Voumard Grinding Machines – The Swiss specialist in internal grinding
Voumard – Quality with Swiss Roots
Voumard is one of the world’s best-known specialists in internal grinding machines. Anyone involved in the precision machining of bores, bearing rings, or hydraulic components is familiar with this name. Not because Voumard makes a big fuss about itself, but because its machines have been quietly doing their job for decades in the most demanding production lines of the automotive, aerospace, and machine tool industries.
It seems to be a tradition at Voumard to let results speak for themselves rather than make promises. Shortly after its founding in Switzerland in 1939, the company introduced the VM 33, an internal grinding machine that was unveiled at a trade show in Zurich and subsequently went into production. By 1954, over 5,000 machines had already been sold—a figure that speaks for itself, both then and now.
Today, Voumard is part of the Hardinge Group and is thus integrated into a global network of grinding, turning, and milling expertise. The brand continues to stand for what it has always stood for: high-precision internal and external cylindrical machining of complex workpieces—from the smallest fuel injection components and ball bearing rings to complex spindle components.
Three factors that make Voumard grinders so exceptional
Three factors make Voumard grinders so exceptional.
- The ability to perform complete machining in a single setup: With high-precision chucks, steady rests, and fixtures for shoe grinding, a Voumard can perform multiple internal and external grinding operations without retooling. This reduces setup times, improves process stability, and significantly increases the achievable accuracy of the workpiece.
- The hydrostatic axis technology of modern Voumard machines. The HYDROLIN guides on the Voumard 1000 are backlash-free, wear-free, and designed for positioning accuracy in the nanometer range—a technology that is unmatched in high-precision machining.
- Flexible spindle architecture: The Voumard 1000’s spindle turret can be equipped with up to four grinding spindles. This enables a wide range of machining options without having to change machines—a decisive advantage wherever small batch sizes and varying workpiece geometries are the norm.
This is how Voumard grinding spindles are constructed
In their basic design, Voumard grinding spindles are tailored to the requirements of high-precision internal cylindrical grinding. Typical features of these machines include high-frequency internal grinding spindles with speeds of up to 120,000 rpm, hydrostatic bearings for maximum smoothness of operation, precise workpiece spindle heads, and integrated measuring systems for in-process control of the achieved geometries.
What primarily distinguishes Voumard grinding spindles from those of other manufacturers is their consistent adaptation to the specific requirements of internal grinding—a process in which even the slightest deviations in speed, smoothness, and rigidity have a direct impact on the grinding result.
Value for money – Voumard’s biggest selling point
Ultimately, there is a simple reason why manufacturing companies in the automotive industry, bearing production, hydraulics, and machine tool manufacturing around the world continue to rely on Voumard. The value for money that sets Voumard grinding machines apart is hard to beat in the high-precision segment of internal grinding. Anyone looking for a machine that operates with even greater precision, flexibility, and reliability than a Voumard in this discipline will definitely have to dig much deeper into their pockets.
Spindle Repair for Your Voumard Spindle
Repairing Voumard grinding spindles requires technical expertise regarding the specific requirements of these high-frequency spindles. Kern GmbH’s experience is based on over 14,000 spindle repairs across more than 2,800 different spindle types. We understand the requirements of Voumard systems and perform maintenance work professionally.
Our goal is to minimize your machine downtime. We analyze the condition of your components and quickly restore them to their original performance. If you have any questions about overhauling your Voumard spindle or scheduling a service appointment, our customer service team is here to assist you.