New Variable Frequency Drive (VFD) and VFD Plus kits from Servo

SERVO Products Company (Eastlake, OH), a progressive designer and manufacturer of a broad line of manual knee-type milling machine accessories since 1964, recently introduced designer and manufacturer of a broad line of their new Variable Frequency Drive (VFD) and VFD Plus kits which are full-featured packages designed to convert older step pulley mills and variable speed mills from mechanically controlled speed, into an electronically controlled machine.

The complete VFD kits are “plug-and-play” solutions that are easy to install and easy to operate–quickly upgrading a mills reliability, versatility, and productivity with smoother variable electronic speed control. Notably, both VFD kits feature a red E-Stop button that milling machines typically do not have. There is also an E-Stop safety circuit to prevent accidental start-ups.

• (50-500 RPM & 500-5,000 RPM)
• torque throughout the entire RPM range
• Sensorless vector control
• Includes all mounting hardware
• Spindle rotation is always correct
• Bright Blue LED Display that is truly accurate in both gear ranges
• 10 Turn potentiometer for accurate speed control
• Integrated dynamic braking resistor for quick forward/reverse changes (like tapping applications)
• There is a window to view the VFD status

Made in the USA, both VFD kits are also suited for smaller garage/machine shops, mills, lathes, and grinders.
Adaptable to most applications, the VFD kits can run the motor on 220V single-phase incoming power vs. requiring three-phase power–eliminating the need for a phase converter convenient package, it can go up to 5,000 RPMs in high gear–10-15% higher than the standard milling. Providing all the torque you need in a machine could do. Unlike early VFD kits, these provide full-torque at the lowest RPM.