BGB Technology provides custom and modular slip rings and hydraulic rotary joints for cranes and construction equipment applications.

BGB cranesWe can can create custom slip ring assemblies and products including:


Our production facility is located on the East Coast making it easy to ship throughout the US and beyond and our US based sales and customer service team can answer your questions quickly.

Contact us for more information about our custom slip rings or discuss your project.

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What is a Slip Ring?

A slip ring is  It ensures the current from a stationary wire keeps contact with the wire that needs to turn or rotate.

A metal rings used when a machine or device needs to supply power, or a signal, but also rotate at the same time. It provides a continuous electrical connection through brushes on stationary contacts.  Brushes are an integral part of any slip ring design.  The brushes, which often look like the end of a paintbrush, are metal conductors that drag on the outside of a metal ring. As the device rotates, the brushes conduct the electrical current, or signal. Without the brushes, the slip ring can’t conduct the electricity or current needed to function.

Latest BGB News

Remembering David Trevor Holt

It is with a heavy heart to confirm the sad loss of our Chairman, David Trevor Holt.  For the majority of the Company’s history, David had driven it’s growth as the only serving founder member, and had latterly begun to step back from the Business.  He was on the road to recovery following a recent hip operation but unexpectedly passed … Read More...

Four Common Problems With Fiber Optic Rotary Joints

A slip ring is an electromechanical device that transmits electrical current between a stationary and rotating structure. A Fiber Optic Rotary Joint (FORJ) is the contactless optical equivalent of a slip ring, since it transmits an uninterrupted optical signal as it rotates. FORJs are widely used in many applications, including remotely operated … Read More...

Slip Rings In Amusement Park Rides

Summer is when people head out to their favorite amusement park to enjoy everything from the classic carousel to the biggest roller coasters. Many of the best rides incorporate an impressive light display while spinning and turning at the same time. But you don’t see electrical outlets or wires hanging off the sides of the ride – so what makes … Read More...

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