solutions, please Contact DSTI



{ See Also Metal Production }



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