Electrical Service Loops

Charter/Nelson Dunn Experience

Charter Industrial’s acquisition of Nelson Dunn brings a wealth of knowledge and experience to the top drive service loop market. With this acquisition, Charter Industrial can offer even more reliable and high-quality top drive service loops to its customers.

Nelson Dunn has a long-standing reputation for producing exceptional electrical top drive service loops that are specifically designed to withstand harsh drilling environments.  These service loops are critical components of any drilling rig, and they play a crucial role in the safe and efficient operation of drilling equipment.

Charter Industrial’s electrical top drive service loops are built to the highest standards, incorporating advanced technologies and innovative designs. With the expertise of Nelson Dunn, Charter Industrial has further enhanced its electrical top drive service loops, ensuring that they continue to meet and exceed the needs of its customers.

Our Product Quality Means:

  • Temperature Rating:
    • Up to 125ºC / 257ºF
  • Extreme Flexibility
  • Lower Weight
  • Easy to Install
  • High Abrasion Resistance
  • Extreme Flame Resistance
  • Longest Service Life
  • Extreme Corrosion Resistance


  • Quickest Turnaround Time to Get You Up and Running
  • Designed for All Hazardous Locations
  • Completely Customizable Service Loop Assemblies
  • Cable Assembly Options Include:
  • Power & Variable Frequency Drive
  • Control
  • Instrumentation
  • Auxiliary
  • Composite

Our Commitment

Whether you’re looking to replace an existing electrical top drive service loop or are in the market for a new one, Charter Industrial as the expertise and experience to provide you with a solution that meets your specific needs. Trust in Charter Industrial’s electrical top drive service loops for reliable, high-quality performance that you can count on.

Looking for the Highest Quality Hydraulic or Electrical Service Loops Backed with Industry Leading Warranty?