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Five Techniques for Hydraulic Cylinder Maintenance
Hydraulic cylinders are integral components of hydraulic systems, serving as mechanical actuators that provide unidirectional force. They eliminate the need for levers and gears in their integration. Hydraulic systems find applications in both mobile (hydraulic presses, cranes, forging and packaging machines) and industrial systems (agricultural machinery, construction vehicles, marine equipment). Among these, hydraulic cylinders are widely used for lifting, gripping, and holding in various applications. In this article, Nadun Machinery Manufacture Co., Ltd. introduces five key techniques for hydraulic cylinder maintenance.
Every hydraulic system comprises essential components such as pumps, hydraulic cylinders, valves, filters, and more. Hydraulic cylinders are among the less complex components in this list, making them easy to maintain and repair. Individuals with basic knowledge of hydraulic systems can perform hydraulic cylinder maintenance. Before delving into hydraulic cylinder maintenance, let's briefly explore the common causes of hydraulic cylinder failures. Damaged seals are a frequent cause of hydraulic cylinder damage. Improper installation, corrosion, improper metal processing clearances, and other factors can lead to seal damage. Fluid contamination can harm the piston rod or seal surfaces. Incorrect alignment of the cylinder and load can damage connecting rod bearings or piston rods. Internal corrosion in the barrel can contaminate the fluid.
Before initiating repairs, ensure proper cleaning of surfaces and disconnect hoses and plugs. Drain all fluid from the cylinder body after disassembling components. Now, let's begin the hydraulic system maintenance, for which we need tools. The right seal kits, rubber mallet, screwdriver, punches, pliers, sandpaper, and torque wrench are essential tools for maintenance. Hydraulic cylinder leaks are a common issue leading to maintenance. Cylinder repair involves disassembling the cylinder, diagnosing the cause of faults, repairing or replacing faulty components, and rebuilding the cylinder.
During the hydraulic cylinder maintenance process, consider the following mentioned techniques:
If disassembling the hydraulic cylinder during maintenance, thoroughly inspect not only the faulty parts but also all other components.
Hydraulic wear bands (also known as wear liners or guide rings) guide the piston. Hence, do not forget to assemble wear bands, as this reduces metal-to-metal contact.
Premature failure of rod seals indicates bending of the rod.
Metal tools can scratch the cylinder surface, leading to corrosion and other issues. Therefore, carefully select appropriate repair tools.
Larger hydraulic cylinders use high-pressure springs for operation. Therefore, exercise caution when handling such cylinders if you are an inexperienced worker.
To replace seals, do not measure the existing dimensions of the seal. It will expand or compress based on environmental conditions.
As part of planned hydraulic cylinder maintenance, always inspect piston rods, seals, and bearings. If you notice a rough rod surface during inspection, remember that your system is at risk because a rough surface increases friction. Therefore, the rod must be polished to reduce friction. These maintenance procedures will significantly reduce failures.
Introduction to Nadun Machinery Manufacture Co., Ltd.
Nadun Machinery Manufacture Co., Ltd. is a forging equipment manufacturing enterprise specializing in fluid pressure forming technology. Since its establishment in 2006, Nadun Machinery Manufacture Co., Ltd. has been committed to technological innovation and product development in the field of high-pressure forming. The company's main product range has evolved from producing ordinary hydraulic equipment to developing and manufacturing top domestic fluid pressure forming technology forging equipment.
Nadun Machinery Manufacture Co., Ltd. is a provider of advanced lightweight forming technology, offering customers not just hydraulic equipment but a comprehensive intelligent manufacturing and forming solution. From product development, equipment production, mold development, customized solutions to final delivery, and providing value-added services, we deliver more than just a hydraulic device – we offer a complete intelligent manufacturing solution.
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