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Product Advantages
High-Precision Servo Control — Superior Cutting Accuracy
A servo motor external-encoder fully closed-loop dual length-measurement system, combined with an auxiliary feed mechanism, achieves a cutting length accuracy of ±0.2 mm at constant speed, an angular accuracy of ±0.1°, and a center limb flip-over angle coincidence deviation of ≤0.1 mm, ensuring consistent dimensions and joint accuracy for downstream core stacking.
Full Siemens Drive System — Stable and Reliable Performance
All stations — feeding, shearing, and punching — are driven by Siemens high-response, high-inertia servo motors. The motion control system delivers stable, reliable operation, high production throughput, a low failure rate, and reduced long-term maintenance costs.
Cemented Carbide Tooling — Long-Lasting Durability
Shear blades, V-punch dies, and hole-punch dies are all made from Zhuzhou Diamond-brand cemented carbide (tungsten carbide), achieving 200,000–300,000+ strokes per sharpening, significantly reducing tool change frequency and unplanned production stoppages.
No Buffer Pit Required — Simple, Low-Cost Installation
An innovative buffer board design uses multi-point photoelectric sensors to monitor sheet position in real time and automatically match feed speed to uncoil speed. No excavation of a buffer pit is needed, substantially reducing foundation construction costs while enabling automatic threading.
Touch Screen HMI — Intuitive and Easy Operation
A Siemens touch screen with a graphical interface allows operators to quickly input and modify production parameters, with precise control of output quantity by sheet count or by transformer unit. This reduces operator skill requirements and improves production management efficiency.
Multi-Step Process Compatibility — Wide Adaptability
Supports transverse and longitudinal 3-step, 5-step, and 7-step progressive stacking processes, flexibly adapting to different core structures and meeting the sheet processing requirements of various dry-type and oil-immersed transformer cores.
Product Applications
The HJ-DZ-440 is primarily used in the transformer manufacturing industry across the following scenarios:
Medium and Large Power Transformer Core Sheet Processing: Suitable for cutting large-format laminations with core limb lengths of 770–2400 mm and widths of 80–440 mm, meeting the production demands of high-capacity power transformers.
In-Line Stacking Line Integration: Directly connects to ZXD-series in-line core stacking equipment, enabling simultaneous shearing and stacking and eliminating intermediate hoisting and transfer steps, significantly boosting overall production efficiency.
Standalone Offline Shearing: Can also operate as an independent shearing machine; finished columns are transferred to the stacking process manually or via conveyor, maintaining compatibility with conventional production workflows.
Multi-Variety Core Sheet Production: Supports sheet processing for 3-limb, 5-limb, and other core configurations, adaptable to dry-type, oil-immersed, energy storage, and other transformer types.
