RT-GY Series — Rotary Joint for Hydraulic Applications
Multi-passage hydraulic power transmission up to 100 MPa
Overview
The RT-GY series is a hydraulic rotary joint built to transmit hydraulic oil or compressed air from a stationary line into rotating equipment — the heart of any machine that must swing, coil or index while holding hydraulic pressure. Typical homes: center swivel joints on construction machinery, sheet metal coilers/uncoilers and CNC hydraulic chucks.
Its defining feature is multi-passage independence: several circuits pass through one rotating interface, each fully isolated — hydraulic oil on one path, compressed air or coolant on another. Rated up to 100 MPa (35 MPa in standard compact executions) at speeds to 200 rpm and media temperatures to 80 °C, placing it among the highest-pressure families in the Ruitus range.
Because every machine swings differently, RT-GY units are engineered to your drawing: passage count, port size, mounting envelope and sealing materials are all specified to the application. To size one, send the schematic or connection dimensions, media, working pressure, speed and swing angle; for retrofits, a nameplate photo lets us confirm interchangeability within 24 hours.
Custom-built units are quoted individually — expect pricing well below imported equivalents, with standard spare parts shipping in 3–15 days (MOQ 1 unit) and custom builds scheduled per the quotation. Manufactured under ISO 9001:2015 in our 10,000 m² plant and running on excavators, cranes and rolling lines in 70+ countries.
Images & Dimension Drawings
Key Features
- Multi-passage independent operation
- Withstands up to 100 MPa pressure
- Suitable for construction machinery and CNC
- Supplies hydraulic power to rotating actuators
Typical Applications
Operating Conditions
| Media | Coolant, hot water, cold water, oil, compressed air |
|---|---|
| Max Pressure | 100 MPa |
| Max Temperature | 80°C |
| Speed Range | Up to 200 rpm |
Frequently Asked Questions
1 What pressure can the RT-GY hydraulic rotary joint withstand?
2 Can the RT-GY be built with multiple independent passages?
3 What information is needed to quote a custom RT-GY swivel?
4 What are the lead time and minimum order for RT-GY?
Send Us Your Drawing or Duty Conditions
Tell us the medium, temperature, pressure, speed and connection size. Our engineers reply with a selection or a custom proposal — usually within one working day.