The pinblock, as one of the most important elements, although directly invisible in most instruments, is designed to maintain the so-called the tuning (melody) on the instrument. Unfortunately, a beautiful and new tuning box after a long use of the instrument, and we are talking about decades, sometimes becomes exploited. Over time, the holes left by the reed pins driven into the pin bars widen and do not hold the pins sufficiently for the instrument to be tuned, the wood warps, shrinks, bends or simply breaks and loses its ability to attach and hold the tuning to the instrument. In such cases, we are forced to replace the pincer. In our company, we use dies of various origins, such as Delignith, Bolduc or Pisz s.a.
Delignith is a German-made multi-layer plywood made of beech wood. Depending on the needs of the instrument, the tuning machine consists of several layers. Beech veneer prides itself on high quality, its layers are pressed together with hot modified phenolic resin. This type of dressing machine is used by professionals all over the world.
Bolduc is a Canadian origin square, also known as a ‘maple plate’, made of maple wood. The headstock is glued together in such a way that the layers are resistant to temperature changes and the occurrence of possible humidity, and yet they are not suitable for tuning the instrument. We only use Bolduc plywood to renovate Steinway & Sons instruments.