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In hydraulic system design, energy transfer between the pump and actuators is not always linear. Although hydraulic oil is extremely difficult to compress, its bulk modulus changes under high pressure, and mechanical actions are often discontinuous. This leads to energy supply imbalances and severe pressure pulsations in the system. An accumulator, as an energy storage […]

When hydraulic oil is mixed with water, does its viscosity become thinner or thicker? The common understanding is that “oil mixed with water = thinner!” This is only half true. Once emulsification occurs, the viscosity will defy common sense and skyrocket. 1. First, debunk the common misconception that “oil mixed with water will always become

Hydraulic oil contamination is a key factor affecting the performance and lifespan of hydraulic systems. It not only leads to equipment failure but also shortens component lifespan and increases maintenance and operating costs. Therefore, understanding the sources, types, effects, and control methods of hydraulic oil contamination is crucial for ensuring the efficient operation of hydraulic

1. Install pressure gauge Install a 50 bar pressure gauge at the make-up oil pressure measuring port to check the make-up oil pressure of the make-up oil pump. This port is located on the side of the pump body. Install a 60 MPa pressure gauge at the system pressure measuring port to check the system’s

A hydraulic flow divider/synchronizing motor, as the name suggests, has two core functions: Flow Dividing: It precisely divides one input oil flow into two or more equal output flows, driving multiple actuators (cylinders or motors) to move synchronously. Flow Combining: During reverse operation, it combines multiple input oil flows into a single output. Its essence

1. Data Enhance the ability to monitor, collect, and utilize data generated by fluid power products and/or systems. By integrating sensors, IoT, and other technologies to access data, it becomes possible to better monitor component and system performance and identify potential maintenance issues, preventing these from leading to larger-scale unplanned downtime. This helps extend the

Hydraulic transmission relies on the volume change of the sealed oil chamber to transmit force and speed. Poor sealing will cause oil leakage, which will make the mechanism movement unstable, reduce volumetric efficiency, and pollute the environment. In severe cases, the pressure cannot be built up, causing the hydraulic system to fail to work. Therefore,

In 2024, Parker Hannifin announced the launch of a new truck hydraulic pump—the F4 series. This article mainly explains some features of this pump and see if they can be applied to other application areas. 1. What’s special about this pump? This pump has two main features: (1) It’s a dual-flow pump, meaning it has

On construction site loaders, farm tractors, and ocean-going vessels, a reliable steering system is crucial for safe operation. You may not have noticed, but more and more large equipment is now abandoning traditional mechanical linkages in favor of “mechanically linked” hydraulic steering technology—hydrostatic steering. 1. The Evolution of Hydraulic Steering: Three Generations of Technological Iteration,

As an important power device, servo motor plays a key role in many fields. So, how can we choose a suitable servo motor? This requires us to have a detailed understanding of its performance parameters. 1. Main performance parameters of servo motor (1) Rated power: This refers to the power that the motor can continuously