Description
What Are Precision Spacer Rings?
Spacer Rings are installed between slitter knives and stripper rings on the arbor shaft.
Their primary functions include:
- Maintaining precise strip widths
- Positioning slitter knives accurately
- Eliminating cumulative setup errors
- Improving slitting accuracy
- Supporting high-speed production
The accuracy of spacer rings directly affects:
- Strip width consistency
- Burr formation
- Knife life
- Overall slitting quality
Premium Material Construction
Alloy Tool Steel
Available Materials:
- D2 Tool Steel
- H13 Tool Steel
- Cr12MoV
- Custom Tool Steel Grades
Benefits:
- Excellent wear resistance
- High compressive strength
- Long service life
- Superior dimensional stability
Advanced Manufacturing Process
Production Process:
- Precision Forging
- Rolling
- CNC Machining
- Vacuum Heat Treatment
- Precision Grinding
- Mirror Lapping
- Final Inspection
This process ensures uniform hardness and exceptional dimensional accuracy.
Technical Specifications
Precision Tolerances
Thickness Tolerance:
Standard:
±0.001 mm
Ultra Precision:
±0.0005 mm
Parallelism:
≤0.002 mm
Flatness:
≤0.002 mm
Hardness
Heat Treatment Range:
58–62 HRC
Benefits:
- Excellent wear resistance
- Resistance to axial compression
- Long-term dimensional stability
Key Advantages
Accurate Strip Width Control
Micron-level manufacturing accuracy ensures consistent strip widths throughout the entire slitting process.
Long-Term Stability
Premium alloy steel and vacuum heat treatment prevent deformation under heavy clamping forces.
Mirror-Lapped Surface Finish
Precision lapped surfaces provide:
- Smooth knife contact
- Reduced vibration
- Improved stack stability
- Longer tooling life
Reduced Setup Errors
High-precision spacers eliminate cumulative errors across the arbor and improve production consistency.
Applications
Stainless Steel Slitting
Provides precise knife positioning and stable cutting quality.
Carbon Steel Processing
Maintains consistent strip widths during continuous production.
Aluminum Coil Slitting
Supports high-speed slitting with excellent dimensional accuracy.
Copper Strip Processing
Ensures stable strip tracking and burr-free edges.
Silicon Steel Processing
Supports precision slitting for transformer and electrical steel applications.
Available Customizations
We manufacture according to:
- Drawings
- Samples
- Machine Specifications
Custom Options:
- Outer Diameter (OD)
- Inner Diameter (ID)
- Thickness
- Material Grade
- Surface Finish
- Special Heat Treatment
Why Choose Our Spacer Rings?
Micron-Level Precision
Tolerance up to:
±0.0005 mm
Superior Wear Resistance
Premium alloy steel ensures long-term durability.
Excellent Stack Stability
Improves slitting accuracy and reduces machine vibration.
OEM Manufacturing Support
Custom manufacturing available for all major slitting line brands.
Industries Served
- Steel Service Centers
- Stainless Steel Processing
- Aluminum Coil Processing
- Copper Strip Manufacturing
- Electrical Steel Production
- Transformer Core Manufacturing
- Automotive Industry
Frequently Asked Questions
What tolerance can you achieve?
Standard tolerance is ±0.001 mm. Ultra-precision manufacturing down to ±0.0005 mm is available.
Can you manufacture according to samples?
Yes. We support both sample-based and drawing-based production.
What material is used?
Most spacer rings are manufactured from D2, H13, or other premium alloy tool steels.
Do you provide complete slitting tooling systems?
Yes. We supply slitter knives, stripper rings, spacers, shims, and separator discs as complete tooling packages.

