Precision and test grinding for demanding cylindrical, profile, thread and jig grinding tasks including ceramics and glass.
Liebich AG Präzisions- und Testschleiferei
Goldach, SwitzerlandNew on Amplifa
About us
Liebich AG is a Swiss precision and test grinding shop with its workshop in Goldach SG. The six-person team, with over 100 years of combined grinding experience, manufactures and finish-machines ultra-precision workpieces and components. The service portfolio includes cylindrical, internal, non-round, eccentric, profile, thread, polygon (Polygon and Capto) and jig grinding as well as complete internal grinding. As a particular core competence, the company performs applications and trial grinding to explore the possibilities and limits of grinding machines, software and hardware; it has many years of experience in ceramic and glass machining. All grinding is performed exclusively on Kellenberger machines, all equipped with hydrostatic guideways and rotating dressing. Quality assurance includes 100% measurement of every workpiece, gauge control and 3D metrology in partnership. In addition, Liebich AG offers process monitoring, training, grinding process development and programming as well as commissioning at the customer's site.
- Site
- Goldach
- Processes
- Cylindrical grinding, Internal grinding, Non-round grinding, Eccentric grinding, Profile grinding, Thread grinding, Complete internal grinding, Polygon grinding (Polygon and Capto)
- Materials
- Ceramics, Glass
- Certificates
- 100% measurement, Gauge control (annual verification), 3D metrology (partnership)
- Founded
- 1990
- Employees
- 6
- Industries
- Ceramics, Glass, Precision mechanics, Toolmaking, Precision mechanics / toolmaking (implied by precision grinding shop)
- 01
Order clarification & specification
- 02
Application & grinding trials
- 03
Grinding process development and programming
- 04
Precision grinding (cylindrical/internal/non-round/profile/thread)
- 05
100% measurement of every workpiece
- 06
Commissioning at the customer
Materials & Processes
Ceramics
Grinding of ceramics with many years of experience, especially in trial grinding.
Glass
Precision grinding of glass as an established specialty.
Locations
Goldach
CHWorkshop / Precision and test grinding shop
- Materials
- Ceramics, glass, metals
- Kellenberger Kel-Varia UR 1-2-3 250/1500 (Hitorque tailstock)
- Kellenberger Kel-Varia UR 1-2-6-7 175/1500
- Kellenberger Kel-Varia UR 1-2-3 175/1000
- Kellenberger Kel-Varia RS 1-2-4-5 250/1500
- Voumard VM-1000 (nanopositioning, internal grinding spindles up to 90'000 rpm)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Cylindrical grindingMachining | – | 1500 mm | – | – | – |
| Internal grindingMachining | – | – | – | – | – |
| Non-round grindingMachining | – | – | – | – | – |
| Eccentric grindingMachining | – | – | – | – | – |
| Profile grindingMachining | – | – | – | – | – |
| Thread grindingMachining | – | – | – | – | – |
| Complete internal grindingMachining | – | – | – | – | – |
| Polygon grinding (Polygon and Capto)Machining | – | – | – | – | – |
| Jig grindingMachining | – | – | – | – | – |
| Application & grinding trials (test grinding)Engineering | – | – | – | – | Ceramics, Glass |
| Ceramic and glass machining (grinding)Machining | – | – | – | – | Ceramics, Glass |
| Process monitoring, training, grinding process creationEngineering | – | – | – | – | – |
| Quality monitoring / 100% measurement of every partTesting | – | – | – | – | – |
| Gauge controlTesting | – | – | – | – | – |
| 3D metrology (in partnership)Testing | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Universal CNC OD/ID grinding machine (internal/external grinding) | Kellenberger Kellenberger VM1000 / Voumard VM-1000 | 1 | – | – | Goldach, Switzerland |
| Non-round grinding machine (Hitorque tailstock) | Kellenberger Kel-Varia UR 1-2-3 250/1500 | 1 | 250/1500 | – | Goldach, Switzerland |
| Universal cylindrical grinding machine with two external grinding wheels and two internal grinding | Kellenberger Kel-Varia UR 1-2-6-7 175/1500 | 1 | 175/1500 | – | Goldach, Switzerland |
| Universal cylindrical grinding machine with two external grinding wheels and one internal grinding | Kellenberger Kel-Varia UR 1-2-3 175/1000 | 1 | 175/1000 | – | Goldach, Switzerland |
| Grinding machine with grinding head for 4 grinding wheels (complex external profiles) | Kellenberger Kel-Varia RS 1-2-4-5 250/1500 | 1 | 250/1500 | – | Goldach, Switzerland |
| Internal grinding machine with 2 linear/rotary axes (nanopositioning), C-axis, 2 B-axes, 2 | Voumard (Kellenberger) VM-1000 | 1 | – | – | Goldach, Switzerland |
Additional services
Quality
Every workpiece is fully measured before leaving the workshop (100% measurement, not just sampling). The measuring instruments are checked annually; for gauge control and 3D metrology, Liebich AG works with experienced metrology partners.
| Evidence | Goldach |
|---|---|
| 100% measurement | |
| Gauge control (annual verification) | |
| 3D metrology (partnership) |
History
- 1990
Markus Liebich founded the Liebich precision and test grinding shop.
- 2004
Markus Liebich has been working at Liebich AG since 2004.
- 2023
Robert Mandura joined the team on 01.01.2023 as a precision grinder.
- 2024
Andreas Müller joined the team on 01.01.2024 and is deployed on the new Voumard VM 1000.