Chain Heat Treatment System

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ENRX chain heat treatment systems combine induction hardening and tempering into a fully in-line, continuous process that transforms chain from raw links into hardened, tempered and ready-to-use products. The system supports selective heating of chain ‘schenkels’, ensuring superior ductility and optimal mechanical properties.

Induction heating provides localized, even heat input with minimal surface scaling—an advantage over furnace heating. A typical ENRX Induction system processes approximately 1000 kg per hour of ø5–ø34 mm chain, while requiring only around 7.5 meters of vertical space.

The system integrates optical heat sensing, advanced control panels, multilingual software, automated loading/unloading, and coil designs engineered to prevent knots and tangling. Two independent cooling circuits (for heaters and for quenching) ensure reliability even under pressure fluctuations. Optional filtration systems continuously remove scale from quench water.

The solution is modular and customizable for specific chain types, sizes and production capacities, with stored preset data for more than 100 chain variations.

  • • In-line hardening and tempering in one continuous system
  • • Selective schenkel heating for premium mechanical properties
  • • High throughput: approx. 1000 kg/hour (ø5–ø34 mm)
  • • Advanced optical heat sensors for precise temperature control
  • • control panel with programmable presets
  • • Coil designs with guiding cones and control plates to prevent chain tangling
  • • Two independent cooling systems for heater and quench circuits
  • • Compact installation height (~7.5 m)
  • • Automated loading and unloading
  • • Designed for easy coil changes between chain size ranges
  • • Produces premium-grade chain that meets demanding global industry standards
  • • Minimal surface scaling and superior heating uniformity
  • • High productivity with smooth, continuous operation
  • • Reduced labor, storage needs and handling time
  • • Operational flexibility for multiple chain sizes and types
  • • Low maintenance and robust operation under varying water pressures
  • • Improved energy efficiency compared to furnace systems
  • • High repeatability and consistent process quality

Induction hardening and tempering of chains used in:

  • • Lifting and hoisting equipment
  • • Offshore and marine operations
  • • Logging and forestry machinery
  • • Shipping and cargo handling
  • • Construction and mining industries
  • • Fisheries and heavy-duty industrial applications

ISO-certified production facilities and full traceability.

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