The core of the heating system of Delonghi coffee machines (such as EC680/EC860/EC9155 models) is a stainless steel boiler or a copper heat exchanger, which is suitable for a power range of 300W-1500W, a temperature control accuracy of ±1°C, and a thermal efficiency of ≥90%. The core of the heating element of Delonghi coffee machines lies in precise temperature control + efficient heat conduction. In view of the characteristics of its models, it is recommended to give priority to the combination of copper heat exchanger + titanium alloy electrode, and match it with an intelligent self-cleaning function to cope with hard water environments. Regular maintenance can ensure that the life of the equipment is extended to more than 8 years while maintaining the stability of coffee production.
MOQ：1000PCS
Lead time：25days
Factory location: Zhongshan, Guangdong, China
Home appliances: electric kettles, instant water dispensers, air fryers, health pots, coffee machine heating bases.
Boiler-Based Systems (e.g., DeLonghi EC885)
Power: 1.8kW–3kW (residential) / 3kW–15kW (commercial).
Voltage: 110V/220V single-phase AC or 380V three-phase AC.
Material:
Boiler: Food-grade stainless steel 316L (corrosion-resistant, high thermal stability).
Heating Element: Nickel-chromium (NiCr) alloy (high-temperature oxidation resistance).
Temperature Control:
PID algorithm with ±1°C accuracy.
Dual thermostats (separate brewing and steam circuits).
Recovery Time: 30–45 seconds (after pulling a shot).
Thermoblock Systems (e.g., DeLonghi Dedica EC685)
Power: 1.2kW–1.8kW (compact residential machines).
Material: Aluminum thermoblock (lightweight, rapid heat transfer).
Features:
Integrated pressurestat for real-time brewing adjustments.
Pre-infusion control via flow meters.
Heat Exchanger (HX) Systems (e.g., DeLonghi La Specialista)
Power: 1.5kW–4kW (residential) / 4kW–12kW (commercial).
Material: Stainless steel 316L HX coil (dual-purpose steam + water heating).
Efficiency: Energy-saving design (no dual boilers), 20% lower energy consumption.
Precision Temperature Control
PID Algorithms: Maintain 92°C–96°C (±0.5°C) for optimal espresso extraction.
Separate Brewing/Steam Circuits: Prevent temperature fluctuations during milk steaming.
Rapid Heat Recovery
High-Flow Boilers: Recover to brewing temperature in <30 seconds (commercial machines like EC885).
Thermoblock Systems: Achieve brewing readiness in 15 seconds (compact models like EC685).
Durability & Safety
Stainless Steel Boilers: Resist scaling and corrosion (ideal for hard water areas).
Overheat Protection: Automatic shutdown at >120°C (CE/UL certified).
Water Level Sensors: Prevent dry boiling (IPX7 waterproofing).
Versatility
Steam Wand: Generates microfoam for latte art (adjustable steam pressure: 0.5–1.5 bar).
Pre-Infusion: Gradual water pressure build-up (5–10 bar) for even extraction.
Smart Features (Higher-End Models)
PID Tuning: Customizable Kp/Ki/Kd values for specific coffee blends.
Auto-Clean Cycle: Descaling reminders and automated flushing.
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