Silicon Steel Slitting Lines are advanced coil processing systems designed specifically for cutting electrical steel (silicon steel) into precise narrow strips. These lines are engineered to maintain the highest edge quality, surface integrity, and dimensional accuracy, which are critical for the electrical and transformer steel industry. With speeds up to 300 m/min and advanced back-tension control systems running up to 800 m/min, they ensure smooth strip handling and consistent cutting performance. The lines integrate automation, robotics, and safety-focused ergonomics to maximize productivity while reducing manual handling, even for the thickest and hardest grades of silicon steel.

Key Features & Advantages

High-Speed Capability: Operating at up to 300 m/min, with back-tensioning devices capable of running at speeds up to 800 m/min for optimal coil winding control.

Precision Slitting: Double slitter and turnstile configurations, combined with high-pressure tooling locking, ensure perfectly aligned and burr-free edges.

Back Tensioning Without Felt Pads: Utilizes driven rollers or belt bridle systems for tension control, preserving the surface finish of sensitive electrical steel strips.

Automated Tooling Exchange: In-house designed robotic slitter head tooling exchange systems handle separator arbor and slitter head changes quickly and safely, including knife cleaning and edge inspection.

Fully Automated Setup: Line components are automatically configured based on production data from upper-level IT systems, eliminating manual adjustments and ensuring repeatable accuracy.

Fast Strip Threading & Scrap Removal: Integrated threading solutions and rapid scrap sections allow for quick coil setup and efficient removal of defective or excess strip lengths.

Flexible Packaging Options: Off-line OD banding can be performed manually, semi-automatically, or fully automatically, and slit coils can be packaged and palletized with varying automation levels.

Safety & Ergonomics: Designed with operator well-being in mind—no manual strip handling is required, even for heavy, thick strips. Maintenance access is optimized for safety and ease.

High Surface Quality: Thanks to precision slitting heads and clean back-tension control, slit strips maintain their electrical and aesthetic properties without scratches or dents.

Technical Specifications

Line Speed: 0 – 300 m/min (slitting operation)

Back-Tension Capacity: Up to 800 m/min

Tension Unit Types: Felt plate, belt bridle, or driven rolls

Slitter Configurations: Double slitter / turnstile

Automation: Robotic tooling exchange, automated component setup, integrated scrap removal

Packaging: OD banding (manual, semi-auto, or automatic), coil packing and palletizing

Safety Systems: No manual strip handling, ergonomic maintenance access

Product Instructions

The process begins by loading the silicon steel coil into the uncoiler, where it is securely clamped and prepared for threading. The strip passes through a tension control unit—either felt plate, belt bridle, or roller type—to ensure consistent tension before entering the slitter head. High-precision knives, locked with high-pressure systems, cut the strip into multiple narrower coils (mults) according to the required widths. Back-tension devices maintain tight and even winding, eliminating surface defects. Separator arbors organize the slit strands before they are rewound into finished coils. Robotic systems can quickly change tooling, clean knives, and inspect edges without operator intervention. Scrap management systems remove unwanted strip sections efficiently. Finally, finished slit coils are transferred to packing and palletizing stations for banding, labeling, and storage or shipment.

Applications & Industries

Silicon Steel Slitting Lines are widely used in:

Transformer Manufacturing – Processing core laminations with tight tolerances and high surface quality requirements.

Electrical Equipment Production – Producing slit strips for motors, generators, and high-efficiency electrical machinery.

Automotive Sector – Processing electrical steel for hybrid and electric vehicle motors.

Steel Service Centers – Offering precision slitting services for electrical steel suppliers and manufacturers.

Target Customers

These lines are ideal for companies that demand:

Consistent high-quality slitting for electrical/silicon steel

High productivity with minimal downtime through automation

Safe, ergonomic operation with reduced manual handling

Surface finish preservation for premium electrical performance

Integration into modern, IT-driven production environments