RH Series Through-Hole Conductive Slip Rings
The RH Series Through-Hole Conductive Slip Ring is a high-performance electrical component designed for transferring power and signals between stationary and rotating parts. Featuring a hollow shaft design, these slip rings allow cables, pipes, or optical fibers to pass through the center while maintaining uninterrupted electrical connection, making them ideal for rotary platforms, slip ring assemblies, and industrial automation systems.
The RH Series is widely used in robotics, packaging machines, wind turbines, radar systems, rotating sensors, and other dynamic equipment requiring continuous rotation without cable twisting.
1. What Is a Through-Hole Conductive Slip Ring?
A Through-Hole Conductive Slip Ring is a rotary electrical interface that allows power and electrical signals to pass through a rotating assembly. Its defining feature is a hollow center, which enables cables, tubes, or mechanical components to run through the ring, saving space and simplifying complex designs.
The RH Series slip rings typically support:
Power transmission: AC/DC current
Signal transmission: Analog or digital signals
Mixed transmission: Power + data simultaneously
This combination of features ensures stable and reliable performance even in high-speed or continuous rotation applications.
2. Key Features of RH Series Through-Hole Slip Rings
1) Hollow Shaft Design
The through-hole allows easy passage of cables, hydraulic lines, or pneumatic tubes without affecting rotation.
2) High Reliability & Durability
Precision bearings, gold or silver contacts, and robust housing ensure long operational life and minimal electrical noise.
3) Compact & Lightweight
Optimized design for space-constrained installations.
4) Wide Range of Electrical Capacity
Supports multiple circuits, currents, and voltage ratings according to industrial standards.
5) Low Electrical Noise
Stable contact design ensures high-quality signal transmission and minimizes interference.
6) Easy Installation
Mountable on standard shafts with flexible mounting options.
3. Specifications (Typical RH Series Features)
| Parameter | Description |
|---|---|
| Circuits | 2–36 rings |
| Current per ring | 2A–10A (depending on model) |
| Voltage rating | Up to 380V AC/DC |
| Rotational speed | 0–300 RPM (standard) |
| Contact material | Gold-Gold / Silver-Silver |
| Working temperature | -20°C to +80°C |
| Housing material | Aluminum or Plastic |
| IP protection | IP51–IP54 (customizable) |
| Inner diameter | 5–50mm (hollow shaft) |
| Cable length | Standard 300mm–500mm, customizable |
4. Applications of RH Series Slip Rings
Industrial Automation: Rotary tables, CNC machines, packaging systems
Renewable Energy: Small wind turbines, solar tracking systems
Robotics: Robotic arms, rotary joints, multi-axis equipment
Medical Devices: Imaging systems, diagnostic equipment
Radar & Communication: Rotating antennas, sensors, surveillance equipment
Material Handling: Rotating conveyors, automated storage systems
5. Advantages of RH Series Through-Hole Slip Rings
Continuous rotation without cable twisting
Stable electrical and signal transmission
Flexible customization for circuits, voltage, and current
Compact design for space-saving applications
Low maintenance and long operational life
6. Why Choose Us as Your Slip Ring Manufacturer
As a professional Electrical Slip Ring Manufacturer, we provide:
1) OEM/ODM Services
Custom circuit numbers, shaft diameters, current ratings, and cable lengths.
2) High-Quality Materials
Precision copper or gold contacts, anti-corrosion housing, and durable bearings.
3) Strict Quality Control
Each unit undergoes electrical, mechanical, and rotation tests to ensure stability.
4) Fast Lead Time
Large production capacity supports both prototype and mass production orders.
5) Certification & Compliance
RoHS, CE, and SGS certifications available.