Our spindle is rated at 1.5KW, 110V which can run off North American household outlets. We recommend keeping the spindle power between 1.5-3.5KW. If you reach 2.2KW or above, you will need to install extra 220VAC wiring to support this. Furthermore, ensure that the spindle body is 80mm or smaller in diameter so that it could be mounted onto the AltMill as-is or with your own shimming. The AltMill comes with an 80mm spindle mount, whether you purchase the Spindle Kit or not.
Please be aware that our customer support team cannot provide troubleshooting on other companies’ spindles and VFDs.