February 4, 2026 - Wolong Electric America, a global manufacturer of industrial motors engineered for demanding applications, has expanded its Quantum™ motor platform with the introduction of the Quantum 500 Frame Medium Voltage Motor. Developed to replace a legacy design, the new motor delivers higher power density, improved structural rigidity, and greater installation flexibility.  

The Quantum 500 serves a broad range of industries and applications, including oil and gas, petrochemical processing, mining, pumping systems, and compression equipment. By modernizing the platform, Wolong Electric America has aligned frame sizes, ratings, and footprints with current industry standards, allowing the Quantum 500 to function as a true drop-in replacement for both existing Wolong Electric America installations. 

At the core of the design is a significantly more rigid motor structure. The Quantum 500 shifts the motor’s natural frequency at least 15 percent away from the operating range, reducing the risk of resonance under a wide variety of mounting conditions. This was achieved through increased frame and end shield stiffness, a redesigned stator-to-frame interface, and a move from a single piece core to an interconnected multi-plate core design that improves support and vibration control.

Additional structural improvements include a larger shaft diameter, expanded from 5.23 inches to 6.8 inches, along with reduced bearing center distances. Together, these enhancements increase shaft stiffness and help the motor perform reliably on rigid bases, flexible skids, and other installation configurations commonly encountered in API influenced environments.

The Quantum 500 also introduces greater mechanical and installation flexibility. The motor is fully bidirectional, with conduit box orientation that can be changed in the field from F1 to F2 without requiring shop rework, which helps reduce downtime and simplify maintenance. Select frame sizes are available with deep flange designs that support cantilever mounting, enabling use in applications such as screw and reciprocating compressors where footless motor configurations are required. Designed for medium voltage operation below 7 kV, the Quantum 500 is available in WPI and WPII enclosures and supports a wide horsepower range across multiple pole configurations. Bearing systems are designed to meet industry guidelines, with calculated bearing life exceeding 100,000 hours, while the motor insulation system supports an expected service life of up to 30 years under normal operating conditions.

The Quantum 500 Frame Medium Voltage Motor is suitable for a wide range of industrial applications, including pumps, compressors, mining equipment, and petrochemical processing systems, and can be customized to meet specific application requirements while maintaining standard footprints and mounting interfaces.

For more information, visit www.wolongamerica.com. 

About Wolong Electric America

Wolong Electric America is a trusted leader in industrial motor and drive technology, manufacturing GE-branded NEMA and Above NEMA motors engineered for the world’s most demanding environments. With more than 130 years of legacy innovation inherited from General Electric, Wolong combines time-tested engineering with modern manufacturing to deliver reliable, high-performance motor solutions across a wide range of industries. From oil and gas to power generation, mining, and beyond, Wolong’s motors are built to withstand harsh conditions while maximizing efficiency, longevity, and uptime. Headquartered in Houston, Texas, Wolong Electric America continues to drive industrial progress with a commitment to quality, customization, and customer success. Visit WolongAmerica.com.