Equipment Introduction

A grinding machine is a type of machine tool used for grinding the surface of workpieces using abrasive tools and abrasives (such as grinding wheels, sandbags, oilstones, abrasives, etc.). It can process various surfaces, such as flat surfaces, inner and outer cylindrical surfaces, conical surfaces, and helical surfaces. Through grinding, the shape of the workpiece and the accuracy and smoothness of the surface can meet the expected requirements; at the same time, it can also perform cutting operations. Common types of grinding machines include hand-operated grinders, surface grinders (precision grinders), and cylindrical grinders.

Equipment Characteristics

  1. Capable of processing materials with high hardness, such as hardened steel, hard alloys, etc.
  2. Capable of processing brittle materials such as glass, granite, etc.
  3. Grinding machines can achieve high precision and minimal surface roughness grinding, as well as high-efficiency grinding, such as power grinding, etc.

Types of Processing

Grinding cylindrical surfaces, grinding conical external surfaces, grinding internal holes, grinding shaft shoulders, grinding end faces, grinding fillets, etc.

Processing Precision

Precision of ordinary grinding machines:

  1. Steel plate ≤160x160mm, flatness 0.008mm~0.004mm, roughness Ra0.8um;
  2. Steel plate ≤250x250mm, flatness 0.025mm~0.01mm, roughness Ra0.8um;
  3. Steel plate 6301000mm, flatness 0.08mm0.05mm, reference tolerance grade IT5IT7, surface roughness Ra0.161.25um.

Precision CNC grinding machine:

Steel plate 0~500mm, flatness 0.004mm, roughness Ra0.2um. The grinding tool used for highly precise grinding processes is oilstone, but it can only remove a few microns of material.

External cylindrical grinding machine precision:

  • Common external cylindrical grinding machine, roundness within 3um, roughness Ra0.4um;
  • High-precision external cylindrical grinding machine, roundness up to 0.1um, roughness Ra0.01um.

Materials for Processing

Carbon steel, stainless steel, aluminum alloy, brass, alloy steel, glass, granite, etc.