The transformer core cutting machine is a specialized piece of equipment used in the manufacturing of transformers to cut electrical steel (silicon steel) sheets into precise shapes and sizes for transformer cores. These cores are essential for the transformer's magnetic circuit, and their quality directly affects the transformer's efficiency, performance, and energy loss.

We specialize in manufacturing high-precision transformer core cutting machines designed to improve efficiency, accuracy, and consistency in transformer production. With advanced technology, robust construction, and user-friendly operation, our machines deliver superior cutting precision, minimizing material waste and ensuring optimal core performance. We offer customized solutions to meet various transformer sizes and designs, backed by reliable after-sales support and competitive pricing. Our strict quality control and commitment to innovation make us a trusted partner for transformer manufacturers worldwide.

Wuxi Haoshuo Technology supplies Transformer Core Cutting Machines for CRGO step-lap cores and amorphous alloy transformer cores. Different machine configurations are available according to material thickness, strip width, lamination size, cutting pattern, transformer type and required production capacity.


Cutting Lines for Transformer Core Main Purpose

The transformer core cutting machine is designed to:

Cut silicon steel laminations with high accuracy.

Ensure consistent geometry for core assembly.

Improve production efficiency and reduce material waste.

Support automatic stacking and punching for streamlined manufacturing.


Core Cutting Line | Machines Key Features

• High Precision Cutting

Uses CNC control or servo systems to achieve accurate dimensions and angles.

• Automatic Feeding & Measuring

Automatically feeds the silicon steel sheets and measures length before cutting.


• Punching Functions

Some machines can punch holes or notches in the core pieces during the cutting process.


• Multi-step Cutting

Can produce different limb, yoke, and mitered cuts for transformer core assembly.


• Customizable Output

Supports various transformer designs (distribution transformers, power transformers, etc.).


Transformer Core Cutting Machines by Core Material

Different transformer core materials require different cutting and handling methods. Our main core cutting solutions include CRGO step-lap cutting lines and amorphous alloy core cutting lines.


Step-Lap Core Cutting Machine

The Step Lap Core Cutting Machine is designed to process grain-oriented silicon steel strips into transformer core legs, center limbs, yokes and other laminations.

The line integrates:

● Hydraulic decoiling
● Servo feeding
● V-notching
● Hole punching
● 45° cutting
● 135° cutting
● Conveyor transfer
● Automatic lamination collection and stacking

Available HJX300, HJX400 and HJX600 configurations process 0.23–0.35 mm CRGO, with strip widths ranging from 30 mm to 660 mm depending on the machine model.

The standard line provides length accuracy of ±0.2 mm and cutting burr of ≤0.02 mm.


Amorphous Core Cutting Machine

The Amorphous Core Cutting Machine is designed specifically for cutting and stacking thin amorphous alloy strips used in amorphous transformer cores.

Unlike conventional CRGO processing, amorphous material requires stable feeding and careful handling of multiple thin layers.

Available configurations support amorphous alloy widths of 140–232 mm, cutting lengths from 300 to 5000 mm, and material processing of up to 15 layers at 0.025 mm thickness per layer.

PLC control, servo feeding, touch-screen operation and automatic stacking help provide repeatable production for different amorphous transformer core dimensions.


Transformer Core Cutting Machine Selection by Application


Distribution Transformer Core Production

Distribution transformer manufacturers commonly require flexible production of multiple core sizes.

A programmable CRGO cutting line can produce different legs and yokes according to stored cutting parameters.


Power Transformer Core Production

Larger transformer cores may require wider CRGO processing capacity, longer laminations and greater material-handling capability.

Machine selection should therefore consider not only cutting width but also coil dimensions, lamination length and downstream stacking.


Step-Lap Transformer Core Production

For manufacturers producing step-lap cores, the Step Lap Core Cutting Machine provides programmable feeding, notching, punching and angular cutting for different step sequences.


Amorphous Transformer Production

Amorphous transformer cores require dedicated equipment capable of processing thin amorphous ribbon and multiple material layers.

A conventional CRGO cutting machine should therefore not automatically be selected for amorphous core production.


Why Choose Haoshuo for Transformer Core Cutting Equipment?


Different Core Material Solutions

Haoshuo supplies core processing equipment for CRGO laminated transformer cores and amorphous alloy transformer cores.


Machine Configuration Based on Drawings

Machine selection can be evaluated according to actual strip specifications, transformer core dimensions and lamination drawings rather than relying only on a standard machine size.


Integrated Processing Functions

Depending on the model, feeding, V-notching, punching, cutting, conveying and stacking functions can be integrated into one production line.


Complete Transformer Core Equipment Range

In addition to Transformer Core Cutting Machines, equipment is available for silicon steel slitting, transformer core stacking and wound core manufacturing, allowing buyers to plan different stages of the transformer core production process.


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shirley@transformermachines.com mischa@transformermachines.com
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