In 2025, HACST Cooling supplied and installed a BHX hybrid closed cooling tower for an industrial client in Indonesia.
The system was designed to provide reliable cooling for air compressors and injection molding machines.
This case study highlights how advanced closed circuit technology helps industries in tropical climates achieve stable performance and energy saving.
Project Background
Indonesia is one of the fastest growing manufacturing hubs in Southeast Asia.
Factories producing automotive parts, plastics and electronics rely heavily on compressors and injection molding machines.
These machines generate large amounts of heat, and without proper cooling the efficiency drops dramatically.
The client’s previous open cooling tower consumed too much water and suffered from scaling problems.
Therefore, a closed loop cooling tower became the best solution.
Why Choose BHX Hybrid Closed Cooling Tower
The BHX series hybrid cooling tower combines the advantages of dry cooling and evaporative cooling.
Some unique features include:
- Dual heat exchange: finned coils plus PVC fill media, ensuring high efficiency even during peak summer.
- Closed circuit system – protecting compressors and molding machines from dirty water and scaling.
- Water saving design, compared with traditional open towers.
- Energy efficient axial fan with low noise performance.
- Galvanized or stainless steel structure to withstand Indonesia’s humid and coastal climate.
Installation at Indonesian Factory
The installation site was located near Jakarta, with high temperature and humidity throughout the year.
The cooling demand came from two main sections:
- Air Compressors: running 24/7, generating hot compressed air that needed continuous cooling.
- Injection Machines: sensitive to cooling fluctuations, affecting product quality and cycle time.
Our engineers delivered the BHX unit, completed civil foundation, piping connection, and electrical wiring within one week.
A bypass arrangement was designed for operation flexibility during maintenance.
Challenges and Solutions
Several issues were considered in this project:
- High ambient temperature: Hybrid system ensures stable operation even at 35–36°C outdoor temp.
- Water scarcity: By switching to partial dry cooling mode during night, water consumption reduced significantly.
- Maintenance: Closed loop reduces scaling inside compressor jackets and injection machine molds.
- Energy cost: Fan and pump controlled by VFD to save power during part load conditions.
Performance After Commissioning
The BHX cooling tower showed very positive results:
- Compressor temperature stable, ensuring longer equipment life.
- Injection molding cycle time shortened, improving production efficiency by approx. 8%.
- Water consumption cut by nearly 20–25% compared with the old system.
- Noise level within factory boundary requirements, good for workers’ environment.
Advantages of BHX for Indonesian Industry
Why is the BHX hybrid tower suitable for Indonesia?
- It can handle tropical weather with high humidity and temperature.
- It saves water – very important in industrial zones where water cost is increasing.
- Closed loop system protects critical machines from dirty water, corrosion and scaling.
- Flexible operation – dry mode at night, hybrid mode at daytime peak load.
Impact on Client’s Operation
With the new BHX system, the factory noticed immediate improvement.
The compressors and injection molding machines ran smoothly without overheating alarms.
Production downtime reduced, maintenance cycles extended, and overall factory output increased.
This project also supports sustainability goals by saving both energy and water resources.
Conclusion
The Indonesia project shows how BHX hybrid closed cooling towers can effectively serve industrial applications like air compressor cooling and injection molding machine cooling.
In tropical regions where energy and water resources are critical, hybrid towers represent a smart balance of performance and sustainability.
By the way, if you are considering upgrading your industrial cooling system, HACST Cooling can provide customized BHX series solutions tailored to your factory condition.
Contact us today via our team for more details and technical support.