Makino G7
Image: makino.com, Makino
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Tool Capacity
Rapid Traverse
How much does the Makino G7 cost?
Estimated price range
Our best estimate for a cnc grinding machine in this class — not a quote from Makino. Configuration moves it a long way.
Overview
The Makino G7 is a grinder built on a 5-axis horizontal machining center, able to grind, mill, drill and tap on one machine. Makino aims it at aerospace turbine blade-and-vane grinding, naming Inconel, nickel-based alloys and root-form grinding. Travels are 690 mm (27.2 in) in X, 650 mm (25.6 in) in Y and 730 mm (28.7 in) in Z over a 250 mm (9.8 in) pallet, with a 12,000 rpm spindle.
Root-form work shows why the combination matters. Grinding the root and milling the other features of a blade in the same clamping keeps the root located to the rest of the part, and avoids moving the blade between a grinder and a machining center. Makino presents the gain as removing out-of-cut time and running several operations in one setup.
The Makino G5 travels 520 x 560 x 600 mm (20.5 x 22.0 x 23.6 in); the G7 is larger on every axis while keeping the same 250 mm (9.8 in) pallet. The listed work envelope grows to 535 Ø x 400 SR, while the weight limit stays at 120 kg (265 lb). The extra Z also shows in tool length: 420 mm (16.5 in) with an HSK shank against 400 mm on the G5, with 360 mm (14.2 in) on CAT for both.
B swings 270° (-90° to +180°) and C rotates 360°. Rapid and cutting feed are 48,000 mm/min (X,Y) & 43,000 mm/min (Z) (1,890 ipm (X,Y) & 1,693 ipm (Z)), so Z is a little slower than on the G5. The 60-tool magazine takes tools of 70 mm (2.8 in) diameter, or 220 mm (8.7 in) with limitation, up to 12 kg (26 lb). Wheel, dresser and coolant specifications are not in Makino's short table.
Full Specifications
| Parameter | Value |
|---|---|
| Pallet Size | 250 mm (9.8 in) |
| X-Axis Travel | 690 mm (27.2 in) |
| Y-Axis Travel | 650 mm (25.6 in) |
| Z-Axis Travel | 730 mm (28.7 in) |
| B Axis Range | 270° (-90°to +180°) |
| C Axis Range | 360° |
| Max Spindle Speed | 12,000 rpm |
| Rapid Traverse Rate | 48,000 mm/min (X,Y) & 43,000 mm/min (Z) (1,890 ipm (X,Y) & 1,693 ipm (Z)) |
| Cutting Feedrate | 48,000 mm/min (X,Y) & 43,000 mm/min (Z) (1,890 ipm (X,Y) & 1,693 ipm (Z)) |
| Max Workpiece Size | 535 Ø x 400 SR |
| Max Workpiece Weight | 120 kg (265 lb) |
| Tool Capacity | 60 tools |
| Max Tool Length Cat | 360 mm (14.2 in) |
| Max Tool Length HSK | 420 mm (16.5 in) |
| Max Tool Diameter (full magazine) | 70 mm/220 mm * * with limitation (2.8 in/ 8.7 in * * with limitation) |
| Max Tool Weight | 12 kg (26 lb) |
Specifications sourced from makino.com — verified 2026-10-02
Strengths & Limitations
Strengths
- Grinding, milling, drilling and tapping on one machine, which Makino aims at turbine blade-and-vane work
- Named by Makino for Inconel, nickel-based alloy and root-form grinding
- 690 x 650 x 730 mm (27.2 x 25.6 x 28.7 in) travels and a 535 Ø x 400 SR envelope
- HSK tools up to 420 mm (16.5 in) long, against 400 mm on the smaller G5
- 270° (-90° to +180°) B-axis and 360° C-axis for multi-face access in one setup
Limitations
- Workpiece weight is capped at 120 kg (265 lb), the same as the smaller G5
- Z-axis rapid and feed drop to 43,000 mm/min (1,693 ipm) from 48,000 mm/min (1,890 ipm) on X and Y
- No grinding wheel, dresser or coolant data in the table
- Tools over 70 mm (2.8 in) in diameter are allowed only with limitation, up to 220 mm (8.7 in)
Best For
Frequently Asked Questions
01
Makino names Inconel grinding, nickel-based alloy grinding, root-form grinding and other materials common to aerospace turbine blade-and-vane grinding operations. The machine also mills, drills and taps, so a part can go from milling to grinding without leaving the machine.
02
Choose by part size. The Makino G5 travels 520 mm (20.5 in) in X, 560 mm (22.0 in) in Y and 600 mm (23.6 in) in Z. The G7 has 690 x 650 x 730 mm (27.2 x 25.6 x 28.7 in), a 535 Ø x 400 SR envelope and 420 mm (16.5 in) HSK tools. Both share the 250 mm (9.8 in) pallet, 12,000 rpm and 120 kg (265 lb) limit.
03
Rapid traverse and cutting feed are the same: 48,000 mm/min (1,890 ipm) on X and Y, and 43,000 mm/min (1,693 ipm) on Z. Z is the slower axis, which matters most on long Z-direction strokes.
04
60 tools, each up to 12 kg (26 lb). Diameter is 70 mm (2.8 in), or 220 mm (8.7 in) with limitation. Maximum length is 360 mm (14.2 in) with a CAT shank and 420 mm (16.5 in) with HSK.
