Industry-Verified Manufacturing Data (2026)

Evaporator Coil

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Evaporator Coil used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Evaporator Coil is characterized by the integration of Tubing and Fins. In industrial production environments, manufacturers listed on CNFX commonly emphasize Copper construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A heat exchanger component in a climate control system where refrigerant evaporates, absorbing heat from the surrounding air.

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Product Specifications

Technical details and manufacturing context for Evaporator Coil

Definition
The evaporator coil is a critical component within a climate control system's refrigeration circuit. Typically located in the air handling unit or indoor section, it consists of tubing (often copper or aluminum) arranged in a coil pattern with attached fins to increase surface area. As low-pressure, low-temperature liquid refrigerant enters the coil, it absorbs heat from the air blown across it, causing the refrigerant to evaporate into a gas. This process cools and dehumidifies the air before it is distributed throughout the controlled space.
Working Principle
Operates on the principle of phase-change heat transfer. Liquid refrigerant at low pressure and temperature enters the coil. Warm air from the conditioned space is forced over the coil's exterior by a fan. Heat from the air is transferred to the colder refrigerant, causing the refrigerant to boil and evaporate. This absorption of latent heat of vaporization significantly cools the air passing over the coil. The now gaseous refrigerant exits the coil to continue the refrigeration cycle.
Common Materials
Copper, Aluminum
Technical Parameters
  • Tube outer diameter (e.g., 9.52mm, 12.7mm) and fin spacing (FPI - fins per inch). (mm) Standard Spec
Components / BOM
  • Tubing
    Carries the refrigerant through the coil for heat exchange.
    Material: copper
  • Fins
    Attached to tubing to increase surface area for improved heat transfer with the air.
    Material: aluminum
  • Headers/Distributors
    Distribute refrigerant evenly into multiple parallel tube circuits and collect it at the outlet.
    Material: copper
  • U-Bends/Return Bends
    Connect straight tube sections to form a continuous serpentine coil path.
    Material: copper
Engineering Reasoning
0.3-4.2 MPa (3-42 bar) refrigerant pressure, -40°C to 120°C surface temperature
Copper tube burst pressure 27.6 MPa (276 bar) at 20°C, aluminum fin yield stress 110 MPa at 150°C
Design Rationale: Thermal fatigue from cyclic stress exceeding copper's endurance limit (89 MPa at 10⁷ cycles) due to 35°C-85°C daily temperature swings
Risk Mitigation (FMEA)
Trigger Refrigerant undercharge below 70% of design mass causing 15°C superheat increase
Mode: Localized dry-out with 200°C hotspot formation and copper-aluminum galvanic corrosion at 0.5 mm/year
Strategy: Install liquid line sight glass with 85% fill indicator and sacrificial zinc anodes at tube-fin joints
Trigger Airflow reduction below 0.15 m³/s per kW cooling capacity
Mode: Frost accumulation exceeding 5 mm thickness with 40% heat transfer reduction
Strategy: Implement adaptive defrost cycle triggered by 2.5 kPa differential pressure across coil

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Evaporator Coil.

industrial HVAC evaporator coil replacement copper aluminum evaporator coil manufacturing machinery cooling system evaporator coils commercial HVAC evaporator coil specifications heavy-duty evaporator coil BOM components

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Climate Control System
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HVAC Unit
View system integration details
Dehumidifier
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Dehumidification System
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 500 psi (34.5 bar) design pressure
flow rate: 0.5-5.0 GPM per circuit (1.9-18.9 L/min)
temperature: -40°C to 120°C operational range
refrigerant charge: Compatible with R-410A, R-134a, R-22 (legacy)
Media Compatibility
✓ Air conditioning systems ✓ Refrigeration units ✓ Heat pump applications
Unsuitable: Corrosive chemical processing environments
Sizing Data Required
  • Required cooling capacity (BTU/hr or kW)
  • Airflow rate (CFM or m³/h)
  • Entering air temperature and humidity conditions

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced pitting
Cause: Exposure to corrosive refrigerants, moisture ingress, or chemical contaminants leading to localized metal loss and refrigerant leaks.
Fouling and scaling
Cause: Accumulation of mineral deposits, dirt, or biological growth on coil surfaces, reducing heat transfer efficiency and increasing pressure drop.
Maintenance Indicators
  • Significant drop in cooling capacity or increased energy consumption
  • Visible frost buildup on coils during normal operation or audible hissing from refrigerant leaks
Engineering Tips
  • Implement regular coil cleaning with appropriate chemical solutions and maintain proper water treatment to prevent scaling and fouling.
  • Ensure proper refrigerant charge and monitor for moisture ingress to prevent corrosion, and consider protective coatings for coils in harsh environments.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ANSI/ASHRAE 15 - Safety Standard for Refrigeration Systems DIN EN 378 - Refrigerating systems and heat pumps
Manufacturing Precision
  • Tube wall thickness: +/-0.1mm
  • Fin spacing uniformity: +/-0.5mm
Quality Inspection
  • Helium leak test for coil integrity
  • Pressure test at 1.5x design pressure

Factories Producing Evaporator Coil

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

T Technical Director from Australia Jan 14, 2026
★★★★★
"Great transparency on the Evaporator Coil components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
P Project Engineer from Singapore Jan 11, 2026
★★★★☆
"The Evaporator Coil we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Germany Jan 08, 2026
★★★★★
"Found 16+ suppliers for Evaporator Coil on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

9 sourcing managers are analyzing this specification now. Last inquiry for Evaporator Coil from Vietnam (27m ago).

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Frequently Asked Questions

What are the main advantages of copper-aluminum evaporator coils in industrial applications?

Copper-aluminum evaporator coils offer excellent heat transfer efficiency, corrosion resistance, and durability. Copper provides superior thermal conductivity while aluminum reduces weight and cost, making them ideal for demanding industrial climate control systems.

How do I select the right evaporator coil for my machinery cooling system?

Consider your system's refrigerant type, required cooling capacity (BTU/hr), operating pressure, space constraints, and environmental conditions. Consult manufacturer specifications for tubing diameter, fin spacing, and material compatibility with your existing HVAC components.

What maintenance is required for industrial evaporator coils?

Regular cleaning to prevent fouling, inspection for corrosion or leaks, checking refrigerant levels, and ensuring proper airflow. In manufacturing environments, additional protection may be needed against chemical exposure or particulate contamination.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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