1 more than 22 years manufacture experience
2 Our own factory
4 Competitive price and high quality
4 Competitive price and high quality
5 Based on your drawing or requirement
6 rigid matching control and proper seals
7 Easy install and easy maintain
1.Raw materials entering the factory, 27SiMn, 40CrMo, ST52, 45# steel tubes or bars for choice
2.Do the pre-treatment including pickling, phosphating and saponification, and then cold-draw the seamless steel tubes.
3.Put the steel tubes into the tempering CHINAMFG to do the stress relief annealing in convenience of the subsequent the processing.
4.Multi-roll straightening machine, with 10 straightening points, achieves the automatic rolling straight improving the efficiency greatly
5.Heat treatment to obtain work pieces with different properties by changing their internal microstructure or surface chemical composition.
6.Cylindrical degree can be controlled within 0.03mm and the surface roughness is up to 0.4 by honing with range:φ40mm-φ450mm and longest length: 12000mm
7.Machining processes to obtain high precision parts with complex shapes strictly according to the detailed drawings.
8.Electroplating production process fulfills the functional and ornamental requirements for coating work pieces of different dimensions according to specific application requirements.
9.Cleaning all the parts by automatic cleaning machine in the special solution and under special temperature control effectively.
10.All the parts are assembled into complete cylinders according to the strict assembly instructions by skillful workers in dust-free workshop.
11.Do proof pressure and performance tests to check whether the cylinders can operate smoothly and stably under the specified pressure with no leakage and deformation.
12.Do the painting including high quality primer and topcoat to obtain beautiful appearance and protect the cylinders against the anticorrosion.
13.Wooden pallet or boxes packing with plastic films wrapped on the surface, suitable for long-time sea transport.
>All specification is designed by professional engineer.
>All material is high quality-Seal kits were purchased from USA, Japan, UK and Sweden.
>All material is processed by skilled workers and advanced CNC lathe
>All cylinders are 100% tested before package to ensure every cylinder is qualified for its purpose
>Package is air cushion film for each cylinder and steel case for all cylinders to ensure goods can arrive at customer safely
>One year warranty and long time track service is offered to solve any problems you meet after sale.
Guarantee and after sale service:
>7 x 24 hours technical support through email
>Goods will be delivered safely on time
>14 months guarantee after destination port arrival
>Life long time track service
Wantong Hydraulic warrants all cylinders to be free from any defects in material or workmanship under normal use and service for a period of 14 months
This warranty does not cover & WANTONG shall have no responsibility for:
1.Troubleshooting, diagnostic, removal, or reinstallation labor charges;
2.Freight charges for either defective parts or new or repaired parts unless prior written approvalis obtained from WANTONG;
3.Claims for loss of time, inconvenience, loss of use, profits or other consequential damages
4.Conditions from, alteration, accident, misuse, neglect, fire, theft, loss, intentional damage, direct,indirect, consequential, incidental, weather related, or any other type of damage resulting fromthe use of the product;
5.Corrosion unless the material is found to be out of specification;
6.Failure due to contamination introduced to the cylinder;
7.Paint unless out of specification;
(1)After customers giving a feedback on product quality problems through the network or telephone, CHINAMFG companies will reply within 24 hours
(2)We make every effort to make a diagnosis within 3-5 days or communicate with customers to do a detailed program.
(3)Wantong technology and quality departments have the responsibility to confirm the customer's question, for troubleshooting.
While customers would better provide as much as possible the product use of operating conditions, product damage photos, video, etc., to accurately determine the product problem and prevent similar problems in the future.
Accessories occur problems at warranty period:
(1) If the customer is anxious, then we can provide free of charge within 5-20 working days [NOTE: According to the parts model, whether have inventory or purchase cycle], air freight should be beard by the customer.
(2) If the customer is not anxious, it is recommended that sending the part to him in the next batch of orders, free of charge.
Hydraulic cylinder problems occur at warranty period:
(1) New cylinder replace;
(2) price discount in the next order;
(3) the "repair fee" pay: repair fee required to within a reasonable range: the cost of CHINAMFG repair problem hydraulic cylinder < repair fee < the cost of production of a new hydraulic cylinder;
(4) for strategic customers, 1 to 1 special treatment.
Founded in 1995, with registration capital of 60 million RMB, ZheJiang CHINAMFG Hydraulic Co., Ltd is specialized in hydraulic products design,R&D and manufacturing.
We mainly produce Hydraulic Cylinder including Vehicle Hydraulic Cylinder, Coal Mining Hydraulic Cylinder, Engineering Hydraulic Cylinder ,Oil field cylinder and CHINAMFG Engineering Hydraulic Cylinder.Also we can design and manufacture various special purpose hydraulic cylinders such as agriculture hydraulic cylinder,industry hydraulic cylinder, 6 DOF platform, machine tools, etc.
We have more than 120 kinds of hydraulic cylinder , our annual capacity is 200 thousand sets of cylinders which makes our company an important production base for hydraulic cylinders.
Our company covers an area of 180 thousand square CHINAMFG (193 thousand square feet),and has more than 500 employees.We have CHINAMFG and advanced production equipments including cold drawing line, heat treatment line, surface treatment line, testing machines and various CNC machines, totally 700 sets of machines.
All production steps are finished in same factory which guarantees good quality and short lead time. All the products have passed validation of ISO/TS16949, CCRI, CCS, and DNV AND ABS,API,etc.
>Professional manufacturer& supplier of Hydraulic Cylinders for more than 22 years;
>Hydraulic Cylinders Certification ISO9001:2008, SGS, TS16949, RoHS, CNAS Certification;
>Experience in export North America, Australia, Asia, Middle East, Africa;
>Hydraulic Cylinders can be Make according to client's requirements;
>The Hydraulic Cylinders can be used for Dump Truck, Tipper Truck, Trailer, Agricultural Machinery, Engineering Machinery, Garbage Truck, Landing Platform etc;
>We are the supplier of Sinotruk, CNHTC, CIMC, Wuzheng, Beiben Truck, Baic Group, FOTON, HOWO, JAC, ZheJiang Hyundai, Xihu (West Lake) Dis.n, ZheJiang Automobile, most of famous truck manufacturing and refitting company use our telescopic cylinder as first choice
1 We have an excellent R&D team, they can use advanced design software to make our products make them more precise by accurate measurement
2 To ensure every cylinder qualified, we have built our large size CNC hydraulic testing platform
3 Our quality team will test and record each quality and function requirement to guarantee the products we supply to our customers are the best.
4 22 years experience in manufacture hydarulic cylinder
5 Passed ISO/TS16949
6 Factory direct sale,reasonable get high quality product.
Q1: Are you a manufacture or a trade company?
A:Manufacture, we are the leader manufacturer of hydraulic industry in China with 20 years' experience and technologyaccumulation.With strong technical team we could solve any annoyance of you.
Q2: Do you have quality control system?
A:Yes, The quality management system introduced is: ISO/TS 16949:2009-certifiedby NQA and IATF cert.
Q3: How can i get a booklet and buy a cylinder from you?
A: Very easy! Just leave me a message or email or call me directly, let me know you are interesting in our products.I will talk with you for the details soon!
Q4: Can you tell me the price for the cylinder?
1. Please advice the drawing with technical requirement.
2. Please advice the model No. after you check our booklet.
3. Please advice the tipping capacity, number of stages, closed length, mounting type and size.
4. Please also help advice the quantities, this is very important.
Q5: Do your products come with a warranty?
A: Yes, we have 1 year warranty. In this year, if the quality problem we will free repair for you.
Q6: Hydraulic cylinder internal leakage?
A: 3 main reasons causing internal leakage: Overload, polishing bad controlled, cheap seal kits. As is known to all, vehicles in China are often overloaded, our products all designed to bear the overload power. Advanced equipment could assure the polish processing. And we use the imported/TOP brand seals to meet customers' requirement.
Q7: What about the quality feedback of your products?
A: We have never received even once quality complaint for many years of international business.
Q8: Can you help me to install or recommend what kind of hydrauliccylinder or power pack should I use for specific machine?
Answer: Yes, we have 25 experienced engineers who are always ready to help you. If you do not know what kind of hydraulic cylinders should be used in your machine, please just contact us, our engineers will design the exact products match your need.
Q9:What is the delivery time?
Answer: Within 20 days for samples.
15-30 days for bulk production, which is depend on quality, production process and so on.
Q10: What is your main payment term?
Answer: T/T, L/C,D/A, D/P either is available.
Q11: What's the MOQ?
Answer: The MOQ is 1 piece.
|Lifting,Paushing and Falling
How do hydraulic cylinders ensure smooth and consistent movement in heavy machinery?
Hydraulic cylinders play a vital role in ensuring smooth and consistent movement in heavy machinery. Their design and operation allow for precise control over the motion of heavy loads, resulting in efficient and reliable performance. Here's a detailed explanation of how hydraulic cylinders contribute to smooth and consistent movement in heavy machinery:
1. Hydraulic Fluid and Pressure:
- Hydraulic cylinders operate by utilizing hydraulic fluid, typically oil, to transmit force and motion. The fluid is pressurized by a hydraulic pump, creating a force that acts on the piston inside the cylinder. The pressure of the hydraulic fluid can be precisely controlled, allowing for smooth and gradual movement of heavy machinery. The fluid's incompressibility ensures that the force is evenly distributed, resulting in consistent and predictable motion.
2. Piston and Cylinder Design:
- Hydraulic cylinders are designed with precision to ensure smooth movement. The piston and cylinder bore are machined to tight tolerances, reducing friction and minimizing internal leakage. This precise fit between the piston and cylinder walls helps maintain consistent motion without jerks or sudden changes in speed. Additionally, the use of high-quality seals and lubrication further enhances the smooth operation of the cylinder.
3. Control Valves and Flow Control:
- Hydraulic systems incorporate control valves that regulate the flow of hydraulic fluid into and out of the cylinder. These valves allow for precise control over the speed and direction of the cylinder's movement. By adjusting the flow rate, operators can achieve smooth and controlled motion of heavy machinery, avoiding sudden starts or stops. Flow control valves also enable speed adjustment, ensuring consistent movement even under varying loads or operating conditions.
4. Cushioning and Damping:
- Hydraulic cylinders can be equipped with cushioning mechanisms to absorb shock and minimize impacts during the movement of heavy machinery. Cushioning is achieved by incorporating specialized valves or adjustable orifices in the cylinder, which restrict the flow of hydraulic fluid near the end of the stroke. This gradual deceleration helps prevent sudden jolts or vibrations, maintaining smooth and consistent movement while reducing stress on the machinery and its components.
5. Load Balancing:
- Hydraulic cylinders can be designed and arranged in a system to balance the load and distribute forces evenly. By utilizing multiple cylinders in parallel or series configurations, heavy machinery can achieve balanced movement, preventing uneven stress and ensuring smooth operation. Load balancing also helps minimize the risk of component failure and enhances the overall stability and longevity of the machinery.
6. Feedback and Control Systems:
- Advanced hydraulic systems incorporate feedback sensors and control systems to monitor and adjust the movement of heavy machinery. These sensors provide real-time information about the position, speed, and force exerted by the hydraulic cylinders. The control system processes this data and adjusts the flow of hydraulic fluid accordingly to maintain smooth and consistent movement. By continuously monitoring and regulating the cylinder's operation, feedback and control systems contribute to precise and reliable motion control.
7. Maintenance and Servicing:
- Regular maintenance and servicing of hydraulic cylinders are essential to ensure their smooth and consistent movement in heavy machinery. Proper lubrication, inspection of seals, and replacement of worn-out components help maintain optimal performance. Preventive maintenance practices, such as filter replacements and fluid analysis, also contribute to the longevity and reliability of hydraulic systems, ensuring consistent movement over time.
In summary, hydraulic cylinders ensure smooth and consistent movement in heavy machinery through the use of hydraulic fluid and pressure, precise piston and cylinder design, control valves and flow control, cushioning and damping mechanisms, load balancing, feedback and control systems, and regular maintenance and servicing. By leveraging these features, hydraulic cylinders provide the necessary force and control to handle heavy loads while maintaining precise and reliable motion, enhancing the overall performance and productivity of heavy machinery in various industrial applications.
Handling Challenges of Different Fluid Viscosities in Hydraulic Cylinders
Hydraulic cylinders are designed to handle the challenges associated with different fluid viscosities. The viscosity of hydraulic fluid can vary based on temperature, type of fluid used, and other factors. Hydraulic systems need to accommodate these variations to ensure optimal performance and efficiency. Let's explore how hydraulic cylinders handle the challenges of different fluid viscosities:
- Fluid Selection: Hydraulic cylinders are designed to work with a range of hydraulic fluids, each with its specific viscosity characteristics. The selection of an appropriate fluid with the desired viscosity is crucial to ensure optimal performance. Manufacturers provide guidelines regarding the recommended viscosity range for specific hydraulic systems and cylinders. By choosing the right fluid, hydraulic cylinders can effectively handle the challenges posed by different fluid viscosities.
- Viscosity Compensation: Hydraulic systems often incorporate features to compensate for variations in fluid viscosity. For example, some hydraulic systems utilize pressure compensating valves that adjust the flow rate based on the viscosity of the fluid. This compensation ensures consistent performance across different operating conditions and fluid viscosities. Hydraulic cylinders work in conjunction with these compensation mechanisms to maintain precision and control, regardless of the fluid viscosity.
- Temperature Control: Fluid viscosity is highly dependent on temperature. Hydraulic cylinders employ various temperature control mechanisms to address the challenges posed by temperature-induced viscosity changes. Heat exchangers, coolers, and thermostatic valves are commonly used to regulate the temperature of the hydraulic fluid within the system. By controlling the fluid temperature, hydraulic cylinders can maintain the desired viscosity range, ensuring reliable and efficient operation.
- Efficient Filtration: Contaminants in hydraulic fluid can affect its viscosity and overall performance. Hydraulic systems incorporate efficient filtration systems to remove particles and impurities from the fluid. Clean fluid with the appropriate viscosity ensures optimal functioning of hydraulic cylinders. Regular maintenance and filter replacements are essential to uphold the desired fluid viscosity and prevent issues related to fluid contamination.
- Proper Lubrication: Different fluid viscosities can impact the lubrication properties within hydraulic cylinders. Lubrication is essential for minimizing friction and wear between moving parts. Hydraulic systems employ lubricants specifically formulated for the anticipated fluid viscosity range. Adequate lubrication ensures smooth operation and extends the lifespan of hydraulic cylinders, even in the presence of varying fluid viscosities.
In summary, hydraulic cylinders employ various strategies to handle the challenges associated with different fluid viscosities. By selecting appropriate fluids, incorporating viscosity compensation mechanisms, controlling temperature, implementing efficient filtration, and ensuring proper lubrication, hydraulic cylinders can accommodate variations in fluid viscosity. These measures enable hydraulic systems to deliver consistent performance, precise control, and efficient operation across different fluid viscosity ranges.
Can you explain the role and significance of hydraulic cylinders in machinery?
Hydraulic cylinders play a crucial role in machinery across various industries. They are essential components that provide controlled and powerful linear motion, enabling the operation of heavy equipment and facilitating numerous tasks. The role and significance of hydraulic cylinders in machinery can be explained in detail as follows:
Role of Hydraulic Cylinders:
- Conversion of Hydraulic Energy: Hydraulic cylinders convert hydraulic energy, typically in the form of pressurized hydraulic fluid, into linear force and motion. This conversion allows machinery to perform tasks such as lifting, pushing, pulling, clamping, tilting, and controlling various mechanisms.
- Generation of Linear Motion: Hydraulic cylinders generate linear motion by utilizing the principles of Pascal's law. When hydraulic fluid is directed into one side of the cylinder, it applies pressure on the piston, resulting in linear movement of the piston and the attached piston rod. This linear motion can be used to actuate other components within the machinery or directly perform the required task.
- Force Generation: Hydraulic cylinders are capable of generating high forces due to the hydraulic pressure applied to the piston. The force output of a hydraulic cylinder depends on the surface area of the piston and the pressure of the hydraulic fluid. This force allows machinery to exert significant power for lifting heavy loads, applying pressure, or overcoming resistance.
- Precise Control: Hydraulic cylinders offer precise control over the linear motion and force exerted. By regulating the flow of hydraulic fluid, the speed and direction of the cylinder's movement can be accurately adjusted. This level of control is crucial in machinery that requires precise positioning, delicate movements, or synchronization of multiple cylinders.
- Integration with Hydraulic Systems: Hydraulic cylinders are integral parts of hydraulic systems used in machinery. They work in conjunction with hydraulic pumps, valves, and actuators to create a complete hydraulic circuit. This integration allows for efficient power transmission, control, and coordination of various machine functions.
Significance of Hydraulic Cylinders:
- Heavy Equipment Operation: Hydraulic cylinders are vital in heavy machinery used in construction, mining, agriculture, material handling, and other industries. They enable the lifting and movement of heavy loads, the operation of attachments, and the performance of tasks that require high force and precision.
- Versatility and Adaptability: Hydraulic cylinders are versatile components that can be designed and tailored to meet specific machinery requirements. They can be integrated into various types of equipment and customized based on factors such as force capacity, stroke length, speed, and mounting options. This adaptability makes hydraulic cylinders suitable for diverse applications.
- Durability and Reliability: Hydraulic cylinders are built to withstand rigorous operating conditions, including high pressures, heavy loads, and continuous use. They are designed with robust materials, precise machining, and effective sealing systems to ensure durability and reliability over extended periods of operation.
- Safety and Load Control: Hydraulic cylinders provide safe and controlled operation in machinery. They offer overload protection mechanisms, such as relief valves, to prevent damage caused by excessive force or pressure. Additionally, hydraulic cylinders allow for precise load control, minimizing the risk of accidents during lifting, lowering, or positioning of heavy loads.
- Compact Design: Hydraulic cylinders offer a high power-to-size ratio, allowing for compact machinery design. Their relatively small size compared to the forces they can generate makes them suitable for applications where space is limited or weight restrictions apply.
- Energy Efficiency: Hydraulic cylinders contribute to energy efficiency in machinery. The use of hydraulic systems allows for the transfer of power over long distances without significant power losses. Additionally, hydraulic cylinders can incorporate energy-saving features such as load-sensing technology and regenerative circuits, reducing energy consumption.
Overall, hydraulic cylinders play a vital role in machinery by providing controlled and powerful linear motion. Their significance lies in their ability to convert hydraulic energy, generate high forces, offer precise control, integrate with hydraulic systems, and facilitate the operation of heavy equipment across various industries. Hydraulic cylinders contribute to increased productivity, safety, and efficiency in machinery applications, making them indispensable components in modern-day engineering.
editor by CX 2023-10-30