The MS-4120 model belongs to the MS Series of Bridge-type Portal Milling Machines, engineered for optimal rigidity and precision. It is built to achieve an exceptional combination of speed and accuracy through its advanced transmission system, which includes a direct-driven X-Y device and a torque enlarger unit on the X-axis to boost transmission torque and precision. For stable movement, the machine utilizes heavy duty roller ways on the X and Y axes, offering low friction and high stiffness. A high stiffness, light-weight table design ensures high acceleration-deceleration performance, even when handling the maximum load of 12-000 kg.

The substantial working capacity includes an X-axis travel of 4-100 mm and a Y-axis travel of 2-000 mm, resting on a table measuring 4-000 mm by 1-800 mm. The Z-axis, which is equipped with Box ways, is managed by a sophisticated system of twin hydraulic cylinders plus a pressured nitrogen accumulator balancing design. This design allows for up to 0-5G acceleration and provides the critical feature of keeping the Z-axis at a holding position during power failure. With rapid traverse rates of up to 24 m-min on the Y-axis and a standard 18-5-22 kW spindle motor, the MS-4120 is a robust and highly capable solution for large part milling