Skip to main content
High Speed Slip Ring Alternatives (2K - 10K RPM)


Small Slip Rings for Tight Spaces and High Speeds

For applications featuring a limited mounting space and/or operating at speeds above 2,000 RPM, Meridian Laboratory has developed its unique compact ROTOCON MM Series.  With up to 12 contacts available, the ROTOCON MM series of high speed slip rings is capable of transmitting both low current power, as well as signal and data within the same assembly.  Like all ROTOCON brushless slip rings, the contact resistance is extremely low, both when stationary and while rotating. The MM Series of high speed slip rings is especially well utilized in high-speed applications (above 2,000 RPM) and remains unaffected in performance or reliability. If you require more contacts or if the application is not space limited, see our full lineup of M-Series, End-of-Shaft, ROTOCON rotary electrical connectors. For projects that require operating speeds greater then 10,000 RPM, see our UHS-Series, ROTOCON Ultra-High-Speed Rotary Transmitters.

Unlike conventional brushed slip rings which rely on metal on metal contacts and are limited by RPM, electrically noisy, and require adjustment and maintenance for proper operation, all ROTOCON slip rings are brushless, functioning through a molecularly bonded viscous metal film which remains unaffected by speed, provides clean and noise-free electrical signals, and requires zero maintenance.
Rotocon Slip Ring Gif

Signal Quality Demonstration: Conventional Slip Ring vs. ROTOCON

The ROTOCON platform utilizes a sealed contact system that is brushless and provides the cleanest electrical signal available in any rotary electrical contact solution, for both power and data signals, you can count on no measurable noise from our rotary electrical union.

Why Choose ROTOCON? Request a ROTOCON quote

RPMModel dependent, see model specifications
MOUNTINGEnd of shaft or flange (Click here for installation and best practices video.)
HOUSING MATERIALAnodized aluminum or 304 stainless steel
TERMINATIONSRing terminals, flying leads, or miniature connectors
OPERATIONCan be operated in any direction or orientation
MAINTENANCEFeatures permanently lubricated bearings, brush-free design requires no user maintenance
VOLTAGEStandard: Up to 600V AC/DC, Optional: Up to 1,500V AC/DC
AMPERAGEModel dependent, up to 4A/channel (channels can be bridged in parallel, for higher capacity)
FREQUENCYUp to 1GHz (Application dependent)
DATA & SIGNAL TRANSMISSIONEthernet (10/100/1000Mbps), Etherlink, LAPPNET, Profinet, Profibus, ControlNet, DeviceNet, CAN-Bus, RS485, RS432, RS422, USB (1.0/2.0), Modbus, EtherCAT, CC-Link, coax, thermocouple (all types) and all other major communication protocols (With an appropriate number of circuits and cables)
ROTATING CONTACT RESISTANCESame as stationary contact resistance (<0.1mΩ)
OPERATIONIntrinsically immune to internal arcing
AMBIENT TEMPERATURENot to exceed 160˚F (70˚C)
IP RATINGAvailable up to IP67
  • Ideal for high speed applications and functions
  • Compact, miniature sized for tight spaces
  • Brushless, maintenance-free operation
  • Combines with rotary union, fiber optic rotary joint (FORJ) and other add-ons
  • Unaffected by machine vibration or rotational speed
  • Environmentally sealed
  • Stress/strain gage monitoring
  • Wind turbine control
  • High speed dynamometer measurement
  • Torque/vibration monitoring
  • Bio-monitoring of laboratory specimens
  • High speed satellite transmission
End of Shaft Mounting
End of Shaft Mounting
Double End of Shaft Mounting
Double End of Shaft Mounting
Flange Mounting
Flange Mounting
Shaft Flange Mounting
Shaft Flange Mounting
Torque Restraint Mounting
Torque Restraint
ROTORFlying Leads (Standard)
BODYRing Terminals (Standard), Potted Miniature Connector, Potted Leads
RPMUp to 15,000 RPM
MOUNTINGThrough-hole, end of shaft, or flange mount available
HOUSING6061 Aluminum or 304 Stainless steel
PASSAGESUp to 20 Passages
PRESSUREUp to 23,000 PSI - speed and media dependent
TEMPERATURE-321F to 900F, depending on options
FIBER TYPESSingle-mode E9/125μm
Multi-mode G50/125 μm
Multi-mode G62.5/125 μm
*Fiber protection available
CHANNELSStandard: 1, 2, 3-20 Channels
Custom: Up to 81 Channels
DIGITAL DATA TRANSMISSIONUp to 40Gbits/s per channel
RPMUp to 3,000 RPM (Model specific)

Compact Miniature - End of Shaft Models

MM Series

ModelMax Current (Continuous)Body LengthWeight (including 36" leads)RPM (Continuous / Momentary)
MM-25.5A1.14"3.08 oz.4,000 / 8,000
MM-34A1.3"3.61 oz.4,000 / 8,000
MM-44A1.46"4.14 oz.3,500 / 7,000
MM-62.75A1.78"5.20 oz.3,500 / 7,000
MM-81.5A2.1"6.26 oz.3,000 / 6,000
MM-101.5A2.42"7.32 oz.3,000 / 6,000
MM-121A2.58"7.85 oz.3,000 / 6,000
Not seeing what you need? Contact Meridian Laboratory for more models and information.

Click here for installation and best practices video.

Why Choose ROTOCON? Request a ROTOCON quote