Secondary Battery Parts

21C produces and supplies circular blades used when disc cells of a cathode and an anode are cut through a knife unit in the field of secondary batteries, and It has production technology of flawless quality with long lifespan and no chipping.

Secondary Cell Battery

A secondary cell is a battery composed of one or more electrochemical cells capable of charging and discharging.
In other words, the electric vehicle field of a typical lithium-ion battery is drawing the most attention as a battery that can be reused through charging even after being used.

21C produces and supplies circular blades used when disc cells of a cathode and an anode are cut through a knife unit in the field of secondary batteries, and
It has production technology of flawless quality with long lifespan and no chipping.

Secondary Cell Battery Process

Wheel Cutter & Ring Knife

Wheel Cutter & Ring Knife
Application : For cutting ceramic and electrodes sheet when MLCC manufactured
T D
2.0 60 ~ 38
T d D θ
4 ~ 0.2 160 ~ 80 260 ~ 100 90° ~ 4°
Raw Material : Tungsten Carbide.
Application : For cutting ceramic and electrodes sheet when MLCC manufactured.
Raw Material : Tungsten Carbide.
Application : Films, Paper & The others.
T D
2.0 60 ~ 38
Raw Material : Tungsten Carbide.
Application : For cutting ceramic and electrodes sheet when MLCC manufactured.
T d D θ
4 ~ 0.2 160 ~ 80 260 ~ 100 90° ~ 4°
Raw Material : Tungsten Carbide.
Application : Films, Paper & The others.
  • Less than 10㎛ of concentricity(common)
  • Less than 3㎛ of parallelism on the cutting edge(common)

21century Technology system

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