The R Series Slip Rings are designed to provide a reliable method of transferring electrical power, control signals, or data between stationary and rotating components. Slip rings are essential in applications where rotation is continuous, or where back-and-forth movement occurs, while maintaining uninterrupted electrical connectivity. This makes them critical components in machinery across industries such as manufacturing, robotics, and automation.

The R Series offers a robust and customizable solution, available in various bore sizes, amperages, and voltages to meet diverse operational needs. The slip rings are designed for durability, featuring long-life brushes that minimize wear and ensure extended operation. Additionally, concentric brush carriage alignment helps maintain consistent performance and reliability over time.

Key features of the R Series include:

  • Double-brushed assemblies with individual brush springs for consistent electrical contact and improved efficiency
  • Sealed ball bearings, which make the slip rings suitable for high-speed applications while reducing friction and extending operational lifespan
  • Optional terminal strips for easy and flexible electrical connections
  • Minimal downtime during maintenance, with a self-contained design for efficient serviceability
  • Customizable enclosures to meet specific environmental or application requirements

The R Series slip rings are designed for ease of integration into various systems and can be customized further with options like hazardous location compliance, high-voltage solutions, fiber optics, and stainless steel components. Whether your operation involves complex machinery, high-speed rotations, or extreme conditions, these slip rings provide a reliable and adaptable solution.

By ensuring uninterrupted electrical connections between rotating and stationary parts, the R Series slip rings help enhance operational efficiency, reduce maintenance needs, and support the longevity of your equipment.

Specification

Electrical Specifications:

  • Current Rating: 6.5 to 600 A (higher ratings available, contact factory)
  • Voltage Rating:
    • Standard: Up to 600 V
    • High Voltage Options:
      • Solid Core Units: 5-8 kV, epoxy-filled core for moisture and debris protection
      • Air Gapped Units: 15-25 kV, open construction to reduce debris collection and maintain dielectric properties
  • Conductor Count: Configurable based on application requirements
  • Brushing: Double brushing recommended for redundancy and extended service life

Mechanical Specifications:

  • Bore Size:
    • Standard: 1.5" to 10.0" (custom applications available for larger sizes, contact factory)
  • Rotation:
    • 360° continuous rotation
    • Indexing or stationary operation based on application
  • Bearing Type:
    • Standard: Oil-lite bushings
    • Optional: Ball bearings for high-speed applications

Performance Standards:

  • Durability: Long-life brushes and modular brush holders designed for high current carrying capacity
  • Environmental Protection:
    • Open Construction: Ensures compliance with NEC guidelines for conductor spacing and reduces moisture/debris accumulation
  • Operational Speed: Suitable for both low- and high-speed applications (ball bearing option recommended for high-speed use)

Regulatory Standards:

  • Built to conform to UL & NEC Standards
    • Explosion Hazard Location Compliance:
      • Class I Division 1, Groups C & D (Zones 0, 1, & 2)
      • Class II, Groups E, F, & G
  • NEMA Standards: NEMA 4 and NEMA 9 enclosure options available for water and dust-tight protection, and hazardous location applications

Optional Features:

  • Enclosure Customization: Available to meet specific environmental conditions (e.g., explosion-proof, hazardous location, moisture-resistant)
  • Modular Brush Holders: Can be combined to achieve high current-carrying capacity for custom applications
  • Terminal Strips: Optional for simplified connections
  • Application-Specific Customizations:
  • Configurable for high amperage, voltage, or custom requirements (contact factory for detailed customization options)

The R-Series Slip Rings provide high performance and adaptability for demanding industrial applications, designed to meet precise engineering standards while offering customization for specific operational needs.

Main Applications

R-Series slip rings are used in a wide range of industrial and commercial applications, such as:

  • Robotics
  • Manufacturing machinery
  • Automation systems
  • Wind turbines
  • Cranes
  • Rotating equipment in hazardous locations
  • Packaging machines
  • Irrigation units
Accessories

Terminal Strips: Optional for simplified connections

Modular Brush Holders: Available in the R-Series for high-current carrying capacities, with customizable brush configurations to meet application needs.

Enclosure Materials: Options for rugged, explosion-proof enclosures to meet environmental challenges, such as those found in hazardous locations.

Optional Epoxy-Filled Core: Protects against moisture and debris to maintain dielectric integrity in high-voltage applications.

Downloads
FAQ

What are the key differences between the V-Series and R-Series Slip Rings?

V-Series Slip Rings: Known for their compact, economical design, the V-Series is ideal for applications requiring up to 600 V and 75 A, with 1.5" bore size. Suitable for environments where compact design and high-speed capability (with ball bearings) are essential.

R-Series Slip Rings: Designed for robust applications, the R-Series offers higher customizability, with a full range of bore sizes (1.5" to 10"), amperages (6.5 to 600 A), and voltages. It features long-life brush wear, high-speed capability, and more enclosure options, including explosion-proof designs.

Do R-Series slip rings comply with any 3rd regulations?

Conductix-Wampfler manufactures V-Series and R-Series slip rings to National Electric Code (N.E.C.) guidelines, complies with UL 508, and is rated at 100% duty cycle. Listed units are available upon request.

What amperages are available for R-Series Slip Rings?

Standard amperages are 6.5 A to 600 A, please contact the factory for any additional needs.

What bore sizes are available for R-Series Slip Rings?

Standard bore sizes are 1.5", 2.5", 3.0" and 4.0", if in need of another size please contact the factory.

Can you make a Slip Ring custom to my application?

While our best lead time and pricing is on our standard units, we have full engineering and manufacturing capabilities to meet custom requirements. Contact the factory.

Are there high-speed applications for R-Series Slip Rings?

Yes, V-Series and R-Series offer ball bearing options for high-speed operations, ensuring smooth rotation and reduced wear. The R-Series is designed with sealed ball bearings for higher speed capabilities, and the V-Series includes ball bearings as an option for applications that demand it.

What enclosure options are available for hazardous environments?

V-Series and R-Series, both offer enclosures that meet NEMA 4 (water and dust tight) and NEMA 9 (hazardous location) standards.

R-Series offers specialized enclosures such as:

  • Explosion-Proof Revolving Unit (XRU): Cast aluminum enclosure
  • Explosion-Proof Swivel Unit (XSU): Rugged cast iron enclosure with painted finish
  • Compliance: Class I Division 1, Groups C & D (Zones 0, 1, & 2) and Class II Groups E, F, & G

How customizable are V-Series and R-Series slip rings?

Both series offer a high degree of customization to meet specific application needs:

V-Series: Customizable conductor count, brush configuration (double brushing recommended for redundancy), and enclosure options based on the environment.

R-Series: Highly customizable, including options for bore size, current, voltage, enclosure materials, hazardous location compliance, and more. Custom slip rings are available for high-amperage and high-voltage applications, with capacities up to 3000 A.

What certifications and regulatory compliance do Slip Rings of the V-Series and R-Series adhere to?

V-Series and R-Series: Built to conform to UL and NEC standards, and comply with requirements for hazardous location applications, including Class I Division 1 and Class II Groups E, F, & G for explosion-proof and hazardous locations.

R-Series: Additional certifications for ATEX compliance in hazardous environments.

What maintenance is required for V-Series and R-Series Slip Rings?

Both series are designed for minimal maintenance and reduced downtime:

  • Long-life brushes in both V-Series and R-Series reduce wear, ensuring a long operational life.
  • Self-contained designs allow for easy servicing and maintenance access.
  • For high-speed or high-voltage applications, periodic inspections of the brush wear and conductor rings are recommended.

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