I would like people to know there is a new type of lift system to move people and materials from the bottom to the top and top to the bottom of wind turbine towers. The name of the company is Suspended Climbing Systems (http://WWW.suspendedclimbingsystems.com). Mr. Sam Franklin has designed a new system using steel roller chain instead of cable. The new lift systems offers greater payload capability and offers flexibility in cage dimensions and works great in turbines 1.5 MW and over in capacity.
Sam Franklin: (918) 698-2426