Your Premier Chiller Manufacturer and Supplier in China Over 20 Years
The ACOS Series Immersion Oil Chiller is a compact and highly efficient direct-immersion process cooling system engineered for open-tank oil temperature management. Designed with a custom-engineered drop-in cooling coil, the ACOS series is installed directly into existing hydraulic oil reservoirs, coolant tanks, or machine tool sumps—eliminating the need for external oil pumps and complex piping. By offering precise oil temperature control, zero risk of external oil leakage, and a minimal factory footprint, the ACOS series ensures maximum operational reliability and thermal stability for machine tools, hydraulic units, and heavy industrial machinery.
The ACOS Series is specifically engineered for direct-tank immersion cooling across various industrial machining and power applications:
| Model | ACOS50 | ACOS70 | ACOS90 | ACOS120 | ACOS150 | ACOS180 | ACOS250 | ACOS300 | ACOS350 | ACOS500 | |
| Cooling Capacity[W] | 5000 | 7000 | 9000 | 12000 | 15000 | 18000 | 25000 | 30000 | 35000 | 50000 | |
| Power Supply | 3PH / 380V / 50Hz [ Customizable ] | ||||||||||
| Input Power[W] | 2400 | 3000 | 3050 | 4900 | 5600 | 7000 | 8700 | 11000 | 14000 | 17500 | |
| Liquid Temperature | 15~45℃ | ||||||||||
| Ambient Temperature | 5~42℃ | ||||||||||
| Refrigerant | R407c / R410a / R134a/ R513a | ||||||||||
| Applicable liquid | Water, water-soluble cutting fluid, water soluble grinding fluid;cutting oil, grinding oil | ||||||||||
| Dimensions | Width[mm] | 600 | 680 | 760 | 760 | 760 | 830 | 980 | 980 | 980 | 1080 |
| Length[mm] | 560 | 670 | 750 | 750 | 750 | 750 | 1250 | 1250 | 1500 | 1755 | |
| Height[mm] | 1085 | 1205 | 1225 | 1325 | 1475 | 1720 | 1835 | 1835 | 1835 | 1800 | |
| NOTE Cooling capacity rated at oil 35°C / ambient 35°C. Performance degrades with higher ambient temperature or lower oil temperature. Specifications subject to change without notice for product improvement. |
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NOTE
1.Cooling capacity rated at oil 35°C / ambient 35°C. Performance degrades with higher ambient temperature or lower oil temperature.
2.Installation requires min. 300cm clearance around unit for air intake/exhaust.
3.Non-standard/custom options available upon request. Contact us for details.
4.Specifications subject to change without notice for product improvement.
Drawings are for reference only; actual specifications will be provided based on the specific order.

Your Reliable Chiller Manufacturer and Supplier In China?
Tobel is a leader of water chiller manufacturers with rich experience.
Tobel provides extend to 24 months of warranty time covering all water chillers.
Each water chiller unit from Tobleuses famous brand spare parts.
Tobel can provide water chiller installation and commission service.
In case of any water chiller error, Tobel gives a quick response within 8 Hours
Tobel promise to give all water chiller unit a whole lifetime of service
























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