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: | Single Acting |
| Working Method: | Straight Trip |
| Structure: | Piston Type |
| Material: | Alloy Steel |
| Customization: |
Available
|
|
|---|
Can lift cylinders be used in aerial work platforms and scissor lifts?
Yes, lift cylinders are commonly used in aerial work platforms and scissor lifts. Here's an explanation of their utilization in these types of equipment:
Aerial work platforms, also known as aerial lifts or elevated work platforms, are used to provide elevated access for various tasks, such as maintenance, construction, or inspection work. Scissor lifts are a specific type of aerial work platform that utilize a scissor mechanism to vertically extend the platform. Lift cylinders play a crucial role in the lifting operation of both aerial work platforms and scissor lifts.
In scissor lifts, multiple lift cylinders are typically positioned vertically and connected to the scissor mechanism. These lift cylinders work in synchronization to extend or retract the scissor arms, thereby raising or lowering the platform. The lift cylinders exert force to expand the scissor arms, creating a lifting motion that allows the platform to reach elevated positions. By controlling the flow of hydraulic fluid to the lift cylinders, operators can easily adjust the platform height and achieve the desired working elevation.
Lift cylinders used in aerial work platforms and scissor lifts are usually hydraulic cylinders. Hydraulic systems offer the advantages of smooth operation, precise control, and high lifting capacities. The hydraulic system includes a pump, control valves, hydraulic lines, and the lift cylinders. When the hydraulic system is activated, the pump pressurizes the hydraulic fluid, which is then directed to the lift cylinders through the control valves. The pressurized fluid causes the lift cylinders to extend, resulting in the upward movement of the platform.
One of the key benefits of using lift cylinders in aerial work platforms and scissor lifts is their ability to provide stable and controlled lifting. The synchronized movement of the lift cylinders ensures that the platform remains level and secure during the lifting process. This stability is essential for safe working conditions at elevated heights.
In addition to lifting capabilities, lift cylinders in aerial work platforms and scissor lifts may incorporate features such as safety locks, overload protection, or emergency descent mechanisms. These safety measures enhance the overall performance and reliability of the equipment, ensuring the well-being of operators working at height.
Overall, lift cylinders are integral components in aerial work platforms and scissor lifts, enabling the vertical lifting motion and providing stability during elevated work. Their hydraulic operation, synchronized movement, and safety features make them essential for efficient and secure access at height.
Can lift cylinders be used in lifting and tilting equipment for material dumping?
Yes, lift cylinders can be used in lifting and tilting equipment for material dumping. Lift cylinders, also known as hydraulic cylinders, are commonly employed in various industrial applications that involve lifting, pushing, pulling, and holding heavy loads.
When it comes to lifting and tilting equipment for material dumping, lift cylinders play a crucial role in providing the necessary force and controlled movement. Here's how lift cylinders are used in this context:
- Lifting Mechanism: Lift cylinders are integrated into the lifting mechanism of equipment designed for material dumping. These cylinders are responsible for raising the load, such as a container or a bucket, to the desired height for dumping.
- Tilting Mechanism: Lift cylinders are also utilized in the tilting mechanism of the equipment. They enable controlled tilting of the load, allowing the material to be dumped at the desired angle or location.
- Load Capacity: Lift cylinders are selected based on the load capacity requirements of the equipment. The cylinders must be able to generate sufficient force to lift and tilt the load, ensuring safe and efficient material dumping.
- Control and Safety: Lift cylinders are typically controlled through a hydraulic system that regulates the flow of hydraulic fluid. This allows for precise control over the lifting and tilting actions. Safety features such as pressure relief valves and position sensors may also be incorporated to ensure safe operation.
The use of lift cylinders in lifting and tilting equipment for material dumping offers several advantages. It provides reliable and controlled lifting and tilting capabilities, allowing for efficient material handling. The hydraulic nature of these cylinders enables smooth and precise movements, enhancing the overall performance and productivity of the equipment.
In conclusion, lift cylinders are indeed suitable for use in lifting and tilting equipment for material dumping. Their ability to generate the necessary force and provide controlled movement makes them essential components in this type of machinery.
How does a lift cylinder handle variations in lift height?
A lift cylinder is designed to handle variations in lift height by utilizing its extendable and retractable piston rod. Here's an explanation of how a lift cylinder handles variations in lift height:
When a lift cylinder is activated, hydraulic fluid is directed into the cylinder chamber, creating pressure that extends the piston rod. As the piston rod extends, it pushes against the load, lifting it to the desired height.
When there are variations in lift height, the lift cylinder adjusts accordingly by controlling the extension and retraction of the piston rod. Here's how it works:
1. Extending the Piston Rod:
When the lift height needs to increase, the lift cylinder extends the piston rod further. This extension is achieved by increasing the flow of hydraulic fluid into the cylinder chamber. The increased fluid pressure pushes the piston and rod assembly, extending the rod and lifting the load to the required height.
2. Retracting the Piston Rod:
Conversely, when the lift height needs to decrease, the lift cylinder retracts the piston rod. This retraction is achieved by reducing the flow of hydraulic fluid into the cylinder chamber. The decreased fluid pressure allows the piston and rod assembly to retract, lowering the load to the desired height.
3. Precise Control and Positioning:
Lift cylinders are equipped with valves and control mechanisms that allow for precise control and positioning of the piston rod. By regulating the flow of hydraulic fluid and adjusting the pressure, the lift cylinder can achieve accurate and controlled movements, enabling it to handle variations in lift height with precision.
4. Adjustable Stroke Length:
Some lift cylinders have an adjustable stroke length, which refers to the distance the piston rod can travel within the cylinder barrel. By customizing the stroke length, the lift cylinder can accommodate different variations in lift height. The stroke length can be modified by adjusting the cylinder's dimensions or incorporating additional components.
5. Integration with Control Systems:
Advanced lift cylinder systems can be integrated with control systems, such as electronic controls or programmable logic controllers (PLCs), to automate and optimize lift height adjustments. These control systems can monitor and adjust the lift cylinder's movements based on predetermined parameters or feedback from sensors, ensuring precise and consistent lift height control.
In summary, a lift cylinder handles variations in lift height by extending or retracting the piston rod, controlling the flow and pressure of hydraulic fluid, achieving precise control and positioning, utilizing adjustable stroke length, and integrating with control systems. These capabilities enable the lift cylinder to adapt to different lift height requirements and provide accurate and controlled lifting operations.
editor by CX 2024-01-07