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Maintenance free ELECTRICAL ROTARY GROUND

ROTOCON ERG-300


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ROTOCON ERG-300 Model Specifications

The high-current ERG Series provides the perfect ground to meet the most demanding applications. The flexible design offers an abundance of exciting options and mounting variations. With the MC Series, you will achieve a more consistent ground, with zero fluctuations in resistivity, or elevated contact resistance over time and revolutions; this will lead to a better end product in rotational welding, plating, polishing, and other high-current applications that require rotation. ROTOCON rotary grounds can be used interchangeably on the positive or negative (ground) of an application without any difference in performance.

Meridian Laboratory’s full lineup of single contact, high current rotary ground clamps provides a consistent, maintenance-free, rotating electrical contact and connection unaffected by instantaneous RPM (for high speed applications) or total number of revolutions; ROTOCON rotary grounds oftentimes surpass 1B+ revolutions without demonstrating a change in electrical resistance or performance. Contrary to conventional brushed rotary grounds, Meridian Laboratory’s ERG 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 without maintenance, even in the most challenging manufacturing environments and chemical exposure.


ERG-300 Configuration Options

ERG-300 Technical Specifications


ERG300A
Part #ERG-300-01ERG-300-02ERG-300-11ERG-300-12ERG-300-21ERG-300-22
Body Side

Stud (w/ nuts)

Flange

Stud (w/ nuts)

Stud (w/ nuts)

Flange

Flange

Shaft Side

Threaded Hole

Threaded Hole

Stud (w/ nuts)

Flange

Stud (w/ nuts)

Flange

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RPM (Continuous / Momentary)1,750 / 3,000
MOUNTINGEnd of shaft with threaded stud or flange
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
AC/DC CURRENT300A
FREQUENCY0 TO 250 MHz
MAX CONTINUOUS RPM1,750
OPERATING TEMP-20°C TO 70°C
HOUSING MATERIAL304 stainless steel
CONTACT RESISTANCE<1mΩ
DYNAMIC RESISTANCE<1mΩ (0 TO 1,750 RPM)
AC CURRENT500A, f = 60Hz
DC CURRENT500A
RPM3,000
AMBIENT TEMPERATURENot to exceed 160˚F (70˚C)
IP RATINGAvailable up to IP67
  • Extremely low contact resistance
  • Maintenance free
  • Unaffected by RPM and use over time
  • Environmentally sealed
  • Extra options and easy mounting variations
  • Better adaptability with a flexible design

 

  • Rotary welding
  • Electro-plating
  • Rotary cutting
  • Rotary magnetrons/sputtering deposition
  • Cable reels
  • Electro-polishing

Additional High-Current ROTOCON Rotary Grounds

MC Series

ModelMax Current (Continuous)Total LengthBody LengthDiameterStud Size/ThreadWeightRPM (Continuous / Momentary)
MC-250250A4.50"2.00"1.63"3/8"-161.3 Lbs.1,750 / 3,000
MC-500500A5.25"2.31"2.00"9/16"-122.3 Lbs.1,250 / 2,500
MC-750750A6.62"2.62"2.50"3/4"-104 Lbs.750 / 1,500
MC-10001000A8.62"3.62"3.00"1"-815 Lbs.500 / 1,000
MC-20002000A14.5"6.25"4.50"1-1/2"-632 Lbs.350 / 500
MC2F-3000 3000A10.00"6.375"5.00"Flange Mount48 Lbs.250 / 450
MC2F-60006000A10.01"8.41"8.00"Flange Mount100 Lbs.250 / 450
Need a different size or arrangement? Not all models are listed, contact Meridian Laboratory for other models, and specific information.

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