Product Description
Our product:
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| Cylinder Tube O.D. | 112-290mm |
| Operating Pressure | 16Mpa-20Mpa |
| Numbers of Stage | 3, 4, 5, 6 |
| Largest Moving Stage Diameter  | 110mm–214mm |
| Stroke  | 3880mm–6350mm |
| Closed Length  | 1240mm-1732mm |
| Extended Length  | 5120mm-8082mm |
| Plunger Mount Thickness  | 42-50mm |
| Warranty Period  | 14 months after date of production |
| Mounting Hole | 50mm |
| Block Width | 201mm-270mm |
 Product Advantages:Â
1 more than 22 years manufacture experience
2 Our own factory
3 ISO9001-2008
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
Product Process
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.
Quality Control:
>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
>14 months 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
After-sales service
Warranty period:
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
Exclusion clause:
This warranty does not cover &Â 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;
diagnostic:
(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.
Our Company
Our Slogan:
“Pursue zero defect of our products, and realize zero customers’ complains”
Company introduction:
    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, 6Â 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
Company advantage:
1 We have an excellent R&D team, they can use advanced design software to make our products  make them     more precise by accurate measurementÂ
2Â 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.Â
4Â 22 years experience in manufacture hydarulic cylinderÂ
5Â Passed ISO/TS16949Â
6 Factory direct sale,reasonable get high quality product.
Our customer
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Ceritificated&Trade Fair
Packing:
FAQ:
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Q1: Are you a manufacture or a trade company?
A:Manufacture, we are the leader manufacturer of hydraulic industry in China with 22 year’s experience and technologyaccumulation.With strong technical team we could solve any annoyance of you.
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Q2:Â Do you have quality control system?
A:Yes, The quality management system introduced is: ISO/TS 16949:2009-certifiedby NQA and IATF cert.
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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!
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Q4:Â Can you tell me the price for the cylinder?
A:
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.              Â
4. Please also help advice the quantities, this is very important.
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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.
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Q6: Hydraulic cylinder internal leakage?
A: 3Â 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.
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Q7: What about the quality feedback of your products?
A: We have never received even once quality complaint for many years of international business.
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Q8: Can you help me to install or recommend what kind of hydrauliccylinder or power pack should IÂ 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.
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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.
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Q10: What is your main payment term?
 Answer: T/T, L/C,D/A, D/P either is available.
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Q11: What’s the MOQ?
Answer: The MOQ is 1Â piece.
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| Certification: | CE, ISO9001 |
|---|---|
| Pressure: | 16-20MPa |
| Work Temperature: | -30-+100 Degree Celsius |
| Acting Way: | Single Acting |
| Working Method: | Straight Trip |
| Rated Pressure: | 16-20MPa |
| Customization: |
Available
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How do hydraulic cylinders handle variations in temperature and harsh operating environments?
Hydraulic cylinders are designed to handle variations in temperature and harsh operating environments by incorporating specific features and materials that ensure their durability, reliability, and performance. The ability of hydraulic cylinders to withstand extreme temperatures, corrosive environments, and other harsh conditions is crucial for their successful operation in a wide range of applications. Here’s a detailed explanation of how hydraulic cylinders handle variations in temperature and harsh operating environments:
1. Temperature Range:
– Hydraulic cylinders are designed to operate within a specified temperature range. The materials used in their construction, such as cylinder barrels, pistons, seals, and lubricants, are selected to withstand the anticipated temperature variations. Specialized seals and O-rings made from materials like nitrile, Viton, or polyurethane are used to maintain their sealing properties over a wide temperature range. Heat-resistant coatings or thermal insulation may be applied to certain components to protect them from high temperatures.
2. Thermal Expansion:
– Hydraulic cylinders are designed to accommodate thermal expansion and contraction that occurs with temperature changes. The materials used in their construction have different coefficients of thermal expansion, allowing the cylinder components to expand or contract at a similar rate. This design consideration prevents excessive stress, binding, or leakage that could result from thermal expansion or contraction.
3. Heat Dissipation:
– In applications where hydraulic cylinders are subjected to high temperatures, heat dissipation mechanisms are employed to prevent overheating. Cooling fins or heat sinks may be incorporated into the cylinder design to increase the surface area for heat transfer. In some cases, external cooling methods such as air or liquid cooling systems can be used to maintain optimal operating temperatures.
4. Corrosion Resistance:
– Hydraulic cylinders used in harsh operating environments are constructed from materials that exhibit excellent corrosion resistance. Stainless steel, chrome-plated steel, or other corrosion-resistant alloys are commonly used for cylinder components exposed to corrosive substances or environments. Additionally, surface treatments such as coatings, plating, or specialized paints can provide an extra layer of protection against corrosion.
5. Sealing Systems:
– Hydraulic cylinders employ sealing systems that are specifically designed to withstand harsh operating environments. The seals used in hydraulic cylinders are selected based on their resistance to temperature extremes, chemicals, abrasion, and other environmental factors. Specialized seal designs, such as wiper seals, rod seals, or high-temperature seals, are utilized to maintain effective sealing and prevent contamination of the hydraulic fluid.
6. Lubrication:
– Proper lubrication is essential for the smooth operation and longevity of hydraulic cylinders, particularly in harsh operating environments. Lubricants are selected based on their ability to withstand high temperatures, resist oxidation, and provide effective lubrication under extreme conditions. Regular maintenance and lubrication practices ensure that the cylinder components continue to operate smoothly and reduce the effects of wear and friction.
7. Robust Construction:
– Hydraulic cylinders designed for harsh operating environments are built with robust construction techniques to withstand the rigors of such conditions. The cylinder barrels, rods, and other components are manufactured to meet strict quality and durability standards. Welded or bolted construction methods are employed to ensure the structural integrity of the cylinders. Reinforcements, such as flanges or tie rods, may be added to enhance the cylinder’s strength and resistance to external forces.
8. Environmental Protection:
– Hydraulic cylinders can be equipped with additional protective features to shield them from harsh operating environments. Protective covers, boots, or bellows can be used to prevent contaminants, debris, or moisture from entering the cylinder and compromising its performance. These protective measures help extend the service life of hydraulic cylinders in demanding conditions.
9. Compliance with Standards:
– Hydraulic cylinders manufactured for specific industries or applications often comply with industry standards or regulations related to operating temperature ranges, environmental conditions, or safety requirements. Compliance with these standards ensures that hydraulic cylinders are designed and tested to meet the specific demands of their intended operating environments.
In summary, hydraulic cylinders are designed to handle variations in temperature and harsh operating environments by incorporating suitable materials, thermal expansion considerations, heat dissipation mechanisms, corrosion-resistant components, specialized sealing systems, proper lubrication, robust construction techniques, protective features, and compliance with industry standards. These design considerations and features enable hydraulic cylinders to operate reliably and effectively in a wide range of demanding applications and environmental conditions.

Contribution of Hydraulic Cylinders to the Efficiency of Agricultural Tasks like Plowing
Hydraulic cylinders play a significant role in enhancing the efficiency of agricultural tasks, including plowing. By providing power, control, and versatility, hydraulic cylinders enable agricultural machinery to perform tasks more effectively and with greater precision. Let’s explore how hydraulic cylinders contribute to the efficiency of plowing and other agricultural tasks:
- Powerful Force Generation: Hydraulic cylinders are capable of generating high forces, making them ideal for tasks that require substantial power, such as plowing. The hydraulic system provides pressurized fluid to the cylinders, which convert this hydraulic energy into mechanical force. This force is then utilized to drive plow blades through the soil, overcoming resistance and facilitating efficient soil penetration.
- Adjustable Working Depth: Hydraulic cylinders allow for easy and precise adjustment of plow working depth. By controlling the extension or retraction of the hydraulic cylinder, the depth of the plow blades can be adjusted according to soil conditions, crop requirements, or the farmer’s preferences. This adjustability enhances efficiency by ensuring optimal soil tillage and minimizing unnecessary energy expenditure.
- Responsive Control: Hydraulic systems offer highly responsive control, enabling farmers to make quick adjustments during plowing operations. Hydraulic cylinders respond rapidly to changes in hydraulic pressure and valve settings, allowing for immediate modifications in the plow’s position, depth, or angle. This responsiveness enhances efficiency by facilitating on-the-go adjustments based on soil variations, obstacles, or changing field conditions.
- Implement Versatility: Hydraulic cylinders enable the attachment of various implements to agricultural machinery, expanding their functionality and versatility. In the case of plowing, hydraulic cylinders allow for the attachment and detachment of plow blades or other tillage implements. This versatility enables farmers to adapt their equipment to different soil types, field sizes, or specific plowing requirements, enhancing efficiency by maximizing the utility of the machinery.
- Efficient Time Management: Hydraulic cylinders contribute to time efficiency in agricultural tasks like plowing. With hydraulic systems, farmers can operate plows at higher speeds while maintaining control and precision. The responsive nature of hydraulic cylinders allows for efficient turning, maneuvering, and repositioning of plows, minimizing downtime and optimizing field coverage. This time efficiency translates into increased productivity and reduced overall operational costs.
In summary, hydraulic cylinders significantly contribute to the efficiency of agricultural tasks like plowing. Through powerful force generation, adjustable working depth, responsive control, implement versatility, and efficient time management, hydraulic systems equipped with cylinders enhance the performance and productivity of agricultural machinery. These contributions allow farmers to accomplish plowing tasks more effectively, optimize field operations, and achieve improved overall efficiency in their agricultural practices.

What benefits do hydraulic cylinders offer for tasks requiring heavy lifting or movement?
Hydraulic cylinders offer numerous benefits for tasks that involve heavy lifting or movement. Their unique design and characteristics make them well-suited for applications that require substantial force, precise control, and reliable operation. Here are the detailed benefits that hydraulic cylinders provide for such tasks:
1. High Force Generation:
– Hydraulic cylinders are capable of generating significant amounts of force. By utilizing hydraulic pressure, which can be easily amplified, hydraulic cylinders can exert substantial force to lift and move heavy loads. The force output of a hydraulic cylinder is directly proportional to the hydraulic pressure and the surface area of the piston. This high force capability makes hydraulic cylinders ideal for tasks that involve heavy lifting, pushing, or pulling.
2. Precise Control:
– Hydraulic cylinders offer precise control over the force and motion they generate. By regulating the flow of hydraulic fluid into the cylinder, the speed, direction, and position of the cylinder’s movement can be accurately controlled. This level of control is crucial for tasks that require precise positioning, delicate movements, or synchronization of multiple cylinders. It enables operators to perform operations with accuracy and minimize the risk of damage or accidents.
3. Safety:
– Hydraulic cylinders are designed with safety features to ensure the protection of both personnel and equipment. They incorporate overload protection mechanisms, such as relief valves, that prevent excessive force or pressure from damaging the system. Additionally, hydraulic cylinders allow for controlled and gradual movements, reducing the risk of sudden and uncontrolled motions that could pose safety hazards during heavy lifting or movement tasks.
4. Versatility and Adaptability:
– Hydraulic cylinders are versatile components that can be adapted to meet specific requirements. They can be customized based on factors such as force capacity, stroke length, speed, and mounting options, allowing them to be integrated into various types of machinery. This versatility makes hydraulic cylinders suitable for a wide range of applications, including construction, material handling, mining, agriculture, and more.
5. Smooth and Controlled Operation:
– Hydraulic cylinders provide smooth and controlled operation, ensuring efficient and reliable performance during heavy lifting or movement tasks. The hydraulic fluid acts as a cushioning medium, which helps dampen shocks and vibrations, resulting in smoother and quieter operation. This controlled operation also reduces the risk of damage to the load being lifted or the surrounding equipment.
6. 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. This compact design enables the integration of hydraulic cylinders into different types of equipment without compromising performance or efficiency.
7. Durability and Reliability:
– Hydraulic cylinders are built to withstand rigorous operating conditions and provide long-term reliability. They are constructed with robust materials, precise machining, and effective sealing systems to ensure durability and prevent fluid leakage. Hydraulic cylinders can withstand high pressures, heavy loads, and continuous use, making them suitable for demanding tasks involving heavy lifting or movement.
8. Energy Efficiency:
– Hydraulic cylinders contribute to energy efficiency in tasks requiring heavy lifting or movement. Hydraulic systems allow 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, which reduce energy consumption by optimizing the use of hydraulic fluid.
In summary, hydraulic cylinders offer several benefits for tasks that involve heavy lifting or movement. They provide high force generation, precise control, safety features, versatility, smooth operation, compact design, durability, and energy efficiency. These advantages make hydraulic cylinders indispensable components in various industries where heavy loads need to be lifted, pushed, or moved with accuracy and reliability.


editor by CX 2023-11-11