Manufacturer of through-feed grinding machines for surface grinding, profile grinding, magnet grinding as well as brushing and cut-off grinding.
Linear Abrasive Engineering S.A.
Marin (CH) · Speyer (DE)New on Amplifa
About Linear Abrasive
Linear Abrasive Engineering S.A. develops and manufactures at its headquarters in Marin (Switzerland) through-feed grinding machines for continuous surface grinding, profile grinding and magnet grinding as well as brushing and cut-off machines and grinding units. The starting point was a machine development by Alfred Schlaefli for the ferrite industry: a through-feed machine that combines vertical and horizontal spindles on a reinforced cast-iron frame and was patented in Europe and the USA. The company covers the entire value chain, from technical design and software development through in-house mechanical manufacturing of more than 80% of machine parts to assembly, wiring and completion at the Marin site. Customers are found in demanding industries such as the automotive industry, the electrical, photovoltaic and tool industries as well as the ferrite and telecommunications sectors. Applications include, among others, surface grinding of connecting rods, compressor plates and gear racks as well as profile grinding of pump blades, also in carbon. A sales office in Speyer serves Germany and Austria; customer service completes the range of services. The plant had a photovoltaic roof (30 kW) and a wood-fired heating system.
- Site
- Marin
- Processes
- Continuous surface grinding (through feed surface grinding), Continuous profile grinding (through feed profile grinding), Continuous grinding of magnets (through feed magnet grinding), Custom developments (specific development), Brushing (brushing, continuous, up to 2 vertical stations), Cut-off grinding, Grinding units (grinding units), Assembly, wiring and completion of grinding systems
- Materials
- Carbon (CFRP), Ferrite (magnet material), Cast iron/reinforced concrete composite frame
- Certificates
- Machine control resolution 0.01 mm
- Founded
- 1984
- Industries
- Automotive industry, Electrical appliances, Photovoltaics, Tools, Ferrites / Telecommunications, Various
- 01
Technical design and software development
- 02
In-house mechanical manufacturing
- 03
Assembly, wiring and completion
- 04
Customer service / after-sales service
Materials and Processes
Cast iron/reinforced concrete composite frame
Massive frame that ensures the high rigidity required for through-feed grinding; design patented in Europe and the USA.
Carbon (CFRP)
Machining in continuous profile grinding, e.g. pump blades made of carbon.
Ferrite (magnet material)
Target material of the original machine development for continuous grinding of magnets with precise air gap.
Locations
Marin
CHHeadquarters and manufacturing: design, mechanical manufacturing, assembly, wiring, completion
- Materials
- Steel, cast iron, carbon, ferrite
- Through-feed grinding machines (surface grinding, profile grinding, magnet grinding)
- Brushing machine II (up to 2 vertical stations, 15 kW, 0–2000 rpm, feed rate 0–6000 mm/min, Siemens Simatic TIA Portal, resolution 0.01 mm)
- Cut-off grinding machines
- Grinding units
- Mechanical manufacturing hall (>80% in-house manufacturing)
Speyer
DESales branch for Germany and Austria (Linear Abrasive GmbH)
Machined Parts and Applications
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Continuous surface grinding (through feed surface grinding)Machining | 0.01 mm (resolution) | – | – | – | – |
| Continuous profile grinding (through feed profile grinding)Machining | – | – | – | – | Carbon (CFRP) |
| Continuous grinding of magnets (through feed magnet grinding)Machining | – | – | – | – | Ferrite, Magnet materials |
| Custom developments (specific development)Engineering | – | – | – | – | – |
| Brushing (brushing, continuous, up to 2 vertical stations)Surface | 0.01 mm | 120 mm × 75 mm | – | – | – |
| Cut-off grindingMachining | – | – | – | – | – |
| Grinding units (grinding units)Machining | – | – | – | – | – |
| Assembly, wiring and completion of grinding systemsAssembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Through-feed brushing machine II (2 vertical stations) | Linear Abrasive Bürstmaschine II | – | Z axis 120 mm; width 120 mm; height 75 mm | – | Marin, Switzerland |
Additional services
Quality
The experience gained from industries with strict standards, in particular the automotive industry, is reflected in the precision of the machines; the brushing station operates with 0.01 mm resolution. Information on certifications is not published on the website.
| Evidence | Marin |
|---|---|
| Machine control resolution 0.01 mm |
Company History
- ca. 1980
Alfred Schlaefli develops the first through-feed grinding machine (vertical and horizontal spindle on a reinforced cast-iron frame) for the ferrite industry; patents in Europe and the USA.
- 1984
Founding of Linear Abrasive Engineering S.A. by Alfred Schlaefli.
- 2017
Alfred Schlaefli leads the company until this year.
- 2018
Roderic Schlaefli takes over the management.