Air Compressor Cooler
Air Compressor Aftercooler
Main Parameters
We support customization of the following
Atlas Copco, Cooper Joy, Cooper Cameron, Suler,
Ingersoll Rand, Centac, Samsung, Hanwha, FS-Elliott,
Kaeser, KOBELCO, BOGE, SULLAIR,
Nuovo Pignone, COMPAIR, and more.
Air Compressor Aftercooler
An air compressor aftercooler is a key unit in a compressed air system. It cools high-temperature compressed air and removes condensed water, preventing moisture buildup in pipelines and supporting compressed air quality and system stability.
1. Core Functions
Temperature control
Compressed air can exceed 180°C after compression. The aftercooler typically reduces outlet temperature to below 40°C, usually about 10°C above the cooling medium, to protect downstream equipment such as dryers and air receivers.
Moisture separation
As air cools, vapor condenses into liquid water. With a built-in separator and automatic drain, up to about 70% of moisture can be removed to reduce corrosion and pneumatic tool failure risk.
Oil mist reduction
In oil-lubricated compressors, part of the oil vapor is condensed and removed, helping lower oil carryover and improve compressed air cleanliness.
2. Types and Structure
Water-Cooled Aftercooler
Principle: cooling water and compressed air exchange heat in counterflow, delivering high efficiency for high-flow duty.
Structure: commonly double-tube-pass and single-shell-pass vertical design; copper tubes (for example, φ14×1 mm) are often TIG welded, with baffles to improve heat transfer.
Advantages and use: high overall heat transfer coefficient, lower heat transfer area demand, suitable for large industrial systems such as metallurgy and chemical plants.
Air-Cooled Aftercooler
Principle: a fan drives ambient air through cooling fins for heat dissipation, suitable where cooling water is unavailable.
Structure: aluminum block elements or helical baffle structure to improve airflow-side cooling performance.
Advantages and use: no cooling water required, easy installation, lower maintenance cost, common for small or mobile compressor units.
3. Technical Features
- High-efficiency retrofit: helical baffles with finned tubes can improve cooling efficiency by about 25% to 55%, while reducing pressure drop and energy use.
- Durable materials: stainless steel or anti-corrosion treated materials improve service life in humid or corrosive environments.
- Automatic drainage: a normally open auto-drain closes when air pressure exceeds 0.15 MPa to reduce compressed air leakage.
- Low energy penalty: pressure loss is minimal and generally does not add significant operating power cost.
4. Installation and Maintenance
Installation Requirements
- Install close to the compressor with enough maintenance access and a bypass line.
- Avoid direct sun, rain, high humidity above 85%, or corrosive gas exposure.
- Do not route drain lines upward or with sharp folds to prevent condensate accumulation.
Maintenance Points
- Clean ventilation openings monthly to prevent fin blockage by dust.
- Check auto-drain function and confirm drainage at least once per day.
- Monitor refrigerant pressure where applicable to detect leakage or cooling capacity changes.
- Keep ambient temperature below 40°C; poor ventilation may trigger protection shutdown.
5. Application Scenarios
Industrial Manufacturing
Automotive, textile, chemical, and similar sectors to support stable pneumatic and automated production operation.
Energy Systems
Compressed air energy storage and air separation systems where cooling quality directly affects efficiency and lifecycle.
Special Environments
High humidity or corrosive gas duty requiring anti-corrosion copper tube treatment or stainless heat exchanger construction.
6. Typical Products
Atlas Copco
- HD Series (Water-Cooled): stainless tube bundles for high-capacity applications.
- TD Series (Air-Cooled): aluminum cooling elements for lower-flow and compact installations.
Kaeser
- ACA Series (Air-Cooled): suitable where ambient conditions are moderate and water supply is limited.
- WRN Series (Water-Cooled): supports low outlet temperature and potential heat recovery for plant utilities.
7. Operating Notes
Air Cleanliness
Dust and oil carryover reduce heat exchanger efficiency. Add inlet filtration when process air quality is unstable.
Power Stability
Keep voltage fluctuation within ±10% and install leakage circuit protection for safe continuous operation.
Start Sequence
Stabilize power first, then introduce compressed air. After shutdown, wait at least 3 minutes before restart.
Share Article
| Brand Name: | Fete Vessel | Design Standard: | ASME, PED, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 3 years | Production standard: | GB150.ASME.European standard. |
What are your strengths?
Ans. Our strengths lie in our expertise in design and manufacturing.
What is your estimated delivery time?
Ans. The delivery time varies depending on the specific product. Typically, it ranges from 10 to 40 working days.
What are your primary product offerings?
Ans. Our primary product offerings include industrial heat exchangers, pressure vessel, air dryer.
How can I get in touch with you?
Ans. We are available 24/7 through TradeManager for immediate assistance. Alternatively, you can contact us via email, WhatsApp, Skype, or WeChat. Select one of our products and message us, and we will promptly respond.
What are your payment terms?
Ans. Our payment terms require a 50% TT deposit in advance, with the remaining 50% TT balance due before delivery. We also offer the option of utilizing Alibaba Trade Assurance Service. We welcome any additional suggestions or inquiries regarding payment methods.
Feel free to Ask questions
Replacement support
Air Compressor Aftercooler selection and replacement support
Fete Vessel supports engineers and purchasing teams who need a reliable replacement for Air Compressor Aftercooler. Share the compressor model, cooler dimensions, drawings, operating pressure, temperature, medium, and old part photos, and our team will compare the details before recommending a suitable manufacturing plan.
Fit and drawings
We review cooler dimensions, nozzle position, mounting size, drawings, old part photos, and site installation details.
Material and test
Each order can be checked for material, tube bundle layout, pressure test requirements, coating, packing, and delivery schedule.
Repair or replace
For urgent maintenance projects, we can help check whether an existing cooler can be repaired, retubed, or replaced.
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