Due to its high spindle speed, high feed speed, and high feed acceleration, high-speed machining centers inevitably require their structural design to have high static and dynamic rigidity. For this reason, some separate the hydraulic device from the spindle to reduce the impact of vibration on the spindle accuracy.

The equipment structure is completely thermally symmetrical, which can avoid the displacement of the spindle from the workpiece due to thermal deformation. To prevent thermal imbalance caused by chips, which are important heat sources, some are designed structurally so that chips do not stay on the processed workpiece or tray. Additionally, spiral chip conveyors on both sides of the Z-axis cover are used to quickly discharge chips into the cutting fluid tank, minimizing the thermal impact caused by chips.

To ensure the rigidity and stability of motion, the design of high-speed machining centers usually follows the following principles:

(1) The force exerted on each axis is always on the axis of each center of gravity to avoid swinging of the equipment structural components during acceleration and deceleration.

(2) The guiding device of the moving component is also located on the center of gravity plane to stabilize the structure of the equipment and avoid swinging of the structural components during acceleration and deceleration.

(3) Adopting component inlay structure and improving the processing technology of components to reduce the weight of moving parts.

(4) Each axis measurement is conducted at the thrust center to obtain the most accurate measurement results and stability with maximum positional repeatability.