Diamond Tools Equipment based on Process Know-How

Building specialized equipment around the world

Diamond Tools

PTC manufactures a wide range of Diamond Saw Blades and Drills designed for the cutting and Drilling of Glass, Quartz, Ceramics, Pyrex and other hard materials.

PTC designs and manufactures these diamond blades and drills in a wide range of diameters both metal or resin bonded. Due to the fact that we manufacture these blades and drills in house we have the ability to adjust the composition to achieve the right balance between finish, machining speed and life of the blade/drill. The composition of these tools are made up by the following parameters:

  • Mesh (size of the diamond)
  • Diamond Type (quality of the diamond)
  • Concentration (quantity of diamond)

Mesh (size of the diamond)

The size of the diamonds is classified according to the screen through which it is sieved.

Mesh size refers to the number of openings per linear inch of a screen. For example, a 220-mesh screen has 220 openings per inch. As the mesh of diamond decreases, say from 150 to 400, the quantity of diamond particles per carat increases substantially.

Diamond Type (quality of the diamond)

Various qualities of diamonds are used for Cutting and Drilling in Glass, Quartz, Ceramics, Pyrex and other hard materials. PTC uses synthetic diamonds. These are man-made, produced in controlled environments resulting in a consistent supply of diamonds. The quality of industrial, man-made diamonds is determined by toughness, the shape and the friability index.

Concentration

Diamond concentration is primarily determined by the amount of diamond present within a given volume of the tool’s working layer. For instance, a concentration of 100 in a diamond layer equates to 4.4 carats per cubic centimeter. 1 Carat corresponds to 0,2 gram. Higher diamond concentration generally leads to increased tool hardness and potentially longer tool life, but also higher costs. On the other hand, lower concentrations may be suitable for less demanding applications or when cost of the tool is a concern.

Bond

PTC uses both resins or metals powders to hold the diamond in position. These resins or metals are sintered or cured in the production process and the hardened end result is crucial to the overall performance of the PTC diamond tools.

During the sawing or drilling process , the wearing away of the bonding exposes new diamond crystals thereby providing fresh cutting points for the diamond blade or drill. Finding the right balance between the cut/drill finish or the speed of machining and how quickly the bonding is wearing away is critical. Generally softer, more abrasive metraisl require a togh to wear (hard) bonding whereas less abrasive materials require a softer bond.