Product Description
Product Description
Single acting hydraulic cylinder for dump truck
PK SINGLE-ACTING TELESCOPIC CYLINDERS
Work: Up by hydraulic control. Down by trailer body's self weightInstall position: front-end of the truck
Application:
Dump Trucks and Trailers
Mining Vehicles
Material Handling Vehicles
Construction Vehicles
| Model | Extended Stages | Working Pressure | Max.Rod Diameter | Max.Stroke Length | Lifting Capacity | FC Price (USD) | Suitable Length of Truck Body |
| 129-3E-3880 | 3 | 16-19 MPa | 129mm | 3880mm | 20-35 ton | 1110 | 5.2m |
| 149-3E-3880 | 3 | 16-19 MPa | 149mm | 3880mm | 25-45 ton | 1293 | 5.2m |
| 149-3E-4280 | 3 | 16-19 MPa | 149mm | 4280mm | 25-45 ton | 1293 | 5.6m |
| 149-4E-3880 | 4 | 16-19 MPa | 149mm | 3880mm | 25-40 ton | 1293 | 5.2m |
| 149-4E-4280 | 4 | 16-19 MPa | 149mm | 4280mm | 25-40 ton | 1293 | 5.6m |
| 169-4E-4280 | 4 | 16-19 MPa | 169mm | 4280mm | 30-50 ton | 1400 | 5.2-5.6m |
| 169-4E-4640 | 4 | 16-19 MPa | 169mm | 4640mm | 32-55 ton | 1495 | 5.6-6.1m |
| 169-4E-5000 | 4 | 16-19 MPa | 169mm | 5000mm | 32-60 ton | 1585 | 6.2-6.8m |
| 169-4E-5180 | 4 | 16-19 MPa | 169mm | 5180mm | 32-60 ton | 1630 | 6.2-6.9m |
| 169-4E-5390 | 4 | 16-19 MPa | 169mm | 5390mm | 32-60 ton | 1675 | 6.2-6.9 |
| 169-4E-5460 | 4 | 16-19 MPa | 169mm | 5460mm | 32-60 ton | 1695 | 6.5-7.3 |
| 185-4E-4280 | 4 | 16-19 MPa | 185mm | 4280mm | 25-45 ton | 1295 | 5.6m |
| 185-4E-4640 | 4 | 16-19 MPa | 185mm | 4640mm | 30-45 ton | 1385 | 5.6-6.1m |
| 185-4E-5000 | 4 | 16-19 MPa | 185mm | 5000mm | 32-50 ton | 1475 | 6.2-6.5m |
| 185-4E-5390 | 4 | 16-19 MPa | 185mm | 5390mm | 40-60 ton | 1570 | 6.2-6.8m |
| 185-4E-5460 | 4 | 16-19 MPa | 185mm | 5460mm | 40-65 ton | 1461 | 6.5-7.3m |
| 185-4E-5780 | 4 | 16-19 MPa | 185mm | 5780mm | 45-70 ton | 1610 | 6.9-7.7m |
| 185-4E-6000 | 4 | 16-19 MPa | 185mm | 6000mm | 50-80 ton | 1755 | 7.3-8.2m |
| 191-5E-5780 | 5 | 16-19 MPa | 191mm | 5780mm | 40-70 ton | 2125 | 6.9-7.7m |
| 191-5E-6200 | 5 | 16-19 MPa | 191mm | 6200mm | 45-80 ton | 2270 | 7.3-8.2m |
| 191-5E-7130 | 5 | 16-19 MPa | 191mm | 7130mm | 50-85 ton | 2640 | 7.8-8.5m |
| 191-5E-9030 | 5 | 16-19 MPa | 191mm | 9030mm | 55-90 ton | 3380 | 10-11m |
| 220-5E-7130 | 5 | 16-19 MPa | 220mm | 7130mm | 65-100 ton | 3420 | 7.8-8.5m |
| 220-5E-9030 | 5 | 16-19 MPa | 220mm | 9030mm | 65-100 ton | 4435 | 10-11m |
NOTICE :
1. All cylinder tube material is 27SiMn seamless honed tube.
2. All mounting parts use the high strength forgings and welded on the cylinder rod or tube by the automatic welding machine. Regular and full weld.
3. All import material seal kit (voneseals, hallite or hercules). U-cap with V packing without seal adjustment needed.
4. All the cylinder tube (quenching and heat treatment), with more than 0.03mm hard chromeplating.
5. All tube doing the boring and rolling.
6. All the part produced by CNC MACHINING CENTER.
7. All the parts do the clean before assembly.
All the cylinder do the pressure test and keep pressure more than 5 Min. Test the welding part with developer.
Production process
Product Parameters
Company Profile
ZheJiang Dingsheng Industrial Trade Co., Ltd. is a professional enterprise that supply hydraulic cylinders, hydraulic systems, hydraulic power unit and hydraulic machinery and equipment, with complete product categories, reliable quality and reasonable price. Our factory covers an area of 66,600 square meters. It has a total of 100 sets of deep hole boring equipment, test equipment, various CNC machining machine, cylindrical grinding machines, centerless grinding machines, welding production lines. The factory passed IS O 9001quality system certification.
We take time with each of our customers to ensure that their needs are met from the purchase order to the production, inspection till the delivery, great care goes into each single item we manufacture and sell!
Besides, you deserve more from Dingsheng to know us better:
Verify audit report/Replied within 12 hours/Up to date catalogs/Inspection report/On-time Shipping.
From the vast offerings of innovative designing to our exceptional service, including the ability to customize programs & strict quality control, competitive pricing, these are just a few criteria that have allowed us to achieve the level of success we have today and to partner with some of exciting, innovative customers in today's international marketplace.
At Dingsheng, your success is our success!
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What advancements in hydraulic cylinder technology have improved sealing and reliability?
Advancements in hydraulic cylinder technology have continuously contributed to improving sealing and reliability in hydraulic systems. These advancements aim to address common challenges such as leakage, wear, and failure of seals, ensuring optimal performance and longevity. Here are several key advancements that have significantly improved sealing and reliability in hydraulic cylinders:
1. High-Performance Sealing Materials:
- The development of advanced sealing materials has greatly improved the sealing capabilities of hydraulic cylinders. Traditional sealing materials like rubber have been replaced or enhanced with high-performance materials such as polyurethane, PTFE (polytetrafluoroethylene), and various composite materials. These materials offer superior resistance to wear, temperature, and chemical degradation, resulting in improved sealing performance and extended seal life.
2. Enhanced Seal Designs:
- Advancements in seal designs have focused on improving sealing efficiency and reliability. Innovative seal profiles, such as lip seals, wipers, and scrapers, have been developed to optimize fluid retention and prevent contamination. These designs provide better sealing performance, minimizing the risk of fluid leakage and maintaining system integrity. Additionally, improved seal geometries and manufacturing techniques ensure tighter tolerances, reducing the potential for seal failure due to misalignment or extrusion.
3. Integrated Seal and Bearing Systems:
- Hydraulic cylinders now incorporate integrated seal and bearing systems, where the sealing elements also serve as bearing surfaces. This design approach reduces the number of components and potential failure points, improving overall reliability. By integrating seals and bearings, the risk of seal damage or displacement due to excessive loads or misalignment is minimized, resulting in enhanced sealing performance and increased reliability.
4. Advanced Coatings and Surface Treatments:
- The application of advanced coatings and surface treatments to hydraulic cylinder components has significantly improved sealing and reliability. Coatings such as chrome plating or ceramic coatings enhance surface hardness, wear resistance, and corrosion resistance. These surface treatments provide a smoother and more durable surface for seals to operate against, reducing friction and improving sealing performance. Moreover, specialized coatings can also provide self-lubricating properties, reducing the need for additional lubrication and enhancing reliability.
5. Sealing System Monitoring and Diagnostic Technologies:
- The integration of monitoring and diagnostic technologies in hydraulic systems has revolutionized seal performance and reliability. Sensors and monitoring systems can detect and alert operators to potential seal failures or leaks before they escalate. Real-time monitoring of pressure, temperature, and seal performance parameters allows for proactive maintenance and early intervention, preventing costly downtime and ensuring optimal sealing and reliability.
6. Computational Modeling and Simulation:
- Computational modeling and simulation techniques have played a significant role in advancing hydraulic cylinder sealing and reliability. These tools enable engineers to analyze and optimize seal designs, fluid flow dynamics, and contact stresses. By simulating various operating conditions, potential issues such as seal extrusion, wear, or leakage can be identified and mitigated early in the design phase, resulting in improved sealing performance and enhanced reliability.
7. Systematic Maintenance Practices:
- Advances in hydraulic cylinder technology have also emphasized the importance of systematic maintenance practices to ensure sealing and overall system reliability. Regular inspection, lubrication, and replacement of seals, as well as routine system flushing and filtration, help prevent premature seal failure and optimize sealing performance. Implementing preventive maintenance schedules and adhering to recommended service intervals contribute to extended seal life and enhanced reliability.
In summary, advancements in hydraulic cylinder technology have led to significant improvements in sealing and reliability. High-performance sealing materials, enhanced seal designs, integrated seal and bearing systems, advanced coatings and surface treatments, sealing system monitoring and diagnostics, computational modeling and simulation, and systematic maintenance practices have all played key roles in achieving optimal sealing performance and increased reliability. These advancements have resulted in more efficient and dependable hydraulic systems, minimizing leakage, wear, and failure of seals, and ultimately improving the overall performance and longevity of hydraulic cylinders in diverse applications.
Can you provide real-world examples of machinery that heavily rely on hydraulic cylinders?
Hydraulic cylinders are widely used in various industries and applications due to their ability to provide powerful and precise linear motion. They play a crucial role in enabling the operation of heavy machinery that requires controlled force and movement. Here are some real-world examples of machinery that heavily rely on hydraulic cylinders:
1. Construction Equipment:
- Hydraulic cylinders are extensively used in construction machinery, such as excavators, bulldozers, loaders, and cranes. These machines rely on hydraulic cylinders to perform tasks like lifting heavy loads, extending and retracting booms, tilting buckets, and controlling the movement of various components. Hydraulic cylinders provide the power and precision required to handle the demanding conditions and heavy loads encountered in construction projects.
2. Agricultural Machinery:
- Many agricultural machines, including tractors, combine harvesters, and sprayers, utilize hydraulic cylinders for critical operations. Hydraulic cylinders are used to control the movement of attachments, such as front loaders, backhoes, and plows. They enable functions like lifting and lowering implements, adjusting cutting heights, and controlling the positioning of harvesting equipment. Hydraulic cylinders enhance efficiency and productivity in agricultural operations.
3. Material Handling Equipment:
- Hydraulic cylinders are integral components of material handling equipment, such as forklifts, pallet jacks, and cranes. These machines rely on hydraulic cylinders to lift and lower loads, tilt platforms or forks, and control the movement of lifting mechanisms. Hydraulic cylinders provide the necessary strength and precision to handle heavy loads and ensure safe and efficient material handling operations.
4. Industrial Machinery:
- Various industrial machinery and equipment heavily rely on hydraulic cylinders for critical functions. Examples include hydraulic presses, injection molding machines, metal-forming machines, and hydraulic-powered robots. Hydraulic cylinders enable precise control of force and movement in these applications, allowing for accurate shaping, pressing, and assembly processes.
5. Mining Equipment:
- Hydraulic cylinders are extensively used in mining machinery and equipment. Underground mining machines, such as continuous miners and longwall shearers, utilize hydraulic cylinders for cutting, shearing, and roof support operations. Surface mining equipment, including hydraulic shovels, draglines, and haul trucks, rely on hydraulic cylinders for tasks like bucket movement, boom extension, and vehicle suspension.
6. Automotive Industry:
- The automotive industry extensively utilizes hydraulic cylinders in various applications. Hydraulic cylinders are employed in vehicle suspension systems, power steering systems, convertible tops, and hydraulic brake systems. They enable smooth and controlled movement, precise steering, and efficient braking in automobiles.
7. Aerospace and Aviation:
- Hydraulic cylinders are utilized in aerospace and aviation applications, such as aircraft landing gear systems, wing flaps, and cargo handling equipment. Hydraulic cylinders provide the necessary force and control for extending and retracting landing gear, adjusting wing flaps, and operating cargo doors, ensuring safe and reliable aircraft operations.
8. Marine and Offshore Industry:
- Hydraulic cylinders are essential components in marine and offshore equipment, including ship cranes, winches, and hydraulic-powered anchor systems. They enable lifting, lowering, and positioning of heavy loads, as well as the control of various marine equipment.
These are just a few examples of machinery and industries that heavily rely on hydraulic cylinders. The versatility, power, and precise control offered by hydraulic cylinders make them indispensable in a wide range of applications, where controlled linear motion and force are essential.
What maintenance practices are essential for extending the lifespan of hydraulic cylinders?
Maintaining hydraulic cylinders is crucial for extending their lifespan and ensuring optimal performance. Regular maintenance helps prevent premature wear, damage, and failure, ultimately reducing downtime and saving costs. Here are some essential maintenance practices to consider for extending the lifespan of hydraulic cylinders:
1. Regular Inspections:
- Conduct routine visual inspections of hydraulic cylinders to identify any signs of damage, leaks, or wear. Inspect the cylinder body, piston rod, seals, and mounting points. Look for fluid leaks, rust, dents, or any abnormal wear patterns. Early detection of issues allows for timely repairs or replacements, preventing further damage and extending the lifespan of the cylinder.
2. Cleanliness:
- Maintain a clean environment around hydraulic cylinders to prevent contaminants from entering the system. Dust, dirt, and debris can damage seals and other internal components, leading to accelerated wear and reduced performance. Regularly clean the cylinder and its surroundings to minimize the risk of contamination.
3. Proper Lubrication:
- Adequate lubrication is critical for the smooth operation and longevity of hydraulic cylinders. Follow the manufacturer's recommendations for lubrication intervals and use the appropriate lubricant. Apply lubrication to the cylinder's moving parts, such as the piston rod, to reduce friction and minimize wear.
4. Seal Maintenance:
- Seals play a vital role in preventing hydraulic fluid leaks and maintaining the cylinder's performance. Inspect and replace worn or damaged seals promptly. Ensure that seals are properly installed and lubricated. Regularly clean the seal grooves to remove any debris that could compromise seal effectiveness.
5. Pressure Checks:
- Periodically check the hydraulic system's pressure to ensure it is within the recommended operating range. Excessive pressure can strain the cylinder and its components, leading to premature wear. Monitor pressure levels and make adjustments as necessary to prevent overloading the cylinder.
6. Control Valve Maintenance:
- Maintain and inspect control valves that regulate the flow and direction of hydraulic fluid. Ensure that the valves are functioning correctly and not causing excessive stress or pressure spikes in the cylinder. Clean or replace control valves if they are damaged or malfunctioning.
7. Cylinder Alignment:
- Proper alignment of hydraulic cylinders is essential for their longevity. Misalignment can cause excessive side loads, leading to uneven wear and potential damage. Ensure that the cylinder is correctly aligned with other components and that the mounting points are secure.
8. Preventing Overloading:
- Avoid subjecting hydraulic cylinders to loads exceeding their rated capacity. Overloading can cause internal damage, seal failure, and reduced lifespan. Ensure that the load requirements are within the cylinder's capabilities and consider using safety devices like overload protection systems when necessary.
9. Training and Operator Awareness:
- Provide proper training to equipment operators on the correct use and handling of hydraulic cylinders. Operators should be aware of the cylinder's limitations, safe operating procedures, and the importance of regular maintenance. Promote a culture of proactive maintenance and encourage operators to report any potential issues promptly.
10. Documentation and Record-Keeping:
- Maintain detailed documentation of all maintenance activities, including inspections, repairs, and replacements. Keep records of lubrication schedules, pressure checks, and any maintenance performed on the hydraulic cylinders. This documentation helps track the cylinder's history, identify recurring issues, and plan future maintenance effectively.
By following these maintenance practices, hydraulic cylinder lifespan can be extended, ensuring reliable performance and reducing the risk of unexpected failures. Regular inspections, cleanliness, proper lubrication, seal maintenance, pressure checks, control valve maintenance, cylinder alignment, preventing overloading, operator training, and documentation contribute to the overall longevity and optimal functioning of hydraulic cylinders.
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editor by Dream 2024-10-08