Schneeberger CNC grinding machine: pioneer in precision sharpening

Schneeberger grinding machines: a century of innovation and precision

The history of J. Schneeberger Maschinen AG is that of a company that started out as a mechanical workshop and has, since its creation in 1923, risen to become the world leader in the field of precision tool grinding.

 

The beginnings (1923-1945): the pioneering spirit

Guided by his mechanical engineering experience and a pioneering spirit, Walter Schneeberger founded the company in Roggwil, Switzerland. From the outset, the emphasis was on the manufacture of high-precision universal jig grinders such as the R1 model, designed to meet the varied needs of machine shops such as the jig grinding of wood drills and profiling blades. The company did not wait long to innovate, as it manufactured the first wet-sharpening knife grinder in 1929.

Despite the economic context of the 1930s and the Second World War, the company managed to develop and establish its reputation thanks to the quality and innovative nature of its products. It also made its first exports to Italy at that time (1940) and in 1945 developed the first sharpening machine to incorporate crossed roller bearings (SN).

 

 

Expansion and innovation (1945-1990): the technological boom

While other manufacturers of conventional grinding machines, such as EWAG, were already specialising in cutting tools, the post-war period marked a phase of expansion and diversification for Schneeberger. Having already been manufacturing specialised woodworking machinery since 1940, it branched out into machines for processing optical glass (1953-1962), shoe and heel moulding lathes (1954-1963), and the carpet industry (1955-1964).

 

In 1948, Schneeberger played a pioneering role in the development of linear guidance systems by launching the first production of linear guidance systems and roller tables. This major innovation, which defined the criteria for load capacity and reliability, revolutionised the machine tool industry and quickly became a global standard. This invention had a considerable impact on the development of many industries, far beyond machining.

 

The 1960s marked the technological peak of Schneeberger manual tool grinding machines. With their large number of axes and verniers, they were capable of producing almost any geometry. The range of tool grinding machines at the time included three manual tool grinding machines, with the following models:

• SN: heavy-duty universal tool grinder for milling cutters, hard metal tools, shaving tools, knives, etc.
• SP: combined tool grinder for planing knives and milling cutters.
• SK: tool grinder for milling cutters, hard metal tools with wet grinding device.

It was in the 1970s that Schneeberger's hyperspecialisation was decided. With the death of the founder and the takeover by his son Walter Schneeberger Jr., a clear division was established within W. Schneeberger AG:

• Longitudinal guides/Linear technology: this branch became Schneeberger Lineartechnik.
• Mechanical engineering/sharpening machines: this branch continues under the name J. Schneeberger Maschinen AG.

 

The rise of CNC and the development of emblematic machines (1985-2010): towards a global offering

After the split and with the arrival of digital controls, Schneeberger focused on the development and manufacture of high-precision CNC sharpening machines. The presentation of the very first numerically controlled profile jig grinder in 1985, followed in 1990 by the launch of its 5-axis jig grinding concept, bears witness to this pivotal period, marked by the development and integration of cutting-edge technologies.

 

It was during this period that machines were developed that would become benchmarks in precision jig grinding, in particular the imposing Corvus Type C hob cutter jig grinder (which prefigures the current Corvus NGB) and the Schneeberger Norma 75 CNC sharpening machine. The latter universal sharpening machine stands out for its versatility and precision. It can be used to sharpen a wide range of tools, such as milling cutters, drills, reamers and turning tools. It is particularly suitable for small and medium-sized production runs. Its technical features include 5 CNC axes, high-frequency spindles and integrated measuring systems to guarantee optimal precision.

 

At the same time, and to optimise the use of its machines, Schneeberger developed its own CAD/CAM software, Quinto. This software allows machines to be programmed and controlled intuitively, offering advanced functionalities for tool design, machining simulation and data management.

 

 

The modern era (2010-present): a world leader

The company continues to innovate and develop, building on its heritage and expertise to remain the undisputed leader in the field of precision jig grinders.

For example, at GrindTec 2014, it presented the Norma NGC CNC grinding machine, which is still part of its range today. This Schneeberger 5-axis CNC sharpening machine is a universal and compact machine, offering great flexibility and high precision. It is ideal for the sharpening and production of complex tools (cutting or toothed), as well as for the non-cylindrical jig grinding of precision parts. It incorporates advanced technologies such as direct drives, high-precision measuring systems and user-friendly programming software.

 

In 2023, Schneeberger will celebrate its centenary, a fine testament to its success and longevity. This is an opportunity for the company to reaffirm its positioning, which can be summarised in three points:

 

• A focus on innovation and digitalisation: Schneeberger continues to invest heavily in research and development, focusing on automation technologies, digitalisation and Industry 4.0.
•  

• A global presence: Schneeberger is now present in the world's major markets, with subsidiaries and partners in many countries.

 

• A range of specialised machine tools covering all precision grinding needs: The company offers a wide range of CNC jig grinders, from universal machines to specialised machines for grinding complex tools and producing precision parts. With machines such as the Aries NGP, dedicated to micro-tools, the Gemini NGM for large series, the Sirius NGS for the production of precision parts, and the Corvus NGB for the sharpening of large diameter tools, Schneeberger confirms its cutting-edge technological expertise and its ability to meet the specific needs of the market.

 

Schneeberger's contributions to the world of CNC sharpening:

Beyond its superb contemporary range, J. Schneeberger Maschinen AG has made a significant historical contribution to the machine tool industry, and more particularly to the grinding machine industry. From its beginnings in the 1920s, the company distinguished itself by integrating solutions such as wet grinding, a breakthrough for the time that limited tool heating and improved grinding quality. The move towards computer numerical control (CNC) from the 1980s onwards led to the adoption of technologies such as:

• direct drives (eliminating mechanical play and improving precision),
• high-precision measuring systems (guaranteeing nanometric tolerances) and,
• high-performance CAD/CAM software such as Quinto (enabling optimised programming and machining simulation),

The integration of technologies has considerably advanced the state of the art in the field of precision sharpening.

 

 

Why buy a used Schneeberger CNC sharpening machine?

Recognised for their exceptional precision and reliability, Schneeberger machine tools represent an investment, justified by their high technological value.

 

They are used in many workshops across the globe, meeting the highest standards of advanced tooling. This durability and long-term value encourages many players to turn to the second-hand market, acquiring Schneeberger CNC grinding machines from qualified second-hand machine tool dealers. These machines, benefiting from rigorous overhaul and maintenance, maintain a high level of performance.

 

• Heritage and experience: after almost a century of experience, buying a Schneeberger grinding machine means benefiting from unique know-how in the field of precision jig grinding.
• The emphasis on precision: precision is at the heart of Schneeberger's DNA, resulting in machines and solutions of exceptional quality and durability.
• Continuous innovation: Schneeberger is constantly at the cutting edge of technology to meet the evolving needs of the industry. In 2010, the company was developing innovative solutions that are still considered the gold standard today.
• The full range of solutions: Schneeberger offers a wide range of machines and automation solutions, enabling it to respond to a wide variety of applications.

 

How to choose between a Schneeberger CNC sharpening machine and a Walter CNC sharpening machine?

Schneeberger and Walter CNC sharpening machines are two major players in the field of tool sharpening. Although both companies offer high-quality solutions, there are some differences between them:

• Areas of expertise: Schneeberger is traditionally more focused on cutting tool grinding and the production of precision parts, while Walter offers a wider range of solutions, including EDM machines and solutions for hard metal machining.
• Range of machines: Schneeberger offers a more specialised range of jig grinders for sharpening cutting or toothed tools, while Walter offers a more diverse range, covering a wider range of applications.
• Approach: Schneeberger places greater emphasis on precision and quality, while Walter also emphasises productivity and automation.