Circular Tungsten Carbide Blade Knife for Lithium Battery Industry
Kedel tool manufactures premium quality circular slitter knives for most top-brand Lithium battery manufacturers.
Key Specifications
Material: Tungsten carbide
Grade: KS26D
Application: Lithium battery pole slice cutting
Applicable Machines: BYD, Xicun, Yinghe, Yakang, Haoneng, Qixing, Rongheng, Hongjin, Weihang, Toray, Qianlima, South Korea CIS
Production Introduction
Our lithium battery electrode slice slitter is manufactured through pressing, sintering, and fine grinding of cemented carbide powder, offering high wear resistance and anti-adhesion properties. Specialized in solving cutting problems including sticking knife, dust, burr, knife back print, wavy edge, and color difference.
Each blade undergoes 500x magnification inspection with no notches detected. Our precision manufacturing prevents edge collapse and burrs that could cause battery short circuits and safety hazards.
With years of experience in cemented carbide industrial tools production, we maintain strict control over blade size tolerance through unique edge precision machining technology and 100% automated edge inspection processes.
Product Features
- Hard alloy tungsten steel material with exceptional wear resistance
- High machining precision with thickness accuracy up to 3 microns
- Extended service life with cutting length up to 20,000 meters
- Excellent blade consistency with minimal burr formation
- Designed for cutting lithium battery pole pieces, ceramic diaphragms, copper foil, and aluminum foil
- Available in matched upper and lower knife sets
Material Physical Properties
| Grade |
Grain Size |
Density (g/cm³) |
HRA |
Fracture Toughness (kgf/mm²) |
TRS (MPa) |
| KS26D |
sub-fine |
14.0-14.1 |
90.4-90.8 |
19-20 |
4000-4800 |
Standard Sizes and Types
| NO. |
Product Name |
Dimensions (mm) |
Edge Angle |
Applicable Materials |
| 1 |
Slitting top knife
Slitting bottom knife |
Φ100xΦ65x0.7
Φ100xΦ65x2 |
26°,30°,35°,45°
26°,30°,35°,45°90° |
Lithium battery pole piece |
| 2 |
Slitting top knife
Slitting bottom knife |
Φ100xΦ65x1
Φ100xΦ65x3 |
30°
90° |
Lithium battery pole piece |
| 3 |
Slitting top knife
Slitting bottom knife |
Φ110xΦ90x1
Φ110xΦ75x3 |
26°,30°
90° |
Lithium battery pole piece |
| 4 |
Slitting top knife
Slitting bottom knife |
Φ110xΦ90x1
Φ110xΦ90x3 |
26°,30°
90° |
Lithium battery pole piece |
| 5 |
Slitting top knife
Slitting bottom knife |
Φ130xΦ88x1
Φ130xΦ70x3/5 |
26°,30°,45°90°
90° |
Lithium battery pole piece |
| 6 |
Slitting top knife
Slitting bottom knife |
Φ130xΦ97x0.8/1
Φ130xΦ95x4/5 |
26°,30°,35°45°
26°,30°,35°,45°90° |
Lithium battery pole piece |
| 7 |
Slitting top knife
Slitting bottom knife |
Φ68xΦ46x0.75
Φ68xΦ40x5 |
30°,45°,60°
90° |
Lithium battery pole piece |
| 8 |
Slitting top knife
Slitting bottom knife |
Φ98xΦ66x0.7/0.8
Φ80xΦ55x5/10 |
30°,45°,60°
3°,5° |
Ceramic diaphragm |
Custom sizes available per customer specifications or samples
Product Details
Production Facility
Quality Control
Product Exhibition
Frequently Asked Questions
Are you trading company or manufacturer?
We are manufacturer.
Do you make customized products?
Yes, we often make customized products.
Do you provide free samples?
We can provide free samples, but do not pay freight cost.
How long is your delivery time?
Generally 1-5 days if we have stock, 30 days if the product is customized.
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