Application of Pipe Pressing Machines/Crimping Machines in Construction Machinery—Taking Excavators as an Example

      A crimping machine is a hydraulic device used to securely crimp metal fittings onto high-pressure oil hoses or other pipelines, ensuring a tight seal and reliable connection for efficient transmission of hydraulic or pneumatic fluids. Crimping machines are widely used in industries such as construction machinery, automotive, and mining; among these, excavators are a common type of machinery that employs crimping machines.

In earthmoving machinery such as excavators, loaders, and bulldozers, crimping machines can be used to connect hydraulic hoses, thereby driving hydraulic cylinders, hydraulic motors, hydraulic valves, and other hydraulic components to achieve mechanical motion control.

          In lifting machinery such as cranes, hoists, and forklifts, clamping machines can be used to connect air hoses, thereby driving pneumatic components like cylinders, air motors, and air valves to achieve functions such as lifting, rotating, and extending/retracting the machinery.

          In road machinery such as rollers, milling machines, and pavers, clamping devices can be used to connect pipes—such as water pipes, oil lines, and cables—to convey media like cooling water, lubricating oil, and electrical power. Ensure the normal operation of the machinery.

        An excavator is a heavy-duty machine used for earthmoving, rock breaking, and loading and unloading materials. Its working mechanism consists of components such as the boom, stick, and bucket, which move via the extension and retraction of hydraulic cylinders. The excavator’s hydraulic system comprises a hydraulic pump, hydraulic valves, hydraulic cylinders, hydraulic motors, hydraulic pipelines, and other components. Hydraulic fluid flows between these components, transmitting power and signals.

The primary function of a crimping machine in excavators is to fabricate and repair hydraulic lines, ensuring the proper operation of the hydraulic system. Depending on the specifications of the hydraulic lines and the types of fittings involved, the crimping machine can select appropriate dies to securely crimp fittings onto hydraulic hoses, thereby establishing a reliable connection. The crimping force and crimping time of the machine must be adjusted according to factors such as the material, thickness, and outer diameter of the hydraulic hose, in order to achieve optimal crimping results. Additionally, the crimping machine can be used to replace damaged hydraulic lines, preventing hydraulic oil leakage and contamination, and thus ensuring the safety and efficiency of the excavator.

        The application of crimping machines in construction machinery is an important component of both hydraulic and pneumatic technologies, providing robust support for the performance and functionality of construction equipment. The use of crimping machines in excavators not only enhances the efficiency and quality of excavator manufacturing and maintenance but also reduces costs and failure rates, making them essential auxiliary equipment for the manufacture of excavator hydraulic systems.