👉 The ladder fluid, also known as the ladder line or ladder line fluid, is a specialized hydraulic fluid used in high-performance hydraulic systems, particularly in heavy machinery and industrial applications. It is designed to provide a smooth transition between different pressure levels within the system, allowing for precise control and minimizing pressure drops. This fluid typically features a wide range of viscosities, enabling it to flow easily at low pressures and thicken under high-pressure conditions, which helps maintain consistent performance across a broad spectrum of operating pressures. This characteristic makes ladder fluid ideal for applications requiring high accuracy and reliability, such as in construction equipment, cranes, and other heavy-duty machinery.