Protecting VFD-Driven Motors In: Container Port Cranes Electro Static Technology | 1-866-738-1857 | www.est-aegis.com Grounding Ring Solves Chronic Bearing Damage In Crane Motors at Container Ports At the Pacific Container Terminal in Long Beach, California, huge cranes lift boxcar-sized containers, arranging them neatly on trains, trucks, and the decks of ships. If the cranes are not working, the whole process shudders to a halt. SSA Marine

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