Slitting line maintenance guide

1. Keep the slitter tooling under control

Knife clearance, overlap, spacer accuracy and arbor condition are central to slitting quality. Check for burrs, chipped edges, uneven wear and incorrect setup before running a new material specification.

Store knives clean and dry. When changing tooling, record material grade, thickness, strip width, knife clearance and observed edge condition so future setups become faster and more consistent.

2. Inspect guiding, loop and tension sections

Side guides and centering devices should move smoothly and hold position without damaging strip edges. Loop pits and transition tables should be free from debris that can scratch strip surface or disturb tracking.

Tension pads, belts or tables must provide stable pressure across the strip pack. Uneven tension can show up as loose coils, telescoping, edge wave, scratches or inconsistent recoiling density.

3. Watch the recoiler and separator system

Recoiler mandrel expansion, separator discs, pressing arms and overarm support all affect final coil quality. Check mandrel surfaces, lubrication, hydraulic response and alignment during scheduled maintenance.

4. Daily inspection checklist

• Confirm guards, emergency stops and operator panels before startup.
• Check hydraulic pressure, oil temperature and visible leakage.
• Inspect slitter knives, spacers, arbor locking and separator discs.
• Clean scrap handling paths and confirm edge trim removal.
• Monitor coil shape, edge burr, strip tracking and abnormal noise.