VAC-MFL7.5/5.5R

The Okuma VAC-MFL7.5/5.5R spindle motor is a high-performance solution from the esteemed VAC Servo Motors series by Okuma. Featuring a Continuous Output Power of 5.5 kW and a Rated Output Power peak of 7.5 kW for 30-minute intervals, this AC spindle motor is engineered for demanding CNC applications. Designed to operate on a Rated Voltage of 380 V AC (3-phase) and comply with a Duty Cycle of Continuous, it maintains stable performance throughout extended production runs. The motor draws current appropriate for its power rating and operates efficiently at a Frequency of 50/60 Hz, ensuring seamless integration with global power standards. With a robust Cooling Method of Air cooled architecture, the VAC-MFL7.5/5.5R delivers consistent thermal management, optimizing operational uptime and minimizing the risk of overheating. Its compact, Built-in Mounting design simplifies installation in space-constrained machine tool environments.

Performance characteristics of the VAC-MFL7.5/5.5R are driven by its precision-engineered rotor-stator assembly and advanced electrical configuration. Operating speeds of 1500/6000 rpm enable both low-speed torque-intensive tasks and high-speed finishing cycles. The motor’s Efficiency rating of IE3 contributes to lower energy consumption and reduced heat generation under load. Constructed as an AC Spindle Motor with a high-grade insulation system, it delivers stable torque output even during peak power demands. Integration with specialized drive controllers facilitates precise control over torque, speed, and positioning, while large-die IGBTs in the accompanying power circuit minimize switching losses. Compliance with stringent Industrial safety standards ensures that the motor meets global regulatory requirements and maintains safe operation in automated production lines.

Built for reliability in harsh industrial environments, the VAC-MFL7.5/5.5R operates comfortably up to a Max Ambient Temperature of 40°C, maintaining performance consistency in typical workshop conditions. Its rugged 67 kg construction underscores Okuma’s commitment to durable design and long service life. The motor’s air-cooled configuration allows for straightforward maintenance and rapid heat dissipation, reducing downtime for thermal management. When paired with Okuma’s CNC controllers and ancillary automation systems, this spindle motor excels in applications such as milling, drilling, and high-precision machining. Ideal for manufacturers seeking a seamless blend of power, precision, and reliability, the VAC-MFL7.5/5.5R stands as a testament to Okuma’s dedication to advanced industrial automation solutions.