Variable Spindle Speed Computer Control for CNC Jr. PLUS or the CNC Supra Mill

The optional variable spindle speed control allows you to power on/off and select any speed through the MASTER software. This feature becomes very useful for the user needing automated control of the spindle speed. This feature will save the user time from having to stop the tool path program in order to manually adjust the belt and pulley to obtain a different desired spindle speed. The control is a three phase power inverter and requires 240VAC single phase power to operate. The belt and pulley system are kept on your machine for added convenience of changing the torque on the spindle. For example, the user needs a very low spindle speed which he can get using the variable feature, but the user also needs a high torque; adjusting the belt will give the user the extra flexibility of adjusting the torque on the spindle if the need of adjusting the torque should ever arise. The variable spindle can now also be powered on/off and maintain speed control through the Master Software or Hand Held Remote Control while having the motors disengaged to manually machine a simple part if needed.

Both the CNC Jr. PLUS and CNC SUPRA with "computer controlled variable spindle" is powered on single phase 240 vac. (The CNC Baron comes standard with computer variable spindle.)