Item Description

Solution Description

Guarantee:1 A long time


Customized help:OEM

Location of Origin:ZHangZhoug, China

Model Variety:PF-20-two




Head Code:hexagon

Item identify:mini rapid coupler




Identify:Swift Launch Coupling

Certificate:ISO 9001:2008

Utilization:Becoming a member of Pipe Traces

Thread:M5, 1/8, 1/4, 3/8, 1/2, 3/4

In depth Photographs



Business Profile

RIXIN BRASS FITTING CO.,LTD founded in 1991 . The manufacturing unit is a non-public company covering the comprehensive process of design and style , manufacture,marketing and advertising and services.
In addition to our cooper parts largely used in pneumatic and hydraulic fields , we have created pu air tubes ,small ball valves,fast couplings,and so on.
Expert generation gear
The factory has 5 manufacturing line,far more than 100 employees. Cutting workshop make the brass raw material into acceptable duration. Right after cutting some content deliver to Instrument lathe workshop and CNC workshop ,some of content deliver to punch workshop processed into the shape which we need to have. our CNC operate store Creates the merchandise precision can be controlled in the error of .01 mm. And punch workshop can make items according to your required . The Assembly store with automatic gear , Decrease the mistake of the product. PU tube workshop using European automation tools,and clear management.
Prosperous processing encounter
Our engineers team with abundant encounter in production line, an typical of more than ten many years of knowledge in apply
Every yr more than a thirty day period of study and communication It is our declare to the engineer.we have the modern warehouse administration to ensure that the appropriate inventory to promise the shipping and delivery time, through the information management to decrease the warehouse cost, make items with aggressive value.
Occupation layout team
We have our own solution design crew, and packaging design group.Assist us to make the items match your market place , and assist you acquire the market. we can make your symbol on products and make the packaging with your symbol or your design and style .
Rigid good quality handle
Each products we create with rigorous inspection far more than 2 moments ahead of packaging. We have a total set of inspection gear,to do Pressure take a look at and temperature examination,some of merchandise will do the toughness take a look at.To make certain each items with good good quality

Our Positive aspects

one. ISO9001:2000 and TS16949 certificated.

2. OEM accessible.

3. More than twenty many years of sales and manufacture encounter.

four.a hundred% take a look at for air stress and inspection for item look prior to cargo.

5. Extended lifespan, competitive value.

six. Great payment phrase.

7. Rapidly delivery.

eight.Thread Normal: BSPP, BSPT, NPT, METRIC etc. Our goods are exported to much more than 30 nations in the whole planet.

9. Our goods are showed at global truthful, these kinds of as Germany, Italy, America, Brazil, Dubai, Russia, ZheJiang China reasonable and so forth each year.

ten. Spot advantage: Close by HangZhou port, the second greatest port in China, convenient transportation and lower expense, and shut to ZheJiang , convenient for customers to visit our manufacturing facility.


1. How to Buy?


Normally the consumer can order our goods by Alibaba platform or contact  us representative by Email. After obtaining your message, our income will confirm with you about the specification or other necessary things, then RELAB will ship an official invoice to you via mail, which will be included the specifics of your buy and financial institution information named CZPT with a stamp and signed by manager. 


2. How to Pay out?


We acknowledge the payment via ESCROW, T/T (financial institution transfer) and Western Union, even Paypal or Credit rating card and L/C . Please inquire us about the information in progress. 

In 2-4 working days, the payment will be transferred into our account. 


3. How to Supply?


Right after paying, you will know a supply time from our official bill, the package will be sent or sent within that schemed time. we usually prepare the supply via DHL, UPS, Hong Kong Publish, China Post or EMS. DHL worldwide convey is our preferred method.

In order to the package protected, RELAB does not provide the bundle by way of any transportation agent.  We can also decide on other ways in that situation of customer ask for it is also available to ship the deal as per appointed forwarder or choosing it up via freight collection. 


·Expedited delivery: 2-4 operating times by way of DHL convey to United states, Europe and Asia

·Standard shipping: 4-8 functioning times by means of DHL express to South of The usa and Africa

·Airmail: 10-thirty operating times



four. How to return?


Suitable to the returns when you receive the products simply because of the subsequent causes.

1. Product was broken, misplaced or skipped

2. Distinct specification from necessary a single.


Prior to purchasing, please choose a appropriate product for you. As you know, all of us don’t assume the return. If your return is the result of our error (you obtained an incorrect or faulty product, and so forth.) we will go over the expense of return shipping and delivery.  Please note that you are accountable for the price of shipping for returns not thanks to our mistake. 


5. Do you have a good quality ensure or warranty?


Sure, all our items are protected by a 12-thirty day period guarantee underneath ordinary surroundings.

We select items to sell based mostly on their outstanding types and established components reliability. So the quality is certain.

If you have any issues whatsoever with the merchandise, or you are dissatisfied for what ever explanation, you can speak to us and we will discuss the situation in an open, trustworthy way.

If you are interested in our products, kindly deliver us your electronic mail to get a best price and a lot more information. We will do everything possible to make sure you you.

Rixin has a strong capability to quick production and shipping in a short time, we have a lot of clients about the world based mostly on our large quality merchandise and quick services.



Customized: Customized
Number of Cylinders: 3
Type: Quick Connector
Usage: Air Compressor, Air Line
Brand: No
Work Temperature: Normal Temperature


US$ 5/Piece
1 Piece(Min.Order)

Request Sample




Customized: Customized
Number of Cylinders: 3
Type: Quick Connector
Usage: Air Compressor, Air Line
Brand: No
Work Temperature: Normal Temperature


US$ 5/Piece
1 Piece(Min.Order)

Request Sample




Types of Couplings

A coupling is a device used to join two shafts together and transmit power. Its purpose is to join rotating equipment while permitting a degree of end movement and misalignment. There are many types of couplings, and it is important to choose the right one for your application. Here are a few examples of couplings.


The mechanical coupling is an important component in power transmission systems. These couplings come in various forms and can be used in different types of applications. They can be flexible or rigid and operate in compression or shear. In some cases, they are permanently attached to the shaft, while in other cases, they are removable for service.
The simplest type of mechanical coupling is the sleeve coupling. It consists of a cylindrical sleeve with an internal diameter equal to the diameter of the shafts. The sleeve is connected to the shafts by a key that restricts their relative motion and prevents slippage. A few sleeve couplings also have threaded holes to prevent axial movement. This type of coupling is typically used for medium to light-duty torque.
Another type of mechanical coupling is a jaw coupling. It is used in motion control and general low-power transmission applications. This type of coupling does not require lubrication and is capable of accommodating angular misalignment. Unlike other types of couplings, the jaw coupling uses two hubs with intermeshing jaws. The jaw coupling’s spider is typically made of copper alloys. In addition, it is suitable for shock and vibration loads.
Mechanical couplings can be made from a variety of materials. One popular choice is rubber. The material can be natural or chloroprene. These materials are flexible and can tolerate slight misalignment.


Electrical coupling is the process in which a single electrical signal is transferred from a nerve cell to another. It occurs when electrical signals from two nerve cells interact with each other in a way similar to haptic transmission. This type of coupling can occur on its own or in combination with electrotonic coupling in gap junctions.
Electrical coupling is often associated with oscillatory behavior of neurons. The mechanism of electrical coupling is complex and is studied mathematically to understand its effect on oscillatory neuron networks. For example, electrical coupling can increase or decrease the frequency of an oscillator, depending on the state of the neuron coupled to it.
The site of coupling is usually the junction of opposing cell membranes. The cellular resistance and the coupling resistance are measured in voltage-clamp experiments. This type of coupling has a specific resistance of 100 O-cm. As a result, the coupling resistance varies with the frequency.
The authors of this study noted that electrotonic coupling depends on the ratio between the resistance of the nonjunctional membranes and the junctional membranes. The voltage attenuation technique helps reveal the differences in resistance and shunting through the intercellular medium. However, it is unclear whether electrotonic coupling is electrostatically mediated.
Electrical coupling has also been suggested to play a role in the intercellular transfer of information. There are many examples that support this theory. A message can be a distinct qualitative or quantitative signal, which results in a gradient in the cells. Although gap junctions are absent at many embryonic interaction sites, increasing evidence suggests a role in information transfer.


When it comes to choosing the right Flexible Coupling, there are several factors that you should take into account. Among these factors is the backlash that can be caused by the movement of the coupling. The reason for this problem is the fact that couplings that do not have anti-fungal properties can be easily infected by mold. The best way to avoid this is to pay attention to the moisture content of the area where you are installing the coupling. By following these guidelines, you can ensure the best possible installation.
To ensure that you are getting the most out of your flexible couplings, you must consider their characteristics and how easy they are to install, assemble, and maintain. You should also look for elements that are field-replaceable. Another important factor is the coupling’s torsional rigidity. It should also be able to handle reactionary loads caused by misalignment.
Flexible couplings come in many different types. There are diaphragm and spiral couplings. These couplings allow for axial motion, angular misalignment, and parallel offset. They have one-piece construction and are made from stainless steel or aluminum. These couplings also offer high torsional stiffness, which is beneficial for applications requiring high torques.
Flexible couplings have several advantages over their rigid counterparts. They are designed to handle misalignments of up to seven degrees and 0.025 inches. These characteristics are important in motion control applications. Flexible couplings are also inexpensive, and they do not require maintenance.


A beam coupling is a type of mechanical coupling, usually one solid piece, that connects two mechanical parts. Its performance is largely determined by the material used. Typical materials include stainless steel, aluminum, Delrin, and titanium. The beam coupling is rated for different speeds and torques. The coupling should be selected according to the application. In addition to the material, the application should also consider the speed and torque of the system.
There are two main types of beam couplings. The first is the helical beam coupling, which has a continuous multi spiral cut. This type of coupling offers a high degree of flexibility and compensates for a high degree of misalignment. The second type of beam coupling is the helical shaft coupling, which has a low torsional stiffness, which makes it ideal for small torque applications.
Another type of beam coupling is the multiple beam design, which combines two beams. It allows for more tolerance in manufacturing and installation and protects expensive components from excessive bearing loads. It also helps keep beams shorter than a single beam coupling. This type of coupling also enables a higher torque capacity and torsional stiffness.
Beam couplings can be manufactured with different materials, including stainless steel and aluminum. The “A” series is available in aluminum and stainless steel and is ideal for general-purpose and light-duty applications. It is also economical and durable. This type of coupling can also be used with low torque pumps or encoder/resolver systems.

Pin & bush

The Pin & bush coupling is a versatile, general-purpose coupling with high tensile bolts and rubber bushes. It can tolerate a wide range of operating temperatures and is suitable for use in oil and water-resistance applications. Its unique design enables it to be used in either direction. In addition, it requires no lubrication.
The pin bush coupling is a fail-safe coupling with a long service life and is used for high-torque applications. It provides torsional flexibility and dampens shocks, making it a flexible coupling that protects equipment and reduces maintenance costs. Its hubs are forged from graded cast iron for strength and durability. Besides, the coupling’s elastomer elements reduce vibration and impact loads. It also accommodates a misalignment of up to 0.5 degrees.
Pin & bush couplings are a popular choice for a variety of different applications. This coupling features a protective flange design that protects the coupling flange from wear and tear. The coupling nut is secured to one flange, while a rubber or leather bush sits between the other flange. Its unique design makes it ideal for use in applications where misalignment is a small factor. The rubber bushing also helps absorb vibration and shock.

Mesh tooth

Mesh tooth couplings are used to transfer torque between two shafts and reduce backlash. However, mesh tooth couplings have some limitations. One disadvantage is the break-away friction factor in the axial direction. This problem is caused by the high contact force between the tooth and gear mesh. This can cause unpredictable forces on the shafts.
In this paper, we present a FEM model for mesh tooth coupling. We first validate the mesh density. To do so, we compute the bolt stress as a uniaxial tensile during the tightening process. We used different mesh sizes and mesh density to validate our results.
The mesh stiffness of gear pairs is influenced by lead crown relief and misalignment. For example, if one tooth is positioned too far in the axis, the mesh stiffness will be decreased. A misaligned gear pair will lose torque capacity. A mesh tooth coupling can be lubricated with oil.
An ideal mesh tooth coupling has no gaps between the teeth, which reduces the risk of uneven wear. The coupling’s quality exposed fasteners include SAE Grade 5 bolts. It also offers corrosion resistance. The couplings are compatible with industrial environments. They also eliminate the need for selective assembly in sleeve couplings.
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editor by CX 2023-03-28