Su Zhou Jin Li Cutting Tools Co.,Ltd

Slitter Spacers

Precision Spacer Rings Manufacturer | Slitter Spacers for Metal Slitting Lines

High-Precision Slitter Spacers for Metal Slitting Lines

SZJL Cutting Tools manufactures high-precision Spacer Rings and Slitter Spacers for metal slitting lines worldwide.

Precision spacers are critical components in every slitting tooling setup, ensuring accurate knife positioning, stable strip widths, and burr-free cutting performance. Manufactured from premium alloy tool steel and finished to micron-level tolerances, our spacers deliver outstanding dimensional stability and long service life in demanding production environments.

Widely used in steel service centers, stainless steel processing plants, aluminum coil slitting lines, copper strip production, and electrical steel processing.

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.

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