Description
What Are Precision Spacer Rings?
Precision Spacer Rings, also known as Slitter Spacers, are installed between slitter knives and stripper rings on the arbor shaft of metal slitting lines.
Their primary function is to accurately position slitter knives and maintain consistent strip widths throughout the slitting process.
High-quality spacer rings help operators:
- Maintain precise strip widths
- Position slitter knives accurately
- Eliminate cumulative setup errors
- Improve slitting accuracy
- Support high-speed production
- Reduce burr formation
- Extend slitter knife life
Because every spacer contributes to the total stack height, even small dimensional deviations can accumulate across the arbor and negatively affect strip quality, knife alignment, and production stability.
Why Choose Our Precision Spacer Rings?
Micron-Level Manufacturing Accuracy
Our spacer rings are manufactured to extremely tight tolerances to ensure repeatable setups and consistent slitting performance.
- Standard thickness tolerance: ±0.001 mm
- Ultra-precision tolerance: ±0.0005 mm
- Parallelism: ≤0.002 mm
- Flatness: ≤0.002 mm
This level of accuracy minimizes cumulative stack errors and improves strip width consistency across multiple production runs.
Benchmark Quality Without Premium Brand Pricing
Our production process follows the same precision standards, material selection principles, and heat treatment technologies commonly associated with premium slitting tooling manufacturers worldwide.
By manufacturing directly and eliminating unnecessary distribution layers, we provide comparable precision, durability, and reliability while maintaining significantly lower procurement costs.
This allows customers to achieve premium tooling performance while keeping operating expenses under control.
Premium Alloy Tool Steel Construction
Our spacer rings are manufactured from high-quality alloy tool steels selected according to customer applications and production requirements.
Available materials include:
- D2 Tool Steel
- H13 Tool Steel
- Cr12MoV
- Custom alloy tool steel grades
Material selection can be optimized according to strip material, line speed, and production volume requirements.
These materials provide:
- Excellent wear resistance
- High compressive strength
- Long service life
- Superior dimensional stability
- Resistance to deformation under heavy clamping loads
Vacuum Heat Treatment for Long-Term Stability
Each spacer ring undergoes controlled vacuum heat treatment to ensure:
- Uniform hardness distribution
- Improved wear resistance
- Excellent compression resistance
- Stable dimensions during long production cycles
- Reliable long-term performance
Typical hardness range:
- 58–62 HRC
Precision Surface Finishing
Available surface finishes include:
- Precision Ground
- Mirror Lapped / Super Finished
- Burr-Free Surface Finish
These finishing processes provide:
- Smooth knife contact surfaces
- Reduced vibration
- Improved stack stability
- Easier assembly
- More accurate knife positioning
- Longer tooling life
Custom Manufacturing & OEM Compatibility
We manufacture spacer rings according to:
- Customer drawings
- Samples
- Existing tooling systems
- Machine specifications
Available customization options include:
- Outer Diameter (OD)
- Inner Diameter (ID)
- Thickness
- Material Grade
- Surface Finish
- Special Heat Treatment Requirements
Our spacer rings are compatible with most major slitting line configurations worldwide and can be integrated seamlessly into existing tooling systems.
Technical Specifications
| Item | Standard / Available Options |
|---|---|
| Outer Diameter (OD) | Custom |
| Inner Diameter (ID) | Custom |
| Thickness | Custom |
| Thickness Tolerance | ±0.001 mm Standard |
| Ultra Precision Tolerance | ±0.0005 mm Available |
| Parallelism | ≤0.002 mm |
| Flatness | ≤0.002 mm |
| Material | D2 / H13 / Cr12MoV / Custom |
| Heat Treatment | Vacuum Hardened |
| Hardness | 58–62 HRC |
| Surface Finish | Ground / Mirror Lapped / Burr-Free |
| Manufacturing Basis | Drawing / Sample / Existing Tooling System |
Manufactured according to customer drawings, samples, or existing slitting tooling configurations to ensure seamless integration with current production lines.
Frequently Asked Questions
What tolerance can you achieve?
Our standard manufacturing tolerance is ±0.001 mm, while ultra-precision production down to ±0.0005 mm is available for demanding applications.
Can you manufacture according to samples?
Yes. We support both sample-based and drawing-based production and can manufacture replacement spacer rings compatible with existing tooling systems.
What materials are available?
Most spacer rings are manufactured from D2, H13, Cr12MoV, or other premium alloy tool steels depending on application requirements.
Can you provide custom sizes?
Yes. Outer diameter, inner diameter, thickness, material grade, surface finish, and heat treatment can all be customized.
Do you provide complete slitting tooling systems?
Yes. We supply complete slitting tooling packages including:
- Slitter knives
- Spacer rings
- Rubber bonded stripper rings
- Precision shims
- Separator discs
Sourcing all critical tooling components from a single supplier helps ensure full compatibility, simplified procurement, and more consistent slitting performance.
Can you manufacture replacement spacer rings for existing tooling systems?
Yes. We regularly manufacture replacement spacer rings according to customer drawings, samples, or existing tooling configurations, allowing customers to maintain original performance while reducing procurement costs and lead times.
