제품 설명
제품 설명
Product Application
CHINAMFG company design and manufacture hydraulic cylinders for different applications:
1.Construction machinery
2.Mining machinery
3.Hydraulic press, including Forging press, Die casting machine, Injection Molding Machine, etc.
4.Extrusion press
5.Metallurgical machinery, like Rolling Mill Servo
6.Hoisting machinery, including marine jib crane,marine crane,hydraulic knuckle boom marine crane,etc.
7.Excavating machinery, used in telescopic boms, knuckle booms, fixed double taper booms,etc.
8.Petroleum drilling machinery
9.Hydraulic lifting platform
10.Marine equipment
11.Hydro power project
Design
Not only we could manufacture all kinds of heavy duty hydraulic cylinder on hydraulic press according to the drawing from customers,but also we could make a design according to customers’requirements. If you require our engineer to make a design, please advise us thefollowing specification :
1. Rated pressure
2. Working pressure
3. Test pressure
4. Working condition and environment ,for example ,temperature ,working frequency
5. Pulling force ,and return stroke force
6. Pulling and return speed
7. Assembly size
8. Seal ring requirements .For example , brand ,seal material etc .
9. Tube and piston rod raw material requirements
10. Piston rod surface treatment requirements, for example chromating film thickness , Surface hardness etc .
11. Painting and other spare parts requirements .
Manufacturing capability and cylinder size range
Max bore diameter: Ø1200mm
Max stroke: 12Meter
Max text pressure: 50MPa
Detailed Images
1.Cylinder tube
According to the cylinder pressure and inside diameter size, different steel tube Would be choosed.
ID ≤300mm, choose cold rolled precision seamless tube
300mm≤ID ≤500mm, choose hot rolled seamless tube
500mm≤ID ≤1000mm, choose forged tube
Steel grade : SAE1571, SAE1045, 27SiMn , S355JR, S355J2G3, St52-3, SUS304, SUS316L etc .
Inside boring and honing , roughness R0.2-R0.3
Inside chromating : if necessary ,tube inside chromating could be applied
2Piston rod
steel grade : SAE1045, 42CrMo4, SUS410 ,SUS420, SUS304, SUS316L
Eternal company ensure that every piece piston rod would be surface hardened before chromating, surface hardness is HRC55~60 , Chromating film thickness is 0.03~0.04mm if there is no other specific requirements.
3.Seal ring and O ring
According to the customers’ requirements and working condition, CHINAMFG company would choose suitable
seal ring kit, seal ring brand include: Parker, Merkel, NOK, HangZhou Rubber institute, ZheJiang brand etc. CHINAMFG company would supply suitable seal solution for their customer so that hydraulic cylinder has more lifetime, easy maintenance and simple repairing.
4.Tube and flange welding
The welding on cylinder tube and flange would be Ultrasonic tested every time, the welding seam would be
cleaned before machining. CHINAMFG company ensure that every welding seam has no any leak during lifetime.
5.Assembly and pressure test
Before hydraulic cylinder is assemblied, every spare parts would be measured and cleaned. After hydraulic cylinder is assemblied, pressure test would be carried out 1 By one, CHINAMFG company ensure that testingpressure is higher 30%-50% than working pressure, and pressure holding time 30~60 minutes is necessary. Every piece hydraulic cylinder must be tested completely without any leak.
Packing & Delivery
Our Company
Company Profile
HangZhou CHINAMFG Heavy Industry Co., Ltd was established in 22, Apr. 2008. Our products mainly including: hydraulic baler, hydraulic shear, hydraulic cylinder and metallurgical Equipment. We could manufacture all kinds of hydraulic baler and hydraulic shear, pressure up to 1000 tons, and our machines have been exported to many countries.
Our hydraulic cylinders are widely used in construction machinery, mining machinery, hydro power project, offshore drilling platform, steel plant equipment, marine machinery, hydraulic lifting system, metallurgical equipment, forging equipment etc. Max cylinder bore size reach 1,000 mm, max cylinder stroke reach 12 meter, max test pressure could reach 50Mpa. Our cylinder has passed through BV certification.
We could also manufacture all kinds of metal extrusion press, pipe upsetting machine, including all kinds of steel plant spare parts.
Our factory has 15,000 square CHINAMFG and have heavy duty workshop with area 8,000 square meters. There is double layer crane in the work shop. The lifting height could reach 16 meter while lifting capacity could reach 75 tons.
Our company passed the ISO9001: 2015, ISO14001: 2015, OHSAS18001: 2007, BV marine certification, API certification etc. Till now, our products have been exported to nearly 50 countries and own good reputation from our customers. You are welcome to visit our company.
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| 인증: | CE |
|---|---|
| 압력: | 중압력 |
| 작동 온도: | Low Temperature |
| 연기 방식: | Single Acting |
| 작업 방식: | Straight Trip |
| 수정된 형태: | Regulated Type |
| 맞춤 설정: | 사용 가능 |
|
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유압 실린더는 정밀한 위치 지정 및 제어라는 과제를 어떻게 해결할까요?
유압 실린더는 엔지니어링 원리와 첨단 제어 시스템의 조합을 통해 정밀한 위치 지정 및 제어라는 과제를 해결하도록 설계되었습니다. 이러한 과제는 산업 자동화, 건설, 자재 운반과 같이 정확하고 제어된 움직임이 요구되는 분야에서 자주 발생합니다. 유압 실린더가 이러한 과제를 어떻게 극복하는지 자세히 살펴보겠습니다.
1. 유압 제어:
유압 실린더는 유체 동력 제어 방식을 이용하여 정밀한 위치 제어 및 조작을 가능하게 합니다. 유압 시스템은 유압 펌프, 제어 밸브 및 유압유로 구성됩니다. 유압유의 유입 및 유출량을 조절함으로써 작업자는 실린더의 속도, 방향 및 힘을 제어할 수 있습니다. 유체 동력 제어는 부드럽고 정확한 움직임을 제공하여 유압 실린더와 연결된 하중을 정밀하게 위치시킬 수 있도록 합니다.
2. 제어 밸브:
제어 밸브는 정밀한 위치 제어 및 조작에 있어 매우 중요한 역할을 합니다. 이 밸브는 시스템 내 유압 유체의 흐름을 조절하는 역할을 하며, 수동 또는 전자식으로 작동할 수 있습니다. 제어 밸브를 통해 작업자는 유압 유체의 유량을 조절하여 실린더의 이동 속도를 제어할 수 있습니다. 유량을 조절함으로써 유압 실린더의 위치를 정밀하게 제어하여 정확하고 정밀한 움직임을 구현할 수 있습니다.
3. 비례 제어:
유압 실린더에는 위치 및 제어 정밀도를 향상시키는 비례 제어 시스템을 장착할 수 있습니다. 비례 제어 시스템은 전자 피드백과 제어 알고리즘을 사용하여 유압 유체의 유량과 압력을 정밀하게 조절합니다. 이러한 시스템은 유압 실린더의 움직임을 정확하고 비례적으로 제어하여 스트로크 길이 전체에 걸쳐 다양한 지점에서 정밀한 위치 제어를 가능하게 합니다. 비례 제어는 정밀한 움직임과 제어가 요구되는 복잡한 작업을 처리하는 실린더의 능력을 향상시킵니다.
4. 위치 피드백 센서:
정밀한 위치 제어를 위해 유압 실린더에는 위치 피드백 센서가 흔히 사용됩니다. 이 센서는 실린더 피스톤 로드의 위치에 대한 실시간 정보를 제공합니다. 일반적인 위치 피드백 센서로는 전위차계, 선형 가변 차동 변환기(LVDT), 자기변형 센서 등이 있습니다. 피드백 센서는 위치를 지속적으로 모니터링하여 폐루프 제어를 가능하게 하고, 유압 실린더의 정확한 위치 제어 및 조작을 지원합니다. 피드백 정보는 유압 유체의 유량을 조절하여 원하는 위치를 정확하게 구현하는 데 사용됩니다.
5. 서보 제어 시스템:
첨단 유압 시스템은 정밀한 위치 제어 및 조작의 어려움을 해결하기 위해 서보 제어 시스템을 사용합니다. 서보 제어 시스템은 전자 제어, 위치 피드백 센서 및 비례 제어 밸브를 결합하여 높은 수준의 정확성과 응답성을 구현합니다. 서보 제어 시스템은 유압 실린더의 목표 위치와 실제 위치를 지속적으로 비교하고 유압 유체의 유량을 조절하여 위치 오차를 최소화합니다. 이러한 폐루프 제어 메커니즘을 통해 유압 실린더는 부하 변화나 외부 교란 상황에서도 정밀한 위치 제어 및 조작을 유지할 수 있습니다.
6. 통합 자동화:
유압 실린더는 정밀한 위치 제어 및 조작을 위해 자동화 시스템에 통합될 수 있습니다. 이러한 시스템에서 유압 실린더는 프로그래밍 가능 로직 컨트롤러(PLC) 또는 기타 자동화 컨트롤러에 의해 제어됩니다. 이 컨트롤러들은 다양한 센서로부터 입력 신호를 받아 미리 프로그래밍된 로직을 사용하여 유압 실린더의 움직임을 제어합니다. 유압 실린더를 자동화 시스템에 통합하면 정밀하고 반복 가능한 위치 제어 및 조작이 가능해져 복잡한 동작 시퀀스를 높은 정확도로 실행할 수 있습니다.
7. 고급 제어 알고리즘:
제어 알고리즘의 발전은 유압 실린더의 정밀한 위치 제어 및 제어에 크게 기여했습니다. PID(비례-적분-미분) 제어, 적응 제어, 모델 기반 제어와 같은 알고리즘은 정교한 제어 전략을 구현할 수 있도록 해줍니다. 이러한 알고리즘은 부하 변동, 시스템 동역학, 환경 조건과 같은 요소를 고려하여 유압 실린더의 제어를 최적화합니다. 고급 제어 알고리즘을 활용함으로써 유압 실린더는 다양한 작동 조건에서 외란을 보상하고 정밀한 위치 제어 및 제어를 달성할 수 있습니다.
요약하자면, 유압 실린더는 유체 동력 제어, 제어 밸브, 비례 제어, 위치 피드백 센서, 서보 제어 시스템, 통합 자동화 및 고급 제어 알고리즘을 활용하여 정밀한 위치 제어 및 정밀 제어의 어려움을 극복합니다. 이러한 요소들을 결합함으로써 유압 실린더는 정확하고 제어된 움직임을 구현하여 다양한 응용 분야에서 정밀한 위치 제어 및 정밀 제어를 가능하게 합니다. 이러한 기능은 산업 자동화, 로봇 공학 및 자재 취급과 같이 높은 정밀도와 반복성이 요구되는 산업 분야에 필수적입니다.
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.
What are the common signs of wear or leakage that indicate hydraulic cylinder issues?
Hydraulic cylinders are critical components in hydraulic systems, and wear or leakage can lead to performance issues and potential system failures. It is important to be aware of the common signs that indicate hydraulic cylinder problems. Here’s a detailed explanation of the common signs of wear or leakage that indicate hydraulic cylinder issues:
1. Fluid Leakage:
– Fluid leakage is one of the most obvious signs of hydraulic cylinder problems. If you notice hydraulic fluid leaking from the cylinder, it indicates a seal failure or damage to the cylinder. Leaking fluid may be visible around the rod, piston, or cylinder body. It is important to address fluid leakage promptly as it can lead to a loss of system efficiency, contamination of the surrounding environment, and potential damage to other system components.
2. Reduced Performance:
– Wear or internal damage to the hydraulic cylinder can result in reduced performance. You may notice a decrease in the cylinder’s force output, slower operation, or difficulty in extending or retracting the cylinder. Reduced performance can be indicative of worn seals, damaged piston or rod, internal leakage, or contamination within the cylinder. Any noticeable decrease in the cylinder’s performance should be inspected and addressed to prevent further damage or system inefficiencies.
3. Abnormal Noise or Vibrations:
– Unusual noise or vibrations during the operation of a hydraulic cylinder can indicate internal wear or damage. Excessive noise, knocking sounds, or vibrations that are not typical for the system may suggest problems such as worn bearings, misalignment, or loose internal components. These signs should be investigated to identify the source of the issue and take appropriate corrective measures.
4. Excessive Heat:
– Overheating of the hydraulic cylinder is another sign of potential issues. If the cylinder feels excessively hot to the touch during normal operation, it may indicate problems such as internal leakage, fluid contamination, or inadequate lubrication. Excessive heat can lead to accelerated wear, reduced efficiency, and overall system malfunctions. Monitoring the temperature of the hydraulic cylinder is important to detect and address potential problems.
5. External Damage:
– Physical damage to the hydraulic cylinder, such as dents, scratches, or bent rods, can contribute to wear and leakage issues. External damage can compromise the integrity of the cylinder, leading to fluid leakage, misalignment, or inefficient operation. Regular inspection of the cylinder’s external condition is essential to identify any visible signs of damage and take appropriate actions.
6. Seal Failure:
– Hydraulic cylinder seals are critical components that prevent fluid leakage and maintain system integrity. Signs of seal failure include fluid leakage, reduced performance, and increased friction during cylinder operation. Damaged or worn seals should be replaced promptly to prevent further deterioration of the cylinder’s performance and potential damage to other system components.
7. Contamination:
– Contamination within the hydraulic cylinder can cause wear, damage to seals, and overall system inefficiencies. Signs of contamination include the presence of foreign particles, debris, or sludge in the hydraulic fluid or visible damage to seals and other internal components. Regular fluid analysis and maintenance practices should be implemented to prevent contamination and address any signs of contamination promptly.
8. Irregular Seal Wear:
– Hydraulic cylinder seals can wear over time due to friction, pressure, and operating conditions. Irregular seal wear patterns, such as uneven wear or excessive wear in specific areas, may indicate misalignment or improper installation. Monitoring the condition of the seals during regular maintenance can help identify potential issues and prevent premature seal failure.
It is important to address these common signs of wear or leakage promptly to prevent further damage, ensure the optimal performance of hydraulic cylinders, and maintain the overall efficiency and reliability of the hydraulic system. Regular inspection, maintenance, and timely repairs or replacements of damaged components are key to mitigating hydraulic cylinder issues and maximizing system longevity.
editor by CX 2023-12-29