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 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.
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
|
|
|---|
How do telescopic cylinders contribute to energy-efficient equipment operation?
Telescopic cylinders play a significant role in promoting energy-efficient equipment operation. Here’s a detailed explanation:
Reduced energy consumption:
Telescopic cylinders are designed to minimize energy consumption during equipment operation. The hydraulic system of telescopic cylinders allows for precise control over the extension and retraction of the cylinder stages. This control enables the equipment to use the minimum amount of hydraulic fluid and energy required to achieve the desired movement or position.
Efficient force transmission:
Telescopic cylinders are engineered to efficiently transmit forces from the hydraulic system to the desired application. The telescopic design allows for a direct and linear transfer of force, reducing energy losses that can occur in more complex mechanical systems. This efficient force transmission ensures that the energy supplied to the telescopic cylinder is effectively utilized to perform the desired work.
Compactness and weight reduction:
Telescopic cylinders offer compactness in equipment design, which contributes to energy efficiency. By retracting the cylinder stages, the overall length of the equipment can be minimized, reducing weight and inertia. This reduction in weight and inertia requires less energy to start and stop the movement of the equipment, resulting in energy savings during operation.
Optimized design:
Telescopic cylinders are designed with efficiency in mind. Manufacturers consider factors such as the cylinder’s bore size, rod diameter, and overall construction to ensure optimal performance while minimizing energy requirements. By using lightweight and high-strength materials, optimizing the cylinder’s dimensions, and reducing internal friction, telescopic cylinders can operate efficiently and contribute to energy savings.
Controlled motion:
Telescopic cylinders provide precise and controlled motion, allowing equipment operators to perform tasks with accuracy and efficiency. The hydraulic control system in telescopic cylinders enables smooth and proportional extension and retraction, reducing the need for excessive force or multiple adjustments. This controlled motion prevents energy waste and ensures that the equipment operates efficiently.
Applications in energy-efficient equipment:
Telescopic cylinders are utilized in various energy-efficient equipment, such as hybrid or electric-powered machinery. These equipment types rely on the optimization of energy usage to minimize environmental impact and reduce operating costs. Telescopic cylinders contribute to these objectives by providing efficient force transmission, controlled motion, and compact design.
Furthermore, the integration of advanced technologies, such as electronic control systems, sensors, and feedback mechanisms, can enhance the energy efficiency of equipment that incorporates telescopic cylinders. These technologies allow for further optimization of hydraulic system performance, energy recovery, and intelligent control of equipment operations.
Overall, telescopic cylinders contribute to energy-efficient equipment operation through reduced energy consumption, efficient force transmission, compactness and weight reduction, optimized design, and controlled motion. By utilizing telescopic cylinders in equipment design and considering energy-efficient practices, industries can achieve more sustainable and economical operation.
Consulting with equipment manufacturers or industry experts can provide further insights into the energy-saving benefits and applications of telescopic cylinders in specific equipment types.
Can telescopic cylinders be used in forestry equipment for tree handling?
Yes, telescopic cylinders are commonly used in forestry equipment for tree handling tasks. Here’s a detailed explanation:
Tree felling and extraction:
Telescopic cylinders play a vital role in tree felling and extraction operations. They are utilized in equipment such as feller bunchers, harvesters, and forwarders. Telescopic cylinders provide the necessary force to cut down trees and extract them from the forest. The cylinders are used in combination with cutting heads, grapples, or clamps to grip, hold, and manipulate trees during the felling and extraction processes.
Boom and arm extension:
In forestry equipment, telescopic cylinders are employed to extend the booms and arms of machinery. This extension capability allows operators to reach trees located at various distances and heights, facilitating efficient tree handling. Telescopic cylinders enable the equipment to adapt to different tree sizes and positions, enhancing productivity and reducing manual labor.
Precise control:
Telescopic cylinders provide precise control over tree handling movements. The hydraulic control system allows operators to extend and retract the cylinders with accuracy, enabling controlled positioning of trees during felling, extraction, or stacking. This precise control is crucial for ensuring operator safety, preventing damage to the equipment or surrounding environment, and optimizing operational efficiency.
Load handling and stacking:
Telescopic cylinders support load handling and stacking operations in forestry equipment. They provide the necessary lifting force to handle tree logs and facilitate stacking for transportation or processing. The cylinders work in conjunction with grapples, forks, or other attachments to securely grip and manipulate tree logs during loading, unloading, or stacking activities.
Stability and balance:
Telescopic cylinders contribute to the stability and balance of forestry equipment during tree handling tasks. The controlled extension and retraction of the cylinders help maintain the proper weight distribution and prevent tipping or imbalance when handling heavy tree logs. This ensures the safety of operators and equipment in challenging forestry environments.
Advantages of telescopic cylinders in forestry equipment:
Telescopic cylinders offer several advantages in tree handling applications:
- Enhanced reach: Telescopic cylinders enable extended reach, allowing operators to access trees at various distances and heights.
- Precise control: The hydraulic control system provides precise control over tree handling movements, ensuring accurate positioning and manipulation.
- Efficient load handling: Telescopic cylinders provide the necessary force for lifting, holding, and stacking tree logs, improving efficiency in forestry operations.
- Adaptability: The extension capability of telescopic cylinders allows for adaptation to different tree sizes and positions, enhancing versatility in tree handling tasks.
- Stability and safety: Telescopic cylinders contribute to equipment stability and operator safety by maintaining proper weight distribution during tree handling activities.
Overall, telescopic cylinders are widely used in forestry equipment for tree handling tasks, offering extended reach, precise control, efficient load handling, adaptability, and stability. They enhance the productivity, safety, and efficiency of forestry operations.
It’s important to consult the equipment manufacturer’s documentation and guidelines for specific information on the integration, operation, and maintenance of telescopic cylinders in forestry equipment.
What are the components and design features of a telescopic cylinder?
A telescopic cylinder consists of various components and incorporates specific design features to enable its functionality and performance. Here’s a detailed explanation:
Components of a telescopic cylinder:
- Stages or Sleeves: A telescopic cylinder comprises multiple stages or sleeves that are nested inside one another. These stages are usually cylindrical in shape and are made of high-strength steel or aluminum alloy. The number of stages can vary depending on the specific design and application requirements.
- Piston and Rod: Each stage of a telescopic cylinder has its own piston and rod assembly. The piston is located inside the stage and is connected to the rod, which extends through the center of the stage. The piston and rod assembly is responsible for generating the linear motion of each stage during extension and retraction.
- Seals: Sealing elements, such as O-rings or lip seals, are used to ensure a hydraulic seal between the stages. These seals prevent leakage of hydraulic fluid and maintain pressure within each stage during operation. The seals also help to protect the internal components from contaminants.
- Locking Mechanism: Telescopic cylinders often incorporate a locking mechanism to secure the extended stages in position. This mechanism ensures stability and prevents unintentional retraction of the cylinder under load. The locking mechanism can be mechanical, hydraulic, or a combination of both, depending on the design and application requirements.
- Guides and Bearings: To maintain proper alignment and minimize friction between the stages, telescopic cylinders may include guides and bearings. These components facilitate smooth extension and retraction of the stages and provide structural support.
- Hydraulic Connections: Telescopic cylinders have hydraulic connections to supply hydraulic fluid for extension and retraction. These connections typically include ports or fittings for the inlet and outlet of hydraulic fluid. Flexible hydraulic hoses or tubing are used to connect the cylinder to the hydraulic system of the equipment.
Design features of a telescopic cylinder:
- Nested Structure: The nested structure is a fundamental design feature of a telescopic cylinder. It allows the stages to extend and retract within one another, enabling a longer stroke length while maintaining a compact retracted length.
- Articulation Capability: Some telescopic cylinders incorporate articulation capability, which allows the cylinder to adjust its angle or position relative to the equipment. This feature enhances the versatility of the cylinder and enables it to adapt to different mounting orientations and working conditions.
- Internal Flow Paths: The design of a telescopic cylinder includes internal flow paths that facilitate the controlled flow of hydraulic fluid between the stages during extension and retraction. These flow paths ensure synchronized movement of the stages and contribute to the overall performance and stability of the cylinder.
- Surface Treatment: The external surfaces of telescopic cylinders are often treated or coated to provide protection against corrosion, wear, and environmental elements. Common surface treatments include painting, powder coating, or electroplating.
These components and design features work together to enable the functionality, reliability, and performance of a telescopic cylinder. It’s important to consult the manufacturer’s guidelines and specifications for proper installation, operation, and maintenance of the telescopic cylinder based on the specific application requirements.
editor by CX 2024-02-17