How To Maintain The Uncoiler

Uncoiler, also known as decoiler, material rack, loading rack, unwinder machine, etc., is an indispensable unwinding device for metal coil to be stamped processing. Like the feeder, it is also a product that must be used on the factory workshop. It is suitable for the continuous stamping processing industry of various auto parts, hardware and electronic parts. We know a lot about several decoilers, and different uncoiler machines have different characteristics.

The decoiler/uncoiler plays a vital role in the cutting production line, pressing production line and various metal production lines. In order to allow it to be used for a longer period of time, we need to pay more attention to daily maintenance. Here are some useful tips.

1. Grease the decoiler/uncoiler mandrel regularly.

2. It is best to expand the coil within the acceptable parameters.

3. Check whether the core rod of the decoiler/uncoiler is stuck or abnormal before starting up.

4. Operate the uncoiler correctly according to the instructions and safety regulations.

5. When abnormal noise is heard, stop the uncoiler immediately.

6. In the metal production line, every operator in charge of different machines must cooperate closely.

 

Advantages of decoiler:

 

The decoiler is suitable for conveying various coil materials. Thin thin metal and non-metal materials can be equipped with motor power and feeding device. The brake device is adjustable and the main shaft is reinforced, which makes the rolling of the material roll more stable and increases its carrying capacity. It can automatically produce indispensable parts with the punching machine, saving manpower, material resources, and reducing costs. The effect is very good.

Uncoiler machine can save feeding time and improve production efficiency. It can be used with the calibration machine. It can be equipped with a motor and electrical control instead of a power frame.

 

 

Safety Features

 

Safety is a major concern on the shop floor as coils have become larger and heavier. Uncoilers have large, fast-moving parts, so operators must be trained on how the machine works as well as its correct setup.

Coils today can range from 33 to 250 kilopounds per square inch, and the uncoiler has been adapted to meet the demands in the yield strength of the coil. Heavier coils present bigger safety challenges especially when cutting the strap. Hold-down arms and snubber rolls are included on the machine to ensure the coil unwinds only on demand. The machine also can include feed-up drives and a side shift base to help centre the coil for the next process.

As coils get heavier, it becomes much harder to expand the mandrel manually. Hydraulic expanded mandrels and rotation capabilities are commonly requested as shops move operators away from the uncoiler for safety reasons and into other areas of the shop floor. Shock absorbers can be added to minimize uncoiler rotational abuse.

Depending on the process and speed, additional safety features might be required. These features include an outward coil retainer to prevent the coil from falling down, a monitoring system for the OD and RPM of the coil, and a unique braking system like water-cooled brakes for lines running at high speeds. These are all important to help ensure that when the roll forming process stops, the uncoiler also stops.

We are Uncoiler machine suppliers. Please feel free to contact us if you are interested in our products.

Pneumatic & Electric Ball Valve - How They Work

 Ball valves can be combined with a pneumatic actuator (pneumatic ball valves) or an electric actuator (electric ball valves) for automation and/or for controlling remotely. Depending on the application, automating with a pneumatic actuator vs an electric one may be more advantageous, or vice-versa. In this article, we will compare the two options. 

• Table of Contents
• Ball valve overview
• Actuator overview
• Pneumatic actuators
• Electric actuators
• Combining an actuator and a ball valve

 

Ball valve overview

 

 

A ball valve is a quarter-turn valve that controls the flow of a media by having a hollow rotating ball, as seen in Figure 2. The figure shows the main components of a manual ball valve in a sectional view. When the hollow portion of the ball is in line with the flow (pipe or hose), the valve is open and the media can flow through. The valve closes when the solid portion of the ball is in line with the flow, which is done with a 90-degree rotation (hence the name quarter-turn valve) of the ball.

It is also possible to position the valve between fully open and fully closed, which allows you to regulate the flow more precisely. Typical ball valves have two ports, one for an inlet and one for an outlet. However, three ports (L or T) are also available, and depending on how the valve is assembled and installed will determine how the 90-degree rotation of the ball directs the media flow. Four-port ball valves are possible but rare.

Ball valves have a valve stem, which is attached to the ball and controls its rotation. In Figure 2, the valve stem is connected to a manual handle to actuate the valve. However, the valve stem can also be connected to a pneumatic or electric rotary actuator to spin the stem to open and/or close the ball valve automatically and/or remotely.

 

Actuator overview

A valve actuator is a device that is used to remotely control a valve. If it controls a quarter-turn valve, the actuator is known as a quarter-turn actuator. Instead of a manual lever, you can mount an actuator on the valve to automatically and/or remotely control it. Actuators use a power source to generate the torque that is required to operate (rotate) a ball valve. For most actuators, the power source is either pneumatic, electric, or hydraulic (not discussed in this article). The difference in this power source makes different designs, which each have different advantages and disadvantages for certain applications (discussed below). Aside from the torque generating component, an actuator may have other features such as position indicators and manual override.

 

Pneumatic actuators

Pneumatic actuators control ball valves by the conversion of compressed air energy to mechanical motion. A rotary mechanical motion is required in a ball valve for a 90 degrees turn. Pneumatic actuator ball valves can be single-acting or double-acting. A single-acting pneumatic actuator uses a single compressed air input to turn the valve and a spring to return the valve to the normal position. A double-acting pneumatic actuator has two compressed air inputs to turn the valve and return the valve to the original position.

 

Operating principle

The most common mechanism for a pneumatic actuator for ball valves is the rack and pinion mechanism. This comprises of the rack (a linear gear) and the pinion (a circular gear) (figure 4). The rack is attached to a piston which is pushed by compressed air to achieve linear motion. This linear motion is converted to circular motion by the pinion. The pinion drives the stem of a ball valve to open and close positions.

To control the pneumatic actuator for ball valves, the compressed air is regulated by solenoid valves. Electrical signals from the controller energize the solenoid valve to either open or close positions allowing compressed air to flow through to both piston sides of the pneumatic actuator. The piston pushes the rack which turns the pinion connected to the stem of the ball valve.

 

 

Electric actuators

Electric actuators convert electrical energy into rotary force by the use of an electric motor to turn the ball valve through 90 degrees. They are energy-efficient, clean, and a quiet method of valve control. The electric motor can be powered by an alternating current (AC) or a direct current (DC). It is housed in a robust, compact housing that also contains other components of the actuator such as gearings, limit switches, wiring, etc. The whole assembly is connected to a valve through a compatible connection interface.

 

Operating principle

The electric motor generates a torque, which is transmitted by a shaft connected to the valve stem. This rotates the ball valve. To achieve the required torque, a system of gears is connected to the electric motor shaft. The torque capacity is an important specification for selecting an actuator. It must be higher than the required torque (breakaway torque) to turn the ball valve by a certain percentage often specified by the ball valve manufacturer. The breakaway torque is the minimum torque required to turn the ball valve usually in the fully closed or fully open static positions.

The speed of operation (the response time) of an electric actuator is inversely proportional to the torque of the actuator. The gear system defines the relationship between speed and torque. A higher gear ratio would result in more torque but a lower response time.

Electric actuators can be powered from a 12, 24, and 48V direct current and 24, 48, 120, 130, and 240V alternating current. Limit switches are installed to stop the current to the motor when fully closed and open. Electric motors can be used to carry out modulating control. This is used to accurately position the valve at any point between fully opened and fully closed positions (i.e. between 0° and 90°). This is useful for regulating the flow rate through the valve. A positioning circuit board (PCB) is installed in the electric actuator to modulate the electric motor. 

 

Combining an actuator and a ball valve

Although actuators and ball valves are separate components, they are most often used together. Therefore, it is more convenient to get them as a package to ensure conformity. Combining an actuator with a ball valve gives you an automatic ball valve that can be controlled remotely. The actuator and the ball valve have a connection interface to connect them. The connection interface comprises of a shaft, or stem, to connect the valve ball, and a flange to bolt the actuator to the valve. This interface may be brand-specific or standardized to standards. You can mount a brand-specific actuator on a compatible brand-specific valve. On the other hand, different ball valves and actuators can be interchanged as long as they follow the same standard.

 

Comparison between pneumatic and electric ball valves

The following are some of the comparable features of pneumatic and electric ball valves:

1) Rotation speed
The rotation speed is the speed at which the ball of an actuated ball valve makes a complete rotation (90-degrees). Typically for the same size units, the rotation speed of an electric ball valve is lower than that of a pneumatic ball valve.

2) Life span
The life span of equipment is the time that the unit is fully functional and operational. Pneumatic ball valves have fewer components and are easier to maintain; hence they have a longer life span than their electric counterparts. Electric actuators have several components that need maintenance, like the electric coil, electronic driver, mechanical actuator, etc.

3) Precision
Precision, or modulation, is for units that stop at a partially open point (i.e. 20-degrees open) to more accurately regulate the flow. Both pneumatic and electric actuators are precise in operation, but motorized ball valves have higher levels of precision. An electric ball valve is capable of opening and closing by very precise degrees. Pneumatic actuators carry out modulation by controlling the air pressure at the inlet port. Leaks or pressure fluctuations can easily affect the valve’s position. Electrical actuators, on the other hand, use exact electrical control signals to carry out control. Additional information can be found in our electrical modulating ball and butterfly valves article.

4) Energy consumption
Energy consumption is the energy required by the actuator to rotate the valve. In comparison, the energy consumption of an electric operated ball valve is less than pneumatic actuated ball valves. In pneumatic actuators, the entire air compression system (compressor, filters, lubricators, power, etc.) accounts for their high energy consumption.

5) Fail-safe
This is a safety feature designed to automatically open or close a valve in case of a power failure. It is typically easier and cheaper to feature a fail-safe mechanism on a pneumatic ball valve than on a motor actuated ball valve. Pneumatic acting actuators are very common and make use of a spring to return to the base position and are ideal as a fail-safe solution. Electric actuators with a fail-safe mechanism can operate with a battery or a spring and are usually more expensive than the pneumatic solution.

6) Cost
The cost of a pneumatic ball valve is usually lower than an electric one because the actuator design is less complex. However, this doesn’t take into account the costs of the components of the pneumatic system, such as the compressor, air preparation, pipes, etc. When no pneumatic system is available near the valve, usually electric actuation is preferred. The operation of a pneumatic valve is more expensive in the long run due to the higher energy consumption and energy losses that are a result of generating compressed air.

7) Position feedback
Position indicators indicate the position of the actuator at any given time. They are usually placed atop the actuator for high visibility. Most pneumatic actuators can be equipped with a limit switch on top for electrical feedback. Many electrical actuators have internal limit switches for position feedback. However, more basic actuators do not have this feature.

8) Size/torque range
Torque is the rotary force a ball valve requires to turn. Pneumatic actuators offer a much higher torque per unit size than electric actuators. Therefore, for applications requiring a large valve or high torque typically a pneumatic ball valve is a better option.

9) Hazardous conditions
An electric ball valve has to be NEMA/ATEX certified before it can operate in hazardous conditions. Pneumatic actuators, however, are more widely available with ATEX certification. Also, they neither generate nor are affected by electromagnetic disturbance. Unlike their electric counterparts, pneumatic actuators are not sensitive to wet environments, neither are they subject to overheating.

What Are Hydraulic Hose Rotary Joints?

 

Hydraulic hose rotary joint

 

Most hydraulics engineers are well aware that proper hose routing often means accommodating machine motion without overly stressing the hose, or letting it rub and abrade against other hoses or machine components. Otherwise, hose can prematurely fail, resulting in leaks, machine damage, downtime, costly environmental contamination and, potentially, a hazard to nearby personnel.

 

Swivel-type fittings are designed to allow the coupling and hose connection to rotate, which prevents twisting, kinking and excessive bending. That can extend hose life and reduce maintenance needs. It can also make for more efficient system plumbing. Using rotary joints can reduce the length of hose required between connections, eliminate the need for bent tubing to accommodate angled connections, and often can be connected directly to the hose line without adapters. Because swivel joints move, they can compensate for hose length changes when the system pressurizes and absorb hydraulic surges and shocks in a line.

 

Thus, many applications can benefit from the use of hydraulic hose rotary joints. These components permit an extensive range of articulation and movement in equipment operation and eliminate torque and twisting in hydraulic hoses. They can also simplify hose installation and maintenance.

 

Components

They consist of two major components, a stem and housing that can rotate relative to one another, as well as internal seals and bearings. Depending on the design, rotation can be unrestricted or somewhat less than 360°. Some rely on ball bearings to control movement, others have so-called ball-less designs with plain thrust bearings.

 

Types

Two basic types are in-line, where the opposing stem and housing fluid ports lie on a common axis; and 90° swivels, where the housing's fluid port is positioned to rotate on a plane 90° to the stem axis.

 

Hydraulic hose rotary joint

 

Applications

They are built to handle high pressures - often in excess of 5,000 psi - offer leak-free performance, resist hydraulic shock and side loads, and won't pull apart in operation. Over time the seals, back-up rings or bearings can eventually wear out, but many designs permit simple repair with seal replacement kits.

 

The swivel or hose should be mounted to the machine structure to ensure proper alignment and freedom of movement. While rotary joints are typically designed to allow free rotation with minimal friction, engineers should be aware that the weight of the attached hose, tubing or fittings - as well as the weight of the contained hydraulic fluid - may be substantial enough to place excessive side loads or bending moments on the swivel. The connection must be specified to handle such loads, or the seals may prematurely wear and leak. Side loading also causes excessive wear on the bearing surfaces and inhibits smooth swivel joint operation.

 

Hydraulic swivels are used in a wide range of rotary applications. Typical examples include grapples, forestry attachments, lift cranes and utility boom trucks, railroad maintenance equipment, demolition shears, and mobile excavators. And in this IoT era, special hydraulic rotary joints can be combined with electrical slip rings to transfer power or data signals. In addition to simple hydraulic swivels, a number of companies make rotary unions and rotating manifolds that transmit fluid from a single housing to multiple lines.

 

Design parameters

As with any other hydraulic component, engineers should consider a number of important design parameters. Swivel housings are available in steel and stainless steel, brass, aluminum and other common materials. Fluid compatibility with the specified materials is, of course, a must, and typical seal options include nitrile, ethylene propylene, neoprene and fluoroelastomer, to name a few.

 

Hydraulic hose rotary joint

 

Other considerations include pressure rating, internal flow characteristics and pressure losses, permissible rotational speed and torque requirements, SAE or ISO fluid ports options, and the ability to handle a range of ambient and fluid temperature ratings.

Many designs have an external exclusion seal to prevent ingression of contaminants, but it's always recommended to protect the swivel from dirt and abrasives whenever possible. For operation in harsh or corrosive conditions, a protective cover or elastomeric bellows are possible options.

 

And almost always, price is an important consideration. The cost of a rotary joint can be more than offset by cost-reduction benefits such as greater system design flexibility, improved system routing with less hose, simpler and quicker installation, fewer adapters and tube fittings, and longer service life.

 

We are a hydraulic hose rotary joint supplier. If you are interested in our products, please contact us now!

How Does a Swivel Joint Work?

 

 

Swivel Joints come in various shapes and sizes based upon the application and the environment where it goes through. While style consideration needs to be provided to outside elements, all the swivel joints have 2 primary components: a shaft as well as real estate.

The idea behind a swivel allows the shaft to rotate while the real estate remains fixed-ready. The shaft has actually pierced holes of varying size and also depth beginning with its leading surface area. Variable opening midsts, as well as markings, define the circulation path of fluid within the swivel. Via inner design, the fluid is performed the shaft right into and also out of the swivel joint.

The real estate system includes machined flow as well as grooves to assist in liquid transfer within the swivel and also protect against cross leakages. Phoned number markings are found on the real estate outer diameter surface area and also the same can be discovered on the leading surface area of the shaft.

These numbers specify where an individual would anticipate the fluid to move in/out in between shafts as well as real estate via the machined inner passages. A collection of very carefully selected inner elements are fitted between the shaft as well as real estate at specified locations. These include seals, breaks rings, O rings, wearings, tiny bearings in specific applications.

The choice of interior parts is of vital importance while designing a swivel joint as severe interest needs to be given to the tolerances as well as the inner layout of the real estate grooves. Failing to comply with the advised layout and also machining requirements leads to leaking elements.

The flow of power, as well as signals, are sometimes required for particular applications and industries. Slide rings can be incorporated with the swivel joint via passing electrical cable televisions within the hollow inner size of the shaft.

 

Exactly how to Select a Swivel Joint?

 

In contrast to various other rotary parts in the exact same industries, a swivel joint mostly endures interior loads while functional. This is a direct outcome of pressurized fluid flowing within its interior components. To pick an appropriate swivel joint, multiple influencing factors should be thought about.

The most influencing element on a swivel joint is the inner securing option between the shaft and also housing. Really precise tolerances have to be preserved during the machining phase to create the required grooves for seals as well as inner elements to be fit.

Seals, o-rings, use rings, and bearings are inserted within these internal grooves and have to be able to endure the pressures caused by the fluid Swivel joints are rated by the manufacturer regarding their recommended operating pressures, temperatures, and speeds.

These values are directly associated with the interior elements requirements, geometric machining tolerances, and type of liquid used the substantial layout as well as area factors to consider the need to be given for a swivel joint and its ports.

Based on application needs, a swivel joint might have up to 9 different ports to provide fluid with various flows. A greater variety of paths result in substantial dimension as well as product boost.

Swivel joints can be customized in dimension as well as port dimensions with respect to application requirements. Space constraints, lots requirements, task cycle, as well as environmental surroundings are all variables that are taken into consideration while choosing an appropriate part

 

We are a swivel joints supplier, please contact us if you need them.

The Ultimate Guide to Select Swivel Joints

 

Swivel Joint

 

What is a Swivel Joint?

Swivel joints, also known as rotary unions are used in applications where a constant transmission of fluids from a stationary source to a rotating source is required without cross-contamination or leakage. Typical applications use swivel joints to allow for 360-degree rotation while preserving hoses from getting tangles as components turn. In return, mechanical stresses that would result from hose twisting, bending, and stretching can be relieved.

Swivel joints are engineered to operate at a wide range of pressure and temperature for a variety of conditions and environments. Based on industry requirements, the swivel joint can be designed to have multiple passages and can transfer different types of fluid simultaneously at various rotational speeds. Typically, as the number of passages increases, the size increases, and speed will be lower.

 

How Does a Swivel Joint Work?

Swivel Joints come in different shapes and sizes based on the application and the environment where it is subjected to. While design consideration should be given to external factors, all the swivel joints have two main components: a shaft and housing.

The concept behind a swivel allows the shaft to rotate while the housing remains stationary in position. The shaft has drilled holes of varying size and depth starting from its top surface. Variable hole depths and markings define the flow path of fluid within the swivel. Through internal design, the fluid is carried through the shaft into and out of the swivel joint.

The housing unit includes machined passage and grooves to facilitate fluid transfer within the swivel and preventing cross leaks. Numbered markings are found on the housing outer diameter surface and the same can be found on the top surface of the shaft.

These numbers define where a user would expect the fluid to flow in/out between shaft and housing through the machined internal passages. A series of carefully selected internal components are fitted between the shaft and housing at specified locations. These include seals, snaps rings, O rings, wearings, small bearings in certain applications.

The selection of internal components is of vital importance while designing a swivel joint as extreme attention has to be given to the tolerances and internal design of the housing grooves. Failure to adhere to the recommended design and machining requirements results in leaking components.

Passage of power and signals are sometimes required for particular applications and industries. Slip rings can be integrated with the swivel joint through passing electric cables within the hollow inner diameter of the shaft.

 

How to Select a Swivel Joint?

As opposed to other rotary components in the same industries, a swivel joint mostly endures internal loads while operational. This is a direct result of pressurized fluid flowing within its internal components. To select an appropriate swivel joint, multiple influencing factors must be considered.

The most influencing factor on a swivel joint is the internal sealing solution between the shaft and housing. Very precise tolerances must be maintained during the machining phase to create the required grooves for seals and internal components to be fit.

Seals, o-rings, wear rings, and bearings are inserted within these internal grooves and must be able to withstand the pressures induced by the fluid Swivel joints are rated by the manufacturer as to their recommended operating pressures, temperatures, and speeds.

These values are directly related to the internal components specifications, geometric machining tolerances, and type of fluid used significant design and space considerations must be given for a swivel joint and its ports.

Based on application requirements, a swivel joint may have up to 9 different ports to supply fluid through different passages. A higher number of passageways result in significant size and material increase.  

 

Swivel Joint

 

Swivel joints can be modified in size and port sizes with respect to application requirements. Space restrictions, load requirements, duty cycle, and environmental surroundings all factors that are considered while selecting an appropriate component

Based on the requirement provided Slewmaster will be able to provide the best solution that suits the application.

In most cases, our standard in-stock swivels can be modified to fit into your application, and if required Slewmaster can provide a custom-built swivel that suits your needs. Further, Slewmaster can also cross-reference other manufacturers' Swivel Joint and provide an equivalent solution.

 

What are the Different Applications That Use Swivel Joints?

Due to a wide range of custom modifications that can be applied on a swivel joint, it can be found across many applications. Vacuum trucks and cranes that require their booms to rotate 360 degrees using a slew drive run into the problem of hose bending and tangling.

Introducing swivel joints to the system creates a smooth fluid flow for continuous rotation. Bottling lines use swivel joints to deliver fluid across to the different end locations. Design considerations are given to the different fluid viscosities to determine operating pressure requirements.

Farming and agricultural equipment utilize swivel joints in several ways including herd feeding and waste recycling. Welding and robotic arms often require electric passage and slip rings are used to allow for mobility and electric transmission.

 

How is a Swivel Joint Mounted?

Inspect the swivel joints and make sure that all the connections and passages are clean and free from any physical damage during shipment.

A flexible connection/ hose should always be used while installing a Swivel joint. While mounting the Swivel Joint, ensure that either shaft or housing are mounted in a manner that allows for some movement in order to accommodate any misalignment or run-out during rotation. It is recommended to fasten an anti-rotation arm to the stationary part of the rotary union.

When mounting the shaft and the housing make sure that pipe thread sealant is used on fittings and the fitting is properly tightened. For proper functioning of a swivel, it is required to ensure that the mounting flange or surface should be concentric to the axis of the swivel assembly.

After all, fittings are installed bolt the assembly down using the mounting flange or tapped holes provided on the swivel joint. It is recommended to perform a dry run after the swivel is installed to ensure proper mounting of the swivel joint assembly and to verify that there is an unintended movement of the swivel joint due to misalignment.

High pressure selected seals and internal components contain the fluid from leaking out of the closed system. If any leakage is found around any surfaces of the swivel joint, the manufacturer must be alerted immediately.

How To Maintain High Speed Rotary Union To Extend Service Life？

 

High Speed Rotary Union

 

High-speed rotary union is a type of rotary joint. High-speed rotary joints are used for high-speed interface transmission media. High-speed rotary joints are different from ordinary rotary joints, so you must pay special attention to them during normal use. Now let's take a look at the daily maintenance of high-speed rotary joints.

 

Maintenance Methods

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1. Sealing surface

Check the wear condition and thickness change of the sealing surface (generally, the normal wear is 5-10mm); observe the friction track of the sealing surface to see if there are three-point discontinuity or scratches. If these problems occur, don't hesitate to replace the rotary joint immediately.

2. Clean regularly

Special attention should be paid to the inside of the rotary joint drum and pipeline, and a filter should be added when necessary. This is because many foreign objects will cause strong wear on the rotary joint, and frequent cleaning can effectively extend the service life of the rotary joint.

3. Long-term non-use

If the general machine is not used for a long time, it will cause scaling and rust inside the rotary joint. If it is used suddenly, it will get stuck or drip.

4. Regular oil injection

The oil injection device should be oiled regularly to ensure the reliability of the rotary joint bearing operation. Rotary joints that circulate heating medium should gradually generate temperature to avoid sudden temperature changes.

 

Tip: Generally, after the high speed rotary union is used, a lot of small deposits will appear. In this case, if the machine stops running, the rotary joint must be folded down for cleaning, and stored properly, and then installed when the machine needs to run. This method can significantly increase the service life of the high speed rotary union.

 

Swivel Joint

 

Additional Advice

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ㆍA prolonged shutdown of the equipment will result in rust damage to the rotary joint, which will become stuck or leak when the machine is started.

ㆍWhen the rotary shaft rotates, the concentricity is too low, it should stop operation immediately and be replaced in time to prevent accidents and injuries.

ㆍThe medium outlet of rotary joint must use hose, Txuan recommended to choose flexible metal bellows.

ㆍIf fittings (valve,filter) are needed at the outlet of the rotary joint, they can be added to the pipe at the back of the hose .

ㆍInstall a fixed support device to ensure the swivel is swinging.

ㆍIn the installation and design of the inner tube fixed rotary joint, attention should be paid to the inner tube and outer tube rotation, because there are left and right rotation.

ㆍSelect the matching rotary joint according to the working condition（such as Media, Size, Temperature, Speed, Connection type, Direction of rotation, etc ）

ㆍThe inner tube of the rotary joint should be selected at an appropriate length, considering the weight and siphon effect of the rotary joint.

ㆍWhen using threaded swivel joints, pay attention to the specification of the thread and the length of the shaft head.

ㆍWhen the device is running without medium, do not run for long time.

 

We are a high speed rotary union supplier, please feel free to contact us if you need them.

BRIEF INTRODUCTION OF SWIVEL JOINT

Relying on the advantages of industry experts and high-quality production capacity, Changsong industrial fluid division is specialized in the development, design, production and manufacturing of industrial machinery, and has long served the industries of electric power, steel, petroleum, chemical industry and large-scale equipment plants. Main products: mechanical seals, hydraulic equipment, environmental protection equipment, steel continuous casting machine manufacturing and repair, rotary joint, metal seal, rubber seal, high and low voltage distribution cabinet, metal hose, cable protection pipe, cable joint, bellows, compensator, etc., and undertake the installation and maintenance of metallurgical, electrical machinery and equipment.

 

Changsong industry is an important partner of primetals (formerly Siemens VAI). It absorbs and integrates the corporate culture and business philosophy of primetals. It takes quality and safety as the gene, customer value as the guide and customer trust as the goal. It takes various ways such as emergency supply, on-site service and joint venture to meet customers' needs in an all-round way.

 

We sincerely hope to establish good faith interaction, win-win cooperation, mutual benefit and long-term friendly cooperation with our customers.

 

Business range

Serving your needs in the steel industry

Providing quality and economic hydraulic parts

Meeting your demands of advanced instruments

 

Cooperative analysis

1. Advantage

1.1 Optimize cost and substitute other imported brand pipe fittings

1.2 The quality of pipe fittings and equipment is stable and the production is controllable

1.4 Solve the emergency needs, special needs and flexibility

1.3 Recover equipment investment in short term and form long-term supporting capacity

2. Inferiority

At the beginning, we need to understand and trust each other

3. Opportunity

3.1 Make full use of Changsong's global and multi brand supporting service capability of emergency, special, small batch and imported parts in the field of industrial metallurgy

4. Threaten

4.1 The cost may change due to the fluctuation of raw materials

 

CSIEQUIPT-High speed rotary union is mainly used in electric power, steel, petroleum, chemical and large equipment factories. It has strong sealing, more wear-resistant than ordinary joints, and short delivery time. Welcome to contact us.

 

Related news:How To Maintain High Speed Rotary Union To Extend Service Life？