Innovative Maintenance Free 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 & MCT Series are arc-free, do not have internal friction, and do not require greasing or any type of maintenance. All single contact, high current ROTOCON MC & MCT Series rotary grounds are built with environmentally sealed and corrosion proof housings to ensure a long service life without maintenance.
Suitable for all environments and applications including welding, electro-plating, cutting, and other high current industrial applications, the ROTOCON MC & MCT Series is designed to withstand 100% duty cycles in continuous manufacturing and production processes. The ROTOCON’s brush-free design eliminates all issues such as maintaining brush contact, application of conductive greases, and the elevated contact resistance associated with conventional brushed rotary grounds. With the MC Series, you will achieve a more consistent ground, with zero noise or elevated contact resistance over time and revolutions.
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 ROTOCONs 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.
The MC series is available both in end of shaft and through-bore configurations in a range of amperage levels, dependent on your needs. For applications requiring high frequency and high current, Meridian Laboratory offers specialized versions to accommodate for temperature rise due to eddy currents.
Watch the video below to see first hand the benefits which ROTOCON rotary grounds can provide.
| RPM | Model dependent, see model specifications below* |
| MOUNTING | End of shaft with threaded stud or flange, or with set screws onto shaft (through-hole MCT Series) |
| HOUSING | 304 Stainless steel |
| TERMINATIONS | Cable lug over threaded shaft, supplied with hardware and crush washers - flanges optional |
| OPERATION | Can be operated in any direction or orientation |
| MAINTENANCE | Features permanently lubricated bearings, brush-free design requires no user maintenance |
| AMPERAGE | Model dependent, see specifications chart - 100% overload allowed for <60 seconds |
| FREQUENCY | Standard up to 250MHz, Optional up to 1GHz (with certain models & applications) |
| STATIONARY CONTACT RESISTANCE | <0.01mΩ |
| ROTATING CONTACT RESISTANCE | Same as stationary contact resistance (<0.1mΩ) |
| ELECTRICAL NOISE | <0.01uV |
| OPERATION | Intrinsically immune to internal arcing |
| AMBIENT TEMPERATURE | Not to exceed 160˚F (70˚C) |
| IP RATING | Available up to IP67 |
- Extremely low contact resistance
- Maintenance free
- Unaffected by RPM and use over time
- Environmentally sealed
- Available in through-bore and end of shaft designs
- Rotary welding
- Electro-plating
- Rotary cutting
- Rotary magnetrons/sputtering deposition
- Cable reels
- Electro-polishing
- Mounting attachment C-clamps
- Custom mounting flanges
- Liquid cooling for high temperature applications
- Fiber Optic Rotary Joint (FORJ)
- Rotary Union
