Induction Annealing System for Steel Strip

The induction annealing system for steel strip by LJInduction is engineered to meet the demands of high-speed, precision-controlled strip processing lines. Built on a fully digital platform and optimized for inline integration, this system ensures fast, uniform, and energy-efficient heating for cold-rolled and surface-treated steel strips.

Description

Induction Annealing System for Steel Strip

Reliable Thermal Processing for Modern Strip Lines

The induction annealing system for steel strip by LJInduction is engineered to meet the demands of high-speed, precision-controlled strip processing lines. Built on a fully digital platform and optimized for inline integration, this system ensures fast, uniform, and energy-efficient heating for cold-rolled and surface-treated steel strips.

At its core, the system utilizes advanced DSP+CPLD digital control architecture, enabling real-time frequency tracking, automatic load adjustment, and seamless resonance management. Whether for single-strip or multi-strip configurations, this induction annealing equipment for steel strip delivers consistent heating results across a wide range of material widths, thicknesses, and line speeds.

What Makes It Different?

High-Precision Digital Control

  • True full-digital mainboard with no analog modules

  • Instant startup (≤0.2s) using expert control algorithms

  • Optical fiber communication reduces signal interference on factory floors

Adaptability in Real-Time

  • Automatically tunes frequency and duty cycle based on coil and load feedback

  • Wide compatibility with series and parallel resonance, 0.5–150 kHz

  • Real-time integration with infrared pyrometers for closed-loop temperature correction

Industrial-Grade Reliability

  • Sealed Rittal-style cabinet with water–electric separation

  • Designed for harsh environments: dust, mist, and high-temperature resistant

  • Internal circulation cooling protects sensitive electronics from metal particle intrusion

User-Centric Integration

  • One-button operation via simplified HMI

  • Supports both potentiometer control and 0–10V machine signal input

  • Safety features include 36V low-voltage test mode, overcurrent and water fault protection

Technical Specifications

ParameterSpecification
Frequency Range0.5–150 kHz
Strip Width SupportUp to 1600 mm
Power Range100–1000 kW (according to requirements)
Temperature FeedbackInfrared pyrometer, impedance feedback
Cabinet DesignFully sealed, IP54
Control SystemDSP+CPLD full-digital control
CoolingWater-cooled, optional closed-loop

Engineered for Precision and Performance

LJInduction’s induction annealing machine for steel strip is ideal for clients who demand tighter temperature control, faster line speeds, and smarter energy usage. From automotive panel steel to high-strength alloy strips, our system enables flexible operation while reducing downtime and operator dependence.

If you’re seeking a reliable, scalable, and intelligent induction annealing system for steel strip, we’re ready to assist.

What is induction heating?

Benefit of using induction heating

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