Tungsten Carbide Circular Slitting Knives for Lithium Battery Separator Films

Detailed Description

SG Carbide Knives makes tough circular blades for cutting lithium battery films. Our blades are different because we use solid tungsten carbide that lasts much longer than ordinary blades. Top battery companies like CATL and ATL use our blades every day in their production because they deliver clean cuts without burrs or dust. The secret is in our special manufacturing process that makes the blades denser and sharper. When you need blades that won't wear out quickly and can handle thin battery films perfectly, try ours. We can send samples in just 3 days so you can see the difference yourself. Good blades mean fewer production problems and better quality battery separators - that's what we deliver. Designed for 5μm+ precision slitting, our blades minimize edge defects and eliminate sticking/peeling—perfect for wet/dry process separators in EV, ESS, and 3C batteries.

Already adopted by Top 3 Chinese battery giants (CATL, ATL, Lead Intelligent), SG’s tungsten carbide slitting blades ensure:

✔ 20% longer lifespan vs. standard HSS blades

✔ Ra <0.2μm cut surface with anti-sticking coating

✔ Single/double-edge designs for adjustable slit widths