Micro Gin Motor Control Center Upgrade

The USDA‑ARS Cotton Ginning Research Unit in Stoneville, MS is seeking a firm‑fixed‑price contractor to upgrade the motor‑control center of its “Micro Gin” research equipment. The work includes design, supply, installation, and commissioning of a new PLC/HMI console, replacement of motor starters and variable‑frequency drives, wiring, conduit, and integration with existing safety and pneumatic systems. The contractor must provide all documentation, train up to five USDA personnel, and complete the effort within a four‑month performance period. • Replace or add motor starters and VFDs for ~48 motors (≈400 HP total) per detailed motor schedule. • Provide and install a NEMA‑4 steel console with a PLC (approved families) and a ≥25″ Full‑HD HMI displaying ~50 motor stations. • Perform all wiring, conduit, testing, and commissioning; deliver manuals and train USDA staff; meet OSHA, NEMA, UL, and FAR requirements.