Tag Archives: rch hydraulic

China Custom 13-100t Rch Series Single Acting Hollow Plunger Hydraulic Cylinder vacuum pump engine

Product Description

Product Description

Single Acting Hollow Plunger Hydraulic Cylinder

Single acting hollow plunger hydraulic cylinder applys to processing, maintenance and traction work. The special design of the hollow piston rod makes the tow bar or cable can pass through the hydraulic cylinder to conduct lifting or jacking operation, commonly used in the work of backward traction and CHINAMFG extrusion. Equipped with interchangeable steel reinforced piston base, can also be used for regular lifting operation.
 

Features

* Baked enamel finish for increased corrosion resistance.
* Hollow plunger design allows for both pull and push forces.
* Collar threads for easy fixturing.
* Built-in scraper seal reduces contamination, extending cylinder life.
* 3/8 “- 18NPT coupler and dust cap included on all models.

 

Details lmages

Product Specifications

Item No

Capacity 

 

(T)

Max. Working Pressure 

 

(MPa)

Closed Height

A

(mm)

Sroke

 

(mm)

Center Hole Diameter

Y

(mm)

Weight

 

(kg)

SOV-RCH-120 13 70 55 8 19.6 1.5

Recommend Products

Company Profile

SOV Hydraulic Technoloy (ZheJiang ) Co., Ltd. is a professional manufacturing in hydraulic tools and products, we have been in the industry for more than 20 years. Since the establishment in 1995, we successfully transformed from OEM manufacturer to create our own brand SOV, and our factory has been approved by CE, ISO9001:2008 consecutively. Our Products have been widely used in petrochemical, cement, shipbuilding, steel plant and heavy constructions areas, etc.

We produce and supply Hydraulic tools, such as:
* Hydraulic cylinders, jacks (5-1000ton), single acting and double acting, hollow plunger;
* Hydraulic/ electric /pneumatic torque wrench (100-72000Nm);
* Hydraulic bolt tensioner (100-11486NM);
* Hydraulic pumps, manual and electric type (max up to 3000bar);
* Integrated hydraulic lifting system solutions ( 4-72 points lifting system for house translation or leveling, bridge supporting and tank welding supporting)
* Hydraulic nut and couplings. (M50-Tr1000)

FAQ

Q1: How can contact sales ?
A1: Please click the contact find our website and email address.
Q2: How can I buy CHINAMFG products in my country?
A2: Please send us an inquiry or email , we will reply to your if there is distributor in your country.
Q3: Can I have CHINAMFG products catalog and price list ?
A3: Please send us an email for price list
Q4: How long does it take to get the product If I place an order?
A4: If products stock available, after confirmation of your payment or advance payment , we will pack and deliver in 3-7 days. If you select international parcel service, it can be arrived in 3-7 days. If it is by sea shipment, it will take 15-45 days depending on different locations
Q5: How to make payment ?
A5: First send us an inquiry, and we will reply you quotation, if our price suits you, we will prepare proforma invoice with our banking details.
Q6: Manufacturing time?
A6: Please send us an inquiry for stock condition, if we don’t have stock, and it is our standard products (refer to our model), it can be produced in 10-20 days. If it is customized, not our standard products, it will take 20-45 days to produce.

WHY CHOOSE US

Our Services:
* 24 hours online service;
* One year warranty, repair and service for the whole life;
* Question report will be replied in 48 hours;
* Quality guaranteed.
Packaging:
* All products will be packed with wooden case.
Shipping:
* Small quantity: by international exress, such as DHL, TNT, FEDEX, UPS, etc. depending on the customers’ choice. Goods will arrive within 7 days in normal cicumstances;
* Large quantity: by sea transportation. Goods will arrive in 10~45 days, according to the diatance.

 

 
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Certification: CE, ISO9001
Pressure: High Pressure
Work Temperature: Normal Temperature
Acting Way: Single Acting
Working Method: Straight Trip
Adjusted Form:
Customization:
Available

|

hydraulic cylinder

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.

hydraulic cylinder

Advancements in Hydraulic Cylinder Technology Improving Corrosion Resistance

Advancements in hydraulic cylinder technology have led to significant improvements in corrosion resistance. Corrosion is a major concern in hydraulic systems, especially in environments where cylinders are exposed to moisture, chemicals, or corrosive agents. These advancements aim to enhance the durability and longevity of hydraulic cylinders. Let’s explore some of the key advancements in hydraulic cylinder technology that have improved corrosion resistance:

  1. Corrosion-Resistant Materials: The use of corrosion-resistant materials is a fundamental advancement in hydraulic cylinder technology. Stainless steel, for example, offers excellent resistance to corrosion, making it a popular choice in marine, offshore, and other corrosive environments. Additionally, advancements in metallurgy have led to the development of specialized alloys and coatings that provide enhanced corrosion resistance, extending the lifespan of hydraulic cylinders.
  2. Surface Treatments and Coatings: Various surface treatments and coatings have been developed to protect hydraulic cylinders from corrosion. These treatments can include electroplating, galvanizing, powder coating, and specialized corrosion-resistant coatings. These coatings create a barrier between the cylinder surface and corrosive elements, preventing direct contact and inhibiting the onset of corrosion. The selection of appropriate coatings depends on the specific application and environmental conditions.
  3. Sealing Technology: Effective sealing systems are crucial in preventing water, moisture, and contaminants from entering the cylinder and causing corrosion. Advancements in sealing technology have led to the development of high-quality seals and advanced sealing designs that offer superior resistance to corrosion. These seals are typically made from materials specifically engineered to withstand corrosive environments, ensuring long-term sealing performance and minimizing the risk of corrosion-related issues.
  4. Improved Surface Finishes: The surface finish of hydraulic cylinders plays a role in their resistance to corrosion. Advancements in machining and polishing techniques have allowed for smoother and more uniform surface finishes. Smoother surfaces reduce the likelihood of corrosion initiation and make it easier to clean and maintain hydraulic cylinders. Additionally, specialized finishes, such as passivation or chemical treatments, can be applied to further enhance corrosion resistance.
  5. Environmental Protection Features: Hydraulic cylinders can be equipped with additional features to protect against corrosion. These features may include protective boots, bellows, or shields that guard vulnerable areas from exposure to corrosive agents. By incorporating these protective elements into the design, hydraulic cylinders can withstand harsh environments and minimize the risk of corrosion-related damage.

In summary, advancements in hydraulic cylinder technology have significantly improved corrosion resistance. The use of corrosion-resistant materials, advanced surface treatments and coatings, innovative sealing technology, improved surface finishes, and the incorporation of environmental protection features have all contributed to enhanced durability and longevity of hydraulic cylinders in corrosive environments. These advancements ensure reliable performance and reduce the maintenance and replacement costs associated with corrosion-related issues.

hydraulic cylinder

How do hydraulic cylinders generate force and motion using hydraulic fluid?

Hydraulic cylinders generate force and motion by utilizing the principles of fluid mechanics, specifically Pascal’s law, in conjunction with the properties of hydraulic fluid. The process involves the conversion of hydraulic energy into mechanical force and linear motion. Here’s a detailed explanation of how hydraulic cylinders achieve this:

1. Pascal’s Law:

– Hydraulic cylinders operate based on Pascal’s law, which states that when pressure is applied to a fluid in a confined space, it is transmitted equally in all directions. In the context of hydraulic cylinders, this means that when hydraulic fluid is pressurized, the force is evenly distributed throughout the fluid and transmitted to all surfaces in contact with the fluid.

2. Hydraulic Fluid and Pressure:

– Hydraulic systems use a specialized fluid, typically hydraulic oil, as the working medium. This fluid is stored in a reservoir and circulated through the system by a hydraulic pump. The pump pressurizes the fluid, creating hydraulic pressure that can be controlled and directed to various components, including hydraulic cylinders.

3. Cylinder Design and Components:

– Hydraulic cylinders consist of several key components, including a cylindrical barrel, a piston, a piston rod, and various seals. The barrel is a hollow tube that houses the piston and allows for fluid flow. The piston divides the cylinder into two chambers: the rod side and the cap side. The piston rod extends from the piston and provides a connection point for external loads. Seals are used to prevent fluid leakage and maintain hydraulic pressure within the cylinder.

4. Fluid Input and Motion:

– To generate force and motion, hydraulic fluid is directed into one side of the cylinder, creating pressure on the corresponding surface of the piston. This pressure is transmitted through the fluid to the other side of the piston.

5. Force Generation:

– The force generated by a hydraulic cylinder is a result of the pressure applied to a specific surface area of the piston. The force exerted by the hydraulic cylinder can be calculated using the formula: Force = Pressure × Area. The area is determined by the diameter of the piston or the piston rod, depending on which side of the cylinder the fluid is acting upon.

6. Linear Motion:

– As the pressurized hydraulic fluid acts on the piston, it generates a force that moves the piston in a linear direction within the cylinder. This linear motion is transferred to the piston rod, which extends or retracts accordingly. The piston rod can be connected to external components or machinery, allowing the generated force to perform various tasks, such as lifting, pushing, pulling, or controlling mechanisms.

7. Control and Regulation:

– The force and motion generated by hydraulic cylinders can be controlled and regulated by adjusting the flow of hydraulic fluid into the cylinder. By regulating the flow rate, pressure, and direction of the fluid, the speed, force, and direction of the cylinder’s movement can be precisely controlled. This control allows for accurate positioning, smooth operation, and synchronization of multiple cylinders in complex machinery.

8. Return and Recirculation of Fluid:

– After the hydraulic cylinder completes its stroke, the hydraulic fluid on the opposite side of the piston needs to be returned to the reservoir. This is typically achieved through hydraulic valves that control the flow direction, allowing the fluid to return and be recirculated in the system for further use.

In summary, hydraulic cylinders generate force and motion by utilizing the principles of Pascal’s law. Pressurized hydraulic fluid acts on the piston, creating force that moves the piston in a linear direction. This linear motion is transferred to the piston rod, allowing the generated force to perform various tasks. By controlling the flow of hydraulic fluid, the force and motion of hydraulic cylinders can be precisely regulated, contributing to their versatility and wide range of applications in machinery.

China Custom 13-100t Rch Series Single Acting Hollow Plunger Hydraulic Cylinder   vacuum pump engine	China Custom 13-100t Rch Series Single Acting Hollow Plunger Hydraulic Cylinder   vacuum pump engine
editor by Dream 2024-04-26

China KET-RCH-306 RCH series single acting hollow plunger hydraulic cylinder with high quality

Condition: New
Warranty: 1 Year, 1 Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Construction works , Energy & Mining
Weight (KG): 21.8
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Hot Product 2019
Warranty of core components: 1 Year
Core Components: hydraulic cylinder
Standard or Nonstandard: Standard
Structure: Plunger Cylinder
Power: Hydraulic
Body Material: Steel
Product Name: Single acting hollow plunger hydraulic cylinder
Working Pressure: 700 bar
Capacity: 30T
Stroke: 155 mm
Return Type: spring return
MOQ: 1 Set
OEM: Available
Material: alloy steel
Certification: CE, ISO9001:2015
Packaging Details: Standard wooden box for single acting hollow plunger hydraulic cylinder

RCH series single acting hollow plunger hydraulic cylinder

Product NameRCH series single acting hollow plunger hydraulic cylinder
ModelKET-RCH-306
Max. Working Pressure700bar
Stroke155mm
Center Hole Diameter33.3mm
Weight21.8KG
Single acting hydraulic cylinder is widely used in power station, ship manufactury and maintenance, building, railway, mining, steel plants, petrochemical and other induries.Features:1. Single acting, spring return. 2. Backed enamel finish for increased corrosion resistance.3. Hollow plunger design allows for both pull and push forces.4. Collar threads for easy fixturing.5. Built-in scraper seal reduces contamination, extending cylinder life.6. 3/8”-18NPT coupler and dust cap included on all modles. Application Related Products Hydraulic Hand Pump Hydraulic Foot Pump Hydraulic Electric Pump About Us ZheJiang CZPT Machinery Manufacturing Co., Ltd. is a manufacturer in hydraulic tools, such as:• Hydraulic cylinders, jacks (5-1000ton), single acting and double acting, hollow plunger;• Hydraulic/ electric /pneumatic torque wrench (100-72000Nm);• Hydraulic bolt tensioner (100-11486NM); Hydraulic pullers (5-100 ton);• Hydraulic pumps, manual and electric type (max up to 3000bar);• Integrated hydraulic lifting system solutions (4-72 points lifting system for house translation or leveling, bridge supporting and tank welding supporting);• Hydraulic nut and couplings. (M50-Tr1000); Our products have been widely used in industrial field such as steel plant, cement industry, chemical and refinery, bridge, railway construction and maintenance. We successfully transformed from OEM manufacturer for Enerpac, Titan, to create our own brand KIET, and our factory has been approved by CE, ISO9001:2015 consecutively. Our customers includes many big Chinese industrial companies, such as China Petroleum, Baosteel, Sinopec, China State Grid, Xihu (West Lake) Dis. Shipyards, CZPT Group, China Railway Construction Corporation. Our synchronous PLC hydraulic system had played a great role in the China high-speed railway constructions. In 2011, our sales revenue reached 30 million USD, making us 1 of the leaders in the Chinese hydraulic cylinders market especially in the extra-high hydraulic cylinders for industrial area and construction field. Why Choose Us KIET provides 1 year guarantee for all the hydraulic products. We promise if there is any dysfunction of the hydraulic cylinder during the quality warranty not by outside force, we will replace a new 1 for free. Any quality defects reported by customers will be responded within 12 hours. Packing & Delivery
PackageWooden packing for each hdyraulic cylinder, which can perfectly protect them
ShippingExpress parcel, by air or by sea
Our warrantyWe guarantee our product for 1 year
Delivery time7-20 days after deposit received and all details have been confirmed
Payment Terms30% T/T, Balance before shipment
MOQ1 pcs
FAQ 1. What’s your delivery lead time?For stock items, delivery lead time is within 5 days. For items without stock, delivery lead time is usually within 10-30 days.2. What’s your warranty?Normal warranty is 1 year, but artificial damage and incorrect use is not included. We also offer life-long maintenance.3. Do you accept customer Logo and customization?Yes. We can do OEM & ODM.4. Are you manufacturer or trading company?We are leading manufacturer of hydraulic tools for over 25 years in China.5. Can you offer site service?Yes. We offer chargeable site service.

Hydraulic Cylinders and Their Components

Typically, a hydraulic cylinder is used in manufacturing machinery, construction equipment, civil engineering, and elevators. A hydraulic cylinder is also known as a mechanical actuator. A hydraulic cylinder is a type of mechanical actuator that is used to provide unidirectional force.hydraulic cylinders

Piston rod

Choosing the correct rod for hydraulic cylinders can improve the performance and dependability of the machine. While the diameter is always important, the length is also crucial. If the length of the rod is too short, it will crush or fail. On the other hand, if the rod is too long, it will become twisted or misaligned.
The rod seal is the most important seal in a hydraulic cylinder. It protects the cylinder from fluid leaks and system pollutants. It also handles gradual changes in system pressure.
There are many types of seals for hydraulic cylinders. Some of them are special and designed to work under intense pressure. These seals also have backup rings.
A piston rod can be either hollow or solid. It is usually made of steel or stainless steel. It is often coated with hard chrome plating. A polished surface is also an option.
Choosing the correct seal is a crucial step in ensuring the longevity of your piston rod. Rod seals are subject to the most harsh conditions. They need to be made from materials that are slow to wear and will not contaminate the cylinder.
The correct rod seal is also important in preventing fluid leaks. They also protect the cylinder from pressure extremes in the system. If the seal fails, the cylinder will be damaged. The seal is also important because it prevents system pollutants from damaging the rod.
A hydraulic cylinder can be single acting or double acting. Single acting cylinders have one pressurized chamber while double acting cylinders have two. Typically, double acting cylinders have a piston that is extended under hydraulic pressure and retracts under hydraulic pressure.

Piston seals

Choosing the correct hydraulic cylinder piston seal is important to the operation of a hydraulic cylinder. There are various types of seals that can be used to help ensure proper operation of a cylinder. They range from single-action to double-acting seals. The seal’s material and its profile affect its performance.
The materials used to make piston seals range from rubber to thermoplastic polyurethane. The material’s elasticity and strength are also important. Typically, plastic seals have more focus on adding strength to the cylinder than on flexibility.
Rubber seals are used when a higher degree of flexibility is required. They are also used when a higher degree of compressibility is required. Some rubber seals are designed to withstand higher temperatures.
Piston seals are made from a variety of materials, including Viton, nitrile rubber, and polytetrafluoroethylene (PTFE). PTFE piston seals have less friction, which is a good thing. A PTFE seal is also able to handle higher temperatures.
In order to properly seal a cylinder, the seal must maintain contact with the cylinder bore. This ensures that fluid does not flow past the piston. The seal’s profile must also leave a small amount of oil film when it passes along the cylinder bore.
Thermoplastic elastomers are designed to offer superior elasticity. They also stand up to abrasion and high use. They also exhibit unmatched performance at extreme temperatures.
A piston seal can be designed to meet various requirements, including the highest pressures that can be expected. Some manufacturers offer custom sealing solutions. These solutions include testing, according to the customer’s specifications. They can also include failure analysis and system investigations.
Thermoplastic elastomers are also designed to be resistant to tearing. In addition, they are able to maintain a constant pressure for a longer period of time than other materials.hydraulic cylinders

Mounting attachments

Using mounting attachments for hydraulic cylinders can reduce wear and tear on seals and bearings, and provide stability to the cylinder. There are three main groups of mounts: flange, lug, and clevis. Each style is designed for a different purpose. Choose the mount that is best for your hydraulic cylinder.
Flange mounts are a good choice for straight-line force-transfer applications. These mounts come in rectangular or square shapes and can be attached to the head or cap of a cylinder. They are very strong and are not prone to misalignment. They are also available in rod-end styles, which are recommended for tension applications.
Side lug mounts are used for small or light-duty hydraulic cylinders that require a straight-line force transfer. These mounts have lugs on the sides of the mount that are threaded to tie rods. These mounts are primarily used in confined spaces. The lugs can also be pinned on both sides of the mount to prevent movement of the cylinder. The lugs are also strong and can be used in high-pressure environments.
Clevis mounts are also used for arcing loads. They are primarily used on shorter stroke hydraulic cylinders. They can be mounted vertically or horizontally. They are usually used with a knuckle at the rod end of a cylinder. These mounts provide a single pivot point for mounting the cylinder.
Cylinder rod end attachments should be made from spherical bearings to minimize stress on the gland and piston rod. Ideally, they should be positioned as close as possible to the shoulder faces of the trunnion. They should also be threaded to tie rods for a secure connection.
The best mounting style for a hydraulic cylinder is an intermediate fixed-trunnion mount. This type of mount is a good choice for short stroke applications.

Common hydraulic cylinder components

Whether you are looking for a new hydraulic cylinder, or you are considering upgrading the hydraulic cylinders in your current machine, you need to understand the different components of a hydraulic cylinder. Cylinders are used in a variety of applications, including construction, mining, aircraft development, metal sheet shearing, and material handling.
A hydraulic cylinder is composed of two main components. These are the piston and the piston rod. The piston rod protrudes from the cylinder barrel and is attached to the piston inside the cylinder.
A hydraulic cylinder also has seals. These are used to prevent contaminants from entering the cylinder. They are made of many different materials, depending on the application. If the hydraulic cylinder will be operating at a high temperature, it may need a seal made of Viton. In contrast, a hydraulic cylinder operating at freezing temperatures may need a polyurethane seal.
Hydraulic cylinders are also designed to withstand a large amount of force, which means that they need to be able to withstand the pressure of the system. The pressure in the system must never exceed the rated design pressure of the cylinder.
Another important component of a hydraulic cylinder is the cylinder head. It is fitted with a rod gland seal, which encloses the pressure from the other end of the cylinder barrel. A hydraulic cylinder’s head can also be fitted with a check valve, which closes when the stem is clear.
A hydraulic cylinder’s head is also fitted with a rod bearing, which supports the weight of the piston rod. The rod bearing guides the piston rod through the rod gland, and prevents hydraulic oil leakage.
A hydraulic cylinder’s rod can be made from stainless steel or carbon steel. The rod is usually coated with hard chrome plating. The rod can also be made from corrosion-resistant materials, including Inconel.hydraulic cylinders

Common causes of hydraulic cylinder drift

Having a hydraulic cylinder that drifts is not only dangerous, but it can lead to a lot of repair work and costly replacements. Luckily, you can diagnose and fix this problem by performing a few simple tests.
The first step is to ensure that the cylinder is in good working order. It should be checked for general wear, corrosion, and speed. Also, it should be checked for leaks. If there are any leaks, you should fix them right away.
Another way to determine if a cylinder is drifting is to use a pressure gauge. The gauge should be used under controlled conditions to determine if the cylinder is drifting. If the cylinder moves, the problem is likely a leak. You should also check the rod seal.
When the rod seal leaks, it allows fluid to leak outside of the cylinder system. If it does not leak, it should stick to the rod when the rod stops moving. This will prevent a cylinder from drifting and maintain pressure.
The most common cause of hydraulic cylinder drift is a leak. A leak can occur in a number of ways, including through the piston seal or a leak in the holding or pressure release valves. If the leak is in the piston seal, it can lead to a hydraulic cylinder that drifts.
Another common cause of hydraulic cylinder drift is fluid contamination. When foreign particles combine with the fluid, the density can change and oil can seep past seals.
Hydraulic cylinders can experience other issues as well. If the cylinder has an oversized piston diameter, it can cause cylinder drift. A load control valve can also be a problem.
China KET-RCH-306 RCH series single acting hollow plunger hydraulic cylinder     with high quality China KET-RCH-306 RCH series single acting hollow plunger hydraulic cylinder     with high quality
editor by czh

China Good quality Rch Series Single Acting Hollow Plunger Hydraulic Cylinder Hydraulic Jack Cylinder near me shop

Product Description

 

RCH series single acting hollow plunger hydraulic jack cylinder

 

Feature of hydraulic cylinder

1.Hollow plunger design allows for both pill and push forces.

2.Single-acting spring return. 

3.Baked enamel finish for increased corrosion resistance. 

4.Collar threads for easy fixturing. 

5.stable quality ,lowest price and considerate service; 

6. Spindle possesses automatic retraction function; 

7. Painted surface corrosion and beautiful; 

8. The Hollow plunger cylinders allows for both pull and push forces. 

9. Every type contains a 3/8 fast connector.

 

Parameter of hydraulic cylinder

Item No. RCH-2050 RCH-25710 RCH-3050 RCH-35710 RCH-6050 RCH-65710 RCH-10075
Output(T) 20 20 30 30 60 60 100
Stoke(mm) 50 100 50 100 50 100 75
Effective area(cm2) 22.9 22.9 36.29 36.29 67.89 67.89 94.98
Oil Capacity(L) 0.16 0.32 0.25 0.5 0.45 0.9 1.2
Height of products(mm) 153 217 153 217 164 231 254
Extended height(mm) 214 328 214 328 225 342 340
Outside(mm) 98 98 115 115 155 155 180
Bore die(mm) 73 73 88 88 125 125 140
Principal Dia(mm) 54 54 68 68 93 93 110
Thead for input oil-port(ZG) 27 27 34 34 54 54 79

Saddle protrusion form  

plgr(mm)

3/8″ 3/8″ 3/8″ 3/8″ 3/8″ 3/8″ 3/8″
Weight(kg) 7.2 10 10 13.4 17.2 23.2 41

 

Applications of Spline Couplings

A spline coupling is a highly effective means of connecting 2 or more components. These types of couplings are very efficient, as they combine linear motion with rotation, and their efficiency makes them a desirable choice in numerous applications. Read on to learn more about the main characteristics and applications of spline couplings. You will also be able to determine the predicted operation and wear. You can easily design your own couplings by following the steps outlined below.
splineshaft

Optimal design

The spline coupling plays an important role in transmitting torque. It consists of a hub and a shaft with splines that are in surface contact without relative motion. Because they are connected, their angular velocity is the same. The splines can be designed with any profile that minimizes friction. Because they are in contact with each other, the load is not evenly distributed, concentrating on a small area, which can deform the hub surface.
Optimal spline coupling design takes into account several factors, including weight, material characteristics, and performance requirements. In the aeronautics industry, weight is an important design factor. S.A.E. and ANSI tables do not account for weight when calculating the performance requirements of spline couplings. Another critical factor is space. Spline couplings may need to fit in tight spaces, or they may be subject to other configuration constraints.
Optimal design of spline couplers may be characterized by an odd number of teeth. However, this is not always the case. If the external spline’s outer diameter exceeds a certain threshold, the optimal spline coupling model may not be an optimal choice for this application. To optimize a spline coupling for a specific application, the user may need to consider the sizing method that is most appropriate for their application.
Once a design is generated, the next step is to test the resulting spline coupling. The system must check for any design constraints and validate that it can be produced using modern manufacturing techniques. The resulting spline coupling model is then exported to an optimisation tool for further analysis. The method enables a designer to easily manipulate the design of a spline coupling and reduce its weight.
The spline coupling model 20 includes the major structural features of a spline coupling. A product model software program 10 stores default values for each of the spline coupling’s specifications. The resulting spline model is then calculated in accordance with the algorithm used in the present invention. The software allows the designer to enter the spline coupling’s radii, thickness, and orientation.
splineshaft

Characteristics

An important aspect of aero-engine splines is the load distribution among the teeth. The researchers have performed experimental tests and have analyzed the effect of lubrication conditions on the coupling behavior. Then, they devised a theoretical model using a Ruiz parameter to simulate the actual working conditions of spline couplings. This model explains the wear damage caused by the spline couplings by considering the influence of friction, misalignment, and other conditions that are relevant to the splines’ performance.
In order to design a spline coupling, the user first inputs the design criteria for sizing load carrying sections, including the external spline 40 of the spline coupling model 30. Then, the user specifies torque margin performance requirement specifications, such as the yield limit, plastic buckling, and creep buckling. The software program then automatically calculates the size and configuration of the load carrying sections and the shaft. These specifications are then entered into the model software program 10 as specification values.
Various spline coupling configuration specifications are input on the GUI screen 80. The software program 10 then generates a spline coupling model by storing default values for the various specifications. The user then can manipulate the spline coupling model by modifying its various specifications. The final result will be a computer-aided design that enables designers to optimize spline couplings based on their performance and design specifications.
The spline coupling model software program continually evaluates the validity of spline coupling models for a particular application. For example, if a user enters a data value signal corresponding to a parameter signal, the software compares the value of the signal entered to the corresponding value in the knowledge base. If the values are outside the specifications, a warning message is displayed. Once this comparison is completed, the spline coupling model software program outputs a report with the results.
Various spline coupling design factors include weight, material properties, and performance requirements. Weight is 1 of the most important design factors, particularly in the aeronautics field. ANSI and S.A.E. tables do not consider these factors when calculating the load characteristics of spline couplings. Other design requirements may also restrict the configuration of a spline coupling.

Applications

Spline couplings are a type of mechanical joint that connects 2 rotating shafts. Its 2 parts engage teeth that transfer load. Although splines are commonly over-dimensioned, they are still prone to fatigue and static behavior. These properties also make them prone to wear and tear. Therefore, proper design and selection are vital to minimize wear and tear on splines. There are many applications of spline couplings.
A key design is based on the size of the shaft being joined. This allows for the proper spacing of the keys. A novel method of hobbing allows for the formation of tapered bases without interference, and the root of the keys is concentric with the axis. These features enable for high production rates. Various applications of spline couplings can be found in various industries. To learn more, read on.
FE based methodology can predict the wear rate of spline couplings by including the evolution of the coefficient of friction. This method can predict fretting wear from simple round-on-flat geometry, and has been calibrated with experimental data. The predicted wear rate is reasonable compared to the experimental data. Friction evolution in spline couplings depends on the spline geometry. It is also crucial to consider the lubrication condition of the splines.
Using a spline coupling reduces backlash and ensures proper alignment of mated components. The shaft’s splined tooth form transfers rotation from the splined shaft to the internal splined member, which may be a gear or other rotary device. A spline coupling’s root strength and torque requirements determine the type of spline coupling that should be used.
The spline root is usually flat and has a crown on 1 side. The crowned spline has a symmetrical crown at the centerline of the face-width of the spline. As the spline length decreases toward the ends, the teeth are becoming thinner. The tooth diameter is measured in pitch. This means that the male spline has a flat root and a crowned spline.
splineshaft

Predictability

Spindle couplings are used in rotating machinery to connect 2 shafts. They are composed of 2 parts with teeth that engage each other and transfer load. Spline couplings are commonly over-dimensioned and are prone to static and fatigue behavior. Wear phenomena are also a common problem with splines. To address these issues, it is essential to understand the behavior and predictability of these couplings.
Dynamic behavior of spline-rotor couplings is often unclear, particularly if the system is not integrated with the rotor. For example, when a misalignment is not present, the main response frequency is 1 X-rotating speed. As the misalignment increases, the system starts to vibrate in complex ways. Furthermore, as the shaft orbits depart from the origin, the magnitudes of all the frequencies increase. Thus, research results are useful in determining proper design and troubleshooting of rotor systems.
The model of misaligned spline couplings can be obtained by analyzing the stress-compression relationships between 2 spline pairs. The meshing force model of splines is a function of the system mass, transmitting torque, and dynamic vibration displacement. This model holds when the dynamic vibration displacement is small. Besides, the CZPT stepping integration method is stable and has high efficiency.
The slip distributions are a function of the state of lubrication, coefficient of friction, and loading cycles. The predicted wear depths are well within the range of measured values. These predictions are based on the slip distributions. The methodology predicts increased wear under lightly lubricated conditions, but not under added lubrication. The lubrication condition and coefficient of friction are the key factors determining the wear behavior of splines.

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