GF Machining Liechti go-Mill 350
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Weight
Rapid Traverse
Spindle Power
Overview
The GF Machining Solutions GF Machining Liechti go-Mill 350 is a compact 5-axis from the Liechti blade family for individual turbine blades, vanes, and airfoils. Part dia: 350 mm (13.8 in), workzone: 505 mm. Target: smaller compressor blades and guide vanes.
The go-Mill series is Liechti’s platform for individual blade machining — handling complex airfoil geometry at high speed with absolute repeatability.
Spindle: 36,000 RPM HSK-E50 optimized for small ball-end mills. 25 kW (34 hp), 40 Nm torque for superalloy roughing and finishing.
Turbosoft+ CAM provides blade-specific strategies for thin-wall deflection and airfoil curvature. Siemens 840D sl for complex 5-axis interpolation.
Compact footprint for automated blade cells with robotic loading. Pricing: approximately $800,000 - $1,200,000.
Full Specifications
| Parameter | Value |
|---|---|
| Max Part Diameter | 350 mm (13.8 in) |
| Workzone Length | 505 mm |
| Number Of Axes | 5-axis simultaneous |
| Max Spindle Speed | 36,000 RPM |
| Spindle Taper | HSK-E50 |
| Spindle Motor Power | 25 kW (34 hp) |
| Spindle Torque | 40 Nm |
| Tool Capacity | 30 |
| Rapid Traverse Rate | 50 m/min (1,969 ipm) |
| Positioning Accuracy | 0.002 mm (2 µm) |
| Cam Software | Liechti Turbosoft+ |
| CNC Control | Siemens Sinumerik 840D sl |
| Coolant System | High-pressure through-spindle (80 bar) |
| Machine Weight | 8,000 kg (17,637 lb) |
| Max Turning Diameter | 350 mm |
| Max Turning Length | 505 mm |
Specifications sourced from gfms.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Compact purpose-built design delivers higher blade productivity per square meter
- 36,000 RPM HSK-E50 achieves superior airfoil surface quality
- Turbosoft+ provides blade-specific tool paths for all blade sections
- Compact footprint for automated multi-machine blade cells
- 80 bar through-spindle coolant for superalloy chip evacuation
- Siemens 840D sl for blade-to-blade repeatability
Limitations
- 350 mm part diameter limits to individual blade work — blisks require g-Mill
- Dedicated blade platform requires consistent volume
- HSK-E50 limits max tool diameter vs HSK-A63
- Turbosoft+ licensing and specialized programming required
Best For
Frequently Asked Questions
01
go-Mill: individual blades, 36,000 RPM, HSK-E50. g-Mill: complete blisks, 30,000 RPM, HSK-A63.
02
Yes — fir-tree, dovetail, airfoils, platforms, tip shrouds in single setup.
03
Compressor blades: 15-45 min. Larger turbine blades: 1-3 hours. Automated cells: near-continuous.
04
Robotic loading, pallet systems, in-process probing, post-process measurement. Turnkey cell solutions available.
Videos
Liechti Engineering
United Machining (USA)
Kinner Manufacturing
United Machining (USA)
Community Discussions
Pricing and buying discussion — 5 axis and pallet pool, who competes with Haas?
Troubleshooting and problem-solving — practicalmachinist.com/forum/threads/237-spindle-following-error.315513
Links to community discussions. Summaries are editorial — visit the original thread for full context.
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