1.The Lapping Plateis the "core tool". It needs to be dressed through multiple processes such as automatic disc dresser finishing and grooving to ensure its own flatness is ≤ 0.002mm. In addition,
the rotational speed stability during operation must be controlled within ≤ ±1rpm (regulated by a servo motor + grating ruler closed-loop control system) to avoid uneven workpiece grinding or
chipping caused by disc vibration.

Pressure control

2.The pressure system acts as a "precision pusher". High-end models are equipped with 3-5 pressure stages, namely heavy pressure, medium pressure, light pressure, etc. This allows different
pressure stages to be adopted in different grinding cycles to meet the varying grinding requirements of each stage. For example, heavy pressure is used during rough grinding to quickly grind the
product to the specified thickness; medium pressure or light pressure is applied in the second stage when improving flatness.

Lapping fluid assistance

3.The grinding fluid is an "auxiliary tool" containing abrasives (diamond, silicon carbide, etc.), coolants, and dispersants: Abrasives are responsible for "micro-cutting" (diamond abrasives for
high-hardness materials, silicon carbide abrasives for metals); coolants control the temperature to ≤ 40℃ (to prevent metal oxidation and ceramic thermal cracking); dispersants prevent
abrasive agglomeration (to ensure uniform surface roughness).

In summary, when producing high-precision products with a surface grinder, the coordinated operation of these three factors is essential to achieve "both flat and precise grinding".