Coolace External Motor Driven Fan series air cooled oil coolers are designed for industrial hydraulic systems requiring powerful airflow, easy motor access, and enhanced serviceability. The externally mounted electric motor allows improved cooling efficiency, simplified maintenance, and reliable long-term operation in demanding industrial environments.
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Discover the key features of our external motor driven air cooled oil coolers, designed for high performance, flexible installation, and efficient heat dissipation in industrial applications.
We are proud to support leading OEMs and industrial companies with reliable oil cooling solutions that enhance equipment performance, efficiency, and operational reliability.


































This series is ideal for fixed industrial installations where standard electrical power is available. The external motor configuration improves heat dissipation and extends motor life, making it suitable for continuous and heavy-duty hydraulic operations.
| Model | Thread BSPT | Oil Flow (L/min) | Working Pressure (BAR) | Capacity (Kcal/Hr) ΔT=30°C | Dimension (L × H × W) mm |
|---|---|---|---|---|---|
| AH-1012T | 1 | 20–100 | 20 | 5100 | 421 × 316 × 162 |
| AH-1215T | 1" | 20–100 | 20 | 7400 | 520 × 368 × 210 |
| AH-1418T | 1" | 30–100 | 20 | 10100 | 570 × 422 × 210 |
| AH-1428T | 1 1/4" | 30–200 | 20 | 11400 | 575 × 410 × 280 |
| AH-1490T | 1 1/2" | 30–250 | 20 | 19000 | 490 × 620 × 300 |
| AH-1680T | 1 1/2" | 30–250 | 20 | 23700 | 490 × 620 × 300 |
| AH-1890T | 2" | 30–300 | 20 | 28000 | 610 × 784 × 400 |
| AH-2432 | 2" | 30–300 | 20 | 43000 | 888 × 942 × 640 |
| AH-2583 | 2 1/2" | 30–350 | 20 | 67000 | 850 × 1160 × 620 |
| AH-3044 | 2" | 25–400 | 20 | 90000 | 1230 × 1420 × 950 |
| AH-3650 | 2" | 30–400 | 20 | 80000 | 1200 × 1250 × 950 |
| AH-3655 | 2" | 30–400 | 20 | 105000 | 1200 × 1250 × 950 |
Our External Motor Series coolers serve diverse industries and applications worldwide
Dedicated cooling for industrial gearboxes and heavy-duty transmissions.
Reliable cooling for heavy-duty hydraulic system performance.
Cooling solutions for various industrial manufacturing environments.
Coolers designed for construction and mobile hydraulic systems.
Temperature control for centralized lubrication systems.
Our technical experts are ready to help you select the right oil cooler for your specific application. Get personalized recommendations based on your flow rates, operating temperatures and installation requirements.
Talk to Our ExpertTrusted by industries worldwide for reliable, high-performance cooling solutions
Decades of expertise in designing and manufacturing premium oil cooling solutions.
Advanced technology ensuring maximum heat dissipation with minimal energy consumption.
Built to withstand the most demanding industrial environments and operating conditions.
Dedicated technical team ready to assist with selection, installation, and maintenance.
Quality management systems ensuring consistent, reliable products every time.
Find answers to common questions about external motor driven air cooled oil coolers, including their working principle, advantages, and applications in hydraulic systems, industrial machinery, and heavy-duty equipment requiring efficient oil cooling.
We are proud to support leading OEMs and industrial companies with reliable oil cooling solutions that enhance equipment performance, efficiency, and operational reliability.


































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