Description
What Are Slitting Shims?
Slitting Shims are ultra-precise adjustment rings installed within the slitting tooling stack.
Their primary purpose is to fine-tune the horizontal clearance between slitter knives, spacers, and stripper rings.
Proper shim selection helps:
- Optimize knife overlap
- Reduce burr formation
- Improve edge quality
- Maintain strip width accuracy
- Extend slitter knife life
Material Construction
Premium Alloy Steel
Manufactured from imported high-quality alloy steel.
Features:
- High dimensional stability
- Excellent wear resistance
- Long service life
- Superior hardness consistency
Vacuum Heat Treatment
Each shim is vacuum hardened to ensure:
- Uniform hardness
- Improved wear resistance
- Stable thickness accuracy
- Long-term dimensional reliability
Technical Specifications
Thickness Tolerance
Standard:
±0.001 mm
Ultra Precision:
±0.0005 mm
Parallelism
≤0.002 mm
Flatness
≤0.002 mm
Surface Finish
Available Finishes:
- Precision Ground
- Mirror Polished
- Burr-Free Surface
Benefits:
- Improved stack accuracy
- Reduced assembly errors
- Better knife positioning
Key Advantages
Precise Clearance Adjustment
Allows operators to achieve the exact knife gap required for different materials and thicknesses.
Improved Slitting Quality
Correct clearance helps:
- Minimize burrs
- Reduce edge rollover
- Improve strip quality
- Lower scrap rates
Extended Tool Life
Proper knife setup reduces unnecessary blade wear and extends regrinding intervals.
Stable Production Performance
Micron-level accuracy ensures repeatable setup results across multiple production runs.
Applications
Stainless Steel Slitting
Precise knife clearance is critical for burr-free cutting and long tool life.
Silicon Steel Slitting
Helps maintain clean edges and minimize magnetic property degradation.
Aluminum & Copper Slitting
Improves edge quality and reduces material deformation.
Thin Foil Slitting
Essential for maintaining dimensional accuracy in foil slitting applications down to 0.05 mm.
Available Customizations
We manufacture according to:
- Drawings
- Samples
- Existing Tooling Systems
Custom Options:
- Outer Diameter (OD)
- Inner Diameter (ID)
- Thickness
- Material Grade
- Surface Finish
- Special Hardness Requirements
Why Choose Our Precision Shims?
Micron-Level Accuracy
Manufactured to tolerances as tight as ±0.0005 mm.
Consistent Thickness Control
Ensures reliable knife setup and repeatable slitting performance.
Premium Materials
High-grade alloy steel provides excellent durability and dimensional stability.
OEM Manufacturing
Compatible with major slitting line tooling systems worldwide.
Industries Served
- Steel Service Centers
- Stainless Steel Processing Plants
- Aluminum Coil Processing
- Copper Strip Production
- Electrical Steel Manufacturing
- Transformer Core Production
- Battery Foil Processing
Frequently Asked Questions
What is the purpose of slitting shims?
Slitting shims are used to fine-tune knife clearance and improve slitting accuracy.
What tolerance can you achieve?
Standard tolerance is ±0.001 mm, with ultra-precision manufacturing available down to ±0.0005 mm.
Can you manufacture custom shim sizes?
Yes. We manufacture custom shim rings according to drawings, samples, or machine specifications.
Do you provide complete slitting tooling systems?
Yes. We supply slitter knives, stripper rings, spacer rings, shims, and separator discs as complete tooling packages.
