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25 hp rotary phase converter cnc, air compressor, saw


25 HP CNC/Heavy-Duty / All Purpose Rotary Phase Converters
3 Precision CNC Voltage Balance... can run even the most sensitive equipment
4 Custom Baldor Idler/Generator... Purpose-built for phase conversion
5 Motor Integrated Soft Start... 1/3 the starting current of other phase converters
6 Power Guard Protection... for Brown outs & current surges after power loss
9 Double sealed windings... Operate in the harshest of environments
Precision Voltage Balance (CNC Compatible)
Double Sealed Windings & Bearings
Click on the icon to listen how Quiet our 25 HP Converter is!
Or the following CNC, Resistive & Current loads:
CNC (vfd spindle & servo controls) total combined current
Use 50% of the converters Full load Current to maintain a 5% voltage balance
For CNC application double the converter hp and use at least a 7.5 hp Converter.
CNC / Heavy Duty / All-Purpose
* start capacitance is a good measure of soft start. A standard 3-phase motor used as an idler will take 3 to 4 time the capacitance and current.
* both load and idler are wired into control panel
We have engineered a finely tuned Idler/Generator made by Baldor Electric. It has the benefit of solid state winding integrated Soft Start, precision windings for the best voltage balance, and wound with wire that is designed to withstand the downstream voltage spikes that some CNC and VFD controlled equipment send back through the line. These features are only found on American Rotary Idlers
Save money with American Rotary's built-in motor starter and automatic controls. The converter will start automatically at the touch of the "START" button and is conveniently pre-wired for remote start and time delay. Shown: cut-a-way of the back of one of our Rotary Phase Converters shows how the starter ties into the bus bars used for power connections.
Double Sealed ISR Wire Windings
Double Sealed Windings and ISR Magnet Wire make for a bullet proof Idler. Safe from Dust and metal chips, as well as from Voltage spikes from VFD and CNC equipment, our rugged custom made Baldor Idlers have proven so reliable that we gave the rotors a lifetime warranty! (see full warranty for details)
Every phase converter goes through a series of bench tests to make sure it is with in spec. We voltage balance our converters so that voltage sensitive equipment and significantly smaller loads will not see unbalanced currents. Among the tests done are line to line voltage balance, power-factor, phase shift, synchronous time constant (start time)
We put extra effort into making sure our components can withstand the demands of continuous phase conversion. This often means Thicker materials, tighter tolerances, and better quality control. The capacitor cores in the picture are being wound with a film that makes their voltage rating higher than normal because phase converters can often see higher voltages in startup.
Separate Control Panel & Idler/Generator
UL states that all control panels must be isolated from vibration and external heat sources. It is bad practice to mount a control panel directly to an idler motor for those reasons. Our control panels are designed to be mounted separately from the idler. This extends the life of the control panel by allowing components to be vibration free and extends the life of the idler by allowing it to cool properly.
The picture to the right is a Motor Start Capacitor. They determine the in-rush current when starting a rotary phase converter. Our Rotary phase converters start so easily (softly) that we only need 1/3 the capacitance of any other phase converter. Capacitance is a good measure of Soft Start.
When you upgrade your equipment, you can upgrade your American Rotary phase convert too. We have added special connections that make for easy "paralleling" of your rotary phase converter. Example: Turn a 10HP into a 20HP with the simple throw of a lever!
Push Button Start/Stop Switch with ON indicator Lamp & Power Guard Protection
Easy light touch ON and a Safety Raised OFF button for simple control of your 3-phase power.
The same switch controls the three wire latching circuit which assures that the converter will turn off and not restart when the power is restored.
Our converters are designed and tested to a audible noise level of less than 66db. This is a normal conversational voice db level. You can listen to this converter's sound by clicking on the link just below the thumbnail pictures above in the "Additional Resources & Information" section.
(Click Here for More Pictures)
If you need your converter to start when a pump calls for water, or a compressor calls for air? Our DIN rail mounts allows easy timed functions to be seamlessly added for automatic or unattended operation of you Rotary Phase Converter.
Physically balanced to better than twice the NEMA required balancing specs. Our Baldor Idler/Generator rotors are so tough, we gave them a lifetime warranty. Since 1991 we have never had a failure.
American Rotary has been around since 1991. We continue to lead the Industry in rugged, reliable Phase Converters. We also lead the field in innovations such as Soft Start, Bus Bar Connection, Voltage Balance and Integrated Starters.



25 hp rotary phase converter cnc, air compressor, saw