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
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| Warranty: | 2 Years Warranty |
|---|---|
| Seals: | Packer/Hallite/Gapi |
| Structure: | Piston Type |
| Surface Treatment: | Hard Chrome, Zinc, Copper |
| Oil Port: | NPT/SAE/BSPP |
| Material: | 20#Steel/45#Steel |
| Samples: |
US$ 75/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|
How do manufacturers ensure the durability and reliability of hydraulic cylinders?
Manufacturers employ various strategies and techniques to ensure the durability and reliability of hydraulic cylinders. These measures are crucial as hydraulic cylinders are often subjected to demanding operating conditions and heavy loads. To ensure their longevity and dependable performance, manufacturers focus on the following aspects:
1. High-Quality Materials:
– Manufacturers use high-quality materials in the construction of hydraulic cylinders. Components such as cylinder barrels, piston rods, seals, and bearings are made from materials that possess excellent strength, corrosion resistance, and wear resistance properties. Common materials used include high-grade steel alloys, chrome-plated rods, and specialized coatings. The selection of appropriate materials ensures that hydraulic cylinders can withstand the stresses, pressures, and environmental conditions they encounter during operation.
2. Robust Design:
– Hydraulic cylinders are designed to withstand high loads and harsh operating conditions. Manufacturers use computer-aided design (CAD) software and finite element analysis (FEA) techniques to optimize the cylinder’s structural integrity and performance. The design includes factors such as proper wall thickness, reinforcement in critical areas, and appropriate sizing of components. Robust design practices ensure that hydraulic cylinders can withstand the forces and stresses they encounter, preventing premature failure and ensuring durability.
3. Quality Manufacturing Processes:
– Manufacturers follow stringent quality control measures during the manufacturing processes of hydraulic cylinders. These processes include precision machining, welding, heat treatment, and surface finishing. Skilled technicians and advanced machinery are employed to ensure dimensional accuracy, proper fitment of components, and overall quality. By adhering to strict manufacturing processes and quality standards, manufacturers can produce hydraulic cylinders with consistent performance and reliability.
4. Sealing Technology:
– The sealing system of hydraulic cylinders is critical for their durability and reliability. Manufacturers utilize advanced sealing technologies such as lip seals, O-rings, and composite seals to prevent fluid leakage and ingress of contaminants. Properly designed and high-quality seals ensure that hydraulic cylinders can maintain their performance over extended periods. Seals are tested for their compatibility with the hydraulic fluid, pressure resistance, and resilience to environmental factors such as temperature and humidity.
5. Performance Testing:
– Manufacturers subject hydraulic cylinders to rigorous performance testing to validate their durability and reliability. These tests simulate real-world operating conditions and evaluate factors such as load capacity, pressure resistance, fatigue life, and leakage. Performance testing helps identify any design flaws or weaknesses in the hydraulic cylinder and allows manufacturers to make necessary improvements. By conducting thorough performance testing, manufacturers can ensure that hydraulic cylinders meet or exceed the required performance standards.
6. Compliance with Industry Standards:
– Manufacturers adhere to industry standards and regulations to ensure the durability and reliability of hydraulic cylinders. These standards, such as ISO 6020/6022 and NFPA T3.6.7, provide guidelines for design, manufacturing, and performance requirements. By following these standards, manufacturers ensure that hydraulic cylinders are designed and built to meet specific quality and safety criteria. Compliance with industry standards helps establish a baseline for durability and reliability and instills confidence in the performance of hydraulic cylinders.
7. Regular Maintenance and Service:
– Manufacturers provide recommendations for regular maintenance and service of hydraulic cylinders. This includes guidelines for lubrication, inspection of components, and replacement of wear parts such as seals and bearings. Following the manufacturer’s maintenance guidelines helps ensure the long-term durability and reliability of hydraulic cylinders. Regular maintenance also allows for the early detection of potential issues, preventing major failures and extending the service life of the hydraulic cylinders.
8. Customer Support and Warranty:
– Manufacturers provide customer support and warranty services to address any issues that arise with hydraulic cylinders. They offer technical assistance, troubleshooting guidance, and replacement of defective components. The warranty ensures that customers receive reliable and durable hydraulic cylinders and provides recourse in case of any manufacturing defects or premature failures. Strong customer support and warranty policies reflect the manufacturer’s commitment to the durability and reliability of their products.
In summary, manufacturers ensure the durability and reliability of hydraulic cylinders through the use of high-quality materials, robust design practices, stringent manufacturing processes, advanced sealing technology, thorough performance testing, compliance with industry standards, regular maintenance guidelines, and customer support with warranty services. By focusing on these aspects, manufacturers can produce hydraulic cylinders that can withstand demanding conditions, provide long service life, and deliver reliable performance in various applications.
What considerations are important when selecting hydraulic cylinders for mobile equipment?
To select hydraulic cylinders for mobile equipment, several important considerations need to be taken into account. Here are the key factors to consider:
- Load Capacity: Determine the maximum load or force that the hydraulic cylinder will need to support. This includes both the static load and any dynamic or shock loads that may be encountered during operation.
- Stroke Length: Consider the required stroke length, which is the distance the hydraulic cylinder can extend and retract. Ensure that the stroke length is sufficient for the specific application and range of motion needed.
- Operating Pressure: Determine the maximum operating pressure required for the hydraulic system. This will depend on the load and the specific application. Select a hydraulic cylinder with a pressure rating that exceeds the maximum operating pressure to ensure safety and durability.
- Mounting Style: Consider the available space and the mounting requirements of the mobile equipment. Hydraulic cylinders come in various mounting styles, such as flange, trunnion, clevis, and pivot, among others. Choose a mounting style that is compatible with the equipment and provides the necessary support and stability.
- Size and Weight: Take into account the physical dimensions and weight of the hydraulic cylinder. Ensure that it can fit within the available space and that the equipment can support its weight without compromising performance or safety.
- Speed and Precision: Evaluate the required speed and precision of the hydraulic cylinder’s movement. Different cylinder designs and configurations can affect the speed and accuracy of motion. Consider factors such as cylinder bore size, rod diameter, and the presence of cushioning or dampening features.
- Environmental Factors: Assess the operating environment of the mobile equipment. Consider factors such as temperature extremes, exposure to moisture, dust, and chemicals. Select hydraulic cylinders with appropriate seals and coatings that can withstand the environmental conditions and prevent corrosion or damage.
- Reliability and Maintenance: Consider the reliability and maintenance requirements of the hydraulic cylinders. Look for reputable manufacturers that provide high-quality products with a proven track record. Evaluate factors such as expected service life, availability of spare parts, and ease of maintenance.
- Cost: Finally, consider the cost of the hydraulic cylinders, including the initial purchase price, installation costs, and long-term maintenance expenses. While it is essential to find a cost-effective solution, prioritize quality and performance to ensure safe and efficient operation.
What safety precautions should be followed when working with hydraulic cylinders?
Working with hydraulic cylinders requires strict adherence to safety precautions to prevent accidents, injuries, and damage to equipment or property. Hydraulic systems operate under high pressures and involve moving parts, which can pose serious hazards if not handled properly. Here’s a detailed explanation of the safety precautions that should be followed when working with hydraulic cylinders:
1. Training and Knowledge:
– Ensure that personnel working with hydraulic cylinders have received adequate training and possess a thorough understanding of hydraulic system operation, maintenance, and safety protocols. Proper training should cover topics such as hydraulic principles, pressure ratings, safe work practices, and emergency procedures. Only trained and authorized personnel should be allowed to handle hydraulic cylinders.
2. Wear Personal Protective Equipment (PPE):
– Always wear appropriate personal protective equipment when working with hydraulic cylinders. This may include safety glasses, gloves, protective clothing, and steel-toed boots. PPE helps protect against potential hazards, such as hydraulic fluid leaks, flying debris, or accidental contact with moving parts.
3. Hydraulic System Inspection:
– Before working with hydraulic cylinders, inspect the entire hydraulic system for any signs of damage, leaks, or loose connections. Check hydraulic hoses, fittings, valves, and cylinders for integrity and secure fastening. If any issues are detected, the system should be repaired or serviced before operation.
4. Relieve Pressure:
– Before performing any maintenance or disassembly on a hydraulic cylinder, it is crucial to relieve the pressure in the system. Follow the manufacturer’s instructions to properly release pressure and ensure that the hydraulic cylinder is depressurized before starting any work. Failure to do so can result in sudden and uncontrolled movement of the cylinder or hydraulic lines, leading to serious injuries.
5. Lockout/Tagout Procedures:
– Implement lockout/tagout procedures to prevent accidental energization of the hydraulic system while maintenance or repair work is being conducted. Lockout/tagout involves isolating the energy source, such as shutting off the hydraulic pump and locking or tagging the controls to prevent unauthorized operation. This procedure ensures that the hydraulic cylinder remains in a safe, non-operational state during maintenance activities.
6. Use Proper Lifting Techniques:
– When working with heavy hydraulic cylinders or components, use proper lifting techniques and equipment to avoid strain or injury. Hydraulic cylinders can be heavy and awkward to handle, so ensure that lifting equipment, such as cranes or hoists, is properly rated and used correctly. Follow safe lifting practices, including securing the load and maintaining a stable lifting posture.
7. Hydraulic Fluid Handling:
– Handle hydraulic fluid with care and follow proper procedures for fluid filling, transfer, and disposal. Avoid contact with the skin or eyes, as hydraulic fluid may be hazardous. Use appropriate containers and equipment to prevent spills or leaks. If any hydraulic fluid comes into contact with the skin or eyes, rinse thoroughly with water and seek medical attention if necessary.
8. Regular Maintenance:
– Perform regular maintenance and inspections on hydraulic cylinders to ensure their safe and reliable operation. This includes checking for leaks, inspecting seals, monitoring fluid levels, and conducting periodic servicing as recommended by the manufacturer. Proper maintenance helps prevent unexpected failures and ensures the continued safe use of hydraulic cylinders.
9. Follow Manufacturer Guidelines:
– Always follow the manufacturer’s guidelines, instructions, and recommendations for the specific hydraulic cylinders and equipment being used. Manufacturers provide important safety information, maintenance schedules, and operational guidelines that should be strictly adhered to for safe and optimal performance.
10. Emergency Preparedness:
– Be prepared for potential emergencies by having appropriate safety equipment, such as fire extinguishers, first aid kits, and emergency eyewash stations, readily available. Establish clear communication channels and emergency response procedures to promptly address any accidents, leaks, or injuries that may occur during hydraulic cylinder operations.
By following these safety precautions, individuals working with hydraulic cylinders can minimize the risk of accidents, injuries, and property damage. It is essential to prioritize safety, maintain awareness of potential hazards, and ensure compliance with relevant safety regulations and industry standards.
editor by CX 2024-01-30