28+ Years Experience & Direct Factory Price
Precision Metal Slitting Knives & Circular Blades Manufacturer
For Steel, Stainless Steel, Copper, Aluminum, Silicon Steel & Ultra-Thin Metal Slitting
High-precision custom slitting knives engineered for stable cutting, burr control, longer service life and demanding metal coil applications.
High Precision
±0.001mm Tolerance
Custom Manufacturing
According to Drawing/Sample
Stable Quality
Long Service Life
Global Supply
Fast Delivery
Choose Your Preferred Category
Compatible Equipment
Applications We Serve
Precision slitting solutions for steel coils and sheet materials used in general metal processing.
High-precision slitting solutions for copper and aluminum strip, foil and other non-ferrous materials.
Precision slitting for battery electrode materials, including copper foil, aluminum foil and other power battery materials.
Reliable slitting solutions for silicon steel, electrical steel and transformer core material processing.
Slitting solutions for automotive sheet, precision strip steel and high-strength steel processing.
High-precision slitting for ultra-thin stainless steel, precision spring materials and metal materials used in electronic components.
Choose Your Blades Materials
Matching Materials to Operating Conditions
Tungsten Carbide
HSS
Tool Steel
STAINLESS STEEL
Carbon Steel
PM-HSS
Alloy Steel
Tungsten steel
SENDA Special Steel
Get Our Free Samples
Customization Capabilities
The goal of material selection is not simply to achieve higher hardness, but to balance wear resistance, toughness, edge stability, regrinding intervals, and actual production conditions.
Customizable Features
- Outside Diameter
- Bore Diameter
- Thickness
- Bore Tolerance
- Thickness Tolerance
- Flatness
- Parallelism
- Concentricity
- Hardness
- Surface Finish
- Edge Geometry
- Keyway
- Non-Standard Structures
- Dimensions of Matched Slitting Tooling
Solutions to Common Slitting Problems
Burrs, Edge Chipping, and Short Blade Life Are Not Always Caused by Insufficient Sharpness
Excessive Burrs After Slitting
- Unclean cut edges
- Large burrs on the edge
- Reduced product consistency
How SENDA Supports You
We help check tool clearance, blade wear, material selection, flatness, spacer accuracy and the matching of the complete slitting tooling setup.
Chipped / Broken Cutting Edge
- Nicks or cracks on the edge
- Abnormal blade damage
- Downtime, blade replacement or material scrap
How SENDA Supports You
Based on the hardness and thickness of the material being cut and the production conditions, we help confirm whether the blade material, heat treatment and blade structure match the current application.
Tool Interference /Blade Jamming
- Abnormal tool wear
- Blade damage
- Unstable slitting or abnormal edge condition
How SENDA Supports You
According to the circular knife and tooling component specifications, we help check possible mismatches in clearance, parallelism, spacer accuracy, overlap and overall setup arrangement.
Short Blade Life and Frequent Regrinding
- Blades become dull quickly
- Blade change frequency increases
- Longerdowntime and higher production cost
How SENDA Supports You
Based on the actual cutting material and wear condition, we help recommend a more suitable material system, heat-treatment direction and accuracy requirement.
Unstable Slit Width or Edge Quality
- Variation in slit width
- Material wandering
- Fluctuating edge quality
- Unstable high-speed production
How SENDA Supports You
From the perspective of circular knife accuracy, bore size, runout, concentricity and full slitting tooling matching, we help analyze the possible source of the problem.
Material Scratching or Sticking to the Blade
- Scratches on the material surface
- Poor material passing performance
- Unstable foil or electrode edge quality
How SENDA Supports You
According to the circular knife and tooling component specifications, we help check possible mismatches in clearance, parallelism, spacer accuracy, overlap and overall setup arrangement.
When slitting problems occur, the cause may come from the blade material, but it may also be related to tool clearance, dimensional accuracy, spacers, PU rings, arbor condition or machine adjustment.
Please send SENDA your cutting material, material thickness, blade drawing, current specifications and problem photos. We will help analyze the possible influencing factors based on your actual slitting conditions.
Manufacturing & Quality Control
Controlled manufacturing from raw material to final inspection.
Forging, vacuum / salt bath heat treatment and double tempering.
Vacuum or salt bath heat treatment with double tempering for hardness and toughness balance.
Precision grinding controls flatness, bore tolerance and outside diameter.
Deburring, demagnetization and surface finishing improve cutting stability and surface quality.
Hardness and dimensional inspection before shipment.
Final identification, protection and standard export packaging.
Precision You Can Verify
Strict quality control ensures stable dimensions, high hardness and excellent surface finish,providing reliable cutting performance for your slitting application.
±0.001 mm
Thickness Tolerance
0.002 mm
Parallelism
Ra 0.04 μm
Surface Finish
Inspection
Hardness & Dimensions
More About SENDA
