Product Description
U-Series Hydraulic Dock Leveler
The USeries Hydraulic Dock Leveler is a modern material handling solution, renowned for its simplicity, efficiency, and reliability. At the heart of this exceptional performance lies the hydraulic cylinder, a crucial component that transforms hydraulic energy into the motive force required for leveler operation.
The hydraulic cylinder in the USeries is specifically designed to handle the unique challenges of the material handling industry. Its robust construction and advanced materials ensure durability, while the efficient design promotes maximum force output with minimal energy consumption.
A-Series Hydraulic Dock Leveler
The hydraulic cylinder in the ASeries is specifically designed to withstand the demands of continuous use in a wide range of environments. Its robust construction and advanced materials ensure durability, while the efficient design promotes maximum force output with minimal energy consumption.
Furthermore, the cylinder's efficiency is key to maintaining optimal operational speed and precision. Advanced engineering features, such as optimized piston geometry and friction-reducing coatings, enhance the cylinder's performance,contributing to the overall efficiency of the A-Series Hydraulic Dock Leveler.
LHP Series Hydraulic Dock Leveler
The hydraulic cylinder in the LHP Series is a master of converting hydraulic pressure into motive force. This force is pivotal in manipulating the leveler's position, whether it's adjusting for height differences or handling heavy loads. Its robust design and construction ensure durability, even under the most rigorous conditions.
The cylinder's role in maintaining consistent and accurate positioning cannot be overstated. Its precision and reliability are paramount in ensuring safe and efficient operation, particularly when handling bulk materials or containers. It counteracts external forces, maintaining stability and preventing unintended movements during operation.
Verse Series Hydraulic Dock Leveler
The hydraulic cylinder, a prime mover in the Verse Series Hydraulic Dock Leveler, is responsible for converting hydraulic energy into mechanical force. This force is then used to raise and lower the dock leveler, enabling it to adapt to the height differences between the dock and the truck bed. The cylinder's design and construction must be robust enough to withstand the rigors of continuous use in a wide range of environmental conditions.
The hydraulic cylinder's performance is crucial for the safe and efficient operation of the dock leveler. It ensures that the leveler plate maintains a consistent and stable position, even under heavy loads. The cylinder's reliability is further enhanced by its ability to counteract any external forces that may act on the leveler, thus preventing unintended movements.
About Us
Established in 1988 , HangZhou LD Machinery Co, LTD. (hereinafter referred to "LD") is a leading manufacturer specializing in the design, research, development, manufacture and marketing in the hydraulic industry. Being one of major suppliers of customized components and cylinders for manufacturers spreaded all over the world, the company is committed to offer high quality products with competitive prices and excellent service worldwide.
Headquartered in HangZhou City, ZHangZhoug Province, the company wholly owns a subsidiary production factory named "HangZhou YUEWEI Hydraulic Technology Co., Ltd", which covers an area of more than 380,000 square meters , possesses abundant technical strength and sound production management system, superior machining production equipment, strict and effective quality control system, advanced and excellent inspection instruments.
More than 35 years experience in machining industry, with over 10 experienced technical engineers and 150 skilled workers, LD has a senior engineering technical team with special skills and rich experience in product design, casting, forging, and CNC machining, can handle special material, structure, defect and processing, meet the evolving needs, and provide optimal solution and real one-stop service to customers.
Hydraulic Cylinder Producing Process
Step1: Quality Control on Raw Material
We have our own lab in factory, inspect the raw material and do the test. For every batch of material we received, we will ask supplier provide their certificate, and then cut them to do the test again to see if the results match the certification. Also, every batch we received, we will cut them into pieces to check the air bubbles. Once they are all qualified, we will accept it, and all detail information will be recording in our ERP system. We will also pay lot of attention on the salt spray test for chrome rod. Every month, we will cut the material, put them into test machine to see if it reach the requirement. All the result will be recorded at our QC department. If customer need, we can provide it.
Step2: Quality Control on Machining
we start doing components machining from 1988 with 36 years experience now and insist doing 100% inspection. We spend lots of money, invest on auto robots and machines. Now half of the producing line is by robot so that we can ensure our quality be stable good. For every part of the cylinder, we do 3 times inspecting. Firstly, workers will do self inspection. Secondly, we have tour-hour inspection checking the products, 2 times in the morning and 2 times in the afternoon, make sure that every step is good. After the products are all completed, we will do 100% inspection. For thread, for the tolerance, everything, we need double check. Also, we have specific warehouse just for the measuring tools. Every inspector have their own measuring tool and we will check the measuring tools regularly to make sure they are all in good condition, so that the measuring results will be convincing.
Step3: Quality Control on Welding
We are qualified to AWS certification, which is very popular in North American market. First, for the visual test, we will make sure that every components are welded good, look beautiful. And the second, we need to check the penetration. We have more than 15 years experience, we do know what kind of designing angle can make the cylinder welding strong. Once we finish the first article, we will cut it and analyse the welding to see if it is fulfill the groove. And then do the radiographic testing to make sure there is no gap inside. What's more, we will do the ultrasonic test to check the program for the robot. Now 80% of welding is doing by robot. Once the program confirmed, no 1 can change it unless the welding manager, and they only have 5% right.
Step4: Quality Control on Assembling
For assembling, we have some difference with others. The brand we uses for seals are all those famous brand like Aston, Parker, Hallite. The cylinder we give to our customer has 2 years warranty. For our company, we engrave our part number and manufacturing date for the quality warranty. So no matter for seals or any others, as long as they are parts of cylinder, if it is under 2 years, we will take responsibility for them. And we will do the test for every cylinder like for pressure after we finish assembling.
Step5: Quality Control on Painting
We have our half auto painting line. Right now, we can paint about 1500 cylinders per day, which is about 1 container. Before we do the painting, we will do the wash first and for every cylinder, we will test for hardness, thickness and adhesion to make sure the painting are all good, which will be recorded into OQC report, print out and stick on the box, ship to you with your products.
Step6: Hydraulic Cylinder Packing
For every cylinder, we have the stick to show the detail information like bore size, stroke and working pressure. And we will use individual plastic bag packing. If customer need, we can also use individual carton box packing. We will fasten 1 floor after 1 floor with plat, so customer can only cut what they need and other layer will still be fasten. Moreover, there will be plywood pallet or plywood box for customer choosing. We will also send the loading picture to customer after we ship them to make sure everything is well loaded in China.
Packing Reference
Order Process
Enterprise Features
FAQ
Q1. What is LD product's quality assurance?
100% inspection for each product before shipping with inspection rereport for tracking.
Q2: How long is the warranty on LD products?
The warranty is 2 years for general products since the date of shipment.
Q3: How LD deal with the quality problem during warranty period?
1. LD will take the corresponding cost caused by customer local reparing.
2. LD will provide the product by free if the repair cost is higher than the product value, but the freight involved shall be borne by customer side.
Q4: How to ensure the order can be shipped on time?
LD will send the "production schedule" every week after receiving customers' orders. If any delays, LD will inform customers 3 weeks in advance, so as to facilitate the customer to arrange the schedule.
Q5: Does LD offer delivery service?
Yes. LD has deep cooperation with logistics companies all over the world to provide customers with quick and convenient "Door-to-Door services",including sea, air and express.
Q6: How LD control the product quality?
1. Raw materials: We will test the material of each batch of raw materials we receive, and the piston rod will be tested with salt spray. This is to ensure that the material of our products meets the requirements at the beginning.
2. Processing: We have the leading machining equipment, and obtained ISO9001 certification.
3. Welding: Our factory is equipped with welding robots, and has obtained the AWS certification.
4. Assembly pressure test: 100% testing with OQC report for cHangZhou. The seals we use are: Hallite, Aston and Gapi
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| After-sales Service: | Local Service Support |
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| Warranty: | 2 Years Warrenty |
| Application: | Dock Leveler |
| Lift Mechanism: | Scissor Lift |
| Carrying Capacity: | Middle-Level |
| Moves: | Moving |
| Samples: |
US$ 199/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
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What role do hydraulic cylinders play in optimizing power distribution and efficiency?
Hydraulic cylinders play a significant role in optimizing power distribution and efficiency in various applications. They are widely used in industries such as construction, manufacturing, agriculture, and transportation, where efficient power transmission and precise control are essential. Here's a detailed explanation of the role hydraulic cylinders play in optimizing power distribution and efficiency:
1. Power Transmission:
- Hydraulic cylinders serve as a means of power transmission in hydraulic systems. They convert the hydraulic fluid's pressure and flow into linear mechanical force, allowing for controlled movement of loads. Hydraulic cylinders efficiently transmit power from an energy source, such as a hydraulic pump, to the working components of the system. The ability to transmit power over long distances with minimal energy losses makes hydraulic cylinders an efficient choice for various applications.
2. High Power Density:
- Hydraulic cylinders offer high power density, meaning they can generate significant force relative to their size. This characteristic enables compact and lightweight hydraulic systems while delivering substantial power output. Hydraulic cylinders can produce high forces even at low operating speeds, making them suitable for heavy-duty applications. The high power density of hydraulic cylinders contributes to the optimization of power distribution by maximizing the force output while minimizing the system's overall size and weight.
3. Load Handling and Control:
- Hydraulic cylinders provide precise load handling and control capabilities, contributing to power distribution optimization. By adjusting the flow of hydraulic fluid to the cylinder, operators can control the speed, force, and direction of the cylinder's movement. This level of control allows for accurate positioning and smooth operation of loads, reducing energy waste and improving overall system efficiency. Hydraulic cylinders enable precise load handling and control, leading to optimal power distribution and improved energy efficiency.
4. Variable Force and Speed:
- Hydraulic cylinders offer the advantage of variable force and speed control. By regulating the flow of hydraulic fluid, the force exerted by the cylinder can be adjusted as needed. This flexibility enables hydraulic systems to adapt to different load requirements, optimizing power distribution. Hydraulic cylinders can operate at varying speeds, allowing for efficient power distribution across different stages of an operation. The ability to vary force and speed according to the application's demands enhances energy efficiency and overall system performance.
5. Energy Recovery:
- Hydraulic cylinders can contribute to energy efficiency through energy recovery mechanisms. In certain applications, hydraulic systems utilize accumulators to store and release energy. Hydraulic cylinders can store energy during deceleration or when the load is lowering, and then release it to assist in subsequent movements. This energy recovery process reduces the overall energy consumption of the system, optimizing power distribution and improving efficiency. The ability to recover and reuse energy enhances the sustainability and cost-effectiveness of hydraulic systems.
6. Integrated Control Systems:
- Hydraulic cylinders can be integrated into advanced control systems, such as servo control or proportional control systems. These systems utilize electronic feedback, sensors, and control algorithms to optimize power distribution and efficiency. By continuously monitoring and adjusting the flow of hydraulic fluid, the control systems ensure that the cylinder operates at the most efficient operating point, minimizing energy losses and maximizing power distribution. Integrated control systems enhance the overall energy efficiency of hydraulic systems and contribute to power optimization.
7. System Efficiency Improvement:
- Hydraulic cylinders, when combined with other components in a hydraulic system, contribute to overall system efficiency improvement. The integration of efficient hydraulic pumps, valves, and actuators helps minimize energy losses, pressure drops, and heat generation. By optimizing the design and configuration of the hydraulic system, including the selection of appropriate cylinder sizes, operating pressures, and control strategies, power distribution can be optimized, leading to improved energy efficiency. Proper system design and component selection are critical for achieving optimal power distribution and efficiency.
In summary, hydraulic cylinders play a crucial role in optimizing power distribution and efficiency in various applications. They enable efficient power transmission, offer high power density, provide precise load handling and control, allow for variable force and speed control, facilitate energy recovery, can be integrated into advanced control systems, and contribute to overall system efficiency improvement. By leveraging the capabilities of hydraulic cylinders, industries can achieve better power utilization, reduced energy consumption, and improved system performance.
Handling the Challenges of Minimizing Fluid Leaks and Contamination in Hydraulic Cylinders
Hydraulic cylinders face challenges when it comes to minimizing fluid leaks and contamination, as these issues can impact the performance, reliability, and lifespan of the system. However, there are several measures and design considerations that help address these challenges effectively. Let's explore how hydraulic cylinders handle the challenges of minimizing fluid leaks and contamination:
- Sealing Systems: Hydraulic cylinders employ advanced sealing systems to prevent fluid leaks. These systems typically include various types of seals, such as piston seals, rod seals, and wiper seals. The seals are designed to create a tight and reliable barrier between the moving components of the cylinder and the external environment, minimizing the risk of fluid leakage.
- Seal Material Selection: The choice of seal materials is crucial in minimizing fluid leaks and contamination. Hydraulic cylinder manufacturers carefully select seal materials that are compatible with the hydraulic fluid used and resistant to wear, abrasion, and chemical degradation. This ensures the longevity and effectiveness of the seals, reducing the likelihood of leaks or premature seal failure.
- Proper Installation and Maintenance: Ensuring proper installation and regular maintenance of hydraulic cylinders is essential for minimizing fluid leaks and contamination. During installation, attention should be given to proper alignment, torqueing of bolts, and adherence to recommended procedures. Regular maintenance includes inspecting seals, replacing worn-out components, and addressing any signs of leakage promptly. Proper maintenance practices help identify and rectify issues before they escalate and cause significant problems.
- Contamination Control: Hydraulic cylinders incorporate measures to control contamination and maintain fluid cleanliness. This includes the use of filtration systems, such as in-line filters, to remove particles and contaminants from the hydraulic fluid. Additionally, hydraulic reservoirs often have breathers and desiccant filters to prevent moisture and airborne contaminants from entering the system. By controlling contamination, hydraulic cylinders minimize the risk of damage to internal components and maintain optimal system performance.
- Environmental Protection: Hydraulic cylinders may be equipped with protective features to safeguard against external contaminants. For example, bellows or protective boots can be installed to shield the rod and seals from debris, dirt, or moisture present in the operating environment. These protective measures help extend the life of the seals and enhance the overall reliability of the hydraulic cylinder.
In summary, hydraulic cylinders employ sealing systems, appropriate seal materials, proper installation and maintenance practices, contamination control measures, and environmental protection features to handle the challenges of minimizing fluid leaks and contamination. By implementing these measures, manufacturers can ensure reliable and long-lasting hydraulic cylinder performance, minimize the risk of fluid leakage, and maintain the cleanliness of the hydraulic system.
Can you explain the role and significance of hydraulic cylinders in machinery?
Hydraulic cylinders play a crucial role in machinery across various industries. They are essential components that provide controlled and powerful linear motion, enabling the operation of heavy equipment and facilitating numerous tasks. The role and significance of hydraulic cylinders in machinery can be explained in detail as follows:
Role of Hydraulic Cylinders:
- Conversion of Hydraulic Energy: Hydraulic cylinders convert hydraulic energy, typically in the form of pressurized hydraulic fluid, into linear force and motion. This conversion allows machinery to perform tasks such as lifting, pushing, pulling, clamping, tilting, and controlling various mechanisms.
- Generation of Linear Motion: Hydraulic cylinders generate linear motion by utilizing the principles of Pascal's law. When hydraulic fluid is directed into one side of the cylinder, it applies pressure on the piston, resulting in linear movement of the piston and the attached piston rod. This linear motion can be used to actuate other components within the machinery or directly perform the required task.
- Force Generation: Hydraulic cylinders are capable of generating high forces due to the hydraulic pressure applied to the piston. The force output of a hydraulic cylinder depends on the surface area of the piston and the pressure of the hydraulic fluid. This force allows machinery to exert significant power for lifting heavy loads, applying pressure, or overcoming resistance.
- Precise Control: Hydraulic cylinders offer precise control over the linear motion and force exerted. By regulating the flow of hydraulic fluid, the speed and direction of the cylinder's movement can be accurately adjusted. This level of control is crucial in machinery that requires precise positioning, delicate movements, or synchronization of multiple cylinders.
- Integration with Hydraulic Systems: Hydraulic cylinders are integral parts of hydraulic systems used in machinery. They work in conjunction with hydraulic pumps, valves, and actuators to create a complete hydraulic circuit. This integration allows for efficient power transmission, control, and coordination of various machine functions.
Significance of Hydraulic Cylinders:
- Heavy Equipment Operation: Hydraulic cylinders are vital in heavy machinery used in construction, mining, agriculture, material handling, and other industries. They enable the lifting and movement of heavy loads, the operation of attachments, and the performance of tasks that require high force and precision.
- Versatility and Adaptability: Hydraulic cylinders are versatile components that can be designed and tailored to meet specific machinery requirements. They can be integrated into various types of equipment and customized based on factors such as force capacity, stroke length, speed, and mounting options. This adaptability makes hydraulic cylinders suitable for diverse applications.
- Durability and Reliability: Hydraulic cylinders are built to withstand rigorous operating conditions, including high pressures, heavy loads, and continuous use. They are designed with robust materials, precise machining, and effective sealing systems to ensure durability and reliability over extended periods of operation.
- Safety and Load Control: Hydraulic cylinders provide safe and controlled operation in machinery. They offer overload protection mechanisms, such as relief valves, to prevent damage caused by excessive force or pressure. Additionally, hydraulic cylinders allow for precise load control, minimizing the risk of accidents during lifting, lowering, or positioning of heavy loads.
- Compact Design: Hydraulic cylinders offer a high power-to-size ratio, allowing for compact machinery design. Their relatively small size compared to the forces they can generate makes them suitable for applications where space is limited or weight restrictions apply.
- Energy Efficiency: Hydraulic cylinders contribute to energy efficiency in machinery. The use of hydraulic systems allows for the transfer of power over long distances without significant power losses. Additionally, hydraulic cylinders can incorporate energy-saving features such as load-sensing technology and regenerative circuits, reducing energy consumption.
Overall, hydraulic cylinders play a vital role in machinery by providing controlled and powerful linear motion. Their significance lies in their ability to convert hydraulic energy, generate high forces, offer precise control, integrate with hydraulic systems, and facilitate the operation of heavy equipment across various industries. Hydraulic cylinders contribute to increased productivity, safety, and efficiency in machinery applications, making them indispensable components in modern-day engineering.
editor by CX 2024-01-30