“During the production process, individual components and entire pianos undergo several kinds of quality control. The final, exit control is carried out just before the piano is wrapped and dispatched. We wrap the pianos in several layers of wrapping material to ensure that however long the journey may be to your homes or concert halls, they cannot be damaged mechanically or by damp in the environment.”
—Susan Petrof
Up to 80% of production operations are carried out by hand. Without experienced master piano makers, intoners and tuners PETROF pianos would scarcely be what they are – they could hardly have achieved such international renown, nor boast their characteristic romantic sound which is appreciated by music lovers the world over.
Every instrument leaving the gates of our factory represents those who took part in its making. As the instrument makes its way through the production process, every craftsman, in turn, makes sure that he has devoted the greatest care to his task. The result after 9 months is a masterpiece, whose birth certificate displays the names of all its makers, one that reflects more than 150 years of experience, love of music, and the honorable trade of the Petrof family.
RESONANT SPRUCE – THE HEART OF PETROF PIANOS
Careful selection of materials precedes actual production. Specialists from PETROF and our long-standing suppliers travel all over Europe and personally select materials and components that meet our high standards. The most important is obviously high-quality wood – especially spruce for the making of the soundboard – the heart of PETROF grands and uprights. Wood and other materials make a fundamental contribution to the instrument’s appearance and the resultant tone, and so we take exceptional care in its selection.
THE SEAL OF EUROPEAN EXCELLENCE ATTESTS THE QUALITY OF MATERIALS AND THEIR ORIGIN
We at PETROF produce 70% of our parts and components ourselves. This means we have complete control over their quality. Thanks to this, in 2007 we were awarded the European Excellence Certificate which attests the European origin and the highest quality of production materials. Ever since the EEX seal has appeared on all our instruments.
AN INSTRUMENT THAT SOUNDS SPLENDID MUST ALSO LOOK BEAUTIFUL
Human skill, experience, and dexterity are irreplaceable in most production operations. Although it guarantees high quality of tone, there are, however, certain production processes where greater precision is required, and no advantage would be gained by hand work alone. In such cases, we use top-quality NC machines adjusted to the needs of PETROF’s masterly instruments.
We pay special attention to the piano’s surface finish. We work with a wide palette of different veneers: for satin finishes, we use polyurethane varnishes, and where we wish to achieve a high gloss, we apply polyester varnishes.
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