Precision Grinding Technology (ELID)

21C has the highest level of precision grinding technology that does not cause quality degradation due to frequent dressing, a problem in the existing industry.

TECHNOLOGY INTRODUCTION

Precision grinding technology is essential for the machining and production of precision parts.
In semiconductor/LCD, MLCC, and secondary battery fields, especially precision parts are widely used.
The problem with general grinding technology is that it has to be worn continuously depending on the amount of wheel wear after grinding, but it is difficult to maintain the same quality because the condition of the wheel surface changes slightly after dressing. To put it simply, ELID grinding technology can be described as a technique of grinding while continuously dressing.
Accordingly, 21C is implementing high-precision grinding based on its own ELID technology and know-how, and the products produced through this process show high-precision flatness and quality that are difficult to produce in general.

VACUUM PLATE ELID GRINDING TECHNOLOGY

ELID grinding technology (vacuum plate)

  • ELID grinding technology (vacuum plate)
  • Reduced burr generation during grinding
  • Automation of Manual Dressing Tasks
Ra 0.018 ㎛ Ra 0.010 ㎛

Ultra-precision surface grinding with flatness of 5 μm or less is possible

BLADE ELID GRINDING TECHNOLOGY

ELID grinding technology (blades)

  • EL-BLADE Characteristics
  • Materials : Tungsten Carbide, Zirconia etc.
  • Blade Thickness(t1) : 100 ㎛
  • Blade Edge Thickness(t2) : Below 0.2 ㎛
  • Blade Edge Linearity : Below 5 ㎛
  • Blade Edge Symmetry : Below 3 ㎛
  • Blade Edge Roughness : Ra 0.02 ㎛
  • Angle(θ) Accuracy : ±0.3°

EL-BLADE Cutting Quality

  • Improved surface finish of VACUUM PLATE, BLADE
  • Reduced burr generation during grinding
  • Automation of Manual Dressing Tasks

21century Technology system

If you have any questions or inquiries, please feel free to contact us.
https://www.youtube.com/channel/UCsdmghhdrzyS7b7yX6k_f9g
https://blog.naver.com/kim21ctt
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