This document describes a heavy duty 4-axis CNC router machine with a working area of 1600x1800mm or 1500x3000mm, 1000mm maximum height, positioning accuracy of ±0.02mm over 300mm, and repeatability of ±0.02mm over 300mm. It has AC servo motors for 3-axis control, a 4.5kW spindle motor, and can operate at speeds up to 45m/min while consuming less than 4.2kW of power running on 380V 3-phase or 220V 3-phase electricity. The machine is controlled by a Syntec PC platform and compatible with common CAM software packages.