CRGO Slit Coils

Evergreen specializes in manufacturing Toroidal Cores in c.r.g.o. materials for low, medium and high frequency, CTs, PTs and various types of Transformers. We are devoted to the development of high-efficiency energy-saving and excellent slit coilsperformance magnetic cores. As a reward of its continuous efforts, the company has been the leader of magnetic core manufacture in India.

Slitting is the first and foremost manufacturing process in order to obtain any type of cut lamination. Indeed, it is the heart of the whole manufacturing process and to ensure it continuous beats, it should be tuned with fine accuracy and high quality standard.

Slitting process is the origin where quality standard starts, and subsequently it is maintained by the different types of cutting process. Quality of the material is always on top priority at Evergreen and thus we stress more on slitting process for better quality in every single process.

Evergreen has the facilities to cut strips from the entire range of CRGO coils used by the Electrical Steel Industry, with high permeability in thickness ranging from 0.18 to 0.35mm.

At Evergreen, we have set up essential quality check-points during slitting process to ensure that the burr level of material is well within the tolerance. The precise slitting process can undoubtedly slit the material without any generation of scrape. (I.e. slitting of a coil of 120 mm in two different 60 mm coils is promising task).

Evergreen produces Toroidal Cores in many different dimensions made to order to customer specification.
Minimum strip width: 10mm
Minimum inside diameter: 20mm
Maximum outside diameter: 1400mm
Core can be manufactured in material grade ZdKH, MoH, M4 as per the specification of the customer.
Cores can be manufacture in material thickness 0.18mm, 0.23mm, 0.27mm, 0.30mm and 0.35mm.
Cores are available in epoxy coating with varnish and bare cores according to customer specification.

Electrical Testing

All cores, unless otherwise state, are individually tested to the standard guarantee specifications. Special test conditions, when required, can be applied and guaranteed to suit customers' individual requirements.

It is well known that handling and processing of Grain Oriented Electrical Steel (c.r.g.o.) can create undesirable stresses within the metal internal structure and at the cut edge. Therefore cutting quality is constantly controlled with latest technology equipments.

Carbide slitting lines are used in order to achieve a minimum formation of burr in the cutting edge if coils.