Skip to main content
Skip to main content

Maintenance-free ELECTRICAL ROTARY GROUND

ROTOCON® MC-2000

Request Quote

ROTOCON® MC-2000 Model Specifications

»  Provides consistent low and stable resistance for high current applications»  Robust industrial design provides reliable long lasting performance
»  Requires ZERO grease or routine maintenance»  Remains unaffected by RPM or total number of revolutions

The high-current MC Series by Meridian Laboratory provides the perfect ground for rotational welding, plating, polishing, and other high-current applications that require rotation. Designed to withstand 100% duty cycles in continuous manufacturing and production processes, without interruption or downtime.

Contrary to conventional brushed rotary grounds, Meridian Laboratory’s MC Series are arc-free, do not have internal friction, and do not require greasing or any type of maintenance. All ROTOCON rotary grounds are built environmentally sealed, and with 304SS corrosion proof housings to ensure a long service life, even in the most challenging manufacturing environments and chemical exposure.

For applications requiring a through-bore, the ROTOCON ERGT Series electrical rotary grounds are listed in the chart below.

RPMModel dependent, see model specifications below*
MOUNTINGEnd of shaft with threaded stud or flange, or with set screws onto shaft (through-hole ERGT Series) Click here for installation and best practices video.
HOUSING304 Stainless steel
TERMINATIONSCable lug over threaded shaft, supplied with hardware and crush washers - flanges optional
OPERATIONCan be operated in any direction or orientation
MAINTENANCEFeatures permanently lubricated bearings, brush-free design requires no user maintenance

MC-2000 Model Specifications

AMPERAGEModel dependent, see specifications chart - 100% overload allowed for <60 seconds
FREQUENCYDC to 1GHz - Contact Meridian Laboratory for ampacity ratings at higher frequencies
STATIONARY CONTACT RESISTANCE<0.01mΩ
ROTATING CONTACT RESISTANCESame as stationary contact resistance (<0.1mΩ)
ELECTRICAL NOISE<0.01uV
OPERATIONIntrinsically immune to internal arcing

MC-2000 Model Specifications

AMBIENT TEMPERATURENot to exceed 160˚F (70˚C)
IP RATINGStandard is IP65, Available up to IP68
RoHS COMPLIANCEOptional, RoHS /CE Compliancy Available

Video: Installing Your ROTOCON MC Series High Current Rotary Ground

YouTube video

This video shows installation and best practices when installing your ROTOCON MC Series, high current rotary ground clamp. Meridian Laboratory’s full lineup of single contact, high current rotary ground clamps provide a consistent, maintenance-free contact unaffected by RPM or total number of revolutions. Contrary to conventional brushed rotary grounds, Meridian Laboratory’s MC Series are arc-free, do not have internal friction, and do not require greasing or any type of maintenance.

Advantages

  • Extremely low contact resistance (<1mΩ (0 TO 1,000 RPM))
  • Maintenance free – does not require grease or adjustment of any type
  • Unaffected by RPM and use over time
  • Environmentally sealed
  • Operates in any direction or orientation

Applications

  • Rotary welding
  • Electro-plating
  • Plasma cutting
  • Rotary magnetrons/sputtering deposition
  • Cable reels
  • Lightning strike ground (up to 100,000A tested)
  • Electro-polishing

Video: ROTOCON ERG – Electrical Rotary Ground Contact Resistance Demonstration

YouTube video
Contact Meridian Laboratory – High-Performance Rotary Electrical Connectors with Zero-Noise, Maintenance-Free Operation in Industrial Environments

Through-Bore Models (ERGT Series)

MCT Series

Model #
(Specify preferred hole diameter as XXXX)
Minimum Hole DiameterMaximum Hole DiameterMax Current (Amps)Total Length (TL)Outside Diameter (OD)Number of Conductive Studs on BodyStud Size / ThreadRPM (Continuous / Momentary)
ERGT-500-XXXX 0.250"2.000"500A4.55"4.3"11/2"-13200 / 400
ERGT-1000-XXXX 0.250"2.000"1000A4.55"4.3"21/2"-13200 / 400
ERGT-1500-XXXX 0.250"2.000"1500A4.55"4.3"31/2"-13200 / 400
ERGT-2000-XXXX 0.250"2.000"2000A4.55"4.3"41/2"-13200 / 400
ERGT-2000-XXXX 1.000"2.500"2000A5.187"6"41/2"-13150 / 300
ERGT-3000-XXXX 1.000"1.000"3000A5.187"6"61/2"-13150 / 300
NoteThrough-Hole diameter can be specified at time of order to exact dimension; standard tolerance of bore is +0.003" / -0.000"Assumes 100% duty cycle of direct current (DC); alternating current (AC) will have lesser ampacity ratingAll conductive studs must be used to guarantee rated amperage maximumHigher RPMs acceptable if for momentary time, or if max temperature rating not exceeded
Need a different size or arrangement? Custom models are available, contact Meridian Laboratory for other models, and specific information.

Click here for installation and best practices page.