OVERVIEW

Through-Hole Slip Rings Designed for Shaft Mounting and Media Pass Through

  • Up to 32 contacts available with up to 2” diameter through-hole (standard), up to 4" diameter (custom)
  • Designed for over-shaft mounting for media / power to pass through the center hole
  • Capable of power and data in one assembly

ROTOCON brushless through-hole slip rings are designed for applications which require a shaft or media to pass through the center of a slip ring. Through-hole slip rings are commonly used when a solid shaft is being used as a drive for rotating torque, or when a medium such as air, water or gas are passed through the center of a system.

ROTOCON brushless through-hole slip rings are offered in standard bore sizes up to 2.0” diameter, and custom sizes up to 4.0”. They are often used on rotary indexing tables, packaging and filling equipment, and other applications which require a hollow shaft slip ring.

ROTOCON brushless through-hole slip rings are maintenance-free and commonly used in applications such as rotary indexing tables, packaging and filling equipment, semiconductor manufacturing, instrumentation, and various industrial and scientific settings. They deliver clean electrical power and signals with no measurable electrical noise, remaining unaffected by machine vibration, rotational speed, or total revolutions.

Designed for durability, all ROTOCON brushless through-hole slip rings are environmentally sealed and made from robust materials, making them the ideal solution for manufacturing, R&D, and high-performance applications. Their strong industrial design ensures reliable, long-lasting operation without the downtime or routine maintenance required by traditional brushed slip rings.

Meridian Laboratory offers the value-add capability of integrating with rotary unions and fiber optic rotary joints in a single combined assembly. For applications which have mounting access at the end of the shaft, please see our complete line of End-of-shaft, multi-channel slip rings.

Advantages

Why choose ROTOCON Brushless Through-Hole Slip Rings?

BRUSHLESS SLIP RING TECHNOLOGY PROVIDES SUPERIOR PERFORMANCE

ROTOCON through-hole slip rings are brushless by design, functioning through a molecularly bonded, viscous metal film contact to transfer electrical power and signal. ROTOCON through-hole slip rings exhibit near-zero electrical resistance while stationary, or during rotation – regardless of rotational speed, or total number of revolutions.

  • NEAR-ZERO ELECTRICAL NOISE, STATIONARY OR ROTATING
  • HIGH SPEED CAPABLE WITHOUT FLUCTUATION IN ELECTRICAL RESISTANCE
  • NO INTERNAL WEAR PARTS

MAINTENANCE FREE THROUGH-HOLE SLIP RINGS

Conventional, brushed slip rings rely on metal-on-metal contact to transfer power between stationary and rotating components. ROTOCON through-hole slip rings do not have any internal wear parts, and therefore do not require any maintenance, adjustment, or replacement of parts during the lifetime of their use.

  • NO METAL-ON-METAL CONTACT
  • 100% MAINTENANCE-FREE
  • OUTLAST TRADITIONAL, BRUSHED SLIP RINGS
  • ROUTINELY SURPASS 500M+ TOTAL REVOLUTIONS

RELIABLE, HIGH-SPEED ETHERNET SLIP RING PERFORMANCE

ROTOCON through-hole slip rings transmit high-speed Ethernet based communication up to 1000 Mbps (1 Gbps) reliably and without bit errors, packet loss, or crosstalk. They are also capable of many other communication protocols including Etherlink, Profinet, EtherNet/IP, Profibus, Modbus TCP/IP, Powerlink, CC-Link IE, SERCOS III, SynqNet, MECHATROLINK-III, ControlNet, RS485, RS432, RS422, EtherCAT, and more.

  • GUARANTEED ETHERNET TRANSMISSION WITHOUT BIT ERRORS OR CROSSTALK
  • HIGH SPEED CAPABLE UP TO 1 Gbps
  • COMPATIBLE WITH MANY OTHER DIGITAL COMMUNICATION PROTOCOLS

PERFECT SLIP RING SIGNAL INTEGRITY, STATIONARY OR ROTATING

ROTOCON through-hole slip rings are unique in their ability to provide excellent analog signal transmission, without fluctuation or noise – whether stationary or while rotating. They are the ideal choice for sensitive electrical signals such as encoders, thermocouples, strain gauges, and more.

  • PERFECT SIGNAL INTEGRITY – REGARDLESS OF SPEED
  • NEAR-ZERO ELECTRICAL NOISE
  • EXCELLENT FOR ANALOG SIGNAL TRANSMISSION

ENVIRONMENTALLY SEALED THROUGH-HOLE SLIP RINGS PROVIDE SAFE AND LONG LASTING OPERATION

ROTOCON through-hole slip rings are environmentally sealed to provide a superior rotating electrical connection. They are sealed from the outside environment and remain unaffected by dust and liquids, as well as humidity and other environmental factors that conventional, brushed slip rings are challenged by. They are internally arc-free making them the ideal choice for wet, dust-filled, clean rooms and other challenging operating environments.

  • ENVIRONMENTALLY SEALED DESIGN
  • UNAFFECTED BY LIQUIDS, DUST, AND OTHER FACTORS
  • ROBUST DESIGN FOR HARSH ENVIRONMENTS

COMBINED POWER & SIGNAL WITHOUT INTERFERENCE

Traditional slip rings struggle to accommodate power and signal within a single assembly, and suffer from noise and interference. The unique design of ROTOCON through-hole slip rings allows for lossless signal without electrical interference during operation.

  • AC/DC power and signals compatible within the same assembly
  • Reliable Ethernet, encoder, strain gauge, and other sensitive signals
  • Zero noise or dynamic contact resistance introduced into your system

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CONFIGURATIONS

Through-Hole Slip Rings

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    4” Through-Hole Slip Rings

    3-4” Diameter

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    3” Through-Hole Slip Rings

    2-3” Diameter

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    2” Through-Hole Slip Rings

    1-2” Diameter

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    1” Through-Hole Slip Rings

    0-1” Diameter

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    Custom Slip Rings Series

    Custom Rotating Electrical Slip Rings

    Key Features

    • Ability to easily modify standard ROTOCON brushless slip rings and rotary electrical connectors
    • Custom solutions with no minimum order quantity and short lead times
    • Highly customizable ROTOCON brushless slip rings to meet unique mechanical, electrical, and environmental requirements.
    View Custom Slip Rings

Applications & Uses

Common Uses for Through-Hole Slip Rings

ROTARY PACKAGING & FILLING

ROTOCON through-hole slip rings are used on rotational packaging and filling machinery in combination with rotary unions to fill sealed beverages and containers. They excel in continuous-duty applications where downtime is costly.

ROTARY INDEXING TABLES

ROTOCON through-hole slip rings are commonly mounted on indexing tables where the drive motor is center mounted, while passing power and Ethernet to devices and sensors on the top of the rotary table.

CABLE & WIRE BUNDLING MACHINES

ROTOCON through-hole slip rings can be utilized in wire manufacturing and cable bundling equipment which allows for materials to pass through the center. They provide stable and consistent electrical contact to motors, drives, and sensors while rotating.

Industries

Industries that use ROTOCON Through-Hole Slip Rings

heavy equipment digging

Food & Beverage

Application & Uses

  • Rotary Fillers
  • Rotary Heat Sealers
  • Plastic & Foam Container Manufacturing
oil gas building

Medical & Pharmaceutical

Application & Uses

  • Fill & Capping Equipment
  • Mixing Vessels & Tanks
  • Label Applicator
welding sparks

Original Equipment Manufacturers

Application & Uses

  • Converting Equipment
  • Rotary Index Tables
  • Thermoforming Machinery

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Resources

Helpful Information

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