Edge Technology (Blade/Cutter/Knife)

Based on 30 years of edge technology, we are supplying the best sharp and long-life products in various fields such as MLCC, film, and secondary batteries.

Technology Introduction

21C is producing various cutters and blades based on 30 years of technology and know-how.
Cutters required for cutting at various production fields, such as MLCC, film, and secondary batteries, are not simply cut, but precise straightness, angle management of the cutting edge, and excellent material management are required in order not to damage the object.
In general, cutters are classified into various categories such as blade, cutter, knife, vertical blade, wheel cutter, and the core technology, Edge’s management technology, is the core technology point of cutters.
Accordingly, the 21st century is supplying reliable high-precision, high-quality, long-life various cutters.

PRECISION BLADE FOR MLCC PRODUCTION PROCESSES

Vertical Blade Cutting Blade(Double Step)
T W L
Requirement specification Requirement specification 444 ~ 224
T TO W WA L θ
0.4 0.1 ~ 0.03 22.4 4.39 ~ 3.32 230 ~ 100 ±18°
Raw Material : Tungsten Carbide.
Application : For cutting ceramic and electrodes sheet when MLCC manufactured.		 Raw Material : Tungsten Carbide.
Application : MLCC & Ceramic Condenser.
Vertical Blade
T W L
Requirement specification Requirement specification 444 ~ 224
Raw Material : Tungsten Carbide.
Application : For cutting ceramic and electrodes sheet when MLCC manufactured.
Cutting Blade(Double Step)
T TO W WA L θ
0.4 0.1 ~ 0.03 22.4 4.39 ~ 3.32 230 ~ 100 ±18°
Raw Material : Tungsten Carbide.
Application : MLCC & Ceramic Condenser.
  • Less than 5㎛ of straightness, flatness & parallelism on the cutting edge(Common)

Femtosecond BLADE processing technology

Ultra-precision processing technology with ultra-short laser

FEMTOSECOND LASER BLADE Durability

WHEEL CUTTER for MLCC production process

Wheel Cutter Development of roller non-contact cutting method

Raw Material : Tungsten Carbide.
Application : For cutting ceramic and electrodes sheet when MLCC manufactured.

T D
2.0~0.3 60~38
  • Less than 10㎛ of concentricity(Common)
  • Less than 3㎛ of straightness, flatness & parallelism on the cutting edge(Common)
  • Increased service life (non-contact) by reducing wheel cutter load: 15 to 20 times
  • Improved quality by preventing sheet uncut and reducing foreign substances (prevent chipping)
  • Wheel Cutter up and down position adjustable
  • Improved productivity by real-time tension control according to air pressure (no setting time required)
  • Reduced maintenance costs (no tension change)
Wheel Cutter

Raw Material : Tungsten Carbide.
Application : For cutting ceramic and electrodes sheet when MLCC manufactured.

T D
2.0~0.3 60~38
  • Less than 10㎛ of concentricity(Common)
  • Straightness and flatness of less than 3 μm in the blade area (common)
  • Less than 3㎛ of straightness, flatness & parallelism on the cutting edge(Common)
Development of roller non-contact cutting method
  • Wheel Cutter 부하량 감소로 수명 증가(비 접촉) : 15~20배
  • Sheet 미절단 방지 및 이물질 감소로 품질 향상(치핑 방지)
  • Wheel Cutter 상하 위치 조절 가능
  • 에어압력에 따른 실시간 장력 조절로 생산성 향상(셋팅 시간 불필요)
  • 유지보수 비용 절감(장력 변화 없음)

Wheel Cutter

Material : PCD(Poly Crystal Diamond)
(Sub-micron particle : 0.5um)

O/D Φ1.8mm ~ Φ3.1mm
I/D Φ0.8mm
Angle 90° ~ 150°
Pitch Quantity 3ea ~ 850ea
Pitch
SPEC.		 DEPTH 1.5㎛ ~ 15㎛
WIDTH 3.5㎛ ~ 45㎛

Lens Cutter for Camera Module

 
  • Less than 5㎛ of straightness, flatness & parallelism on the cutting edge
 
Raw Material : Tungsten Carbide.
Application : The gate area for Plastic lens.
  • Less than 5㎛ of straightness, flatness & parallelism on the cutting edge
 
Raw Material : Tungsten Carbide.
Application : The gate area for Plastic lens.

21century Technology system

If you have any questions or inquiries, please feel free to contact us.
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