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Energy service

SREE Electrical Equipment

For transformer cores

SREE designs and manufactures complete slitting & cut to length lines for transformer cores. Our lines combine high precision, high speed and practical automation to help you upgrade core manufacturing with confidence.

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Trusted by the World's Leading Brands

Who we are

Precision Manufacturing
Evolving Since 1997

Rooted in China’s manufacturing ecosystem and serving global markets, SREE develops high-performance silicon steel processing equipment for demanding industrial applications.

By combining in-house engineering, automation expertise and system integration capability, we deliver production lines that compete on performance, reliability and long-term cost.
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Who we are

From Coil to Core Turnkey Iron?Core Automation

We build production systems that help transformer and motor manufacturers make iron cores with consistent quality at scale.

By combining process engineering, automation, and line integration, we reduce manual dependence and make performance repeatable—shift after shift, product after product.

The goal is simple: higher OEE, lower variability, and a line you can trust.

Who we are

Explore Our Popular Projects

SRHJ400-223C

Transformer-core cut-to-length line with upper & lower log stacking arms. The upper arm stacks 2 logs and the lower arm stacks 3 logs, forming 5 logs (2 yokes, 2 side legs, 1 center leg) for a complete core lamination in one assignment.
SRHJ400-223G

High-speed silicon steel sheet cut-to-length line for transformer cores, integrating shearing, V-notching, hole punching and pre-stacking. Designed for high precision and stable high-throughput production.
SRJD400-224G

An intelligent CRGO core lamination & cutting line integrating unwinding, feeding, punching/notching, pin-positioning pre-stacking and dual-robot core lamination. It can laminate two CRGO cores simultaneously in full “日” shape or “E+I” shape.
SRJD400-214G An intelligent CRGO core lamination & cutting line integrating unwinding, feeding, punching/notching, pin-positioning pre-stacking and dual-robot core lamination.

It can laminate two CRGO cores simultaneously in full "H" shape or "E+I" shape.

CRGO Core Lamination & Cutting Line

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SRHJ400-223C An intelligent CRGO core lamination & cutting line integrating unwinding, feeding, punching/notching, pin-positioning pre-stacking and dual-robot core lamination.

It can laminate two CRGO cores simultaneously in full "H" shape or "E+I" shape.

Silicon Steel Sheet Cut-To-Length Line

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SRHJ400-223C An intelligent CRGO core lamination & cutting line integrating unwinding, feeding, punching/notching, pin-positioning pre-stacking and dual-robot core lamination.
It can laminate two CRGO cores simultaneously in full "H" shape or "E+I" shape.

Silicon Steel Sheet Cut-To-Length Line

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Technology Behind Our Transformer Core Lines

Low?Burr Slitting

Rigid knife stands, controlled tension and precise settings help you achieve consistently low burr levels.

High-speed cut to length

High-stroke cutting sections and stable feeding help you increase laminations per minute.

Flexible V?Notching and Punching

Configurable notching and punching heads support different step-lap patterns and window designs.

Automatic Stacking Systems

We have two stacking solutions: integrated robot arms for in-line assembly and dedicated machines for high-volume production.

Technology Behind Our Transformer Core Lines
Custom grooving details

Transformer Cores We Focus On

Core programs & production scenarios

Transformer performance starts with lamination consistency. We design silicon?steel processing and automation solutions for manufacturers who need repeatable core quality—stable edge condition, predictable geometry, and clean stacking—so results stay consistent from the first batch to long?run production.

From slitting and cut?to?length/punching to automated stacking and line integration, we engineer each project around your core design and takt time. The goal is simple: higher efficiency, tighter precision, and lower total operating cost—without relying on constant manual adjustment.
Transformer Cores We Focus On
Transformer Cores We Focus On

Key Elements of a Reliable Core Line

Precision

Low?burr cutting and stable tolerances help laminations stack cleanly and keep core quality consistent across shifts and operators.

Efficiency

High?throughput processing and automation reduce bottlenecks, improve OEE, and shorten changeovers—so output scales without scaling labor.

Reliability

In?house core components, remote diagnostics, and turnkey responsibility reduce downtime risk and protect long?term performance after installation.
Case Study

International Client Case Studies

Trusted

Our Qualifications & Certifications

CE Certificate

CE Certificate

CE Certificate

CE Certificate

SREE. All in one line.

Built on demand.

SREE brings your core line into one connected flowfrom coil to finishedstacks. Configure modules by capacity, layout, and core design,then scalewith stable precision and uptime.

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Have a project in mind?
Send your specs and we’ll connect you with the right engineer.