Fin Type Evaporator (Aluminum Tube)
The Aluminum Tubes
Use high-purity aluminum alloy. Lightweight with excellent thermal conductivity, ensuring rapid heat absorption in the refrigeration cycle.
Corrosion-resistant, adapting to the low-temperature and humid environment inside refrigerators and freezers.
After special processing, it has good pressure resistance, suitable for the working pressure of refrigeration systems.
The Aluminum Fins
Use a thin-gauge aluminum alloy sheet. Uniform thickness, large heat exchange area, effectively enhancing the evaporation efficiency.
Surface treated with anti-oxidation, maintaining stable performance in long-term use.
Good formability, easy to match with aluminum tubes for a tight combination
The Welding Technology
Smooth and firm welds between aluminum tubes and copper tubes, ensuring efficient heat transfer without leakage.
Low heat input during welding, avoiding damage to the material structure, and maintaining the original thermal conductivity.
Precise welding positioning ensures the overall dimensional accuracy of the evaporator.
The Protective Cover
The surface of the evaporator has been cleaned when leaving the factory.
Dust-proof and moisture-proof, keeping the aluminum tubes and fins in optimal working condition before installation.
Product Details
Domi Refrigeration supplies Fin Type Evaporator (Aluminum Tube) for OEM buyers who need a drawing-driven component, stable repeat production, and a supplier that can discuss size, material, testing, and packaging before release.
For coil projects, the safest starting point is the old sample, a cabinet sketch, or an approved drawing. That lets the supplier confirm face area, tube pitch, row count, connection position, and mounting pattern before quotation.
Where this product fits
This product is used wherever the system needs efficient heat rejection or heat absorption inside a compact footprint.
- compact refrigerators
- small freezer cabinets
- cost-sensitive OEM projects
Materials and build options
Aluminum tube construction is useful when weight control, cost control, and corrosion-aware design matter. Fin material, mounting brackets, and coating options should be matched to the end use.
The key size points are face area, row count, tube pitch, fin pitch, depth, and connection position. These must be checked from the approved drawing or sample before production starts.
Specification guidance
| Item | Guidance |
|---|---|
| Main materials | Aluminum tube with fin pack, plus brackets and end plates matched to the installed cabinet. |
| Dimensions | Built according to the approved drawing. Face area, row count, depth, and connection position are the key checks. |
| Refrigerant/medium | Suitable refrigerant compatibility should be confirmed per project. Common compact-system families may include R290 or R600a when the design allows it. |
| Pressure / electrical note | Pressure class and test requirements must be confirmed from the approved design. Do not assume the same limit for every cabinet or refrigerant family. |
| Testing | Before shipment, the coil should go through dimensional review, surface inspection, and leak testing, where required by the project. Packaging should protect fins and connection ends. |
| MOQ | MOQ is usually discussed by drawing the complexity and order quantity. Sample confirmation can be reviewed before full production. |
| Lead time | Lead time is driven by drawing approval, material readiness, and the number of size revisions required. |
| Technical Parameters | |
| Raw material | 1)Al tube:Φ8.0×0.7~1mm |
| 2)Al fin:Bare Al fin thickneww T=0.15~0.25mm | |
| 3)Side plate:Al plate T=0.8~1.5mm | |
| Application | Refrigerator and Freezer |
| Key process | Tube Bending,Fin punching,Tube expanding,Degreaesing,Welding and assembling,Leakage test,Drying,Inspection,Packing |
| Technical Standards | 1)Diagonal-inserting style:50×19.05×N;60×19.05×N(N≥4) |
| 2)Pull-expanding style:60×28;52×28 | |
| 3)Press-expandingstyle:50.8×203.2 | |
| Can design and produce according to drawing,samples and requirements from clients | |
| Performance | Can satif all capability requirements for refrigerator |
| Cooling System Tube Inside Standards | ||||
| Inner Volume(cm²) | ≤100cm³ | 101~200 | 101~400 | 401~800 |
| Residual Moisture(mg) | ≤10 | ≤20 | ≤25 | ≤30 |
| Residual Impurity(mg) | ≤100mg/100cm³ | |||
| Biggest single impurity(mg) | ≤2mg | |||
Testing and release checks
Before shipment, the coil should go through dimensional review, surface inspection, and leak testing, where required by the project. Packaging should protect fins and connection ends.
For repeat orders, keep the matched drawing and sample record so the next batch follows the same tube and fin geometry.
FAQ
Can you confirm the size from a sample or photo?
Yes. A photo, old part, or cabinet dimension sheet is enough for a first-match discussion.
How do you confirm refrigerant, pressure, or operating conditions?
Refrigerant and pressure should follow the approved design package, not a generic catalog assumption.
What is needed for MOQ and lead time confirmation?
Quantity, sample status, and whether the unit is a new build or replacement are the main MOQ and lead time inputs.
Quotation next step
Send the cabinet drawing, refrigerant target, and current sample photos so the quote can be checked against the real installation.
Related resources: manufacturing process, quality certifications, and commercial cooling coils. For procurement follow-up, request a custom quote.
Get Product Information for Your Project
Send the product model, drawings, sample photos, quantity, or application requirements. Our team will review the information and help confirm suitable options, technical data, and quotation details.