Hydraulic Conditioning Units

HCU Series for Mobile Oil Cooling

The AKG Cool-Line HCU Series is a high-performance, all-purpose cooling system designed for rugged environmental conditions. As a global leader in aluminum cooling systems, AKG delivers reliable, German-engineered solutions with the HCU Series, featuring patented hydronucleation technology for de-aeration. This compact unit is ideal for offline cooling applications, offering competitive pricing and quick assembly from stock through our exclusive distribution network.

The HCU Series integrates a DC or hydraulic-motor-driven fan, non-louvered low-fouling fins, and robust construction to ensure optimal heat rejection and durability. With heat rejection up to 18 HP at 80°F ETD, it's built to handle demanding operations while minimizing noise and vibration.

Highly flexible and ready-to-mount, the HCU Series features optimized plumbing to reduce leak points, dual internal bypasses, and vibration testing to military standards (MIL-STD 810). It includes stainless steel/aluminum construction with premium coating, a sight level glass, and a 10-micron filter (200-micron option available).

Achieving optimal hydraulic performance demands advanced cooling technology to maintain fluid integrity and system efficiency. AKG leads in mobile oil cooling with the HCU Series tailored for your needs.

Offline Cooling: Provides dedicated cooling independent of main system flow, ideal for high-heat applications.

De-Aeration: Patented technology removes air from hydraulic fluid, preventing cavitation and oxidation.

Noise Reduction: 3M adhered foam minimizes operational noise in sensitive environments.

Energy Efficiency: Efficient fan drives and heat rejection optimize power usage.

Filtration: Integrated filter with bypass ensures clean fluid circulation.

Rugged Design: Field-tested for real-world conditions in mobile equipment.

HCU Series Hydraulic Conditioning Unit
12v Motor:
Cooling and De-Areation
  • 40,000-hour motor life
  • IP69 rated
  • 35 GPM
Brushless Fan Drive
24v Motor:
Cooling and De-Areation
  • 40,000-hour motor life
  • IP69 rated
  • 35 GPM
Brushless Fan Drive
Hydraulic Driven Fan:
Cooling and De-Areation
  • 40,000-hour motor life
  • IP69 rated
  • 35 GPM
Brushless Fan Drive

HCU Series units provide offline cooling and filtration for hydraulic systems, removing heat and contaminants to prevent system failures. They feature de-aeration technology to eliminate air bubbles, ensuring smooth operation in rugged mobile applications.

Common fan drive types in the HCU Series include:

  • Brushless 12/24 VDC: Long-life, IP69-rated for harsh environments.
  • Hydraulic: High-pressure capability up to 3,000 psi.
  • Brushed 12/24 VDC: Cost-effective with IP68 rating.

Stainless steel and aluminum with premium coatings are used for durability and corrosion resistance. The tank is low carbon steel, and mounting brackets are high steel low alloy, ensuring robustness in mobile applications.

Dual internal bypasses (system at 28 psi, filter at 25 psi), optimized plumbing to reduce leak points, and vibration testing to MIL-STD 810 ensure reliability. The design minimizes downtime in critical operations.

Patented hydronucleation technology in the reservoir removes entrained air, preventing fluid degradation and improving system performance.

Efficient heat rejection up to 18 HP at 80°F ETD, optional fan speed controls, and compact design reduce energy consumption while maintaining cooling performance.

Key safety features include:

  • Pressure Relief: Integrated relief valve.
  • Bypasses: Dual bypasses for system and filter protection.
  • Vibration Resistance: Tested to MIL-STD 810.
  • High Pressure Rating: Up to 3,000 psi.
  • Temperature Monitoring: Optional sensors and switches.

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