Transformer Silicon Steel Slitting Line

From Master Coil to Narrow Transformer-Core Strip Coils

The TRANFOVIA Transformer Silicon Steel Slitting Line prepares electrical steel master coils for downstream transformer core lamination production. The listed equipment family handles silicon steel from 0.15 to 0.5 mm thick, master-coil widths up to 1250 mm, coil weights from 2T to 10T and slitting speeds up to 120 m/min.

Slitting is a longitudinal process. A wide electrical steel coil is divided into narrower strips along the material travel direction, and the finished strips are rewound for later use in cut-to-length or transformer core cutting operations. For transformer manufacturers, this allows a wide incoming coil to be prepared into the strip widths required by different core designs.

Technical Parameters

Slitting Line vs. Cut-to-Length Machine

How Transformer Manufacturers Should Specify a Slitting Line

• Master coil width, inside diameter, outside diameter and maximum coil weight.
• Required finished strip widths and number of strips per setup.
• Electrical steel grade, thickness and coating requirements.
• Acceptable burr and edge condition.
• Rewinding tension and finished coil handling method.
• Workshop crane capacity, available floor space and preferred line direction.
• Plant electrical standard.

FAQ

1. What is the maximum listed master-coil width?

The 5T and 10T models are listed for master coils up to 1250 mm wide.

2. What electrical steel thickness can the line process?

The listed sheet thickness range is 0.15-0.5 mm.

3. What slitting speed is listed?

The listed speed range is 0-120 m/min.

4. What coil weights are available?

The listed family includes 2T, 5T and 10T coil-weight configurations.

5. What is the burr requirement?

The listed burr value for the three models is ≤0.02 mm.

6. How do I choose between the 2T, 5T and 10T models?

Selection should be based primarily on your incoming master-coil width and weight, together with the required finished strip widths. The 5T and 10T models cover coils up to 1250 mm wide, while the 2T model covers 100-500 mm master-coil width.

7. Is a slitting line the same as a transformer core cutting line?

No. The slitting line prepares narrow strip coils from a wide master coil. A transformer core cutting line then processes strip into individual core laminations with the required lengths and geometry.

8. What information should a transformer manufacturer provide for quotation?

Provide master-coil width, coil weight, ID/OD, silicon steel thickness, required finished strip widths, number of strips, edge/burr requirements, rewinding requirements and workshop electrical standard.

Based on the listed technical parameters, the cutting length accuracy can reach ±0.05 mm/m, and the cutting burr is ≤0.02 mm.