|
JY-400 Double Shear Three Punch Cut-to-Length Line (Reverse Stacking Type)
High-Efficiency Transformer Core Lamination Production Line
The JY-400 Double Shear Three Punch Cut-to-Length Line (Reverse Stacking Type) is a fully automatic production system designed for high-precision processing of grain-oriented silicon steel coils into transformer core laminations.
This advanced machine integrates feeding, dual V-notching, hole punching, shearing, automatic sorting, and reverse stacking (magnetic suction system) into one continuous production line, significantly improving efficiency and stacking accuracy.
It is widely used for producing step-lap transformer cores, EI laminations, and mitered core sheets for medium and large transformer manufacturers.
Product Overview
This reverse stacking silicon steel cut-to-length line is specially designed to:
Process electrical steel coils into precise transformer laminations
Support full miter, half miter, and straight joint designs
Improve stacking quality through automatic magnetic reverse stacking
Compared with traditional lines, this machine provides higher automation, better stacking accuracy, and reduced manual handling.
Key Features
Double Shear + Three Punch Advanced Structure
2 × V-notch punching units
1 × hole punching unit
2 × angle shearing units (45° & 135°)
This design enables multi-step processing in a single cycle, improving production efficiency.
Reverse Stacking System (Core Advantage)
Magnetic suction stacking system
Automatic sorting and layering
Improved stacking alignment accuracy (±5 mm)
Reduced manual labor and errors
This is especially suitable for high-end transformer core production.
High Precision Servo Control
Delta PLC + servo motor system
High-speed response and precise positioning
Stable and low-noise operation
Touchscreen HMI for easy operation
Wide Processing Range
Thickness: 0.18 – 0.35 mm
Width: 40 – 410 mm
Length: 400 – 2500 mm
Hole diameter: 10 – 24 mm
V-notch depth: up to 220 mm
Suitable for various transformer core specifications.
High Accuracy & Low Burr
Length tolerance: ±0.2 mm/m
Angle tolerance: ≤ ±0.1°
Burr: ≤ 0.02 mm
Ensures tight lamination stacking and better transformer performance.
High Production Efficiency
Cutting speed: ≥ 52 pieces/min
Feeding speed: up to 2000 mm/s
Continuous automatic operation
Ideal for large-scale industrial production.
Main Components
Double-head hydraulic decoiler (180° rotation)
Inclined feeding guide system
Servo feeding & length measuring unit
Dual V-notch punching machines
Hole punching machine
Double angle shearing units
Conveyor with magnetic positioning
Reverse stacking system (magnetic suction type)
Full-line automatic width adjustment system
Pneumatic system (AirTAC)
Electrical system (Delta + Schneider)
Advantages
Higher efficiency with double shear three punch design
Reverse stacking improves lamination alignment
Reduced labor cost and manual handling
Stable servo system ensures long-term operation
Flexible for different transformer core designs
High precision reduces transformer core loss
Applications
Power transformer manufacturing
Distribution transformer production
Dry-type transformer factories
Electrical steel processing plants
Transformer core lamination workshops
