제품 설명
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
자주 묻는 질문
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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| 보증: | 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) | |
|---|
| 맞춤 설정: | 사용 가능 |
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유압 실린더는 중장비에서 어떻게 부드럽고 일관된 움직임을 보장합니까?
유압 실린더는 중장비의 원활하고 일관된 움직임을 보장하는 데 필수적인 역할을 합니다. 유압 실린더의 설계와 작동 방식은 무거운 하중의 움직임을 정밀하게 제어할 수 있도록 하여 효율적이고 안정적인 성능을 제공합니다. 다음은 유압 실린더가 중장비의 원활하고 일관된 움직임에 어떻게 기여하는지에 대한 자세한 설명입니다.
1. 유압유 및 압력:
유압 실린더는 유압유(일반적으로 오일)를 이용하여 힘과 운동을 전달합니다. 유압 펌프가 유압유에 압력을 가하면 실린더 내부의 피스톤에 작용하는 힘이 발생합니다. 유압유의 압력은 정밀하게 제어할 수 있어 중장비를 부드럽고 점진적으로 움직일 수 있습니다. 유압유의 비압축성 덕분에 힘이 고르게 분산되어 일관되고 예측 가능한 움직임을 구현할 수 있습니다.
2. 피스톤 및 실린더 설계:
유압 실린더는 부드러운 움직임을 보장하기 위해 정밀하게 설계되었습니다. 피스톤과 실린더 내부는 엄격한 공차로 가공되어 마찰을 줄이고 내부 누출을 최소화합니다. 피스톤과 실린더 벽 사이의 정밀한 결합은 급격한 속도 변화나 흔들림 없이 일관된 움직임을 유지하는 데 도움이 됩니다. 또한, 고품질 밀봉재와 윤활유를 사용하여 실린더의 원활한 작동을 더욱 향상시킵니다.
3. 제어 밸브 및 유량 제어:
유압 시스템에는 실린더 내부로 유입 및 유출되는 유압 유체의 흐름을 조절하는 제어 밸브가 포함되어 있습니다. 이 밸브를 통해 실린더의 움직임 속도와 방향을 정밀하게 제어할 수 있습니다. 유량 조절을 통해 작업자는 급정거를 방지하고 중장비를 부드럽고 안정적으로 작동시킬 수 있습니다. 또한 유량 제어 밸브는 속도 조절을 가능하게 하여 다양한 부하 또는 작동 조건에서도 일관된 움직임을 보장합니다.
4. 쿠션 및 감쇠:
유압 실린더에는 중장비 이동 중 발생하는 충격을 흡수하고 최소화하기 위한 완충 장치가 장착될 수 있습니다. 완충은 실린더 내부에 특수 밸브 또는 조절 가능한 오리피스를 설치하여 스트로크 끝부분에서 유압 유체의 흐름을 제한함으로써 이루어집니다. 이러한 점진적인 감속은 갑작스러운 충격이나 진동을 방지하여 부드럽고 일관된 움직임을 유지하는 동시에 기계 및 구성 요소에 가해지는 스트레스를 줄여줍니다.
5. 부하 분산:
유압 실린더는 하중 균형을 맞추고 힘을 고르게 분산시키도록 시스템을 설계하고 배열할 수 있습니다. 여러 개의 실린더를 병렬 또는 직렬로 구성하여 사용하면 중장비가 균형 잡힌 움직임을 구현하고, 불균형적인 응력을 방지하며 원활한 작동을 보장할 수 있습니다. 하중 균형은 또한 부품 고장 위험을 최소화하고 기계의 전반적인 안정성과 수명을 향상시키는 데 도움이 됩니다.
6. 피드백 및 제어 시스템:
첨단 유압 시스템은 피드백 센서와 제어 시스템을 통합하여 중장비의 움직임을 모니터링하고 조정합니다. 이 센서들은 유압 실린더의 위치, 속도 및 작동력에 대한 실시간 정보를 제공합니다. 제어 시스템은 이 데이터를 처리하고 유압 유체의 흐름을 그에 따라 조정하여 부드럽고 일관된 움직임을 유지합니다. 실린더 작동을 지속적으로 모니터링하고 조절함으로써 피드백 및 제어 시스템은 정밀하고 신뢰할 수 있는 동작 제어에 기여합니다.
7. 유지보수 및 서비스:
유압 실린더의 정기적인 유지보수 및 점검은 중장비에서 원활하고 일관된 작동을 보장하는 데 필수적입니다. 적절한 윤활, 씰 검사 및 마모된 부품 교체는 최적의 성능을 유지하는 데 도움이 됩니다. 필터 교체 및 유체 분석과 같은 예방 정비 작업 또한 유압 시스템의 수명과 신뢰성을 높여 시간이 지남에 따라 일관된 작동을 보장합니다.
요약하자면, 유압 실린더는 유압 유체와 압력, 정밀한 피스톤 및 실린더 설계, 제어 밸브 및 유량 제어, 완충 및 감쇠 메커니즘, 하중 균형, 피드백 및 제어 시스템, 그리고 정기적인 유지보수 및 서비스를 통해 중장비의 부드럽고 일관된 움직임을 보장합니다. 이러한 특징들을 활용하여 유압 실린더는 무거운 하중을 처리하는 데 필요한 힘과 제어력을 제공하는 동시에 정밀하고 안정적인 동작을 유지함으로써 다양한 산업 분야에서 중장비의 전반적인 성능과 생산성을 향상시킵니다.
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.
Can hydraulic cylinders be adapted for use in both industrial and mobile equipment?
Yes, hydraulic cylinders can be adapted for use in both industrial and mobile equipment. The versatility and adaptability of hydraulic systems make them suitable for a wide range of applications across various industries. Here’s a detailed explanation:
1. Industrial Equipment:
– Hydraulic cylinders are extensively used in industrial equipment such as manufacturing machinery, construction equipment, material handling systems, and heavy-duty machinery. They provide the necessary force and controlled movement for tasks such as lifting, pushing, pulling, and positioning heavy loads. Industrial hydraulic cylinders are typically designed for robustness, durability, and high load-bearing capacities to withstand the demanding environments and heavy-duty applications encountered in industries.
2. Mobile Equipment:
– Hydraulic cylinders are also widely adopted in mobile equipment, including agricultural machinery, mining equipment, forestry machinery, and transportation vehicles. These cylinders enable various functions such as tilting, lifting, steering, and stabilizing. Mobile hydraulic cylinders are designed to be compact, lightweight, and efficient to meet the specific requirements of mobile applications. They are often integrated into hydraulic systems that power multiple functions in a single machine.
3. Adaptability:
– One of the key advantages of hydraulic cylinders is their adaptability. They can be customized and configured to suit different operating conditions, equipment sizes, load capacities, and speed requirements. Hydraulic cylinder manufacturers offer a wide range of sizes, stroke lengths, mounting options, and rod configurations to accommodate diverse applications. This adaptability allows hydraulic cylinders to be utilized in both industrial and mobile equipment, serving various purposes across different sectors.
4. Mounting Options:
– Hydraulic cylinders can be adapted to different mounting arrangements to suit the specific requirements of industrial and mobile equipment. They can be mounted in various orientations, including vertical, horizontal, or at an angle. Different mounting options, such as flange mounts, trunnion mounts, and clevis mounts, provide flexibility in integrating hydraulic cylinders into different equipment designs.
5. Integration with Hydraulic Systems:
– Hydraulic cylinders are often part of a larger hydraulic system that includes components such as pumps, valves, hoses, and reservoirs. These systems can be tailored to meet the specific needs of both industrial and mobile equipment. The hydraulic system’s design and configuration can be adapted to provide the necessary flow rates, pressures, and control mechanisms required for optimal performance in the intended application.
6. Control and Automation:
– Hydraulic cylinders in both industrial and mobile equipment can be integrated with control systems and automation technologies. This allows for precise and automated control of the cylinder’s movement and function. Proportional control valves, sensors, and electronic controls can be incorporated to achieve accurate positioning, speed control, and synchronization of multiple hydraulic cylinders, enhancing overall equipment performance and productivity.
7. 안전 고려 사항:
– Hydraulic cylinders for both industrial and mobile equipment are designed with safety in mind. They often feature built-in safety mechanisms such as overload protection, pressure relief valves, and emergency stop systems to prevent accidents and equipment damage. Safety standards and regulations specific to each industry are taken into account during the design and adaptation of hydraulic cylinders for different applications.
Overall, hydraulic cylinders offer the adaptability and performance required for use in both industrial and mobile equipment. Their versatility, customizable features, mounting options, integration capabilities, and safety considerations make them suitable for a wide range of applications across diverse industries. Whether it’s heavy-duty industrial machinery or mobile equipment operating in challenging environments, hydraulic cylinders can be adapted to meet the specific needs and requirements of various equipment types.
editor by CX 2024-02-05