Grand Piano Wippens Guide

Features of the Renner Wippen

On fine quality pianos, this amazing action mechanism, perfected over 300 years, is made from all natural living material like fine woods, felt, and leather which depend on small action centers to precisely control their motion with specific tolerances that must also move naturally within the environment.

1. Fine Adjustment Screws
Designed for superior fine adjustments after initial rough regulations. Also prevents butterfly spring from wearing a noisy groove in the repetition lever.
2. Regulating Screw Screws
Renner wippens feature precision machined regulation screw and granulated tensions for optimum regulation.
3. The Butterfly Spring
Engineered and hand adjusted at the factory for maximum strength and precision in order to ensure the most finely tuned and durable regulation possible.

Renner Grand Piano Wippen Guide

4. Action Center
Over the average lifetime of a piano, the piano keys may be played millions of times, activating the hundreds of small levers which transmit the energy from the finger of the performer to the hammerhead which strikes the strings, producing the sound you hear.
5. The Renner Spoon
Unique design includes a large, easily adjusted surface with adjustment arm ribbed at the base and deeply inset for maximum regulation precision and durability.
6. Universal Wippen
The flexibility of this unique design allows accurate replacement of piano actions for those very special pianos no longer in production and for which replacement parts are not available.

 

7. High Definition Flange
The High Definition Flange will provide a more accurate flange seating on the many different flange rails produced over the years for both vintage and modern pianos, providing a more accurate transmission of power from the key to the string.
8. Hornbeam Wood
One of the little know secrets of Renner action parts is the use of a special wood called Weissbuche – Hornbeam in English – which is naturally air-dried and aged over several years.