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Hydraulic Oil Coolers / Oil-Air Coolers

Efficient thermal management for your system: In this category, you will find high-performance oil-air coolers that cool down the hydraulic oil to the optimal operating temperature using a fan. We rely on the proven quality of asa hydraulik, the market leader for compact and robust cooling systems.

The Right Cooling Technology for Every Space

Excessive oil temperatures (above 80°C) destroy seals and drastically reduce the service life of the oil. Our coolers reliably prevent this – optimized for use in mobile hydraulics (12V/24V).


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1. H-Cube (Tank-Cooler Combination)

The H-Cube is the ultimate "plug-and-play" solution for the tightest installation spaces. It combines tank, cooler, filter, and fan in a single component. We stock 4 variants for 24V systems:

  • Compact (23 Liter Tank): Combined with cooler size TT 07 or TT 11.
  • High Performance (30 Liter Tank): Combined with the larger coolers TT 16 or TT 25.
  • Maintenance-Friendly: Equipped with a suction return filter. Except for the smallest variant, all models feature a standard optical clogging indicator showing the filter status.

2. Standard Oil Coolers (Series TT & GT)

The TT Series from asa hydraulik is the global standard for mobile applications.

  • Design: Robust aluminum plate heat exchanger ("radiator") combined with a powerful axial fan.
  • Application: Ideal for return line cooling or separate bypass cooling circuits up to 26 bar. Thanks to the patented asa-Rail mounting, connections are stress-free and protected against vibration.

3. Universal Coolers (Series AUC)

For price-sensitive applications, the AUC Series offers solid cooling performance with optimized materials for standard use up to 14 bar.

Which Cooler Fits?

Cooling capacity depends on flow rate and ambient temperature. Send us the key data of your system – we will help you identify the matching cooler size (Size 07 to 25).

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4 Products
Front view of an H-Cube oil cooler system Logo of the manufacturer ASA Hydraulik in black and white
"H-Cube" Tank-Cooler Combination by ASA Hydraulik

The H-Cube is a compact unit that can combine 3 tank sizes, 4 cooling elements based on the TT cooling series, and various suction and return filters. Additionally, level indicators, bypass valves, contamination indicators, and temperature switches can be customized. Thanks to its high flexibility and compact design, the system can be used in a wide range of applications and can be personalized for specific requirements. Applications Hydraulically driven axles Silo transporters Tanker trucks Moving floor trailers Food & chemical transport Compression drive systems Components Tank Sizes 17 liters 23 liters 30 liters Filter Sizes TT 07 rail, 2 bar TT 11 rail, 2 bar TT 16 rail, 2 bar TT 25 rail, 2 bar Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

Front view of a “TT” oil-air cooler from ASA Hydraulik Logo of the manufacturer ASA Hydraulik in black and white
"TT" oil-air cooler by asa

The asa TT Rail series combines pressure-resistant cooling elements with the patented asa Rail System. This enables flexible mounting options and variable hydraulic connections for maximum adaptability. Features and Benefits: Operating pressures up to 26 bar Operating temperature range from -20°C to +80°C Flexible rail profile for various connection dimensions and directions Expandable configurations such as internal bypass, fan control, and filter integration Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

Front view of the GT oil-air cooler with protective housing from Asa Hydraulik Logo of the manufacturer ASA Hydraulik in black and white
GT Oil-Air Cooler with Protective Housing by ASA Hydraulik

The GT coolers are fully pre-assembled cooling units consisting of an oil-air cooler, a robust steel housing, pre-installed fan control, and integrated hydraulic connections. The cooler is vibration-dampened and ideally suited for demanding mobile applications. Available in sizes TT 07, TT 11, and TT 16 from the asa Rail System series, these units cover a wide performance range and offer additional configuration options such as an internal bypass valve. Features and Benefits: Durable steel housing for mobile and specialized applications Metal grid to protect the radiator side Vibration-damped mounting to reduce mechanical stress Integrated hydraulic ports and pre-installed fan control Optional internal bypass available Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

Front view of an oil-air cooler from ASA Hydraulik Logo of the manufacturer ASA Hydraulik in black and white
"AUC" Oil-air cooler by asa

The AUC cooler series offers maximum flexibility with universal connectors and optimizes flow to reduce pressure losses. The connections can be adjusted in different dimensions and three directions. An optional intermediate plate with a G 1/2" connection expands the system possibilities. Features and Benefits: Flexible connection options with universal connectors Optimized flow technology to minimize pressure losses Individually customizable connection dimensions and rotation options Additional options with an intermediate plate featuring a G 1/2" connection for expanded functions Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!