Product Description
Company Profile
ZheJiang Zhongye Electromechanical Technology Co., LTD. is located in HangZhou High-tech International Enterprise Port Building 19, Liandong U Valley, High-tech Zone, HangZhou , ZheJiang Province, China.with a total investment of over 300 million yuan. Specializing in hydraulic piston pump, hydraulic valve, hydraulic motor, hydraulic cylinder and other hydraulic components research and development and remanufacturing.
Our boss has been engaged in the hydraulic industry for 36 years, and has a profound cultural background and understanding of the hydraulic field. He has successively established HangZhou CZPT Excavator Co., LTD., ZheJiang CZPT Fluid Transmission Co., LTD. In order to expand the operation and increase the export trade business, he introduced 2 directors with foreign investment experience to set up ZheJiang Zhongye Electromechanical Technology Co., LTD.
At Chairman, zhongye Electromechanical has close cooperation and exchanges with the leading universities in the field of fluid transmission in China, such as HangZhou Institute of Technology, and ZHangZhoug University, and has jointly established the “Fluid Transmission and Control Industry-University-Research Center” with HangZhou Institute of Technology, transforming scientific research theories into practical results. Determined to make the core characteristic service, and to do well, bigger, stronger, promote the common progress of the industry, drive the development of China’s hydraulic industry, to the world’s leading fluid transmission and control system.
Our Advantages
- We have a factory that produce pumps of KPM K3V/K5V/K7V series, The quality can be up to the same quality as the CZPT , but the price is far below them. It has good cost performance because our boss has been in the hydraulic industry for 36 years, he is specializing in this technical research and is seriously at quality. If you have a market there, it will be a great advantage.
- In addition, we can also providing a variety of hydraulic parts for import brands. Some are we buy from CZPT & CZPT etc (china construction manufacturers )when they want to update the machine, but they has order the pumps motors…and the products will cause waste before they can be used, and we will buy from them that is why we can supply .
- Packaging: Adopt a variety of packaging and multiple protection to ensure the integrity of products.
- Double plastic bags: the inner layer is rust and oil proof, and the outer layer is double protection to prevent rain from affecting the external packaging and then affecting the product
- High elastic foam paper: secure and provide close protection to the product
- Wooden case: prevent direct impact on products during transportation
- Logistics: The company is equipped with logistics department and freight drivers to ensure the safety and timely delivery of goods to the designated place/warehouse/port.
- Certificates: CE and EAC (Russian customs union )
- Our factory is closed to ZheJiang port & HangZhou port.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in anti-rust treatment/polybag/foam boards and wooden cartons. If you have legally registered patent,we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% advance payment, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDP, DDU.
Q4. How about your delivery time?
A: Generally, it will take 5 to 10 days after receiving your advance payment if there are stock, otherwise it will take 20-25days. The specific delivery time depends on the items and the quantity of your order.
Q5. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the freight.
Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery to ensure the quality of products.
Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,no matter where they come from.
Installation Instructions
1. oil purity In order to ensure the service life of the hydraulic cylinder, the hydraulic system must be set up in the filter, effectively prevent pollution, the purity of the oil should meet the ISO4406 standards, the quality of the filter should also meet the corresponding ISO standards. The actual condition of the filter shall be performed according to the system classification standard, but not lower than the minimum 19/15 rating of ISO4406, that is, the 24/15715 (beta) rating of ISO4572.
2. Hydraulic cylinder When the hydraulic cylinder needs to be stored for a period of time, the following methods are recommended: The hydraulic cylinder should be stored in a dry, clean, non-corrosive gas indoor environment, pay attention to protect the hydraulic cylinder from internal and external corrosion damage. The hydraulic cylinder should be as vertical as possible, and the piston rod upward, so that the hydraulic cylinder in the possibility of condensation caused by corrosion, and permanent deformation of the seal resulting in the weight of the piston and piston rod to a minimum. Hold oil port guard until connecting wire. Long-term storage, should be in the hydraulic cylinder piston on both sides of the filling application, to prevent corrosion in the cylinder. If the hydraulic cylinder is placed outside for a period of time, the unpainted surface such as the end of the piston rod should be protected.
3. One side under the protective cover of the hydraulic cylinder oil port can only be selected on the connecting line to prevent sundry entry. The connecting line must be cleaned and connected in series. The hydraulic system must be equipped with oil filter and tested regularly. In the case of a large number of fibers, fast drying chemicals adhesion, high temperature and splashing of impurities, the hydraulic cylinder must be unprotected. The piston rod should be fully tightened with load and checked regularly to prevent the connection thread from loosening; Irregular check guide rod end seal bushing and piston rod rotation deviation. The hydraulic cylinder must ensure the attachment of the piston rod and the connecting rod end, when the piston rod out and back in a straight line, otherwise it will lead to excessive wear of the gland and the cylinder, thus shortening the service life of the hydraulic cylinder. Different considerations for hydraulic cylinder installation During installation, it is recommended to choose thrust keys or thrust structures to resist the shear stress of the connection bolts. Rod mounting and extension lengths can be customized, and the installation torque is the same as the rod torque.
Certifications
Other Products
| Certification: | CE, ISO9001 |
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| Pressure: | High Pressure |
| Work Temperature: | Normal Temperature |
| Acting Way: | Double Acting |
| Working Method: | Straight Trip |
| Adjusted Form: | Regulated Type |
| Customization: |
Available
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How do hydraulic cylinders handle the challenges of minimizing friction and wear?
Hydraulic cylinders employ several mechanisms and techniques to effectively minimize friction and wear, ensuring optimal performance and longevity. Minimizing friction and wear is crucial for hydraulic cylinders as it helps to maintain efficiency, reduce energy consumption, and prevent premature failure. Here’s a detailed explanation of how hydraulic cylinders handle the challenges of minimizing friction and wear:
1. Lubrication:
– Proper lubrication is essential for minimizing friction and wear in hydraulic cylinders. Lubricating fluids, such as hydraulic oils, are used to create a thin film between moving surfaces, reducing direct metal-to-metal contact. This lubricating film acts as a protective barrier, reducing friction and preventing wear. Regular maintenance practices include monitoring and maintaining the appropriate lubricant levels to ensure optimal lubrication and minimize frictional losses.
2. Surface Finishes:
– The surface finishes of components in hydraulic cylinders play a crucial role in minimizing friction and wear. Smoother surface finishes, achieved through precision machining, grinding, or the application of specialized coatings, reduce surface roughness and frictional resistance. By minimizing surface irregularities, the risk of wear and friction-induced damage is significantly reduced, resulting in improved efficiency and extended component life.
3. High-Quality Sealing Systems:
– Well-designed and high-quality sealing systems are crucial for minimizing friction and wear in hydraulic cylinders. Seals prevent fluid leakage and contamination while maintaining proper lubrication. Advanced sealing materials, such as polyurethane or composite materials, offer excellent wear resistance and low friction characteristics. Optimal seal design and proper installation ensure effective sealing, minimizing friction and wear between the piston and cylinder bore.
4. Proper Alignment and Clearances:
– Hydraulic cylinders must be properly aligned and have appropriate clearances to minimize friction and wear. Misalignment or excessive clearances can result in increased friction and uneven wear, leading to premature failure. Proper installation, alignment, and maintenance practices, including regular inspection and adjustment of clearances, help ensure smooth and even movement of the piston within the cylinder, reducing friction and wear.
5. Filtration and Contamination Control:
– Effective filtration and contamination control are essential for minimizing friction and wear in hydraulic cylinders. Contaminants, such as particles or moisture, can act as abrasive agents, accelerating wear and increasing friction. By implementing robust filtration systems and proper maintenance practices, hydraulic systems can prevent the ingress of contaminants, ensuring clean and properly lubricated components. Clean hydraulic fluids help minimize wear and friction, contributing to improved performance and longevity.
6. Material Selection:
– The selection of appropriate materials for hydraulic cylinder components is crucial in minimizing friction and wear. Components subject to high frictional forces, such as pistons and cylinder bores, can be made from materials with excellent wear resistance, such as hardened steel or composite materials. Additionally, selecting materials with low coefficients of friction helps reduce frictional losses. Proper material selection ensures durability and minimized wear in critical components of hydraulic cylinders.
7. Maintenance and Regular Inspection:
– Regular maintenance and inspection practices are vital for identifying and addressing potential issues that could lead to increased friction and wear in hydraulic cylinders. Scheduled maintenance includes lubrication checks, seal inspections, and monitoring of clearances. By promptly detecting and rectifying any signs of wear or misalignment, hydraulic cylinders can be kept in optimal condition, minimizing friction and wear throughout their operational lifespan.
In summary, hydraulic cylinders employ various strategies to handle the challenges of minimizing friction and wear. These include proper lubrication, employing suitable surface finishes, utilizing high-quality sealing systems, ensuring proper alignment and clearances, implementing effective filtration and contamination control measures, selecting appropriate materials, and conducting regular maintenance and inspections. By implementing these practices, hydraulic cylinders can minimize friction and wear, ensuring smooth and efficient operation while extending the overall lifespan of the system.
Can you provide real-world examples of machinery that heavily rely on hydraulic cylinders?
Hydraulic cylinders are widely used in various industries and applications due to their ability to provide powerful and precise linear motion. They play a crucial role in enabling the operation of heavy machinery that requires controlled force and movement. Here are some real-world examples of machinery that heavily rely on hydraulic cylinders:
1. Construction Equipment:
– Hydraulic cylinders are extensively used in construction machinery, such as excavators, bulldozers, loaders, and cranes. These machines rely on hydraulic cylinders to perform tasks like lifting heavy loads, extending and retracting booms, tilting buckets, and controlling the movement of various components. Hydraulic cylinders provide the power and precision required to handle the demanding conditions and heavy loads encountered in construction projects.
2. Agricultural Machinery:
– Many agricultural machines, including tractors, combine harvesters, and sprayers, utilize hydraulic cylinders for critical operations. Hydraulic cylinders are used to control the movement of attachments, such as front loaders, backhoes, and plows. They enable functions like lifting and lowering implements, adjusting cutting heights, and controlling the positioning of harvesting equipment. Hydraulic cylinders enhance efficiency and productivity in agricultural operations.
3. Material Handling Equipment:
– Hydraulic cylinders are integral components of material handling equipment, such as forklifts, pallet jacks, and cranes. These machines rely on hydraulic cylinders to lift and lower loads, tilt platforms or forks, and control the movement of lifting mechanisms. Hydraulic cylinders provide the necessary strength and precision to handle heavy loads and ensure safe and efficient material handling operations.
4. Industrial Machinery:
– Various industrial machinery and equipment heavily rely on hydraulic cylinders for critical functions. Examples include hydraulic presses, injection molding machines, metal-forming machines, and hydraulic-powered robots. Hydraulic cylinders enable precise control of force and movement in these applications, allowing for accurate shaping, pressing, and assembly processes.
5. Mining Equipment:
– Hydraulic cylinders are extensively used in mining machinery and equipment. Underground mining machines, such as continuous miners and longwall shearers, utilize hydraulic cylinders for cutting, shearing, and roof support operations. Surface mining equipment, including hydraulic shovels, draglines, and haul trucks, rely on hydraulic cylinders for tasks like bucket movement, boom extension, and vehicle suspension.
6. Automotive Industry:
– The automotive industry extensively utilizes hydraulic cylinders in various applications. Hydraulic cylinders are employed in vehicle suspension systems, power steering systems, convertible tops, and hydraulic brake systems. They enable smooth and controlled movement, precise steering, and efficient braking in automobiles.
7. Aerospace and Aviation:
– Hydraulic cylinders are utilized in aerospace and aviation applications, such as aircraft landing gear systems, wing flaps, and cargo handling equipment. Hydraulic cylinders provide the necessary force and control for extending and retracting landing gear, adjusting wing flaps, and operating cargo doors, ensuring safe and reliable aircraft operations.
8. Marine and Offshore Industry:
– Hydraulic cylinders are essential components in marine and offshore equipment, including ship cranes, winches, and hydraulic-powered anchor systems. They enable lifting, lowering, and positioning of heavy loads, as well as the control of various marine equipment.
These are just a few examples of machinery and industries that heavily rely on hydraulic cylinders. The versatility, power, and precise control offered by hydraulic cylinders make them indispensable in a wide range of applications, where controlled linear motion and force are essential.
How do hydraulic cylinders ensure precise and controlled movement in equipment?
Hydraulic cylinders are widely used in various equipment and machinery to provide precise and controlled movement. They utilize hydraulic fluid and mechanical components to achieve accurate positioning, smooth operation, and reliable control. Here’s a detailed explanation of how hydraulic cylinders ensure precise and controlled movement in equipment:
1. Hydraulic Principle:
– Hydraulic cylinders operate based on Pascal’s law, which states that pressure exerted on a fluid is transmitted equally in all directions. The hydraulic fluid is contained within the cylinder, and when pressure is applied, it acts on the piston, generating force. By controlling the pressure and flow of hydraulic fluid, the movement of the cylinder can be precisely regulated, allowing for accurate and controlled motion.
2. Force and Load Management:
– Hydraulic cylinders are designed to handle specific loads and forces. The force generated by the hydraulic cylinder depends on the hydraulic pressure and the surface area of the piston. By adjusting the pressure, the force output can be controlled. This allows for precise management of the load and ensures that the cylinder can handle the required force without exerting excessive or insufficient force. Proper load management contributes to the precise and controlled movement of the equipment.
3. Control Valves:
– Control valves play a crucial role in regulating the flow and direction of hydraulic fluid within the cylinder. These valves allow operators to control the extension and retraction of the cylinder, adjust the speed of movement, and stop or hold the cylinder at any desired position. By manipulating the control valves, precise and controlled movement can be achieved, enabling operators to position equipment accurately and perform specific tasks with precision.
4. Flow Control:
– Hydraulic cylinders incorporate flow control valves to manage the rate of hydraulic fluid flow. These valves control the speed of the cylinder’s extension and retraction, allowing for smooth and controlled movement. By adjusting the flow rate, operators can precisely control the speed of the cylinder, ensuring that it moves at the desired rate without sudden or erratic movements. Flow control contributes to the overall precision and control of the equipment’s movement.
5. Position Sensing:
– To ensure precise movement, hydraulic cylinders can be equipped with position sensing devices such as linear transducers or proximity sensors. These sensors provide feedback on the position of the cylinder, allowing for accurate position control and closed-loop control systems. By continuously monitoring the position, the equipment’s movement can be controlled with high accuracy, enabling precise positioning and operation.
6. Proportional Control:
– Advanced hydraulic systems utilize proportional control technology, which allows for precise and fine-tuned control of the hydraulic cylinder’s movement. Proportional valves, often operated by electronic control systems, provide variable flow rates and pressure adjustments. This technology enables precise control of speed, force, and position, resulting in highly accurate and controlled movement of the equipment.
7. Cushioning and Damping:
– Hydraulic cylinders can incorporate cushioning and damping mechanisms to ensure smooth and controlled movement at the end of the stroke. Cushioning features, such as adjustable cushions or shock absorbers, reduce the impact and decelerate the cylinder before reaching the end of the stroke. This prevents abrupt stops and minimizes vibrations, contributing to precise and controlled movement.
8. Load Compensation:
– Some hydraulic systems utilize load compensation mechanisms to maintain precise movement even when the load varies. Load-sensing systems monitor the load demand and adjust the hydraulic pressure and flow accordingly to meet that demand. This compensation ensures that the equipment’s movement remains accurate and controlled, regardless of changes in the applied load.
In summary, hydraulic cylinders ensure precise and controlled movement in equipment through the application of hydraulic principles, force and load management, control valves, flow control, position sensing, proportional control, cushioning and damping mechanisms, and load compensation. These features and technologies allow operators to achieve accurate positioning, smooth operation, and reliable control, enabling equipment to perform tasks with precision and efficiency. The combination of hydraulic power and careful design considerations ensures that hydraulic cylinders deliver precise and controlled movement in a wide range of industrial applications.
editor by CX 2023-09-04