Product Description
Hydraulic Cylinder used on Front Loader
Hydraulic cylinders are an integral part of many machines and devices, and front loaders are no exception. Front loaders, also known as front end loaders or simply loaders, are heavy equipment machines used for moving, handling, and lifting materials such as dirt, sand, rocks, and other construction debris. The hydraulic cylinder in a front loader is a key component that enables the machine to perform its various functions. It is responsible for lifting the bucket and moving it into position to scoop up material. The hydraulic cylinder also allows the bucket to be lowered and dumped, releasing the material at the desired location. The combination of the hydraulic cylinder and the front loader is a force to be reckoned with. They work together seamlessly, enabling the loader to perform tasks quickly and efficiently. The hydraulic cylinder’s strength and precision make it an indispensable part of the front loader, ensuring its smooth operation and reliability.
Hydraulic Cylinder used on Side Loader
The side loader garbage truck is a remarkable piece of engineering, designed with efficiency and hygiene in mind. The truck’s unique design, which includes a hydraulic cylinder, allows it to handle large volumes of trash with ease. The hydraulic cylinder in a side loader is made up of 2 main parts: the cylinder tube and the piston. The cylinder tube is a hollow metal cylinder that contains the hydraulic fluid. The piston is a CHINAMFG metal rod that slides within the cylinder tube. The hydraulic cylinder is the driving force behind the side loader garbage truck’s capabilities. It powers the lifting and tilting mechanisms that are essential for emptying trash containers into the truck’s body. The cylinder uses pressurized hydraulic fluid to generate the force necessary to manipulate the trash container.
Hydraulic Cylinder used on Rear Loader
The rear loader garbage truck is a specialized vehicle designed to handle the collection and disposal of trash in an efficient and hygienic manner. It features a unique loading mechanism that allows trash to be emptied directly into the truck’s body from the side, rather than from the rear or top.The hydraulic cylinder is what powers the trash container lifting mechanism. It uses pressurized hydraulic fluid to generate the force needed to tilt and empty the trash container into the truck’s hopper. This design allows for quick and effortless emptying, reducing the time and effort needed for trash collection.The hydraulic cylinder in a rear loader must be able to withstand significant forces and pressures, as it is responsible for lifting heavy loads and repeatedly performing this task over time.
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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| Certification: | ISO9001 |
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| Pressure: | Medium Pressure |
| Work Temperature: | Normal Temperature |
| Acting Way: | Double Acting |
| Working Method: | Straight Trip |
| Adjusted Form: | Regulated Type |
| Samples: |
US$ 299/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
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What advantages do double-acting hydraulic cylinders offer in terms of versatility?
Double-acting hydraulic cylinders offer several advantages in terms of versatility, making them widely used in various applications. Here’s a detailed explanation:
1. Bi-Directional Operation: One of the primary advantages of double-acting hydraulic cylinders is their bi-directional operation. Unlike single-acting cylinders that generate force in one direction (usually the extension stroke) and rely on external forces or springs for the return stroke, double-acting cylinders can generate force in both directions. This allows for more flexibility in controlling the movement and positioning of loads, making them suitable for applications that require precise control and multi-directional force.
2. Efficient Power Transmission: Double-acting hydraulic cylinders provide efficient power transmission from the hydraulic fluid to the load. When pressurized fluid is supplied to the cap end of the cylinder, it pushes the piston to extend and generate force. Conversely, when fluid is supplied to the rod end, it retracts the piston. This efficient power transmission allows for effective force generation and precise control, enabling the cylinder to handle a wide range of loads and applications.
3. Adjustable Force and Speed: Double-acting hydraulic cylinders offer the ability to adjust the force and speed of operation. By controlling the hydraulic pressure supplied to the cylinder, the force output can be varied to match the specific load requirements. This adjustability allows for versatility in handling different loads and controlling the speed of movement. It also enables the cylinder to adapt to changing load conditions, making it suitable for applications with varying load capacities.
4. Versatile Mounting Options: Double-acting hydraulic cylinders are designed with versatile mounting options, providing flexibility in their installation and integration into different systems. They can be mounted in various orientations, such as horizontal, vertical, or at an angle, depending on the specific application requirements. This versatility in mounting options allows for easy integration into existing systems and accommodates different space constraints.
5. Wide Range of Sizes and Capacities: Double-acting hydraulic cylinders are available in a wide range of sizes and capacities, offering versatility in meeting diverse application needs. They can be found in small-scale applications, such as automotive equipment or industrial machinery, as well as large-scale applications, such as construction equipment or heavy-duty hydraulic presses. This range of sizes and capacities ensures that there is a suitable double-acting cylinder for various load requirements and operating conditions.
6. Compatibility with Hydraulic Systems: Double-acting hydraulic cylinders are compatible with hydraulic systems, which are widely used in many industries. They can be easily integrated into existing hydraulic systems, allowing for seamless operation and compatibility with other hydraulic components, such as pumps, valves, and actuators. This compatibility enhances the versatility of double-acting cylinders and facilitates their integration into a wide range of hydraulic applications.
7. Reliability and Durability: Double-acting hydraulic cylinders are known for their reliability and durability. They are designed to withstand high pressures, heavy loads, and harsh operating conditions. With proper maintenance and care, they can provide long service life and consistent performance, making them a reliable choice for demanding applications.
Overall, the versatility of double-acting hydraulic cylinders stems from their bi-directional operation, efficient power transmission, adjustable force and speed, versatile mounting options, wide range of sizes and capacities, compatibility with hydraulic systems, and their reliability and durability. These qualities enable them to be used in a diverse range of applications across various industries.
Can double-acting hydraulic cylinders be integrated into manufacturing machinery for pressing and clamping?
Yes, double-acting hydraulic cylinders are commonly integrated into manufacturing machinery for pressing and clamping operations. Here’s a detailed explanation:
1. Pressing Operations: Double-acting hydraulic cylinders are widely used in manufacturing machinery for pressing applications. These cylinders provide the necessary force to press objects together, such as joining components or shaping materials. Hydraulic presses equipped with double-acting cylinders can generate high forces consistently and precisely. The bidirectional force generation of double-acting cylinders allows for controlled pressing in both the extending and retracting strokes, making them suitable for a wide range of pressing tasks in industries such as automotive, aerospace, and metal fabrication.
2. Clamping Operations: Double-acting hydraulic cylinders are also well-suited for clamping operations in manufacturing machinery. Clamping involves holding objects securely in place during various processes, such as machining, welding, or assembly. Hydraulic clamps utilizing double-acting cylinders provide reliable and strong clamping force. The ability to generate force in both directions allows for secure clamping during both the clamping and unclamping phases. This ensures the stability and safety of workpieces during manufacturing operations, preventing movement or misalignment.
3. Force and Stroke Control: Double-acting hydraulic cylinders offer precise control over force and stroke, enhancing their effectiveness in pressing and clamping applications. The flow rate and pressure of the hydraulic fluid can be adjusted using valves and control mechanisms, allowing operators to regulate the force applied by the cylinder. Additionally, the stroke length of the cylinder can be controlled, enabling precise positioning and adjustment to accommodate different workpiece sizes and shapes.
4. Customization and Integration: Double-acting hydraulic cylinders can be customized and integrated into manufacturing machinery to meet specific pressing and clamping requirements. Manufacturers can design cylinders with varying sizes, capacities, and mounting options to fit the machinery and application needs. The modular nature of hydraulic systems allows for easy integration and interchangeability of cylinders, ensuring compatibility with existing manufacturing equipment.
5. Safety Features: Manufacturing machinery incorporating double-acting hydraulic cylinders often incorporates safety features to ensure safe operation during pressing and clamping processes. These may include pressure relief valves, emergency stop mechanisms, and safety interlocks. These features help protect operators, prevent excessive forces or unexpected movements, and provide fail-safe operation.
Given their suitability for pressing and clamping operations, precise force and stroke control, customization and integration capabilities, as well as the inclusion of safety features, double-acting hydraulic cylinders are widely integrated into manufacturing machinery. Their reliable performance and versatility make them essential components in achieving efficient and accurate pressing and clamping processes in various manufacturing industries.
How does a double-acting hydraulic cylinder differ from a single-acting one?
A double-acting hydraulic cylinder and a single-acting hydraulic cylinder differ in their functionality and ability to generate force. Here’s a detailed explanation of the differences:
1. Functionality: A double-acting hydraulic cylinder can generate force in both directions of its stroke, whereas a single-acting hydraulic cylinder can only generate force in one direction.
2. Construction: In a double-acting hydraulic cylinder, there are two hydraulic ports—one connected to the rod end and the other to the cap end of the cylinder. This allows hydraulic fluid to enter and exit both chambers of the cylinder, enabling force generation in both directions. In contrast, a single-acting hydraulic cylinder has only one hydraulic port, typically connected to the cap end. The rod end of a single-acting cylinder is often vented or equipped with a smaller hydraulic port to facilitate the return of the piston.
3. Operation: A double-acting hydraulic cylinder operates by supplying hydraulic fluid to the appropriate ports to extend or retract the piston. By controlling the flow and pressure of the hydraulic fluid, operators can regulate the direction and speed of the piston’s movement, generating pushing and pulling forces. In a single-acting hydraulic cylinder, hydraulic fluid is supplied to the port to extend the piston and generate force in one direction. The return stroke of the piston is accomplished by the force of gravity or an external mechanical load, as there is no hydraulic pressure applied to retract the piston.
4. Applications: Due to their ability to generate force in both directions, double-acting hydraulic cylinders are suitable for applications that require bidirectional force, precise control, and versatility. They are commonly used in tasks such as lifting, pushing, pulling, clamping, and more. Single-acting hydraulic cylinders, on the other hand, are often employed in applications where force is required in only one direction, such as in simple lifting or lowering tasks.
5. Efficiency: Double-acting hydraulic cylinders offer improved efficiency compared to single-acting cylinders in applications that require frequent or continuous bidirectional force. With a double-acting cylinder, the force can be applied in both the extension and retraction strokes, allowing for increased productivity and reduced cycle times.
In summary, the main difference between a double-acting hydraulic cylinder and a single-acting hydraulic cylinder lies in their ability to generate force in one or both directions. While a double-acting cylinder can generate force in both directions, a single-acting cylinder can generate force in only one direction. This distinction impacts their construction, operation, applications, and efficiency in various hydraulic systems.
editor by CX 2024-04-03