Manufactures 5-axis and 6-axis machining centers for turbine blades and blisks made of titanium and superalloys.
UNITED MACHINING Mill AG · LIECHTI
Langnau im Emmental (CH)New on Amplifa
About LIECHTI
LIECHTI, based in Langnau im Emmental, Switzerland, is a manufacturer of 5-axis and 6-axis machining centers for machining aerodynamic profiles. The portfolio includes the TurboMILL platforms for blades (Blade Machining) and g-MILL/go-MILL for rotors and blisks (Rotor Machining) with workpiece sizes from 350 mm to 2600 mm blade length or up to 1350 mm blisk diameter. The machines are complemented by the company's own CAM software Turbosoft PLUS, application-specific process technology with tooling and clamping fixtures, as well as automation such as bar feeders and part handling. The machines are designed for machining difficult-to-machine materials such as titanium, Inconel, Nimonium, titanium aluminide and high-alloy steels. The main industries are aerospace and power generation. Around 100 employees manufacture at the Langnau production site; worldwide the company employs about 120 people; in 2025 LIECHTI became part of United Machining Solutions (United Grinding Group).
- Site
- CH-3550 Langnau im Emmental
- Processes
- 5-axis and 6-axis milling of turbine blades (Blade Machining), 5-axis rotor/blisk machining (Rotor Machining), Complete blade machining in one setup: bar feed, 5-axis milling, turning,, Semi-finishing, finishing and complete machining of airfoil, hub and rim in one setup (blisk), Turbosoft PLUS CAM software for aerodynamic profile machining, Process technology / turnkey solutions incl. tooling, clamping fixtures, commissioning, On-machine probing and adaptive machining of welded blisks, Process development (tooling, clamping fixtures, commissioning)
- Materials
- Titanium, Inconel, nickel-based superalloys, Nimonium, titanium aluminide, high-alloy steels, turbine steel, special alloys (aerospace/turbine materials)
- Certificates
- ISO 9001, VDA 6.4, ISO 14001
- Founded
- 1865
- Employees
- approx. 120 worldwid
- Industries
- Aerospace, Power generation
- 01
Process technology (tooling, clamping fixtures)
- 02
Machine design
- 03
Machine manufacturing in Langnau
- 04
CAM programming Turbosoft PLUS
- 05
Commissioning & metrology
- 06
Training and support over the entire machine life cycle
Materials & Processes
Titanium
Target material of the ultra-dynamic 5-axis machining of blisks, impellers and blades.
Inconel / nickel-based superalloys
Standard materials for rotors and blades in aerospace and power generation.
Nimonium
Nickel alloy for demanding turbine components.
Titanium aluminide
Lightweight high-temperature material within the LIECHTI process spectrum.
High-alloy steels / turbine steel
Material for large power plant and turbine blades.
Sites
Langnau im Emmental
CHHeadquarters, production, technology center
- Part weight / size
- Blisk up to 1350 mm diameter, blades up to 2600 mm length
- Lot size
- Small series to large series (machine manufacturing, series-capable part
- Materials
- Titanium, Inconel, nickel-based superalloys, titanium aluminide, high-alloy steels
- g-MILL 850 / 1150 / 1350
- g-MILL 1000
- go-MILL 800
- go-MILL 350
- TurboMILL 500g
- TurboMILL 800g / 1400g
- TurboMILL 800i / 1400i
- TurboMILL 2000gx / 2600gx
- Turbosoft PLUS CAM
- Workpiece and tool measurement
Machines & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 5-axis and 6-axis milling of turbine blades (Blade Machining)Machining | 0.015 mm (blade accuracy TurboMILL 500g) · 0.4 µm (TurboMILL 500g) | 2600 mm | – | – | Titanium, Inconel, nickel-based superalloys, turbine steel, special alloys, titanium aluminide, high-alloy steels, Nimonium |
| 5-axis rotor/blisk machining (Rotor Machining)Machining | – | – | – | – | Titanium, Inconel, nickel-based superalloys |
| Complete blade machining in one setup: bar feed, 5-axis milling, turning,Machining | – | 1400 mm | – | – | Titanium, Inconel, nickel-based superalloys |
| Semi-finishing, finishing and complete machining of airfoil, hub and rim in one setup (blisk)Machining | – | 1350 mm (blisk diameter) | – | – | Titanium, Inconel, nickel-based superalloys |
| Turbosoft PLUS CAM software for aerodynamic profile machiningEngineering | – | – | – | – | – |
| Process technology / turnkey solutions incl. tooling, clamping fixtures, commissioningEngineering | – | – | – | – | – |
| On-machine probing and adaptive machining of welded blisksInspection | – | – | – | – | Titanium, Inconel, nickel-based superalloys |
13 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis rotor machining center | LIECHTI g-MILL 850 | – | Blisk diameter max. 850 mm; spindle 18,000/20,000 rpm, 166 Nm, 20 kW; HSK-A63/A80; 50/97/144 | – | Langnau im Emmental |
| 5-axis rotor machining center | LIECHTI g-MILL 1150 | – | Blisk diameter max. 1150 mm; spindle 18,000/20,000 rpm, 166 Nm, 20 kW; HSK-A63/A80 | – | Langnau im Emmental |
| 5-axis rotor machining center | LIECHTI g-MILL 1350 | – | Blisk diameter max. 1350 mm; spindle 18,000/20,000 rpm, 166 Nm, 20 kW; HSK-A63/A80 | – | Langnau im Emmental |
| 5-axis rotor machining center | LIECHTI g-MILL 1000 | – | Blisk/IBR max. 1000 mm diameter; spindle 18,000 rpm, 118 Nm, 25 kW, HSK-A80; 70/120 | 2020 (Einf | Langnau im Emmental |
| 5-axis rotor machining center | LIECHTI go-MILL 800 | – | Blisk/IBR/impeller max. 800 mm diameter; spindle 15,000 rpm, 120 Nm, 25 kW, HSK-A80; 40/92 | – | Langnau im Emmental |
| 5-axis blade machining center | LIECHTI go-MILL 350 | – | Blade length max. 500 mm, swing diameter max. 350 mm; spindle 20,000 rpm, 120 Nm, 36 kW, | – | Langnau im Emmental |
| 5-axis blade machining center | LIECHTI TurboMILL 500g | – | Blade length max. 500 mm (incl. holder), swing diameter max. 200 mm; spindle 20,000 rpm, | 2022 (Einf | Langnau im Emmental |
| 5-axis blade machining center | LIECHTI TurboMILL 800g | – | Blade length max. 800 mm, swing diameter max. 450 mm; spindle 16,000/19,000 rpm, 200 Nm, 28 | – | Langnau im Emmental |
| 5-axis blade machining center | LIECHTI TurboMILL 1400g | – | Blade length max. 1400 mm, swing diameter max. 450 mm; spindle 16,000/19,000 rpm, 200 Nm, 28 | – | Langnau im Emmental |
| 5-axis blade machining center | LIECHTI TurboMILL 800i | – | Blade length max. 800 mm, swing diameter max. 400 mm; spindle 20,000 rpm, 120 Nm, 25 kW, | – | Langnau im Emmental |
| 5-axis blade machining center | LIECHTI TurboMILL 1400i | – | Blade length max. 1400 mm, swing diameter max. 400 mm; spindle 20,000 rpm, 120 Nm, 25 kW, | – | Langnau im Emmental |
| 5-axis blade machining center (focus on power plant blades) | LIECHTI TurboMILL 2000gx | – | Blade length max. 2000 mm (incl. holder), swing diameter max. 700 mm; spindle 16,000/19,000 | – | Langnau im Emmental |
| 5-axis blade machining center (focus on power plant blades) | LIECHTI TurboMILL 2600gx | – | Blade length max. 2600 mm (incl. holder), swing diameter max. 700 mm; spindle 16,000/19,000 | – | Langnau im Emmental |
Additional services
Reference customers
Quality
All LIECHTI machines feature integrated workpiece and tool measurement; on-machine probing and adaptive machining compensate for dimensional deviations, for example on welded blisks. The company is certified to ISO 9001, VDA 6.4 and ISO 14001.
| Evidence | Langnau im Emmental |
|---|---|
| ISO 9001 | |
| VDA 6.4 | |
| ISO 14001 |
History
- 1865
Founded in Langnau im Emmental as a manufacturer of agricultural equipment.
- ca. 1900
Expansion into conventional machine tools (lathes and milling machines).
- ca. 1950
Expansion to include butcher's shop equipment; this division was later sold.
- 1983
Specialization in single- and multi-spindle milling machines for complex curved surfaces such as turbine blades and impellers.
- 1987
Introduction of the company's own CAM system Turbosoft.
- 1994
Market launch of the first Turbomill, a 5-axis machining center.
- 1997
Turboblisk innovation for dynamic 5- and 6-axis machining.
- 2002
Introduction of the g-MILL platform.
- 2004
Development of Turbosoft Plus.
- 2008
First Turbomill with g-technology.
- 2014
LIECHTI becomes part of GF Machining Solutions; order worth over USD 30 million.
- 2020
Introduction of the g-MILL 1000.
- 2022
Market launch of the TurboMILL 500g.
- 2025
Sale by GF Machining Solutions to the United Grinding Group; part of United Machining Solutions.