The SI-HDT-C-range utilises top-class engineering for you to work safely and efficiently in an electrifying environment. With a working height of up to 2019 feet, the insulated aerial platforms are designed for work at sub-transmission and transmission lines up to 765 kV. The Bronto SI-HDT-C platforms have a combined cage and material handling load up to 1750 lb and the easy-to-use and precise Bronto+ control system to keep you operating safely and efficiently.

An aerial platform is a long-term investment. Our lifecycle services ensure your aerial platforms are kept in the best possible shape for years and decades to come.

Read more about our service offerings

Key benefits

  • Designed for work at sub-transmission and transmission lines up to 765 kV (ANSI A92.2).
  • Enable bare-hand maintenance, inspection and repairs while the line is energized.
  • Part of the boom is of high strength fiberglass and inside it runs the fiber optic control system.
  • Desiccants inside the boom control internal atmospheric humidity.
  • A sharp-edge corona ring around the boom provides consistent voltage gradient along the length of the boom.
  • A separate fiber optic intercom system provides communications between the cage and turntable control station.
  • Boom leakage detector indicating the actual current.


Various options, e.g.:

  • Remote control system enabling the work platform to be positioned onto the energized conductor safely from the ground.
  • Material winch for the cage
  • Pressurized water line can also be integrated for insulator washing

140 ft156 ft169 ft196 ft219 ft
77 ft79 ft79 ft85 ft88 ft
800 / 1000 lbs800 / 1000 lbs800 / 1000 lbs800 / 1000 lbs800 / 1000 lbs
13' 6" *13' 6" *13' 6" *13' 6" *13' 6" *
42' 7" *43' 7" *44' 4" *44' 4" *48' 6" *
63,000 lbs*70,500 lbs*70,500 lbs*79,000 lbs*90,000 lbs*
*depending on chassis

Technical data and illustrations subject to change without notice.

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