Industrial Refrigeration Evaporators: Technical Selection & OEM/ODM Supply
Industrial refrigeration evaporators (unit coolers, freezer evaporators, and shell-and-tube heat exchangers) operate as primary liquid-to-vapor thermal absorption units within closed-loop vapor compression circuits. Engineered for continuous duty under severe frosting and corrosive operating regimes, these units serve:
Target Buyers: Cold storage EPC contractors, industrial refrigeration system integrators, OEM chiller manufacturers, and food processing facility engineers.
Operational Purpose: Rapid fluid and ambient air heat extraction with minimal spatial footprint and low auxiliary fan power draw.
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Chilled Water EvaporatorThe chilled water evaporator is a core heat exchange component of the chilled water refrigeration system, focusing on serving scenarios such as chilled water cooling in small factories, chilled water -
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Industrial Refrigeration EvaporatorThe industrial refrigeration evaporator is the core heat exchange terminal of the industrial refrigeration system, specially designed for industrial scenarios such as small factory production
Product Types & Selection Matrix
Selecting the appropriate evaporator configuration depends on system operating temperature, spatial constraints, and required defrost technology.
|
Product Series |
Operating Temp. |
Primary Application |
Structural / Coil Characteristics |
Key Selection Criteria |
|
Industrial Cold Storage Evaporator |
+5 °C to -25 °C |
Produce warehouses, distribution hubs |
Dual-discharge or single-side blow, heavy-duty hot gas or electric defrost circuits. |
Room volume, product heat respiration load, door cycle frequency. |
|
Blast Freezer / Tunnel Evaporator |
-30 °C to -45 °C |
Individual Quick Freezing (IQF) lines, meat/fish freezing |
Variable fin pitch (8 mm - 12 mm), external static pressure fans (>100 Pa). |
Freezing rate (kg/h), delta-T constraints, mass velocity. |
|
Chilled Water / Shell-and-Tube Evaporator |
+2 °C to +15 °C |
Central chillers, beverage/dairy cooling |
Baffled shell layout, inner-grooved seamless tubing, removable end covers. |
Mass flow rate (m³/h), entering/leaving fluid temperature, fouling factor. |
|
Low-Profile Commercial Unit Cooler |
+10 °C to -10 °C |
Walk-in coolers, supermarkets |
Compact ceiling-mounted housing, low-noise axial fans (<55 dBA). |
Clear head height, aisle clearance, acoustic threshold. |
Technical Specifications & Material Engineering
Specifications conform to standard EN 328 and AHRI 420 performance test protocols.
Tube Metallurgy
Inner-grooved seamless copper tubing (Φ 9.52 mm, Φ 12.7 mm, Φ 15.88 mm) for standard HFC/HFO duty.
Grade 304/316L seamless stainless steel tubing for Ammonia (R717) and high-pressure subcritical/transcritical CO₂ (R744) duty.
Fin Engineering & Spacing
Aluminum fins (0.12 mm - 0.20 mm thickness) with mechanical tube expansion.
Spacing choices: 4.0 mm (high temp), 6.0 mm (medium temp), 8.0 mm - 12 mm or inline stepped pitch (freezing duty).
Coatings: Hydrophilic, epoxy resin coating, or post-assembly polyurethane dip coating.
Casing Options: Heavy-gauge hot-dip galvanized steel with electrostatic powder coat (100 μm thickness), or Grade 304/316 stainless steel with passivated finish.
Design & Test Pressures
Standard HFC: Operating 2.2 MPa, Factory Test 3.1 MPa.
Transcritical CO₂: Operating up to 6.0 MPa, Factory Hydrostatic Test 9.0 MPa.
Applications & System Compatibility
Component performance is directly dependent on piping geometry, thermostatic or electronic expansion valve (TXV/EXV) tuning, and oil management.
[Compressor Rack / Liquid Receiver] ──(High-Pressure Liquid)──> [EXV / Expansion Valve]
[Suction Vapor Return] <──(Low-Pressure Superheated Gas)── [Industrial Evaporator]
Cold Chain & Frozen Storage (-18 °C to -28 °C): Requires wide fin spacing and uniform face velocity to eliminate dead airflow pockets.
Sanitary Food Processing Environment: High humidity and chemical splash zones requires Grade 316 stainless casings and epoxy-coated fins to resist organic acids and alkaline cleaning agents.
Chilled Water & Secondary Loop Systems: Designed with internal baffles to ensure turbulent flow (Re > 4000) and high overall heat transfer coefficients (U-values).
Customization & Manufacturing Capabilities
We provide engineer-to-order (ETO) support to match existing dimensional footprints or specific system layouts.
Specialized Manufacturing Equipment
Automated high-speed fin press lines with integrated progressive die tooling.
CNC automatic tube benders and hydraulic tube expansion systems ensuring zero tube-to-fin air gaps.
Orbital automatic TIG welding stations for steel headers.
OEM Options
Customized circuit patterns, dual-circuit coils, non-standard mounting dimensions, specialized fan motor brands (EBM-papst, Ziehl-Abegg), and electrical defrost heater terminal configurations.
Quality Control, Certification & Compliance
Quality assurance procedures are integrated into every stage of production:
100% Leak Testing Protocol
Underwater pneumatic pressure testing at 3.0 MPa for 100% of standard production coils.
Helium mass spectrometer leak detection down to 1 × 10⁻⁶ mbar·l/s for critical CO₂ and Ammonia coils.
Compliance & Traceability
Pressure Equipment Directive (PED 2014/68/EU) compliant.
Material Test Reports (MTR) provided according to EN 10204 3.1 for all primary pressure-retaining metals.
Export Packaging Standards
Coils are evacuated, dehydrated, and charged with a 0.05 MPa dry nitrogen holding charge sealed with pressure indicators prior to ocean freight containerization in ISPM-15 compliant wooden cases.
Frequently Asked Questions
Request a Quote (RFQ) & Technical Inquiry
To receive a detailed thermal evaluation and pricing proposal, please submit the following operational parameters to our technical engineering group:
Refrigerant Type: (R404A, R507, R717, R744, Glycol, Water)
Required Cooling Capacity: (kW or Btu/h)
Saturate Evaporating Temperature (ET): (°C)
Target Room / Process Temperature: (°C)
Air Volume / Static Pressure Constraints: (m³/h, Pa)
Defrost Method Preference: (Electric, Hot Gas, Air, Water)
Casing & Metallurgy Requirements: (Standard Galvanized, Grade 304/316 Stainless Steel, Epoxy Fins)
Zhejiang Xuanyuntong Refrigeration Technology Co., Ltd. is one of the most experienced refrigeration evaporator manufacturers and suppliers in China. We warmly welcome you to wholesale high quality refrigeration evaporator made in China here from our factory. Also, custom service is available.
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