Rotary Joints for Media Transfer Across a Turning Interface
Rotary joints transfer a medium — fluid, gas, light or microwave energy — between a fixed and a rotating part, and are the mechanical counterpart to the electrical slip ring.
All 11 Rotary Joints Models
Listed in full, each with its own parameter table.
What This Family Is For
The constraint
Some rotating transfers cannot be made with sliding contacts at all: a hydraulic line, a compressed air feed, a laser path or a microwave feed each needs its own sealed or matched rotating structure.
How INGIANT answers it
INGIANT builds these rotating unions on their own and integrates them with electrical stacks, so one assembly on the axis handles everything the machine has to pass through the joint.
Who buys this family
Machine builders working on rotary tables, wrapping and filling machines, drilling and subsea tools, antenna positioners and process equipment.
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.
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Rotary Joints Questions Engineers Ask
What is the difference between a slip ring and a rotary joint?
A slip ring transfers electrical power and signals through sliding contacts. A rotary joint transfers a medium such as fluid, gas, light or microwave energy through a sealed or matched rotating structure.
Can both be supplied as one assembly?
Yes. Combining them in one body is the normal INGIANT approach when the machine has one rotating axis and several things to pass through it.
What determines the service life?
Speed, medium, pressure, temperature and duty cycle. INGIANT offers Standard, Industrial and Premium quality grades, with service life up to one billion revolutions depending on the grade.
Need Help Narrowing 11 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.