Product Description
1.Main Description
ETERNAL company design and manufacture heavy duty hydraulic cylinders that covering
the following fields:
Ø hydraulic press cylinder
Ø construction machinery cylinder
Ø mining machinery cylinder
Ø metallurgy machinery cylinder
Ø water power project cylinder
Ø marine hydraulic cylinder
Ø servo hydraulic cylinder
2. Design
Not only we could manufacture all kinds of hydraulic cylinders according to the drawing from our
customers,but also we could make a design according to customer’s requirements.If you
require our engineer to make a design,pls advise us the following 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 .
3. Manufacturing capability and cylinder size range
3.1 Cylinder bore diameter :max Ø1200mm
3.2 Cylinder length :10Meter
3.3 Max lifting capability :50 Tons
4.Manufacturing and inspection
4.1.Cylinder tube size and choice
4.1.1 According to the cylinder pressure and inside diameter size ,different steel tube Would be choosed .
1. ID ≤300mm , cold rolled precision seamless tube would be choosed
2. 300mm≤ID ≤500mm , hot rolled seamless tube would be choosed
3. 500mm≤ID ≤1000mm, forged tube would be choosed
4.1.2 Cylinder tube steel grade : SAE1571 , SAE1045 ,27SiMn , S355JR ,S355J2G3
St52-3 ,SUS304 ,SUS316L etc .
4.1.3 Cylinder tube inside boring and honing , roughness R0.2-R0.3,
4.1.4 Cylinder tube inside chromating : if necessary ,tube inside chromating could be applied
.
4.2 Piston rod is a very important part for hydraulic cylinder .
4.2.1 Piston rod steel grade : SAE1045, 42CrMo4, SUS410 ,SUS420, SUS304, SUS316L
4.2.2 Piston rod chromating and surface hardness .
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 .
4.3 Seal ring and O ring
According to the customers’ requirements and working condition , eternal company would choose suitable
seal ring kit , seal ring brand include :Parker , Merkel , NOK , HangZhou Rubber institute , ZheJiang brand etc . Eternal company would supply suitable seal solution for their customer so that hydraulic cylinder has more
lifetime , easy maintenance and simple repairing .
4.4 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 .Eternal company ensure that every welding seam has no any leak during lifetime
4.5 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 one By one , eternal company ensure that testing
pressure 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 .
4.6 Painting and storage .
After hydraulic cylinder pass through pressure test , painting is necessary .
Processing
HangZhou CHINAMFG Heavy Industry Co.Ltd was established in 2008.Our products mainly include hydraulic baling machine , scrap shearing machine ,and all kinds of heavy duty hydraulic cylinders etc.
We specialize on design and manufacture heavy duty hydraulic cylinders , scrap baler machine and shearing machine .Our hydraulic cylinders are widely used in different industry fields including:construction machinery,mining machinery, hydro~power project, offshore drilling platform, steel plant equipment , marine machinery,hydraulic lifting system etc. We have gained 10 patents for our hydraulic cylinders.
In 2008, our servo cylinders with cylinder bore 950mm for steel mill were exported to Poland.In 2009, our hydraulic cylinders with stroke 10 CHINAMFG were exported to Pakistan for water conservancy project. In 2016,cyliner with weight 90tons has been exported to Russian sucessfully .
Our hydraulic cylinder range: Bore:1000mm, Stroke:12 meter, testing pressure:50MPa We could make all kinds of hydraulic baler , hydraulic shear , scrap steel shredder machine , etc rated from 100 tons -1250tons . We could make all kinds of excavator spare parts , drill rig spare parts , steel mill spare parts according to OEM drawing , including all kinds of shaft and drill tools . We have heavy duty workshop with area 10000 square meters. There is doublelayer crane in the workshop.The lifting height could reach to 16 meter while lifting capacity could reach to 75 tons. Our machining equipment including Horizontal Lathe (11 meter ), Vertical CNC Machining Center, Display boring and milling machine, Frame type CNC machining center,CNC Lathe, Deep hole boring machine (13 meter), honing machine,etc. Testing equipment including Intelligent Pressure Test Machine, UT Detector, MT Detector, Chrome Thickness Meter, etc.
Eternal company would devote to supply first rate equipment and provide total solutionsto our customer. In the past 10 years, we devoted ourself to continuous market expanding and the researchand development of new products. Till now, our products have been export to nearly 50 countries and own good reputation from our customers .
You are welcome to visit our company !
FAQ
1. who are we?
We are based in ZheJiang , China, start from 2008,sell to Domestic Market(36.00%),Eastern Europe(21.00%),Southeast Asia(16.00%),South America(12.00%),North America(9.00%),Northern Europe(4.00%),South Asia(2.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Hydraulic Cylinder,Hydraulic Baler,Hydraulic Shear,Drill Toll,Rollers
4. why should you buy from us not from other suppliers?
We have rich experience on hydraulic baling machine, scrap shearing machine and hydraulic cylinder ,our hydraulic press has passedh through CE certification .
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Western Union;
Language Spoken:English,Chinese,Portuguese,Russian /* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Certification: | CE |
|---|---|
| Work Temperature: | Normal Temperature |
| Acting Way: | Double Acting |
| Working Method: | Straight Trip |
| Structure: | Piston Type |
| Material: | Alloy Steel |
| Customization: |
Available
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Can hydraulic cylinders be used for precise operations like CNC machining or molding?
Yes, hydraulic cylinders can be used for precise operations like CNC machining or molding. While hydraulic systems are commonly associated with heavy-duty applications, they can also provide the necessary precision and control required for precise operations in CNC machining and molding processes. Here’s a detailed explanation of how hydraulic cylinders can be utilized for such precise operations:
1. Force and Control:
– Hydraulic cylinders are capable of generating substantial force, which is essential for precise operations in CNC machining and molding. By using hydraulic pressure, the cylinders can deliver the required force to cut or shape materials accurately or exert pressure for molding operations. The hydraulic system allows precise control over the force applied, ensuring consistent and reliable performance.
2. Adjustable Speed and Positioning:
– Hydraulic cylinders offer adjustable speed and precise positioning capabilities, making them suitable for precise operations. By controlling the flow of hydraulic fluid, the speed of the cylinder’s movement can be adjusted according to specific requirements. This adaptability allows for fine-tuning the machining or molding process, achieving the desired precision in material removal or shaping. Hydraulic systems also enable accurate positioning of tools or molds, ensuring precise operations.
3. Integrated Feedback Systems:
– Advanced hydraulic systems can incorporate feedback sensors and control mechanisms to enhance precision in CNC machining and molding. 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, allowing for precise and accurate control over the operations. The feedback systems help maintain consistent performance and compensate for any deviations, ensuring high precision.
4. Damping and Vibration Control:
– Hydraulic cylinders can be equipped with damping mechanisms to minimize vibrations and ensure stability during CNC machining or molding operations. Vibrations can negatively impact precision by causing tool chatter or material deformation. By incorporating cushioning or damping features, hydraulic cylinders help absorb shocks and suppress vibrations, resulting in smoother and more accurate operations.
5. Customization and Adaptability:
– Hydraulic cylinders can be customized and adapted to meet the specific requirements of CNC machining or molding processes. Engineers can design cylinders with unique dimensions, stroke lengths, mounting options, and sealing arrangements to fit into equipment or systems with precise specifications. Customized hydraulic cylinders ensure optimal performance and compatibility for precise operations, enabling seamless integration into CNC machines or molding equipment.
6. Energy Efficiency:
– Hydraulic systems can be designed to be energy-efficient, contributing to cost savings in CNC machining or molding operations. By utilizing variable speed pumps, efficient control valves, and well-designed hydraulic circuits, energy consumption can be optimized. This efficiency reduces heat generation, leading to improved stability and precision in operations while minimizing energy costs.
7. Maintenance and Calibration:
– Regular maintenance and calibration of hydraulic systems are essential to maintain their precision in CNC machining or molding applications. Proper lubrication, inspection of seals, and replacement of worn-out components help ensure optimal performance. Regular calibration of control systems and feedback sensors ensures accurate readings and reliable operation, contributing to precision in machining or molding processes.
In summary, hydraulic cylinders can be effectively used for precise operations like CNC machining or molding. Their ability to generate substantial force, adjustable speed and positioning, integration with feedback systems, damping and vibration control, customization and adaptability, energy efficiency, and proper maintenance contribute to achieving the required precision in these operations. By leveraging the strengths of hydraulic systems, manufacturers can enhance the accuracy and reliability of CNC machining or molding processes, resulting in high-quality products and improved productivity.
Ensuring Controlled and Safe Force Application in Heavy Machinery with Hydraulic Cylinders
Hydraulic cylinders play a critical role in heavy machinery by ensuring controlled and safe force application. The ability to exert and control high forces is essential for heavy machinery operations, such as lifting, pressing, pushing, or pulling heavy loads. Let’s explore how hydraulic cylinders ensure controlled and safe force application in heavy machinery:
- Force Control: Hydraulic cylinders provide precise force control capabilities. The hydraulic system’s pressure can be adjusted to regulate the force exerted by the cylinder. This control allows operators to apply the necessary force for a specific task while ensuring it remains within safe limits. By accurately controlling the force, hydraulic cylinders help prevent excessive force that could damage the machinery or compromise the safety of the operation.
- Load Balancing: In heavy machinery, multiple hydraulic cylinders are often used in conjunction to distribute and balance the applied force. By using multiple cylinders, the load can be evenly distributed across the machinery, minimizing stress concentrations and ensuring controlled force application. This load balancing approach enhances the stability and safety of the machinery, preventing uneven loading that could lead to structural issues or instability.
- Safety Valves: Hydraulic systems in heavy machinery are equipped with safety valves to protect against excessive force or overloading. Safety valves are designed to release hydraulic fluid from the cylinder when the force exceeds a predetermined threshold. This prevents the force from reaching dangerous levels, safeguarding the machinery and preventing potential accidents or damage. Safety valves provide an additional layer of safety and ensure controlled force application even in unexpected circumstances.
- Pressure Relief Systems: Hydraulic cylinders incorporate pressure relief systems to further enhance safety. These systems are designed to relieve excess pressure in the hydraulic system, which could occur due to factors such as thermal expansion or system malfunctions. By relieving excess pressure, the pressure relief systems prevent sudden and uncontrolled force surges, maintaining safe and controlled force application in heavy machinery.
- Structural Integrity: Hydraulic cylinders are designed to withstand the high forces and loads associated with heavy machinery applications. The cylinders are constructed using robust materials, such as high-strength steel, and undergo rigorous testing to ensure their structural integrity. This ensures that the cylinders can safely handle the forces applied during heavy machinery operations without experiencing failures or deformations that could compromise the safety and controlled force application.
In summary, hydraulic cylinders ensure controlled and safe force application in heavy machinery through force control, load balancing, safety valves, pressure relief systems, and robust structural design. These features and design considerations enable operators to exert the necessary force while maintaining safety and preventing excessive loads or force surges. By incorporating hydraulic cylinders into heavy machinery, manufacturers can achieve controlled force application, enhance operational safety, and protect the machinery from damage or failure.
How do hydraulic cylinders contribute to the efficiency of heavy machinery like excavators?
Hydraulic cylinders play a crucial role in enhancing the efficiency and performance of heavy machinery, such as excavators. These powerful hydraulic actuators enable excavators to perform various tasks efficiently and effectively. Here’s a detailed explanation of how hydraulic cylinders contribute to the efficiency of heavy machinery like excavators:
1. Force and Power:
– Hydraulic cylinders provide the necessary force and power required for the excavation process. They convert hydraulic energy from the hydraulic fluid into linear mechanical force, allowing the excavator to exert significant pushing and pulling forces. The force generated by hydraulic cylinders enables the digging arm or boom of the excavator to penetrate and break through tough materials, such as soil, rocks, or concrete, with ease and efficiency.
2. Precise Control:
– Hydraulic cylinders offer precise control over the movement of excavator components. By regulating the flow of hydraulic fluid to the cylinders, operators can control the speed, direction, and positioning of the excavator’s arm, boom, bucket, and other attachments. This precise control allows operators to perform delicate operations, such as fine grading or precise material placement, with accuracy and efficiency.
3. Versatility and Adaptability:
– Hydraulic cylinders enable excavators to perform a wide range of tasks by facilitating the quick and easy interchangeability of attachments. Excavators can be equipped with various specialized attachments, including buckets, breakers, grapples, and augers, which can be efficiently connected and disconnected using hydraulic cylinders. This versatility and adaptability enhance the efficiency of excavators by enabling them to tackle different tasks without the need for extensive manual adjustments or downtime.
4. Increased Productivity:
– The power and control provided by hydraulic cylinders significantly increase the productivity of excavators. Excavators equipped with hydraulic cylinders can complete tasks more quickly and efficiently compared to manual or mechanically-driven machinery. The precise control over movements allows for faster cycle times, reduced idle time, and improved overall productivity on the worksite.
5. Enhanced Digging and Lifting Capabilities:
– Hydraulic cylinders enable excavators to perform digging and lifting operations with enhanced capabilities. The force generated by hydraulic cylinders allows excavators to dig deeper and lift heavier loads compared to other types of machinery. This increased digging and lifting capacity contributes to the efficiency of excavators by reducing the number of passes required to complete a task and improving overall productivity.
6. Durability and Reliability:
– Hydraulic cylinders are designed to withstand heavy loads, challenging operating conditions, and frequent use. They are built with robust materials, such as high-strength steel, and undergo stringent quality control measures during manufacturing. The durability and reliability of hydraulic cylinders ensure that excavators can operate efficiently even in demanding environments, minimizing downtime and maximizing productivity.
7. Energy Efficiency:
– Hydraulic systems, including hydraulic cylinders, are known for their energy efficiency. Hydraulic cylinders can deliver high force outputs while consuming relatively low amounts of hydraulic fluid. This energy efficiency translates to lower fuel consumption and reduced operating costs for excavators. The efficient use of hydraulic power contributes to the overall efficiency and sustainability of heavy machinery operations.
8. Safety:
– Hydraulic cylinders play a vital role in ensuring the safety of excavator operations. They provide controlled and predictable movements, reducing the risk of sudden or uncontrolled motions. The precise control offered by hydraulic cylinders allows operators to perform tasks safely and accurately, minimizing the chances of accidents or damage to the machinery or surrounding environment.
Overall, hydraulic cylinders are essential components that significantly contribute to the efficiency of heavy machinery like excavators. By providing force, precise control, versatility, increased productivity, enhanced capabilities, durability, energy efficiency, and safety, hydraulic cylinders enable excavators to perform a wide range of tasks efficiently and effectively in various industries, including construction, mining, and landscaping.
editor by CX 2024-02-06