AL608® – Compact Hydraulic Oil Cooling Solution for Modern Machines

Efficient oil temperature control plays a vital role in the smooth operation of hydraulic systems. When oil temperature rises beyond acceptable limits, it directly affects machine accuracy, component life, and overall system reliability. AL608® is a compact and efficient hydraulic oil cooling solution developed to meet the cooling requirements of low-flow applications, especially where space and performance both matter.

Designed for drain line cooling, AL608® is widely used in CNC machines, VMC clamping fixtures, and hydraulic power packs operating with variable displacement pumps. Its practical design, reliable cooling capacity, and low maintenance requirements make it a preferred choice in modern industrial environments.

Understanding the Role of AL608® in Hydraulic Systems

Hydraulic systems generate heat during operation due to internal leakage, friction, and pressure variations. In systems using variable displacement pumps, excess heat is often carried through the drain line. If this heat is not managed properly, it can raise the overall oil temperature in the reservoir.

AL608® is specifically engineered to remove this excess heat before the oil returns to the tank. By stabilizing oil temperature, it helps maintain consistent hydraulic performance, reduces wear on internal components, and improves overall system efficiency. As a compact air cooled oil cooler, it does not depend on water supply, making it ideal for locations where water cooling is not practical.

Technical Capabilities of AL608®

AL608® is designed to handle oil flow rates ranging from 1 to 10 LPM, making it suitable for small to medium hydraulic circuits. It offers a cooling capacity of up to 1330 Kcal/h (1.55 kW), which is sufficient for effective drain line cooling in precision machines.

Its compact construction allows easy installation without major system modifications. Despite its small size, AL608® delivers consistent thermal performance, ensuring that oil temperature remains within safe operating limits even during continuous machine operation.

How AL608® Works

The working principle of AL608® is simple and efficient. Hot hydraulic oil from the drain line passes through the internal flow passages of the unit. Heat from the oil is transferred to the surrounding surface area, where it is dissipated into the atmosphere through airflow.

Because AL608® functions as an air cooled oil cooler, it eliminates the need for complex piping, cooling towers, or water treatment systems. This makes installation straightforward and maintenance minimal, especially in industrial settings where downtime must be kept to a minimum.

Applications of AL608®

AL608® is commonly used in applications that demand stable oil temperature and reliable hydraulic performance.

In CNC machines, precise motion control and repeatability are essential. Excess heat can affect machine accuracy and tool life. AL608® helps maintain optimal oil temperature, supporting smooth and accurate machine operation.

CNC and VMC clamping fixtures rely on stable hydraulic pressure to ensure secure and repeatable clamping. Temperature fluctuations can lead to pressure variation and inconsistent clamping force. By cooling the drain line oil, AL608® improves system stability and fixture reliability.

Hydraulic power packs with variable displacement pumps often experience localized heat buildup. Installing AL608® in the drain line prevents excessive heat from entering the reservoir, improving pump life and reducing the risk of oil degradation.

AL608® is also suitable for compact industrial automation systems where space constraints and energy efficiency are key considerations.

Benefits of Using AL608®

One of the main advantages of AL608® is its compact and space-saving design. It can be easily integrated into existing hydraulic systems without occupying excessive space.

As an air cooled oil cooler, AL608® offers lower operating costs compared to water-based cooling solutions. There is no risk of water leakage, scaling, or corrosion, which significantly reduces maintenance requirements.

By maintaining proper oil temperature, AL608® helps extend the life of hydraulic components such as pumps, seals, and valves. This results in reduced downtime, lower maintenance costs, and improved overall productivity.

The unit is also energy efficient, as it removes heat directly from the oil without the need for additional cooling infrastructure.

Why AL608® is Ideal for Drain Line Cooling

Drain line oil carries the heat generated inside variable displacement pumps. Cooling this oil before it reaches the reservoir prevents the entire system from heating up. AL608® is designed specifically for this purpose, delivering effective cooling even at low flow rates.

This targeted cooling approach improves thermal control without the need for oversized cooling equipment. As a result, system performance remains stable while energy consumption is kept under control.

Conclusion

AL608® is a reliable and efficient solution for hydraulic oil cooling in low-flow applications. With oil flow handling from 1 to 10 LPM and a cooling capacity of up to 1330 Kcal/h (1.55 kW), it is well suited for drain line cooling in CNC machines, VMC clamping fixtures, and hydraulic power packs.

Its compact design, low maintenance requirements, and dependable performance make AL608® a practical choice for industries seeking long-term reliability. When used as an air cooled oil cooler in the right application, AL608® helps maintain optimal oil temperature, improves system efficiency, and extends the life of hydraulic components.