100 years for the Charles Costa mirror shop




For 100 years, each of the 4 generations has seen their father invest in the Charles Costa business, without counting his time, deploying a lot of effort and always with passion


We are happy to celebrate this year the extraordinary anniversary of our centenary.


Be sure that the satisfaction of our customers will always remain at the heart of our priorities as well as the respect of commitments with our partners.


I join with all my colleagues in presenting to you our best wishes for health, success and serenity for this new year 2020.



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Sarthe. L’entreprise Grav’Or ce week-end à l’Élysée

L’entreprise mancelle de gravure sur verre, fait partie des 100 entreprises sélectionnées pour l’exposition « Fabriqué en France » qui se déroule les 18 et 19 janvier 2020 à l’Elysée.

Les samedi 18 et dimanche 19 janvier 2020, 100 entreprises françaises – sélectionnées parmi 1 750 dossiers – présenteront le savoir-faire « Fabriqué en France » de 100 départements français, à l’Élysée. L’entreprise mancelle Grav’Or a été retenue pour représenter la Sarthe.

Nommée aux Talents de la Sarthe 2018 dans la catégorie « entreprise », la société de miroiterie et décoration sur verre présentera ce week-end un paravent avec gravure à la main, feuille d’or et laquage en églomisé précise le site de l’Élysée.


Convergence of machines for stone and glass

The arrival of industrial synthetic materials on the stone market has surprising consequences on the machinery market. In fact, we see appearing from certain suppliers who are both on the glass and stone market on the stone machinery market, machines that were once exclusively used on the glass market.


Mainly for two reasons.


1 / These new materials are calibrated in thickness.

So we see machines appearing for polishing the edge (Bavelloni, Intermac, Bovone) similar to those used for glass (rectilinear, double edger).


The gain is much better productivity for running in and polishing the edge.


2 / Some materials are based on glass


We are witnessing the arrival of cutting systems from glass much more productive and easy to use (cutting tables, at Bavelloni, Intermac ...)

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Miroiterie en vente


Perspective départ en retraite une miroiterie de façonnage avec activité menuiserie aluminium et PVC est disponible à la vente.

L'entreprise dont le dirigeant est très connu et présent  sur le marché depuis de nombreuses années  possède un parc machines diversifié et est située dans une ville importante du Sud-Ouest.

Parc machines avec table de coupe, rectiligne, perceuse, machine à bandes...

Equipes de poseurs indépendants.


Pour plus d'informations glass@comascotec.com ou 06 64 73 63 77. Merci


Horizontal double spindle glass drilling machines



The first question to ask is : small or important series to drill? From the answer you have some clues about the drilling machine and options you need.

The majority of the glass drilling machines available on the market allows to drill an hole between 1000 and 1800 from the glass edge (it means you can drill everywhere your hole on glass between 2 meters and 3,6 meters lenght with such machines).


Perceuse verticale Janbac

Double spindle glass drilling machine from  Janbac


The second parameter is how is managed the rotation speed spindle adjustment. The main solution on the market are with pulleys and belt (not easy) or with electronic regulation. If you have small holes series on glass the electronic regulation is easier and faster to use (and you are sure your operator uses it!!!).

An other important point is the adjustment of the drilling point on the glass (laser, manual or automatic square..)

A lot of glass drilling machines for small series are very similar. These machines are generally well protected against water.

The working spindle stage for the inferior spindle is generally automatic. The one for the superior spindle can be manual or automatic.


Other points to study

-Supporting table dimensions for glass

-Adjustment for fast lifting for the inferior spindle

-Open or close water network.


If you have big series you must have also a look on

-Adjustment for the drill wearing

-Drills tools store or not


Have also a look on the glass vertical drilling machines file.

The comparaison includes 10 suppliers, 25  drilling machines, 22 technical parmeters