Manufacturer: Nitolex Corporation
Model:Cera Dia

Features

Cera Dia Wheels
High-performance, porous wheels with diamond abrasive, which has the highest hardness of all materials and ensures excellent sharpness and wear resistance, retained with a rigid, fine ceramic bond.
Increasingly advanced grinding technologies require higher grinding accuracy and greater adaptability to hard-to-grind materials. In addition, there has been a demand for cost reduction through automation and unmanned operation. The Cera Dia wheels make the most of diamond abrasive characteristics to meet those requirements

Characteristics

1．Higher retention force
Our ceramic bond strengthens the chemical bond with diamond grains and keeps them firmly anchored.
2．Sustainable sharpness
The porous structure delivers sharp cutting, high rigidity, and easy dressing, enabling accurate, efficient grinding with minimal distortion or dressing.
3．Adaptable to various materials and conditions
We adjust fillers such as alumina and silica carbonate to match different materials and grinding conditions.
4．All products made to order
We design each wheel to fit the customer’s specific application.
These advantages allow Cera Dia wheels to excel in medium- to fine-finishing, cut overall grinding cost, and support mirror grinding of ferrous metals.
Bond
Engineers select the optimal bond based on the operating conditions.

Concentrations
Generally used concentrations:

Data
Work material :Silicon Nitride (5% Yttria, 5% Alumina, Weibull coefficient 11.8)
Wheels:
Cera Dia SD 200 concentration: 100 CRD1
Resin SDC 200 concentration 100 B (competitor)
14A1 200D×20T×50.8H×10U×3X
Grinding method: Wet, up cut plunge grinding (Okamoto Machine Tool Works CGM-63)
Grinding conditions:
Wheel speed: 40 m/s
Depth of cut: 2 – 20 µm
Table speed: 12 m/min

Applications

Engineers optimize the abrasive, bond, filler, and porosity, and select the appropriate grade and concentration, to adapt Cera Dia wheels effectively to a wide range of grinding styles and materials based on many grinding cases.
Super-fine abrasive grinding
In recent years, industries have increased their requirements for surface quality and grinding accuracy, creating a need for grinding wheels with super-fine abrasives. Among all super-fine grinding wheels in the world, the Cera Dia wheels ensure efficient, accurate grinding with its excellent sharpness and sustainability. They are also useful in transitioning from loose to fixed abrasive.
Example 1

Example 2

Vertical spindle parallel-surface honing / lapping
The excellent sharpness and durability of Cera Dia wheels significantly reduce grinding costs by boosting efficiency and extending dressing intervals, even when operators run the wheels at lower speeds in vertical-spindle double-sided grinding.They are especially useful for thin products. Example 1

Example 2

Example 3

Surface grinding
Users apply Cera Dia wheels to ceramics and also use them to grind cemented tungsten carbide and steel simultaneously. They are particularly effective for thin workpieces that require high sharpness.
Example 1

Example 2

Example 3

Tool grinding
The Cera Dia wheels are suitable for higher efficient, accurate grinding of cutting tools. Manufacturers use them for grinding PCD, PCBN, ceramics, and other hard materials.
Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Cylindrical grinding
Cera Dia wheels grind cemented tungsten carbide and steel simultaneously and also handle various ceramics effectively. Their sharpness makes them especially useful for thin products that require precise grinding.
Example1

Internal grinding
The wheel achieves excellent finishing accuracy and grinding efficiency through its high rigidity and sharpness.
Example1