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Milling Center Model

Makino G7
5-Axis Horizontal Machining and Grinding Center

Makino G7 5-Axis Horizontal Grinding and Milling Center

Makino 5-Axis Horizontal Machining And Grinding Center

The G7 5-axis horizontal machining and grinding center is a single-platform solution for grinding, drilling and milling of aerospace blades, vanes, turbine disks and other complex grinding applications. Its multifunctional configuration paired with 5-axis capabilities enables aerospace manufacturers to eliminate setups, work in process, stack-up errors, and fixture costs. It also simplifies the manufacturing process with NC-controlled intermittent dress.

Similar to Makino's G5 5-axis horizontal machining center, the G7 employs a 12,000-rpm HSK-63A spindle capable of handling tough-to-cut materials, such as inconel. The machine provides X-, Y- and Z-axis travels of 690mm by 650mm by 730mm, respectively, accommodating workpieces with a maximum diameter of 535mm. This ability enables machining of parts one size larger than the G5, such as super-heat-resistant jet engine parts, curvic couplings and vanes (NGV). Its infinite C-axis rotation and maximum B-axis rotation of 270 degrees offer full access to three-dimensional parts for single-setup production capabilities.

A unique two-axis Programmable Coolant Nozzle (PCN) lets the G7 accommodate variations in wheel diameter and changes in cutting direction while maintaining ideal coolant flushing conditions. It also allows for intermittent rotary dressing, an NC-controlled, electrically powered feature that trues the wheel to reestablish profile geometry on the cutting wheel. Combined use with the standard 60-tool capacity automatic tool changer enables continuous operation to be performed, maximizing throughput.



5-Axis Horizontal Machining and Grinding Center
Machine Type: Machining Center
Num. of Axes: 5
Work Support: Table
Column Construction: Single Column Style: Travelling
Operation Type: CNC
CNC Brand: Professional 5
Table Size L x W (in.) 9.840 x 9.840
Max. Workpiece Weight (lbs) 264
Dual Axis Table: Standard
Num. Main Spindles 1
Orientation Horizontal
Taper #40    Opt. HSK-63A
Top RPM 12,000
Horse Power (30 min rating) 33.00
# Speed Ranges 1
Type Fixed
Primary Tool Carrier(s) ATC
Number of Tools 60    Opt. 180
Tool Change Time C-to-C (sec) 2.19   0.90 sec tool-to-tool
Max. Tool Length (in.) 14.200   Opt. 16.530
Max. Tool Weight 24.00
Number of Axes: 5
Travel Max Feed Rapid Rate
X1 Std. 27.100 in. 1,572 ipm 1,690 ipm
Y1 Std. 25.590 in. 1,572 ipm 1,690 ipm
Z1 Std. 28.740 in. 1,572 ipm 1,690 ipm
B1 Std. 270.000 deg
C1 Std. 360.000 deg
Machine Dimensions (l x w x h)(in.) 113 x 174
Machine Weight (lbs) 22,660
Spindle Nose To Table (Max) 33.800
Spindle Nose To Table (Min) 5.110
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