When Should Bridge Caps Be Replaced?
During long-term use of a grand or upright piano, bridge caps often develop small or large cracks.
As a result, the bridge pins become loose, and the instrument’s sound turns short, buzzing, and unclear.
Tuning also becomes increasingly difficult.
Replacing the bridge caps restores a clear, resonant tone and eliminates tuning problems.
Why Restoration with SAP?
Most of the work is done by hand.
Our craftsmen have many years of experience.
For over 35 years, we have maintained the highest standards of work.
We use unique methods perfected over the years.
We work with materials supplied by the world’s best manufacturers.
The Bridge Cap Replacement Process
Replacing bridge caps involves removing the old caps and attaching new ones in their place.
The process begins with carefully mapping the positions of the bridge pins from the old caps.
The old caps are then cut away, and the upper surface of the bridges is manually refined to remove imperfections.
Any remaining pin holes in the bridges are also filled.
For new caps, we use hard beech or maple wood.
We ensure that the wood has been properly seasoned and has the correct moisture content.
The new caps are carefully shaped and aligned with the wood grain, then glued to the bridges with a special adhesive designed for this purpose.
Once the caps are securely bonded, a detailed finishing process begins, ensuring they work perfectly together with the frame and pinblock to create the best acoustic conditions.
This includes restoring the proper crown.
The bridge caps are then trimmed to the correct height, and pin holes are drilled at the proper angle.
At the customer’s request, the caps may be graphite-coated or left untreated. Finally, the caps are notched and chiseled, and the new bridge pins are inserted into the holes.