Industry Solutions Rotary Table & Workholding Systems
Reliable Fluid Sealing for Rotary Tables & Workholding Systems
High-Precision Fluid Control for Automated Clamping & Indexing
Rotary tables and workholding systems require precise, continuous fluid delivery. In high-cycle environments, the rotary union serves as a major control point; inconsistent hydraulic pressure risks parts moving and tooling damage, while pneumatic timing errors can stop production.
DSTI designs multi-passage rotary union solutions for continuous flow and position-specific fluid delivery. Steady flow designs deliver 360-degree rotation with high-precision hydraulic or pneumatic pressure, and crosstalk protection between independent passages. For specific positions, rotary timing valves mechanically port media based on table orientation, eliminating external control valving and reducing system complexity.
Every DSTI rotary union is manufactured, assembled, and quality-qualified in-house, meeting ISO 9001:2015 standards, with documented traceability.
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Continuous Flow Multi-Passage
Rotary Unions
Continuous-flow multi-passage rotary unions maintain uninterrupted hydraulic or pneumatic pressure across 360 degrees of rotation, with crosstalk protection between independent passages. They're the right choice for dual-acting clamping circuits and continuous system sensing where pressure consistency directly affects part quality and machine reliability.
Rotary Timing
Valve Solutions
Rotary timing valves are custom-engineered to deliver fluid only at specified rotational zones or indexing positions. Fluid is ported mechanically based on table orientation, removing the need for external control valving and the failure points that come with it.
Technical Parameters for
Machine Tool Environments
- Media Compatibility: DSTI rotary unions for workholding and indexing applications are compatible with hydraulic oil, high-pressure air, vacuum lines, and through-spindle coolant.
- Pressure and Speeds: Custom designs handle heavy-duty hydraulic clamping up to 6,500+ PSI and high-speed indexing tables up to 10,000+ RPM.
- Integrated Systems: Where the application requires more than fluid transfer, compact electrical slip rings integrate directly into the rotary union assembly to feed power and sensor signals to rotating smart fixtures.
Product Performance Lines for
Factory Automation
GP / GPS Series
Multi-passage configurations consolidate complex hydraulic and pneumatic clamping lines into a single rotating interface.
LT / SPS Series
Lightweight, compact designs built for space-restricted rotary index tables and pneumatic grippers.
DynaSeal Technology
Engineered for maximum cycle life, minimal breakout torque, and low friction under high-pressure clamping cycles.
Custom Engineering & Modification Capabilities Handling Challenges
- DSTI integrates directly into OEM equipment with custom bolt patterns, flange mountings, and shaft-mounted envelopes built to your interface requirements.
- Seal compounds are selected for compatibility with abrasive machining chips and synthetic coolants common in machine tool environments.
- In-house CNC precision machining and simulated design verification confirm part reliability before production begins.