Slitting is not just a preparatory step in transformer core manufacturing it’s a performance-defining process. The precision with which Cold Rolled Grain Oriented (CRGO) coils are slit determines stacking accuracy, magnetic alignment, and ultimately, transformer efficiency.
For OEMs that can’t afford tolerance drift or material waste, Sarjani Coretech has become the trusted partner. With advanced slitting lines, mill-grade traceability, and a deep understanding of CRGO behaviour, Sarjani delivers slit coils that OEMs can rely on batch after batch.
Here are five reasons why OEMs across India trust Sarjani for their CRGO slitting needs:
1. Tight Tolerance Slitting Every Time
Transformer efficiency starts at the coil. Sarjani’s high-precision slitting lines are calibrated to deliver narrow width tolerances with minimal burr and edge deformation. Whether the requirement is 20 mm or 300 mm slit width, Sarjani ensures consistency batch after batch ensuring uniform magnetic flux and reduced core losses during operation.
2. Built to Handle Bulk Without Compromise
Handling bulk CRGO orders shouldn’t mean compromising on quality. Sarjani’s infrastructure is designed for high-volume throughput while maintaining quality control at every stage. With automated uncoiling, tension control, and scrap management, Sarjani delivers large-scale slit coil consignments without delay or deviation.
3. Traceability from Coil to Core
Each coil processed at Sarjani is tagged with batch-level traceability—from mill origin and inspection certificate to final slit size and dispatch log. This level of documentation is vital for OEMs operating in quality-sensitive markets or exporting to regulated geographies. If compliance matters, Sarjani makes the paperwork seamless.
4. Expertise in Handling High-Grade CRGO
Sarjani regularly works with various CRGO grades including Hi-B, Laser Scribed, and domain-refined steel. Their team understands the nuances in handling these sensitive materials from preventing surface scratches to minimizing interlaminar insulation damage. OEMs rely on this know-how to ensure their cores meet both performance and reliability benchmarks.
5. OEM-Centric Service and Customization
Sarjani offers slit coil services that adapt to the OEM’s internal production lines. Whether it’s specific slit widths, packaging formats (eye to sky, eye to wall), or staggered delivery schedules—Sarjani aligns with customer needs. This flexibility, combined with fast turnaround times, makes them a trusted long-term partner for many transformer manufacturers.
Why CRGO Slitting Can’t Be an Afterthought
A transformer core is only as efficient as the lamination it’s built from. Poor slitting leads to burrs, stacking gaps, and increased no-load losses. That’s why Sarjani’s investment in slitting technology, quality assurance, and process optimization directly benefits the OEMs that depend on them.
From standard widths to tight-tolerance cuts for mitred laminations, Sarjani ensures that what leaves their shop floor is ready to go straight into assembly with zero rework required.
Sarjani Coretech. From Coil to Core, No Compromise.
If you’re an OEM looking for consistent, quality-assured CRGO slitting services, it’s time to talk to Sarjani. Because transformer performance starts long before winding begins it starts at the slit.