Product Introduction of 75KW 4-pole 1400rpm Three-phase Asynchronous Motor

This 75KW 4-pole 1400rpm three-phase asynchronous motor realizes high-efficiency electromechanical energy conversion based on the electromagnetic induction principle. Three-phase alternating current is input into stator windings to generate a rotating magnetic field; when the magnetic field cuts rotor conductors, induced electromotive force and current are produced, and the generated electromagnetic torque drives the rotor to rotate. The rotor speed is permanently lower than the 1500rpm synchronous speed, featuring stable operation, high conversion efficiency and strong load-bearing capacity, serving as a core power unit for heavy-duty industrial equipment.

In structural design, premium components and exquisite craftsmanship ensure long-term reliable operation. The stator is laminated with cold-rolled silicon steel sheets to minimize iron loss and enhance energy-saving performance. Windings adopt high-strength electromagnetic wires, processed via vacuum pressure impregnation and high-temperature curing, reaching Class F insulation with excellent heat resistance, moisture resistance and insulation stability. It adopts a cast-aluminum squirrel-cage rotor with small moment of inertia and outstanding starting performance, suitable for frequent start-stop working conditions. The cast iron frame has high rigidity and good shock absorption; the integrated end cover and bearing seat guarantee high coaxiality, effectively reducing operation vibration and noise.

Its core performance parameters meet strict high-efficiency industrial standards. Rated power 75KW, rated pole number 4, rated speed 1400rpm with reasonable slip ratio for smooth and powerful output. Rated voltage 380V, rated frequency 50Hz, power factor ≥0.91, efficiency ≥94%, complying with high-efficiency motor norms to cut enterprise energy costs significantly. Locked-rotor torque multiple ≥2.0, maximum torque multiple ≥2.5, with strong overload capacity to cope with sudden load fluctuations. Default protection class IP54, customizable to IP55, with reliable dustproof and waterproof performance, adapting to dusty, humid and other complex industrial environments.

Widely applicable to fans, water pumps, conveyors, machine tools and compressors, it supports multiple mounting modes like B3 and B5. Without brush wear, it has convenient daily maintenance and long service life, providing stable continuous power support for industrial production.