Slip rings, also known as collector rings, are essential for reliable power transmission in rotating equipment. At City Rewinds & Drives, we manage every aspect of inspection, repair, and performance restoration with precision and care. Over time, slip rings can suffer from wear, erosion, or scoring on contact surfaces, as well as electrical tracking, arcing, insulation breakdown, or mechanical misalignment. Other common issues include brush or contact wear, contamination or corrosion that affects conductivity, ring imbalance, and excessive heat, vibration, or noise. Each of these faults can seriously impact performance, but our engineers are equipped to diagnose and repair them quickly, restoring smooth operation and long-term reliability.
Slip rings are not limited to motor applications. We also specialise in slip rings used in non-motor systems such as rotary unions, generators, turntables, rotors, and precision instrumentation. Our engineers can inspect, refurbish, and rebuild these units either in our fully equipped workshop or directly on-site, ensuring consistent electrical continuity and minimal downtime. We also provide specialist services for tower crane and gantry slip rings, including on-site inspection, fault finding, and refurbishment at height. This includes cleaning and resurfacing ring segments, replacing brushes and holders, and performing realignment, balancing, and electrical testing. When removal is not practical, our mobile team works safely on-site to deliver a rapid, high-quality repair that keeps your equipment running reliably and efficiently.
Our Repair Services Include
