Stainless Steel Slitting Lines & Coil Processing Equipment
Stainless steel is the most surface-critical material in coil processing. A scratch, rub mark, or pickup on an SS 304 or 316 coil is visible in the finished product and can turn premium material into rejected stock. Processing lines for stainless steel are therefore configured differently from mild steel lines — from roll coverings to strip separation to tension pads.
Friend Engineering Works has manufactured slitting lines and cut to length lines for stainless steel processors since 1994. Our SS-configured lines handle grades 304, 316, 430 and 201 in thicknesses from 0.3mm to 6mm, with the surface-protection features this material demands.
What Makes Stainless Steel Processing Different
- Surface protection: polyurethane-covered rolls, felt pads and non-marking guides at every strip contact point
- Interleaving: provision for paper or plastic film interleaving during recoiling to prevent coil-wrap rubbing
- Higher slitting forces: austenitic grades work-harden, so knife clearances and arbor rigidity are set for harder material
- Edge quality: burr-free edges matter more — SS strip is often visible in the final product (appliances, kitchenware, elevators)
- Cleanliness: lines are kept free of carbon-steel debris to avoid contamination and rust staining on stainless surfaces
Recommended Line Configuration for Stainless Steel
| Parameter | Typical SS Configuration |
|---|---|
| Thickness range | 0.3mm – 6mm |
| Grades | SS 304, 316, 430, 201 |
| Coil width | Up to 1600mm |
| Slitting accuracy | ±0.1mm, burr-free |
| Surface protection | PU-coated rolls, felt tension pads, paper/film interleaving |
| Recoiler | Expanding drum with separator discs and interleaving attachment |
Who Uses Our Stainless Steel Lines
Stainless steel service centers, kitchenware and appliance manufacturers, elevator panel producers, pipe and tube mills making SS tubes, and precision component stampers. For tube-grade strip, our slitting lines hold the tight width tolerance that ERW tube mills need for consistent weld seams.
Recommended Equipment
- Slitting Line — Friend Engineering Works slitting lines are designed to ensure the highest standards of quality and productivity while processing different materials.
- Cut to Length Line — We manufacture advanced Cut to Length Lines for uncoiling, straightening, gauging, cross-cutting to length, and stacking work.
- Recoiler Machine — Our recoiler machines provide consistent tension control for rewinding processed metal strips.
Frequently Asked Questions
Can the same slitting line process both stainless steel and mild steel?
Mechanically yes, but it is not recommended for surface-critical SS work. Carbon steel debris embedded in rolls can stain stainless surfaces, and MS-configured lines usually lack interleaving and non-marking contact surfaces. Processors running both materials typically keep a dedicated SS line or fit the line with removable protective roll sleeves.
What thickness of stainless steel can your slitting lines process?
Our stainless steel slitting lines are typically configured for 0.3mm to 6mm thickness. Thinner foil gauges and heavier plate are possible as custom configurations — share your specification for a detailed proposal.
How is scratch-free handling achieved on an SS line?
Every point where the strip touches the machine is treated: polyurethane or rubber-covered rolls, felt-lined tension pads, non-metallic strip guides, and paper or film interleaving at the recoiler. Loop pits are lined so the strip loop never drags on bare steel or concrete.