Pneumatic and Liquid Slip Rings for Rotating Air and Fluid Lines
A pneumatic or liquid slip ring — a rotary union — carries compressed air, gas, water, oil, grease or emulsion across a rotating joint, on its own or combined with electrical rings in the same body.
All 24 Pneumatic and Liquid Slip Rings Models
Listed in full, each with its own parameter table.
What This Family Is For
The constraint
A rotating station that has to clamp with air, cool with water or lubricate with oil needs the fluid line to turn with the machine. Coiled hose limits the turn and eventually fails at the flex point.
How INGIANT answers it
INGIANT builds gas-electric and liquid-electric combination units — for example a 30 mm through bore with four pneumatic passages and a power stack, or a 150 mm photoelectric-hydraulic body — so air, fluid and electricity share one axis and one mounting.
Who buys this family
Builders of filling and packaging machinery, rotary indexing and clamping stations, automatic welding and wrapping equipment, subsea and drilling tools and injection moulding machines.
Standard Values Across This Family
These are the catalogue values that appear on most models in this family. Every one of them can be changed on a customised build.
Rotating speed
Catalogue units are rated 0–600 rpm. Lower and higher speed designs are built to order.
Working temperature
-40 °C to +65 °C on standard builds, with wider ranges designed against the application.
Protection level
IP54 as standard, with sealing grades up to IP68 where the environment demands it.
Insulation
Insulation resistance ≥1000 MΩ at 500 VDC, insulation strength 1500 VAC at 50 Hz for 60 s.
Contact system
Precious metal ring and brush pairs with dynamic resistance variation below 10 mΩ.
Lead wire
Colour-coded Teflon insulated tinned stranded flexible wire, 500 mm + 20 mm as standard.
Industries Using Pneumatic and Liquid Slip Rings
Articles About Pneumatic and Liquid Slip Rings
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Pneumatic and Liquid Slip Rings Questions Engineers Ask
How many fluid passages can be combined with electrical rings?
The catalogue includes single passage gas-electric units and multi-passage combinations such as four pneumatic passages with power and signal rings in one body.
What working pressure and medium can you handle?
Working pressure, medium and seal material are set per design. Send the medium, the pressure, the flow and the rotating speed with your enquiry.
Can a pneumatic slip ring also carry Ethernet?
Yes — the site includes gas-electric hybrid units that transmit Ethernet signals alongside the pneumatic passages.
Need Help Narrowing 24 Models Down to One
Send the rotating speed, the installation size, the circuit count, the voltage and current per ring, the signal types, the temperature range and the IP requirement. You get a model number and a drawing back.