At bmk Baumann, vibratory grinding is a regular part of our daily job order production. This cutting procedure is mainly used for the surface machining of metal workpieces. The workpieces and abrasive chips – complemented in most cases by a water-based additive compound – are poured into a tank as bulk materials. The oscillating or rotating movement of the work tank creates a relative movement between the workpiece and the abrasive chips, thus abrading material from the workpiece, and from its edges in particular. The surface appearance of the workpieces, their roughness, the material abrasion, as well as their deburring performance can be more or less freely varied by means of the machines and tools deployed (abrasive chips and compound).

The German DIN 8589 standard refers to vibratory grinding as barrel finishing. This is due to the fact that grinding does not always take place, and lapping or polishing is applied in many cases depending on the individual process. Named after the company Walther Trowal (“Trommel-Walther” – “Barrel Walther”), which was the first to perform vibratory grinding in a barrel on an industrial scale, this process is also known under the Trowalising brand subject to certain legal conditions (licencing).

The following machining goals can be achieved by way of vibratory grinding:

• eburring, edge radiusing
• Glossing, smoothing, polishing (also referred to as “high gloss compaction”)
• Descaling, cleaning
• Matting
• Grinding
• Degreasing, deoiling

We also clean your components by means of ultrasonic immersion
Ultrasonic immersion cleaning is the perfect method to remove contamination and oil residues from finished parts.

bmk Baumann is your specialist in Nuremberg for adiabatic cutting, CNC turning, CNC milling, machining, vibratory grinding, ball bearing cages, as well as for punching & forming.