Tower clocks & bell automation
We manufacture new tower clocks, modernise existing ones and automate bells using reliable clock movements and modern control and synchronisation systems. We handle the entire process, from design and manufacturing to installation, commissioning and maintenance.
We manufacture new tower clocks and modernise existing ones by replacing outdated movements with modern, accurate and reliable systems.
We also automate existing bells by installing drive and control systems tailored to the requirements of each installation.
Tower clocks and automated bells can operate independently or be integrated into a common control system. We use professional Bodet solutions that enable precise time synchronisation and automatic bell-ringing schedules, including those for religious services, holidays and other special occasions.
Tower clocks
We build new tower clocks and restore historic movements: the movement, the drive to the dials, the dials and the hands are made or remade in our Oradea workshop, to the size of the tower. The clock is tied to a GPS-synchronised control clock with automatic summer/winter changeover.
Frequently asked questions
Can a clock be installed on a tower without an existing clock opening?
Yes. We can also install clocks on towers that were not originally designed to accommodate one.
The clock face, mounting system and supporting components are designed to suit the building's architecture and structural requirements. Depending on the design, a complete dial or individual hour markers can be mounted directly onto the tower's façade, without the need for a recessed clock face.
Does a clock need to be installed on every side of the tower?
No. A tower clock can have one, two, three or four dials, depending on the building's design, the visibility of each side and the client's requirements.
We recommend installing dials on the sides of the tower that are visible from the surrounding public spaces. Where several dials are installed, their movements are synchronised to ensure that they all show the same time.
Can the size and appearance of the clock be adapted to the tower?
Yes. We design and manufacture the dials, hands and decorative elements to suit each project. Their size, shape, materials, colours and finishes are chosen to complement the tower's proportions and architectural style.
We produce both traditional and contemporary tower clocks. The size of the dials and hands is also determined by the distance from which the time needs to be read.
Can tower clocks be illuminated at night?
Yes. Depending on the clock's design and materials, the dial can be backlit or illuminated by external spotlights.
We design the lighting to ensure that the time remains clearly visible after dark, while complementing the building's architectural lighting.
How do tower clocks keep accurate time?
We use reliable, purpose-built clock movements that can be synchronised via GPS. This allows the clocks to display the correct time and automatically adjust between summer and winter time.
The drive and control systems are selected according to the number of dials, the size of the hands and the specific requirements of each installation.
What happens during a power cut?
Tower clocks equipped with GPS synchronisation and automatic hand-setting can reset themselves to the correct time once power and the time signal are restored, without any manual adjustment.
The functions available for each system are detailed in our technical quotation.
Can an existing tower clock be modernised while preserving its original features?
Yes. We can replace outdated or faulty clock movements with modern drive and control systems while retaining the original dials, hands and decorative elements wherever their condition and compatibility allow.
For clocks of historical or architectural significance, we take particular care to preserve their original character. Any restoration or modernisation work is planned following a technical assessment, taking account of applicable conservation requirements.
Do you provide servicing and maintenance for tower clocks?
Yes. We inspect, service, repair and maintain both clocks installed by Oraexacta and those supplied by other manufacturers.
Following a technical assessment, we determine the work required to keep each clock operating reliably and extend its service life.
Bell automation
Church bells are driven by linear motors that reproduce the natural motion of a hand-rung bell: the ringing speed and timing match those of manual pulling, while the swing angle is controlled. The linear motors are three-phase induction machines used for bells over 150 kg; a single motor drives bells up to 1,500 kg, and for heavier bells several motors can be coupled together.
- Electrical installation
- Electromagnetic hammer
- Linear motors — LIN 1 (bells up to 500 kg) or LIN 2 (up to 1,500 kg)
- Electrical control panel
- Programming control clock with GPS antenna
Selected Projects
Frequently asked questions
What equipment do you use for bell automation?
We use specialist bell-ringing motors and control equipment from established manufacturers, including Bodet Campanaire.
We select and configure the equipment to suit each installation, with particular attention to safety, reliability and long-term operation.
Can existing bells be automated without replacing them?
Yes. In most cases, existing bells can be automated by installing modern drive and control systems, without replacing the bells themselves.
We first assess the condition of the bells, their suspension and the supporting structure to determine which equipment is suitable and whether any repairs or modifications are needed.
What bell weights can you automate?
We offer automation solutions for bells weighing up to 2,000 kg.
The choice of motor and drive system depends on the bell's weight, dimensions, suspension and the condition of the supporting structure. We assess each installation before recommending a suitable solution.
Will automated bells still ring in the traditional way?
Yes. For swinging bells, modern drive systems maintain the traditional swinging movement while controlling how the bell starts, swings and stops.
Bells that remain stationary can also be fitted with electric striking mechanisms. We choose the most suitable method according to the bell's design and the type of ringing required.
Can you repair or replace the bell's suspension and drive system?
Yes. We can repair or replace worn or damaged suspension components, bearings and drive mechanisms.
Where suitable, older installations without bearings can also be upgraded with modern bearing systems. The work required depends on the condition of the bell, its existing suspension and the supporting structure.
How is bell ringing scheduled for services and religious holidays?
The control system can be programmed for daily services, Sundays, religious festivals and special occasions.
Ringing times, durations and sequences can be set for individual bells or groups of bells. The programme can be updated whenever required to accommodate changes to the church's schedule.
Can bells be rung on demand as well as automatically?
Yes. In addition to the regular ringing schedule, bells can be started or stopped whenever needed using the control system.
With compatible equipment, remote operation is also possible from a smartphone or computer via an internet connection.
This allows bells to be rung for special services or unexpected events without changing the regular programme.
The tower clock is already there, but it no longer runs?
Restoring monumental clocks now has a page of its own: what we restore, how the work goes and who we do it for.
Have a project? Talk to an Oraexacta specialist.
Send us a few details or photos and we'll propose the technical solution that fits.