Product Description
BALE WRAPPER
Bale wrapper is a machine that is used to wrap bales of hay or straw. It is typically uses a hydraulic cylinder to lift and rotate the bale. The hydraulic cylinder is a crucial component of the bale wrapper as it provides the necessary force to move and manipulate the bale. It also allows for precise control over the position and rotation of the bale during the wrapping process. The hydraulic cylinder is connected to the lifting mechanism of the bale wrapper, which lifts the bale from the ground and rotates it into the wrapping position. Once the bale is wrapped, the hydraulic cylinder lowers it back down to the ground.
TRACTOR
The tractor is a crucial piece of agricultural machinery, revolutionizing farming operations through its powerful capabilities. Designed for versatility, it can perform a range of tasks, from tilling fields to planting and harvesting crops. The hydraulic cylinder is an integral part of the tractor, connected to the hydraulic system. It converts the tractor’s mechanical energy into hydraulic power, essential for manipulating various implements and attachments. The cylinder enables farmers to control these implements with precision and ease, ensuring effective and efficient completion of agricultural operations.
CULTIVATOR
The cultivator is an agricultural equipment which designed to till and cultivate the soil, making it ready for planting. The cultivator breaks up and mixes the soil, removing weeds and rocks, and generally prepares the ground for optimal plant growth. At the heart of the cultivator lies the hydraulic cylinder. This cylinder is connected to the tractor’s hydraulic system and converts the tractor’s mechanical energy into hydraulic power. The hydraulic cylinder powers the cultivator’s various moving parts, such as the tines or blades that till the soil. It allows farmers to control the depth and intensity of tillage, ensuring that the soil is properly prepared for planting.
SPRAYER
The sprayer is used to spray liquid fertilizers, pesticides, or herbicides CHINAMFG crops in agricultural. The sprayer has a large tank that holds the liquid to be sprayed, and a set of spray nozzles that atomize the liquid and distribute it over the crops. At the heart of the sprayer lies the hydraulic cylinder which is connected to the tractor’s hydraulic system and converts the tractor’s mechanical energy into hydraulic power. The hydraulic cylinder powers the various moving parts of the sprayer, such as the boom that extends outwards from the tractor and carries the spray nozzles. It allows farmers to control the height and width of spraying, ensuring that the liquid is applied uniformly across the field.
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
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Certification: | ISO9001 |
|---|---|
| Work Temperature: | -40 Degree to +120 Degree |
| Acting Way: | Double Acting or Single Acting |
| Structure: | Piston Type |
| Material: | 20#Steel/45#Steel |
| Seals: | Packer/Hallite/Gapi |
| Samples: |
US$ 300/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|
Can telescopic cylinders be used in construction equipment like cranes?
Yes, telescopic cylinders are commonly used in construction equipment, including cranes. Here’s a detailed explanation:
Role in crane operation:
Telescopic cylinders play a critical role in the operation of cranes by enabling the extension and retraction of crane booms or arms. The telescopic cylinder is typically located at the base of the boom and is responsible for extending or retracting the boom sections, allowing the crane to reach different heights and distances.
Extension and retraction mechanism:
The telescopic cylinder in a crane consists of multiple stages or sleeves that retract inside one another. This nested design allows for compact storage when the boom is retracted, minimizing the overall length of the crane. When the cylinder extends, the stages slide out, increasing the length of the boom and providing the necessary reach. The synchronized extension and retraction of the stages are facilitated by the hydraulic control system.
Hydraulic control system:
The hydraulic control system in cranes is responsible for the precise and controlled extension and retraction of telescopic cylinders. It regulates the flow of hydraulic fluid to each stage of the cylinder, ensuring synchronized movement. By adjusting the flow rate, the operator can control the speed of extension and retraction, allowing for smooth and controlled operation of the crane.
Load handling capabilities:
Telescopic cylinders in cranes are designed to handle significant loads. They provide the necessary lifting force to support heavy loads at various boom lengths. The cylinder’s bore size, rod diameter, and overall construction are engineered to withstand the forces exerted during lifting and to deliver the required lifting capacities.
Variety of crane types:
Telescopic cylinders are utilized in various types of cranes, including mobile cranes, truck-mounted cranes, and crawler cranes. These cranes are widely used in construction sites, infrastructure projects, and other lifting and material handling applications. The versatility of telescopic cylinders allows them to be integrated into different crane designs and configurations.
Advantages of telescopic cylinders in cranes:
Telescopic cylinders offer several advantages in crane applications. These include:
- Compactness: Telescopic cylinders enable the boom to be retracted to a compact size, making it easier to transport and maneuver the crane in confined spaces.
- Reach and height capabilities: The telescopic design allows the crane to achieve extended reach and height, enabling it to access elevated work areas or reach over obstacles.
- Efficiency: The controlled extension and retraction of telescopic cylinders contribute to efficient operation, allowing the crane to adjust its boom length quickly and precisely.
- Stability: Telescopic cylinders provide stability to the crane by supporting the boom and load, ensuring safe lifting and lowering of heavy objects.
Overall, telescopic cylinders are integral components of construction equipment like cranes. They enable the extension and retraction of crane booms, contribute to efficient and controlled operation, and enhance the lifting capabilities of cranes in various construction and material handling tasks.
It’s important to consult the crane manufacturer’s documentation and guidelines for specific information on the telescopic cylinder’s capabilities, maintenance requirements, and safety considerations.
How do telescopic cylinders handle variations in hydraulic seal technology?
Telescopic cylinders are designed to accommodate variations in hydraulic seal technology. Here’s a detailed explanation:
Compatibility with different seal types:
Telescopic cylinders are engineered to be compatible with various types of hydraulic seals available in the market. Whether it’s a standard O-ring seal, lip seal, V-ring seal, or any other seal design, the cylinder’s construction takes into account the requirements of different seal technologies. This compatibility ensures that telescopic cylinders can effectively handle variations in hydraulic seal technology.
Seal retention and protection:
Telescopic cylinders incorporate features to retain and protect hydraulic seals. The cylinder design includes seal grooves, seal retainers, or other mechanisms that securely hold the seals in place, preventing their displacement or damage during operation. This seal retention and protection mechanism ensures the longevity and effectiveness of the seals, regardless of the specific seal technology used.
Seal lubrication and contamination prevention:
Telescopic cylinders address the lubrication and contamination concerns associated with different seal technologies. The cylinder’s hydraulic system is designed to provide proper lubrication to the seals, ensuring smooth movement and reducing friction. Additionally, measures such as seal scrapers or wipers are implemented to prevent the ingress of contaminants, such as dust, dirt, or moisture, which could compromise the performance of the seals. These lubrication and contamination prevention mechanisms cater to the specific requirements of various seal technologies.
Seal replacement and maintenance:
Telescopic cylinders are designed to facilitate seal replacement and maintenance procedures. The cylinder construction allows for easy access to the seals, simplifying the replacement process when necessary. This feature is advantageous when dealing with different seal technologies, as it enables swift and efficient maintenance, regardless of the specific seal design being used.
Adaptability to seal advancements:
Telescopic cylinder designs often incorporate adaptability to advancements in hydraulic seal technology. Manufacturers continuously develop new seal technologies to improve performance, durability, and efficiency. Telescopic cylinders are designed with flexibility to accommodate future advancements, ensuring compatibility with emerging seal technologies and allowing for upgrade possibilities without significant modifications to the cylinder itself.
Overall, telescopic cylinders are engineered to handle variations in hydraulic seal technology through compatibility with different seal types, seal retention and protection features, seal lubrication and contamination prevention mechanisms, ease of seal replacement and maintenance, and adaptability to seal advancements. These design considerations ensure that telescopic cylinders can effectively work with different seal technologies, providing reliable and efficient performance in hydraulic systems.
It’s important to consult the equipment manufacturer’s documentation and guidelines for specific information on the recommended seal types and maintenance practices for telescopic cylinders.
How does a telescopic cylinder handle variations in extension and retraction?
A telescopic cylinder is designed to handle variations in extension and retraction through its inherent structure and hydraulic system. Here’s a detailed explanation:
Handling variations in extension:
When extending a telescopic cylinder, each stage or sleeve extends successively, one inside the other, to achieve the desired stroke length. This nested structure allows for incremental extension, providing flexibility in adapting to different extension requirements. The hydraulic system supplies pressurized fluid to each stage’s piston, generating the necessary force for extension. The internal flow paths in the cylinder ensure synchronized movement of the stages, allowing for controlled and precise extension.
Handling variations in retraction:
During retraction, the telescopic cylinder stages retract in the reverse order of extension. The hydraulic system controls the flow of fluid to each stage, allowing for controlled retraction. The nested structure of the cylinder ensures that each stage retracts smoothly inside the preceding stage. The hydraulic pressure and flow are regulated to prevent rapid or uncontrolled retraction, ensuring safe and stable operation.
Compensating for variations:
Telescopic cylinders are designed to compensate for variations in extension and retraction through their hydraulic control systems. The hydraulic system can be adjusted to vary the flow rate, pressure, or force applied to each stage, allowing for fine-tuning and accommodating different extension and retraction requirements. Additionally, the locking mechanisms incorporated in telescopic cylinders help maintain the extended position securely, compensating for external forces or variations in loads.
Overall, the nested structure, hydraulic system, and locking mechanisms of telescopic cylinders provide the necessary flexibility and control to handle variations in extension and retraction. This enables the cylinders to adapt to different operating conditions, loads, and stroke length requirements in various applications.
It’s important to follow the manufacturer’s guidelines and recommendations for proper operation, maintenance, and adjustment of telescopic cylinders to ensure their reliable and safe performance.
editor by Dream 2024-05-07
Leave a Reply