Mastering ultra-hard

Robellaz was founded in 1902 and has acquired the experience, technology and know-how necessary for the highly specific machining of ultra-hard and very small materials. To enhance its independence, Incabloc SA bought the company in 2015. This acquisition enabled the firm to extend its range of skills and its offer, as well as to achieve vertical integration and better control its production of shock absorbers, settings and bearings.

Incabloc SA’s stone department now offers great production flexibility and guarantees the delivery of products that meet the most demanding standards. Its creative and responsive team is always looking for optimal solutions to meet customers’ specific needs.


Several million units per annum.

Ruby, sapphire, tungsten carbide, ceramics, etc.



Pierre d’appui «PA»

Glace Olivé «GO»

Bombé «B»

Bombé Olivé «BO»

Glace deux Creusures «G2C»

Glace deux Creusures Olivé «G2CO»

Mi-Glace «MG»

Mi-Glace Olivé «MGO»

Mi-Glace Bombé «MGB»

Mi-Glace Bombé Olivé «MGBO»

Glace «G»

Pierre d’appui Olivé «PAO»

Pierre d’appui Bombé Olivé «PABO»

Pierre d’appui Ruban Poli «PARP»

Pierre d’appui Bombé Ruban Poli «PABRP»

Pierre d’appui Bombé des deux côtés Ruban Poli «PAB2XRP»

Pierre d’appui Bombé des deux côtés «PAB2X»

Contre-pivot «CP»

Contre-pivot Bombé «CPB»

Contre-pivot deux Bombés «CP2B»

Contre-pivot Bombé Creusure décentrée «CPBCD»

Creusure + Bombé «CPCB»

Goupille «GOU»

Pierre Glace  creusure cônique «GC»