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Non-oriented Electrical Steel (NOES) Slitting Line Goes In-House: 1300mm × 1.0mm–10 Ton
Nov 11,2026
A motor lamination production base has commissioned a new non-oriented electrical steel (NOES) slitting line specified at 1300mm × 1.0mm–10 ton, with a line speed of up to 200 m/min. The key change is simple: NOES slitting is no longer outsourced. It is now done in-house to supply the base’s own stator and rotor assembly stamping operations with stable, precision slit strip.
Why bring slitting in-house?
Slitting is the first precision step in motor lamination production. Outsourced slitting creates several practical problems:
Width accuracy and burr control can vary from batch to batch;
- Delivery is controlled by the subcontractor’s schedule, so the stamping line may wait for strip;
- If incoming strip fails inspection, transport, re-checking, and replacement all take time;
- Quality is harder to trace when slitting and stamping are handled by different parties.
With in-house slitting, width, burr, and flatness are set to the stamping die’s requirements. Slitting and stamping are linked under one roof, so problems can be found and corrected quickly. Both delivery and precision become more controllable.
What can this line handle?
- Coil width: up to 1300mm, covering common NOES coil formats;
- Coil thickness: up to 1.0mm, suitable for common motor lamination grades;
- Coil weight: up to 10 tons, reducing coil changes;
- Slitting speed: up to 200 m/min for high efficiency;
- Precision target: width tolerance in the ±0.05mm class, with burr and camber controlled to meet stator and rotor stamping requirements.
Why 200 m/min matters
Speed alone is not the goal. The real point is maintaining cut quality at high speed. NOES is silicon-alloyed and abrasive, so cutting edges wear faster. If blade clearance and tension are not well controlled, burrs grow and the strip can track off-line. Excessive burr affects core stacking and insulation; poor strip straightness affects stamping feed and lamination dimensions.
This line uses precision knife shafts and stable tension and recoiling control to deliver strip that is consistent in width, low in burr, and straight in feed—ready for the stator and rotor stamping process.
Benefits for downstream stamping
- Less waiting: in-house slitting makes stamping scheduling more flexible;
- Less waste: width and burr are controlled to die requirements, reducing trial runs and scrap;
- Better traceability: the quality chain from master coil to slit strip to lamination is clearer;
- Reliable delivery: no dependence on outside slitting schedules, so stator and rotor assembly stamping delivery is more stable.
In one sentence: slitting stays in-house, precision stays under control, and delivery stays on schedule. With this 1300mm × 1.0mm–10 ton, 200 m/min NOES slitting line, the motor lamination production base moves from “waiting for slit strip” to “feeding strip at the stamping line’s pace”—securing the first quality gate for downstream stator and rotor assembly stamping.
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