THROUGH-BORE ROTARY GROUNDS

ROTOCON® ERGT Series

Request Quote

ROTOCON® ERGT Series 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

ROTOCON ERGT Series Rotating Electrical Grounds are designed with a through-hole to mount onto a shaft and conduct electricity around, or to the shaft. This is advantageous if media such as welding gases and other fluids pass through the center, or the location of the rotary ground cannot be at the end of a shaft or assembly. The ERGT Series is available in bore diameters ranging from 0.50″ to 2.50″ and up to 3,000 amps of current standard, with additional customization options available.

Alternatively, if there is access to the end of the rotating assembly or shaft, our full line-up of ERG Series rotary grounds are a great fit, that are an in-stock, and a more economical choice.

About

Advantages
Installation
Where To Purchase

Stop settling for less, it’s time to upgrade from your problematic Lenco and Tweco Rotary Grounds. Watch how Meridian Laboratory’s ROTOCON® Rotary Grounds outperform all other types of rotary ground solutions!

Watch our head-to-head comparison of different types of rotary grounding solutions!

Brushed rotary ground clamps and other traditional products on the market provide poor grounding capabilities, require constant grease maintenance and have a high arcing potential. This leads to machines operating at decreased current levels with variances in penetration, weld quality, and ultimately scrapped product.

Request a Quote

ERGT Series Rotary Grounds are designed with a through-hole to mount to a shaft and conduct current to or through. Watch the video above for more information on mounting of high-current, through-hole rotary grounds.

Learn more about best practices for installation, or Contact Us with any questions.

Meridian Laboratory
2415 Pleasant View Rd.
Middleton, WI 53562
Phone (608) 836-7571
T. Free (800) 837-6010
info@meridianlab.com
Request an ERGT quote

Advantages

Available in amperages 500-3,000A+
Bore-hole diameters ranging 0.250″ to 2.50″
Low and stable contact resistance – steady and consistent current delivery
Maintenance free – does not require grease or adjustment of any type
Unaffected by RPM and rotations over time
Environmentally sealed and durable construction

Applications

Rotary welding
Rotating electro-plating & polishing
Plasma cutting
Rotary magnetrons/sputtering deposition
Welding cable reels
Lightning strike grounds (up to 100,000A tested)
Electro-polishing

Custom rotating electrical ground with through-hole rated to 250 amps

Through-Bore Rotary Ground Models

MCT Series

Model # (Specify preferred hole diameter as XXXX)	Minimum Hole Diameter (HD)	Maximum Hole Diameter (HD)	Max Current (Amps)	Total Length (TL)	Outside Diameter (OD)	Number of Conductive Studs on Body	Stud Size / Thread	RPM (Continuous / Momentary)
ERGT-500-XXXX	0.250"	2.000"	500A	4.55"	4.3"	1	1/2"-13	200 / 400
ERGT-1000-XXXX	0.250"	2.000"	1000A	4.55"	4.3"	2	1/2"-13	200 / 400
ERGT-1500-XXXX	0.250"	2.000"	1500A	4.55"	4.3"	3	1/2"-13	200 / 400
ERGT-2000-XXXX	0.250"	2.000"	2000A	4.55"	4.3"	4	1/2"-13	200 / 400
ERGT-2000-XXXX	1.000"	2.500"	2000A	5.187"	6"	4	1/2"-13	150 / 300
ERGT-3000-XXXX	1.000"	1.000"	3000A	5.187"	6"	6	1/2"-13	150 / 300
Note	Through-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 rating			All conductive studs must be used to guarantee rated amperage maximum
Need a different size or arrangement? Custom models are available, contact Meridian Laboratory for other models, and specific information.

Products

Why Choose ROTOCON^®