Bell VOX PATRIS – 55 TONS
The largest swinging bell in the world

Born from dreams and passion. Created to serve God and people
Where will the Vox Patris bell go?
The Vox Patris bell will be installed at the Sanctuary of the Eternal Father in Trindade, Brazil - one of the country’s most important pilgrimage sites. It will be mounted on the monumental tower of the temple, from where its powerful sound will resonate over the sanctuary, calling the faithful to prayer.
As the largest swinging bell in the world, it will become not only a symbol of faith and unity, but also an extraordinary testament to the craftsmanship of Polish bell-founding and bell-ringing technology.

Father Robson’s Visit to Poland
On February 18, 2014, Father Robson de Oliveira paid a visit to Poland, wishing to personally assess the possibility of having bells made in Poland for his Sanctuary.

First and Second Visit to Brazil
To better understand the specifics of the bell installation site, visits to the construction area were carried out in March and then in August 2015, combined with meetings with the team of designers.

The First (Unsuccessful) Casting
On November 20, 2016, after more than two years since the start of the project, the pivotal moment took place - the casting of the bell.

Analysis of the Failure
In December 2016, after a thorough analysis of the causes behind the unsuccessful first casting, conclusions were drawn regarding what had gone wrong.

Preparations for the Next Casting
Starting in January 2017, work on a new mold for the bell resumed with renewed determination, as the team prepared to face the challenge once again.

The Second Casting (Success)
On August 1, 2017, at 2:04 a.m., the Vox Patris bell was born—the largest swinging bell in the history of global bell founding.

Finishing Works
After three months of cooling in the casting pit, work began on removing the core and other remnants of the mold.
Bell Presentation
The world saw the bell in its full glory for the first time on September 20, 2018, during its official presentation attended by the media.



Innovation
Every detail of the project was
a challenge
Focus
International Cooperation

200
That’s how many people worked on this project
35%
That’s how much heavier it is than the Gotemba Bell


Bell Equipment
Where ideas and challenges come to life

A Key Milestone
Together, we reach new heights
VOX PATRIS IN NUMBERS
The facts and figures behind this project capture the imagination





Bell Weight
55 tons
Bottom Diameter
4,5 m
Height
4,0 m
Musical Tone
Fis2
Casting Duration
12 minut
Casting Date
1-08-2017
Total Weight with Yoke
77 tons
Structure Weight
26 tons
Clapper weight
1600 kg
Sound Level
117 dB
Drive Power Consumption
173 A
Drive type
6 motors

Symbolism and Spiritual Significance
The Vox Patris bell is not merely an engineering triumph—it also serves as a spiritual symbol. Its creation is deeply connected to the veneration of God the Father, underscoring the importance of prayer and the communion of the faithful.
Advanced Drive and Suspension Technology
The drive mechanisms and suspension structure were developed by Rduch Bells & Clocks, ensuring safe and efficient operation. The control systems provide precise regulation of the bell’s movement, minimizing mechanical wear.
Polish Precision and Craftsmanship
The project was executed by the Jan Felczyński Bell Foundry in Przemyśl and Rduch Bells & Clocks - companies with decades-long traditions and international acclaim. It stands as a testament to Polish craftsmanship and innovation on a global scale.
Every Detail Was a Challenge
The Vox Patris project is a remarkable milestone in the world of bells, blending monumental size, outstanding acoustics, and cutting-edge technologies.
Its unique qualities make it not only the largest swinging bell in the world, but also a symbol of innovation and masterful craftsmanship.
The Largest Swinging Bell in the World
Weighing 55 tons, the bell sets a new benchmark among monumental bell instruments. Its impressive dimensions make it one of the most significant bells in history.
Precise Sound and Harmonic Balance
Thanks to its carefully engineered acoustic profile, Vox Patris emits a deep, resonant, and pure tone that carries over great distances. This sound quality is the product of master bell-founders working in concert with leading acoustics experts.

