Construction of advanced abrasive machining systems

About us

Company history

In the early 1980s, the industry producing ferrites used in the manufacture of high-frequency current transformation circuits for telecommunications was looking for a state-of-the-art grinding machine to improve the quality of machined surfaces and increase productivity.  These circuits also require an extremely precise air gap, so the sector called upon an engineer well known for his skill in the construction of high-performance grinding machines: Alfred Schlaefli.
Accepting this challenge, he built the first continuous machine which combines two operations in one with a vertical and a horizontal spindle mounted on a shared cast-iron structure strengthened with reinforced concrete. The high level of rigidity obtained in this way enabled him to achieve the desired objective. This unique construction is patented in Europe and the United States of America.

In 1984, Alfred Schlaefli founded Linear Abrasive Engineering S.A., a company which he ran until 2017.

Since 2018 the company is managed by his son, Roderic, with support of a team of competent and very experienced specialists, ready to meet any challenges.


Areas of expertise







Technical design and software development 

R&D and innovation are a key part of LINEAR ABRASIVE's production process. Thanks to its experience in the area of continuous grinding, the company manufactures advanced systems enabling users to obtain components of the required quality in the best and most cost-effective way.

Assembly, wiring and et fine tuning

These traditional tasks are carried out in their entirety at our factory in Marin (Switzerland), boosting flexibility and ensuring a quick response time.


LINEAR ABRASIVE has a machining workshop which enables it to manufacture more than 80% of the mechanical parts its machines require independently.

After-sales service

LINEAR ABRASIVE provides customers with a high-quality after-sales service.

The skills offered by LINEAR ABRASIVE have been acquired by a team of professionals who have accumulated a thoroughly grounded knowledge of the design and production of high-performance grinding systems.

Its experience in sectors with stringent requirements such as the automobile industry, with its strict standards, has made LINEAR ABRASIVE an indispensable and reliable partner capable of providing bespoke advice.



Company philosophy

LINEAR ABRASIVE is often cited as an example of good practice when it comes to protecting the environment. Its innovation in this area is demonstrated by:

-The photovoltaic roof of its factory, with a capacity of 30 kWh

-The wood-fired heating used in its premises requiring some 60 cubic metres of wood depending on the weather in winter
-A Mercedes UNIMOG U5023 Euro 6 transport vehicle