Custom Slitting Line Tooling for Precision Galvanized Steel Coil Processing | ±0.001mm Tolerance
Customer Background
A European metal processing customer required a customized set of slitting line tooling for high-precision galvanized steel coil processing.
The customer needed a complete tooling set including rubber bonded spacer rings and roll shear knives with extremely tight dimensional requirements to ensure stable strip width control, accurate coil slitting, and consistent production quality.
Because the tooling operates continuously under high-speed slitting conditions, the customer required not only accurate dimensions but also excellent flatness and parallelism to maintain long service life and reliable cutting performance.
Customer Requirements
The customized slitting line tooling included:
Rubber Spacers
- 10 pcs: 290 × 210 × 20 mm
- 100 pcs: 290 × 210 × 10 mm
Roll Shear Knives
- 36 pcs: 290 × 210 × 10 mm
Application:
Slitting galvanized steel coils
Required precision:
- Dimensional tolerance: ±0.001 mm
- Flatness: ≤0.002 mm
- Parallelism: ≤0.002 mm
Such strict requirements demand precise machining processes and strict quality inspection throughout production.
Our Solution
Based on the customer’s application requirements, we recommended LD material for the slitting knives.
LD is widely used for precision coil slitting applications because of its:
- Excellent wear resistance
- Stable dimensional performance
- Good toughness for continuous cutting operations
- Reliable performance when processing galvanized steel coils
By selecting the appropriate material grade and optimizing the machining process, we helped the customer achieve the required balance between:
- Cutting performance
- Tool life
- Dimensional stability
- Production efficiency
Precision Manufacturing Process
To achieve the customer’s ultra-tight tolerance requirements, every component was manufactured under controlled precision processes.
Key manufacturing controls included:
- Precision grinding for thickness and diameter accuracy
- Strict control of parallelism and flatness
- Multiple inspection stages during machining
- Final dimensional verification before shipment
Inspection focus:
| Item | Requirement |
|---|---|
| Dimension tolerance | ±0.001 mm |
| Flatness | ≤0.002 mm |
| Parallelism | ≤0.002 mm |
The final tooling set was inspected to ensure consistency between individual components and reliable installation on the customer’s slitting line.
Results
The customized slitting line tooling successfully met the customer’s precision requirements and provided a reliable solution for galvanized steel coil processing.
Benefits delivered:
✓ Stable strip width control
✓ Improved cutting consistency
✓ Reduced adjustment time during production
✓ Reliable performance for continuous coil slitting operations
This project demonstrates our capability in manufacturing precision slitting knives, spacer rings, and customized slitting line tooling for demanding industrial applications.
Custom Slitting Line Tooling Manufacturing Capability
We provide customized:
- Slitting knives
- Rubber spacers
- Separator discs
- Spacer rings
- Complete slitter tooling sets
Available customization:
- Diameter
- Thickness
- Bore size
- Material selection
- Surface treatment
- Tight tolerance requirements
For customers requiring high-precision slitting line tooling for steel coil, stainless steel, aluminum, and other metal processing applications, we provide manufacturing solutions based on your drawings and production requirements.
Contact us for a technical review of your slitting tooling requirements.
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