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Treyline Supply & Mfg. Company LLC specializes in Manufacturing Rotary Phase Converters, Enclosed Variable Frequency Drive (VFD) systems, and Custom Motor Starters. Treyline also buys and sells surplus inventory and equipment across the world!

Treyline Supply & Mfg. CO. manufactures top of the line EIM (Energy In Motion) Rotary Style Phase Converters, Enclosed Fan Cooled EIM VFD systems, and Custom Enclosed Motor Starters. All EIM products are UL508A rated, meeting the highest standards in the industry!

Top of the line Rotary Phase Converters and Custom Outdoor fan cooled vfd systems manufactured in the U.S.A. Check out more info by clicking the tabs above.