The advanced storage systems at the Chicago Field Museum were installed by Bradford Systems Corp. and achieve the overriding goal of protecting history. The High Density Mobile Storage (HDMS) units in particular feature a host of enhancements designed specifically to protect collections. These include synchronous drive carriage systems to guard against vibration without compromising efficient use; customized drives that provide balanced movement even under unbalanced loads; reduced gear ratios for controlled movement; recessed anti-tip rails to provide stability; all-wheel guides; and inert paint finishes. The systems are rated to accommodate objects as long as 25 feet and weighing up to 12,500 lbs. The HDMS units feature offset carriage controls for ease of forklift access.
Additionally, the systems in the wet collections area feature leak detection sensors within the rails. This thoughtful approach was a major undertaking and a major storage success story!