Large Diameter Slip Ring Assembly for the Watervliet Arsenal/Benet Labs

The Department of the Army Materiel Command Contracting Command Detroit Arsenal seeks procurement of one large diameter slip ring assembly for Watervliet Arsenal/Benet Labs, with proposals due July 3. This is a sole source procurement with the Sibley Company.

Place of performance is Watervliet, New York. The slip ring assembly must connect power and data communication circuits to electromechanical hardware on a rotating structure capable of continuous 360-degree rotation at nominal speeds of 5 RPM with a maximum operating speed of 10 RPM. Key dimensional specifications include a 550 mm bore diameter mounting brace, 650 mm inner diameter conductor ring section, 1000 mm maximum outside diameter, and 40 mm maximum assembled thickness. The assembly consists of two matched split ring halves with four conductor rings for 240VAC/3-phase power at 75 amps and eight conductor rings for EtherCat data communication at 100 Mbps. Radial and axial runout must not exceed 1.0 mm maximum with nominal tolerances of 0.1 mm. Brush block stand-off distance is 2.5 mm with spring-loaded silver-graphite contactors. Delivery must be completed within twenty-four weeks from date of award. The contractor shall deliver the complete assembly with two power circuit and two data/communication circuit brush block assemblies, all wires and cables (power wires minimum 12 AWG, communication wires 22 AWG, minimum 1.5 meters length), hardware, and spare components, along with a certificate of compliance, instruction and maintenance manuals, and technical drawings and 3D models. A standard commercial warranty including onsite service warranty for a minimum of one year from installation date and free technical support is required. Final acceptance occurs at Watervliet Arsenal/Benet Laboratories upon inspection completion. The NAICS code is 332999, All Other Miscellaneous Fabricated Metal Product Manufacturing, and the PSC code is 5365, Bushings, Rings, Shims, and Spacers. This effort is unclassified.