What Type of Solenoid Valve to Control Bidirectional Cylinder?

In construction machinery, solenoid valves are one of the common hydraulic components used to control various hydraulic actuators, including bi-directional cylinders. Bidirectional cylinders play a key role in construction machinery because they are capable of bi-directional movements such as lifting, pushing and tilting. This article will discuss what type of solenoid valve to choose when controlling bi-directional cylinders in construction machinery.

Single-acting and double-acting bi-directional cylinders

Before choosing the type of diesel solenoid valve, it is important to first understand the type of bidirectional cylinders used in mechanical systems. Engineering machinery in the common two-way cylinder can be divided into two main types: single-acting and double-acting. Single-acting bidirectional cylinders can only be applied on one side of the force, and on the other side of the need for external forces to make it return. Double acting two-way cylinders, on the other hand, can generate force in both directions and are capable of returning themselves to their original position. The type of solenoid valve selected will depend on the type of cylinder being used.

Three-way and four-way solenoid valves

Solenoid valves controlling bi-directional cylinders are usually categorized into two main types: three-way and four-way. Three-way solenoid valves have two working positions and a neutral position and can control bi-directional movement of double-acting cylinders. Four-way solenoid valves have two working positions and two neutral positions and are suitable for the control of single-acting cylinders. Therefore, when selecting a solenoid valve, it is necessary to consider the type of cylinder to be used as well as the desired control function.

Voltage and Current Requirements

Another important consideration is the voltage and current requirements of the solenoid valve. Solenoid valves are usually available in different voltage options such as 12V, 24V and 110V, so you need to select a solenoid valve that is suitable for the power supply of the mechanical system. It is also important to ensure that the current requirement of the solenoid valve matches the power capacity of the system to ensure that the rest of the diesel engine parts operates properly.

Valve size and flow rate

The size and flow rate of the solenoid valve are also factors to consider when making a selection. It is critical that the size fits the installation space of the mechanical system and that the flow rate is sufficient to meet the movement requirements of the cylinders. Solenoid valves that are too small may not be able to provide sufficient flow, which can affect the performance of the cylinder.

Control Method

Finally, the method of control needs to be considered when selecting a solenoid valve. Solenoid valves can be controlled manually, automatically, or through a computer. Depending on the needs of the mechanical system and the degree of automation, choosing the appropriate control method can better complement the use of other accessories such as starter motor and alternator.

In short, in construction machinery, the selection of suitable solenoid valves for bi-directional cylinder control is one of the key factors to ensure the normal operation and stable performance of the mechanical system. To select the right solenoid valve, you need to consider the cylinder type, valve type, voltage and current requirements, size and flow rate, and control mode. This will ensure that the mechanical system operates efficiently in a variety of applications.