The damage to the hydraulic valve parts during daily production and use of hydraulic presses is usually caused by the following reasons: 1. Deformation of physical structures due to long-term fatigue and overload. When the stress during work and external load stress during use exceed the yield strength of the part material, physical deformation of the external structure occurs, especially the bending deformation of the valve core of the overflow valve and the spring deformation, the reciprocating operation is inflexible, resulting in unstable system pressure or slow state transition process. 2. The valve core and valve body are seriously worn, and the gap is too large. The valve core and valve body (shelves), etc. are constantly friction during movement and use, causing changes in the size, shape and surface quality of the parts to change, and the quality is reduced and the effect is ineffective. The solenoid reversing valve core is worn and deformed, causing the valve to leak internally, resulting in reduced efficiency or unstable pressure, causing the system to not work normally. 3. The oil is not clean and causes the hairpin to wear, which will cause the hydraulic valve parts to not work normally, and may even cause hydraulic pressure.

From May 26 to 29, 2025, the Russian International Industrial Machinery Manufacturing Exhibition was grandly held in Moscow. As an important event in the global industrial field, this exhibition attracted many companies from all over the world to participate in the exhibition, jointly displaying the latest technologies and products of the industry. At this exhibition, Zhongshan Wanda Machinery Automation Technology Co., Ltd. (booth number: 12B45) was favored by many professional audiences with its advanced high-end hydraulic press products. After more than 30 years of unremitting efforts and innovation, Zhongshan Wanda Machinery Automation Technology Co., Ltd. has accumulated rich experience in the production, design and research and development of high-end hydraulic presses. The company's design and production capacity has reached the 50,000T level, and can provide customers around the world with a variety of high-performance hydraulic press solutions. At this exhibition, Wanda Machinery showed off many

Our company has completed assembly of 5 200-ton four-column hydraulic presses, which helps the production of electric heating pipes, 1. Efficient equipment, and completed assembly Recently, our company has successfully completed the assembly of 5 200-ton four-column hydraulic presses. This batch of equipment will be delivered to our well-known old customers, and will be put into the production process of electric heating pipes to contribute to the efficient production of customers.