2-Way 360° Pneumatic Rotary Joint – Dual-Channel GY2T G1/8–G3/4

2-Way 360° Pneumatic Rotary Joint – Dual-Channel Central Swivel Union

The GY2T 2-Way Pneumatic Rotary Joint is a precision-engineered dual-channel swivel union designed for continuous 360° rotation in demanding pneumatic and hydraulic systems. Whether you're building automated machinery, robotic arms, rotary tables, or any system requiring uninterrupted fluid or air flow through a rotating axis, this central rotary joint keeps everything running smoothly without hose tangling or pressure loss.

Available in six thread sizes — from compact G1/8A to heavy-duty G3/4A — this versatile joint is built to handle high-pressure applications up to 40 MPa, making it suitable for both light automation and heavy industrial use. Made in Mainland China.

Key Features

• Dual-Channel (2-Way) Design: Two independent flow passages allow simultaneous transmission of two separate fluid or air circuits through a single rotating joint.
• Full 360° Continuous Rotation: Enables unrestricted rotational movement — ideal for rotating platforms, conveyors, winding machines, and robotic arms.
• High Pressure Rated: Withstands up to ≤40 MPa, suitable for demanding hydraulic and pneumatic environments.
• Max Operating Speed: Rated up to 100 RPM for reliable performance at moderate rotational speeds.
• Temperature Resistance: Operates reliably up to 90°C, handling elevated working temperatures in industrial settings.
• Multiple Thread Size Options: Choose from six variants to match your system's port requirements.
• Model: GY2T

Thread Size Options

• A: 2-Way thread G1/8A — 1 point (compact systems)
• B: 2-Way thread G1/4A — 2 points (standard light duty)
• C: 2-Way thread G1/4A Compact — 2 points (space-saving design)
• D: 2-Way thread G3/8A — 3 points (mid-range flow)
• E: 2-Way thread G1/2A — 4 points (high-flow applications)
• F: 2-Way thread G3/4A — 6 points (heavy-duty industrial use)

Technical Specifications

Common Applications

• Industrial rotary tables and indexing fixtures
• Robotic arms and automated assembly equipment
• Hydraulic winding and unwinding machines
• Pneumatic rotary conveyors and turntables
• CNC machine tool spindles
• Packaging and labelling machinery

Related Products You May Need

• 1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino — ideal for controlling pneumatic actuators in automated circuits.
• 1/4″ & 3/8″ to M4–M10 Thread Screw Mount Adapter — for precision thread conversion when mounting rotary components.

Further Reading

For best practices on safe operation of pneumatic and hydraulic components in industrial environments, refer to the OSHA Hydraulics & Pneumatics Safety Guidelines.

Learn more: Rotary joint

Frequently Asked Questions

Q: What is a 2-way pneumatic rotary joint and what does it do?

A: A 2-way (dual-channel) pneumatic rotary joint is a mechanical fitting that allows two separate channels of pressurized air or fluid to pass simultaneously through a continuously rotating interface. This eliminates the need for hoses to twist or wrap around rotating machine parts, making it essential for turntables, robotic arms, and any rotating machinery that requires continuous fluid or air supply.

Q: Which thread size should I choose for my system?

A: Select the thread size based on your system's existing port size and required flow rate. Smaller sizes like G1/8A and G1/4A are suited for compact, low-flow pneumatic circuits. Mid-range G3/8A works well for moderate flow, while G1/2A and G3/4A are designed for high-flow or heavier hydraulic applications. Always match the BSP (G-series) thread to your existing fittings.

Q: Can this rotary joint handle both air and hydraulic fluid?

A: Yes. The GY2T is rated for both pneumatic (compressed air) and hydraulic fluid applications, with a maximum pressure rating of ≤40 MPa. Ensure the seals and materials are compatible with your specific fluid medium before installation.

Q: What is the maximum speed and temperature this joint can handle?

A: The GY2T 2-way rotary joint is rated for a maximum operating speed of 100 revolutions per minute (RPM) and can withstand operating temperatures up to 90°C, making it suitable for most standard industrial environments.

Q: Is this rotary joint compatible with BSP (British Standard Pipe) fittings?

A: Yes. The "G" thread designation (G1/8A, G1/4A, G3/8A, G1/2A, G3/4A) refers to the BSP parallel thread standard, which is widely used in pneumatic and hydraulic systems across Europe, Asia, and Australia. Ensure your existing fittings also use BSP parallel (not tapered NPT) threads for a proper seal.