Vitrified Diamond and CBN ( Lesson n.1)

Generally, why Diamond and CBN wheels?
Diamond is for carbide, ceramic, glass, stone.
CBN is for steel, cast iron.
Better performances on hard materials: higher stock removal rates in shorter time compared to conventional grinding wheels.

What’s the difference between resinoid bonded and vitrified bonded wheels?
Resinoid bonded wheels don’t have any porosity and are difficult to dress with diamond tools.
Vitrified bonded wheels have porosity and can be easily dressed with special diamond dressing systems.

Pre-conditions for use of vitrified CBN grinding wheels
Machines in good conditions (no vibrations and high rigidity).
Mass production (big quantities per part).
Dressing system on the machine.
Wheel speed at least 50 m/sec. (except internal grinding).
Problems of wheel wear or surface finish on big series, with conventional grinding wheels.
Higher degree of care in approach to grinding problems...

Molemab - we shape your world

Molemab is an Italian industrial group which has an extensive international presence while remaining deeply rooted in the local area. Molemab’s head office is located in Ome, province of Brescia, in the Franciacorta winegrowing area of northern Italy.
The factory in Ome is one of the best organised facilities in Europe, including a manufacturing chain with presses up to 2.000 tons as well as a modern research and development department. As a result of being in business and having experience for 50 years, the Molemab Group is now able to produce 5.000 tons of wheels per year, with a diameter up to 2.100 mm.
Molemab products are used for standard operations and special applications worldwide: from Asia to Australia, from South Africa to Sweden, from Canada to Argentina. 

The Italian production is complemented by the Maclodio facility. Here, in a modern factory of 10.000 m2, with the most efficient equipment and technology, Molemab manufactures reinforced cutting and grinding discs.The presence of Molemab worldwide has been spreading throughout the years thanks to its growing potential and market demand of hi-tech products.
Molemab Inotech GmbH is located in Launsdorf (Carintia region, Austria). This is an advanced factory focused on resinoid and metal bonded Diamond and CBN hi-tech wheels produced by the most modern machinery.
Settled in the French design capital, St. Etienne, Molemab France SA manufactures reinforced cutting and grinding discs and services the French market, selling the full range of products made by the group. In Quebec, Canada, Molemab founded Abmast, the first local company manufacturing and providing cutting and grinding discs in the North American countries (USA, Mexico and Canada). In Venezuela RAMSA manufactures conventional grinding wheels and abrasive discs and distributes Molemab items throughout the South American Market.
In addition to the production facilities Molemab has various commercial branches.
They follow customers worldwide, providing technical and commercial support for every industrial sector. 

In North America the branches Molemab USA and Molemab Canada are active, while the European market is serviced by Molemab Iberica (Barcelona, Spain) and Molemab GmbH (Troisdorf, Germany). Molemab also keeps its eye on Eastern Europe, Russian, Indian and Chinese markets thanks to reliable commercial and productive partnerships and joint ventures. All companies sell the the complete range of Molemab abrasive products and follow customers’ needs.
Supported by qualified distributors and agents worldwide, Molemab can reach all of its customers, wherever they are.