Is the hydraulic power unit suitable for high load conditions?

The hydraulic power unit is suitable for high load conditions, mainly for the following reasons:

Powerful force transmission capability: The hydraulic system utilizes incompressible liquid to transmit power. By changing the area of the cylinder piston, it is very easy to obtain a huge output force. Even if the size of the pump is not large, it can generate enough force through system design to push or lift extremely heavy loads. This is the core advantage of hydraulics.

Built in overload protection: Hydraulic systems are typically equipped with relief valves. When the system pressure exceeds the preset safe value, the overflow valve will automatically open, guiding the oil back to the tank, thereby limiting the maximum system pressure and protecting key components such as pumps, valves, and cylinders from high pressure damage. This is crucial for dealing with unexpected resistance or impact that may occur under high loads.

Good heat dissipation capability: Hydraulic oil circulates in the system, not only transmitting power, but also taking away the heat generated inside the system (mainly from throttling losses of pumps and valves and oil compression). The fuel tank itself also plays a role in heat dissipation. This continuous oil circulation helps maintain the system temperature within an acceptable range during high loads and prolonged operation, preventing overheating and failure.

Excellent impact resistance and vibration absorption capability: Hydraulic oil itself has a certain degree of compressibility (although very small), and system pipelines and components (such as accumulators) can absorb and buffer energy caused by sudden load changes or external impacts. This makes the hydraulic system smoother and more durable than pure mechanical or electrical transmission when subjected to heavy loads and impact loads (such as excavator buckets hitting hard objects).

Flexible structural layout: The power units (pumps and motors) can be centrally arranged, while the actuators (cylinders, motors) can be flexibly arranged in the required locations through pipelines. The characteristic of separating the "power source" from the "output point" makes hydraulic systems very suitable for large, complex, and high load equipment with limited space or the need to transmit huge forces to specific locations, such as large presses and engineering robotic arms.

High reliability and durability: Well designed and manufactured hydraulic components (pumps, valves, cylinders) have a long-term reliable operation record in heavy-duty industrial fields such as metallurgy, mining, ships, and engineering machinery. They can withstand harsh environments and continuous high-pressure work.

Stable low-speed high torque output: Hydraulic motors can provide smooth and huge torque output at extremely low speeds, which is very advantageous for high load situations that require precise control of heavy object movement (such as positioning of large structural components and slow lifting of heavy equipment), avoiding the phenomenon of "crawling".