Manntech Install Replacement BMU in San Francisco, California

555 California Street, San Francisco

Manntech install replacement BMU system to 555 California Street Building formally known as the Bank of America.

Project Details

  • Building height 260m
  • 52 story’s high
  • Originally built 1969

System Details

  • 9.2 telescopic BMU
  • Unique 8m cradle with central pivot point to follow façade profile
  • 6 x 14mm diameter suspension ropes
  • 270kg safe working load
  • BMU component size to suit Derrick crane installation
  • 2100mm gauge
  • rack and pinion traverse system


  • Fully animated in 3D for incorporation of master drawing