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JY-400 Double Shear Double Punch Silicon Steel Cut-to-Length Line
High-Speed Transformer Core Lamination Production Machine
The JY-400 Double Shear Double Punch Cut-to-Length Line is a high-efficiency, fully automatic production system designed for processing silicon steel coils into precision transformer core laminations. It integrates feeding, punching, V-notching, shearing, sorting, and stacking into one continuous workflow, making it ideal for medium and large transformer manufacturers.
This machine supports the production of step-lap transformer cores, full miter joints, half miter joints, and straight joints, ensuring high accuracy, low burr, and stable operation.
Product Overview
The JY-400 model is an upgraded solution compared to standard cut-to-length lines, featuring:
Wider processing capacity (up to 410mm)
High-precision servo control system
Fully automated punching + shearing integration
Continuous high-speed production
It is widely used in power transformer, distribution transformer, and electrical steel processing industries.
Key Features
High Precision Servo Control System
Equipped with Delta PLC, servo motors, and HMI touchscreen
Accurate feeding, positioning, and cutting
Stable performance with low noise and vibration
Intelligent control system for flexible production Double Shear + Double Punch Configuration
1 × V-notch punching unit
1 × hole punching unit
2 × angle shearing units (45° & 135°)
This configuration enables multi-process operations in one pass, improving efficiency and reducing manual handling.
Wide Processing Range
Material thickness: 0.18 – 0.35 mm
Material width: 40 – 410 mm
Cutting length: 400 – 2500 mm
Hole diameter: 10 – 24 mm
V-notch offset: ±30 mm
Suitable for various transformer core designs and production needs.
High Accuracy & Low Burr
Length tolerance: ±0.2 mm/m
Angle tolerance: ±0.1°
Shearing burr: ≤0.02 mm
Punching burr: ≤0.02 mm
Ensures tight lamination stacking and improved transformer performance.
High Production Efficiency
Speed: up to 60 pieces/min
Continuous automatic feeding and cutting
Integrated stacking and sorting system
Main Machine Components
Hydraulic Decoiler (single-head, up to 1.5T load)
Inclined Feeding Guide System
Servo Feeding & Length Measuring Unit
V-Notch Punching Machine
Hole Punching Machine
Double Angle Shearing Units (45° & 135°)
Conveyor Table with Magnetic Assistance
Automatic Upper & Lower Stacking Separator
Material Collection Trolley
Full-Line Automatic Width Adjustment System
Pneumatic Control System (AirTAC)
Electrical Control System (Delta + Schneider)
Technical Advantages
Fully automatic production reduces labor costs
High-speed servo system improves efficiency
Precise burr control reduces core loss
Flexible programming for multiple lamination types
Automatic width adjustment for different coil sizes
Stable long-term industrial operation
Applications
The JY-400 silicon steel cut-to-length line is widely used in:
Power transformer manufacturing plants
Distribution transformer production lines
Dry-type transformer factories
Electrical steel processing centers
Transformer core lamination workshops
Why Choose JY-400?
Higher capacity than JY-300 (up to 410mm width)
Proven performance in transformer core production
International brand components ensure durability
Customizable solutions for different markets
Ideal for scaling production and upgrading automation
