Mechanical characteristics: The three-axis adopts a high-performance slide rail design, providing high-speed and stable cutting supply. The unique design ensures that the thermal deformation of the head is consistent with the Y-axis and can be automatically compensated. The spindle head is a heavy box structure with reinforced internal ribs and high rigidity. Using C3 grade precision roller screws combined with precision nuts and tail end pre tensioning devices to ensure that the thermal deformation of the body's back clearance reaches the lowest value. The G-type machine adopts a heavy cutting gear type spindle head, which is a full tooth high and low two-stage variable speed transmission. All imported gears used are made of chromium steel alloy material. Made by infiltration solution hardening treatment and JIB-0 grade precision grinding, the spindle head adopts dual cooling inside and outside to ensure the long service life and machining accuracy of the gearbox bearing gear.