TROWAL SURFACE FINISHING TECHNOLOGY Multivibrator – model range MV HIGHLY VERSATILE AND EFFICIENT The vibrators of the MV model range are the ideal machines for fine grinding and polishing of delicate work pieces with intricate shapes and contours. This vibratory machine excels in consistently producing highly homogeneous surface finishes on work pieces with complex geometries and, for example, very thin, fragile ribs. Even difficult to reach corners receive a perfect finish. MV machines can be fully automated and easily adjusted to the most sensitive and delicate finishing tasks. THAT’S HOW IT WORKS The raw, unfinished work pieces are mounted onto a clamping device located at the bottom of the work bowl. Once the work pieces are in place the work bowl is filled with grinding or polishing media that is specially selected for the respective finishing job. Two, alternatively three, vibratory motors strategically placed on the outside of the work bowl induce the media to move in an intensive, but at the same time, gentle spiral pattern. This movement causes the media to constantly rub against the work pieces. The fact that the work pieces are mounted to a clamping device significantly increases the process intensity and prevents the work pieces from touching and damaging each other during the finishing process.

MEDIA AND COMPOUND The best finishing results are achieved when machine, media and compound are perfectly matched. The process engineers in our demonstration lab ensure that the right media and compound(s) are selected to fully meet your surface finishing requirements. Mechanical work piece clamping system (photo shows hip stem implants) Position of vibratory motor is adjustable VIBRATORY MOTORS The two, respectively three, vibratory motors mounted on the outside of the work bowl can be adjusted to a wide range of process intensities. This flexibility ensures that optimal finishing results are...

TYPICAL APPLICATIONS FOR MV VIBRATORS • Cleaning and smoothing of the surface of forging dies • Polishing of die-casting molds • Deburring of the internal and external surface areas of complex work pieces • Fine grinding, smoothing and polishing of orthopedic implants • Surface smoothing of turbine blades • Reconditioning of used tooling • Surface grinding and polishing of automotive wheels • …and many more! Complex aerospace component Pre-ground and polished femur knee implant Cleaned and reconditioned forge tool THE MV ADVANTAGES • Consistent and absolutely repeatable grinding and polishing...

MV 21 Machine weight, empty (kg) Batch load – ceramic media (kg) Batch load – plastic media (kg) Max. work piece dimensions*) (mm) Max motor speed**) (RPM) Dimensions (in mm) * Measured diagonally ** Speed infinitely adjustable by frequency inverter Walther Trowal GmbH & Co. KG Rheinische Straße 35-37 | D-42781 Haan Tel. +49(0)2129-571-0 | Fax +49(0)2129-571-225 [email protected] | www.walther-trowal.com Technical modifications reserved 12 / 20 www.promise-marketing.