Mori Seiki's original technology, DCG® (Driven at the Center of Gravity). This controls vibration, the main factor preventing high speed and high precision, by pushing structural components at their center of gravity with a twin drive using 2 ball screws.
Restricting vibration
For positioning, machines with DCG® virtually eliminate vibration, while machines without DCG® continue to vibrate for a long time. It controls the rotational vibration which appears at every acceleration start point, and which is proportional to the distance between the drive point and the center of gravity. This prevents deterioration of the quality of the machined surface. achining by advanced
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 Machining by DCG® Advanced Technology |
 Machining by a Conventional Machine |
Outstanding acceleration performance
Machining by advanced DCG® technology generates little vibration at the beginning of acceleration, and it is possible to accelerate with maximum force from the very start.
Improved roundness
DCG® also minimizes the vibration that comes from changes in the direction of travel. This significantly improves roundness in circle cutting.
A DDM™ (Direct Drive Motor) has been adopted for arbitrary indexing specifications (Option), making high precision and smoothness of movement possible due to the high speed it produces and the elimination of backlash.
A “built-in” milling motor structure has been used, with the motor located in the turret, reducing heat generation and vibration to a minimum level and improving transmission efficiency. Cutting ability, speed, surface quality and precision have all been.
Milling capacity
It boasts milling capabilities virtually indistinguishable from that of No. 40 taper machining centers. When milling with Turret 2, the tool spindle does not lose power even during heavy-duty cutting, improving productivity and achieving integration of processes.
Rotary-tool holders (Option)
We have adopted a rotary tool holder with high rigidity. In conventional machines, an increase in depth of cut commonly causes vibration, but by using a construction where the load is dispersed equally on the left and right sides of the tool tip, a depth of cut of 20 mm (0.8 in.), equal in size to the tool diameter, has been made possible.
The opposing side length of 400 mm (15.7 in.) surpasses bridge-type machining centers. In addition, by making the ram a perfect octagonal shape, a V-shaped guideway produces superior straightness.
A DDS (Direct Drive Spindle) motor has been adopted for both the tool spindle and the rotary tool spindle. This system directly rotates the spindle without requiring gears and belts, reducing vibration while displaying high output.
Tool Spindle
By building the spindle motor into the turret, the weight and size of the entire spindle has been reduced. Additionally, a max. spindle speed of 12,000 min-1, significantly faster than that of conventional machines, has also been made possible.
Rotary tool spindle
The rotary tool spindles also employ the DDS (Direct Drive Spindle) motor, which does not require gears or belts, making high-speed and high-efficiency machining possible. A maximum spindle speed of 6,000 min-1 significantly surpasses that of conventional models, and spindle acceleration time is 0 to 6,000 min-1 in 0.23 seconds, greatly reducing non-cutting time.
