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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.

Preparations

The high level of complexity of the project required the formation of a dedicated team and close collaboration between scientists, foundry engineers, designers, and bell founders. 

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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.

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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.

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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.  

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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.

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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.

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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.

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Finishing Works

After three months of cooling in the casting pit, work began on removing the core and other remnants of the mold.

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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.

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First Ringing

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Bell Logistics

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Departure to Brazil

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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.  

Dreams Come True