Mod-Tronic Instruments Ltd.

12-1 Delta Park Blvd, Brampton, Ontario, L6T5G1 Canada View map
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Slip Rings

Mod-Tronic Instruments Ltd. offers a superior solution to replace slip rings: Mercotac rotary electrical connectors. These connectors offer many benefits, such as longer life, lower cost, no electrical noise, and zero maintenance requirements.  One of the major drawbacks of slip rings is that they are subject to wear and debris, and they require continual maintenance to prevent degradation of the electrical connection. In contrast, Mercotac connectors provide a connection that remains constant and unchanged. Rotary electrical connectors can be used for many different applications ranging from cable reels and heated rollers to robotics.

Rotary connectors

The key to the advantages offered by Mercotac electrical connectors is their innovative design. These connectors have a conduction path that uses liquid metal that is molecularly bonded to the contacts. When the connector is rotated, the liquid metal maintains the connection without causing wear. In addition to eliminating wear, this design also offers an extremely low resistance connection (less than one milliohm resistance) with near zero electrical noise.

The selection available includes connectors with one, two, three, four, six, or eight conductors. They are rated for voltages up to 500 volts, and rotation speeds up to 7500 RPM. Mercotac rotary electrical connectors are made in the United States and feature sealed ball bearing construction. In addition to all the advantages offered by these connectors, they also cost less than slip rings with comparable capacity.

Company expertise

Mod-Tonic Instruments Ltd. has been in business for over 45 years, and we have earned a reputation for working alongside our customers. That means we make sure we fully understand the application and requirements before recommending the ideal solutions from our vast selection. We carry a broad range of sensors, controls, heaters, transducers, and instrumentation from 14 leading manufacturers.

Industries served

We have experience working with customers from many diverse industries. Some of the applications our rotary electrical connectors are used for include robotics, turntables, heated rollers, cable reels, control devices, packaging, laminating, strain gauges, remote video inspection, and semi-conductor production. 


Mod-Tronic Instruments Ltd.