Sai Engineering manufactures industrial spiral stairs which can be used for interior or exterior use. There are various applications for industrial spiral staircases including mines, silos, oil platforms, and more. Industrial Spiral Staircase Applications Replacing Cage Ladders – No harnesses needed or clipping to ladders when using spiral stairs Crane Access – Gantry, pivot or stationary pedestals – spiral stairs can be designed for all crane access Sewage Treatment Plants – Galvanized spiral stairs serve these plants well Dams – Spiral stairs can make tall spans with multiple exit points Mines – Short or tall elevation changes, spiral stairs confirm to OSHA standards Silos – Inexpensive and easy to install, spiral stairs with catwalks can link silos saving space and money Plants – Interior or exterior, welded spiral stairs are durable and practical Wet Sumps – Submerged spiral stairs can be produced in aluminium or stainless steel Oil Platforms – Ships or rigs, Monkey Board to the Moon Pool, spiral stairs are used with limited space Ships – New construction or remodels, spiral stairs can be designed for any ship layout Maintenance Access – Roof access to underground service panels, spiral stairs will get you there Tanks – Spiral stairs are much less expensive than conventional curved stairs Military – Submarine maintenance at port – spiral stairs drop into missile ports for maintenance Spiral Ladder Spiral Ladder Spiral Ladder Spiral Ladder Spiral Ladder