Our Single Failure-Proof Crane (ULTRASAF) combines ACECO's experience building over 40 single failure-proof cranes for the Department of Energy, space launch, and commercial utilities into a 21st century NUREG 0554 hoisting system. ULTRASAF technology can be used in both the main and auxiliary hoisting systems. ULTRASAF is designed to eliminate load drop should any of the common hoisting failures occur. ULTRASAF integrates the following systems to produce the safest possible hoisting system:

Redundant Reeving

Redundant Hoisting Machinery

Triple Redundant Holding Brakes

Two Blocking Protection

Load Hang Up Protection

Overload Protection

Wire rope Mis-Spooling Protection

Flux Vector Frequency Drives

Seismic Design

Safety Related Procurement of Components Critical to Safety

ULTRASAF is built in accordance with our 10CFR50 Appendix B Quality Assurance program consistent with the requirements of NUREG 0554, assuring a licensable design.