The large through bore slip rings are designed for heavy-duty machinery and industrial automation.. Featuring an expansive 150mm inner diameter (ID) and 250mm outer diameter (OD), they simplify integration with bulky central shafts, pipes, or cabling. And their 48 power/signal channels, each supporting currents of up to 20A, guarantee reliable data and power transmission.

Drawing(mm)

Picture

Drawing

Parameters

Mechanical:

Working speed	500rpm
Operating temperature	-40℃~ +100℃
Contact material	Precious metal
IP Grade	IP 56

Electrical:

Circuit	2~48 ( 100mm body is for 4 channels )
Current	5A,10A,15A,20A
Voltage	≤380V
Dielectric strength	≥1000V@50Hz between each circuit
Insulation resistance	1000MΩ@ 500VDC
Electric noise	≤7mΩ
Lead wire size	22AWG, or 17 AWG, 14AWG, UL, color Teflon, silver or tin plated
Lead wire length	300mm

Critical Dimension of the main body Length

Model	Length "L"
Model	Current	Formula (A means No. of ring)	6 circuits	12 circuits	18circuits
BTH150250	2A/5A	60+10×A	120mm	180mm	240mm
BTH150250	10A~20A	60+12×A	132mm	204mm	276mm

Color code ( circuit 1 is from rotor side )

AWG14#
1	2	3	4	5	6	7	…
Black	Red	Yellow	Green	Blue	White	Brown	Recycle
AWG17#
1	2	3	4	5	6
Black	Red	Yellow	Green	Blue	White
7	8	9	10	11	12
Brown	Orange	Gray	Pink	White/black	White/red
13	14	15	16	17	18	…
White/yellow	White/green	White/blue	White/brown	White/orange	White/gray	Recycle
AWG22#
1	2	3	4	5	6	7	…
Black	Red	Yellow	Green	Blue	White	Brown	Recycle
AWG24#
1	2	3	4	5	6	…
Black	Red	Yellow	Green	Blue	White	Recycle
AWG26#
1	2	3	4
Black	Red	Yellow	Green
5	6	7	8	…
Blue	White	Brown	Orange	Recycle
AWG28#
1	2	3	4	5
Black	Red	Yellow	Green	Blue
6	7	8	9	10	…
White	Brown	Orange	White/Red	White/blue	Recycle

Main Applications

Here are the main applications of large through bore slip rings:

Industrial Machinery

* Heavy Equipment: Construction and mining equipment
* Manufacturing Plants: Large rotary tables and other rotating machinery

Wind Turbines

* Yaw and Pitch Control: Yaw and pitch systems of large wind turbines

Medical Equipment

* Large Imaging Systems: Large medical imaging equipment, like MRI and CT scanners

Aerospace and Defense

* Radar Systems: large radar and antenna systems.

* Military Vehicles: Turret systems of tanks and other armored vehicles

Offshore and Marine Applications

* Oil and Gas Rigs: Rotating parts of offshore oil and gas rigs
* Marine Propulsion Systems: Propulsion and maneuvering systems of large ships and submarines

Renewable Energy

* Solar Trackers: Large solar panel tracking systems

Automation and Robotics

* Large Robotic Arms: Large industrial robots
* Automated Warehouses: Large rotary conveyors and automated storage systems

Entertainment and Themed Attractions

* Amusement Rides: Large rotating rides and attractions
* Stage Equipment: Rotating stages and lighting rigs

FAQ

How do you ensure slip ring quality?
Our slip rings are manufactured under strict ISO standards, covering raw materials, production, and quality inspection. They are also CE, RoHS, FCC, and UL certified.

Do you offer customized slip rings?

Yes. Our 26+ years of R&D experience enables us to tailor slip rings and solutions to your exact needs.

What is the delivery cycle of your slip rings?

Standard models: 3–5 weeks for samples / 2 weeks for bulk orders.
Customized designs: 2–4 weeks, depending on complexity.

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