The equipment is designed to transport physical objects between multiple destinations. In other words, pneumatic mail is an installation for moving substances, materials, products, documentation and other things within one production unit. For shipment, special devices are used - capsules.
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Pneumatic mail, which can be purchased at a favorable price in the manufacturer’s store, is used in various industries and human activities. It is used to send money in supermarkets, entertainment centers and other establishments.
It is effectively used in servicing the banking sector. Pneumatic mail, the cost of which depends on its configuration, is used in industrial production. It allows the transfer of materials or finished products from one production site to another. Pneumatic mail in medicine is intended for transporting images, hospital records, tests and various documentation.
Pneumatic mail, the price of which depends on the equipment used for its production, has the following advantages:
- efficiency of document flow;
- transportation safety;
- speed of action, which significantly reduces physical and time labor costs.
The equipment is an automation installation for an employee’s workplace. It was first proposed in 1667 by the famous physicist D. Papin. In the 19th century, systems were used to send letters from one part of the city to another. This became possible thanks to the construction of underground pipelines through which correspondence was transported. Modern pneumatic mail systems are more modernized. With their help, you can send any physical objects.
How does pneumatic mail work?
Transportation is carried out under the influence of vacuum or a certain pressure. The choice depends on the length of the route.
The work of the pneumatic mail consists of the following stages:
- loading the capsule into the equipment for departure;
- moving the capsule to the compressor;
- its transportation from the compressor to the receiving station;
- taking the capsule, extracting.
Pneumatic mail is serviced by operators of sending and receiving stations.
To send “correspondence” on the keyboard, you must specify the recipient's address. After this, the capsule is inserted into a special hole. The operator sets arrows on the display that lead her in the desired direction.
Then the compressor is commanded to create the required vacuum in the system. The capsule begins its movement. Its movement is recorded by sensors that output signals to the display. After the capsule has reached the compressor, the operator asks it new route to the receiving station. The compressor stops. The operator must switch it to the system purging mode. Then the capsule begins its movement towards the recipient. Sensors announce her arrival. The controller removes it from the installation and opens it.
Pneumatic mail systems
The equipment is divided into manual, automatic and built-in installations. Manual pneumatic delivery systems come in open and closed types. In the assembly of the first type of installation, gray or transparent pipes for pneumatic delivery are used. Loading the capsule for transportation is done manually. Receiving does not require any additional action other than extracting the package from the system.
The advantages of manual pneumatic mail open type include low cost and small dimensions. It can be mounted in a vertical position and at an angle.
The pneumatic mail slide station is the most popular type of system. It is made of similar materials as the previous installation. The pipes have holes for loading and unloading the capsule. The first of them is covered with a slider - a transparent cap. The air valve, which is located at the bottom of the structure, provides protection against redirection of air flow. The main advantage of the installation is the ability to install it in both vertical and horizontal positions.
Automatic pneumatic mail is equipment that is equipped with devices and devices for convenient and quick service. Sending and receiving capsules is carried out without operator participation. The employee simply needs to load and unload packages. The number of users of such a system can be unlimited. Loading can be frontal or vertical. There are systems for receiving and sending, receiving, sending, storing capsules.
Built-in pneumatic mail systems are similar installations to the previous ones. In addition to a microprocessor, their designs are equipped with a conveyor belt. The advantage of this type of equipment is the ability to install it on a table or bedside table near the workplace. Maintenance of the pneumatic mail is simple and convenient.
The pneumatic mail (the operating instructions inform about all the nuances of the installation) consists of the following working units:
- workstation;
- main pipelines;
- compressor;
- central controller.
Workstations are the systems described above: manual, automatic and built-in. The choice of equipment depends on the area of its operation.
The main pipeline is designed to move the capsule. It connects workstations to each other. When designing this unit, it is necessary to take into account the size of the transported package, as well as the dimensions of the capsule.
Pneumatic mail operates from the pressure or vacuum created in the system. To do this, it is equipped with compressors of various capacities. There are single- and three-phase units. With their help, it is possible to create the necessary level of pressure for the movement of the capsule. Single-phase compressors are equipped with two motors. The first operates in the discharge mode, the second - in the suction mode. Three-phase units are equipped with one rotor type motor. It can only work in one mode. The counterflow of working air is prevented by a built-in device. It controls the flow power and its direction.
Note. Such units are installed in different places of the system. They are responsible for the quality of transportation and the tightness of the installation.
The central controller is a device that is installed in the system to control the process. The points of departure and receipt are programmed in it. You can expand your control capabilities by connecting a central controller to a computer with special software.
Capsules for pneumatic mail
Products are designed to move physical materials. Pneumatic mail capsules are made of high-strength plastic. Their diameter should be less than the internal diameter of the pipeline. This is the only way the capsule can move freely throughout the system.
The pneumatic mail capsule is a cylinder of various diameters. Seals - cuffs - are attached to its surface. The size of the product directly depends on the diameter of the pipes and the radius of its rotation. The maximum capsule weight reaches 1 kg.
Medical capsules are equipped with bags and stands inside. Thanks to this design, it is possible to transport tests, medications and much more without loss. Some products are equipped with inserts that ensure the safe movement of fragile goods.
Blowers for pneumatic mail
Using equipment, the required level of air flow is created to move the capsule. Vortex blowers are the most popular systems for equipping pneumatic mail. They are low pressure units. Their design consists of a working body, inside of which there is a wheel. When it rotates, air masses move to the inner walls of the housing. As a result, vortices are created. Due to this operating principle, blowers are called vortex blowers.
In addition to vortex units, rotary vane, diaphragm piston, liquid ring, claw and rotary blowers are effectively used. The choice of such equipment must be based on the length of the route for moving the capsule. The performance of each is different. This makes it possible to use several compressors in different places along the route when equipping the pneumatic post.
Perhaps the strangest cargo ever sent by pneumatic mail is living people. A report from 1869 has been preserved about the movement of a 15-year-old teenager in a pipe near London, in a London Pneumatic Despatch Company trailer: “The journey from one terminal station to the other took nine minutes. The journey was exciting every time, the air was fresh and cool even on the hottest summer days. From Holborn Circus the pipe plunged down a steep slope towards Farrington Street, reaching speeds of 60mph. In the darkness, I felt like I was flying down a mountain, feet first. The speeding carriage skidded along the rise towards Newgate Street. For the first time, this flight underground seemed strange and even frightening to me, so close to the surface that I could hear the clatter of hooves and the rumble of carts.”
Arrival of the piston
However, the first trips on pneumatic transport began a quarter of a century earlier. 1844, a suburb of Dublin, 200 passengers take seats on the world's first atmospheric railway train in the town of Dalkey. The carriages in it are completely ordinary, there are seven of them, but there is no locomotive in the train! Five minutes before departure, the bell rings, and the steam engine at the arrival point, almost 3 km away, begins to pump air out of a 40 cm diameter pipe laid between the rails. The pipe contains a piston, hooked to the first trolley car in the train. The driver releases the train's brakes, and the cars gradually pick up speed. The train silently, without the usual locomotive smoke and soot, climbs the mountain and arrives at the final station in a few minutes, having covered the journey at a maximum speed of 64 km/h.
This journey made an indelible impression on his contemporaries. On the way back, the train rolled downhill without any fuss, and third-class passengers helped it get going - they got out and pushed.
Since the 30s of the 19th century, pneumatic transport has developed rapidly. It is interesting that progress in this area followed the path of reduction in size - from passenger cars of the 19th century to the compact capsules of our time.
It is clear that creating traction using a small-diameter pipe is easier than building a tunnel the size of a railway car. But in order for the piston connected to the composition to move, a slot had to be made in the pipe along its entire length. How can I seal this hole hermetically? We settled on a version with a leather strip valve: a passing piston opened it, and a roller installed on the trolley closed and sealed it.
The valve models worked perfectly, but in real life it turned out as always: in the heat the skin dried out and cracked, in the cold it froze and warped. At night, crowds of rats feasted on deliciously lard-soaked skin, and the first morning piston brought to the station a generous harvest of carcasses, mixed with the condensation that had accumulated overnight.
In order for the valve to work acceptably, a worker had to be sent behind each train to lubricate the valve and press it against the pipe. A beautiful idea turned into a headache, and after ten years of operation the first pneumatic railway closed.
The drawing dates from 1870 and depicts the passenger compartment of a pneumatic car at the Broadway station of the New York subway.
Sarcophagus for senators
A more successful application of pneumatic traction was the transportation of mail, but the idea of carts on wheels was not immediately abandoned. In the early 1860s, the London Pneumatic Despatch Company connected several London post offices with a miniature railway tunnel about 120 cm high. Cargo capsules about 60 cm high and 2 m long ran along the rails, equipped with a rubber seal for sealing. Each capsule could carry up to 3 tons of cargo per flight at a speed of up to 60 km/h.
People who wanted to ride through the tunnels also felt quite comfortable, especially if they put a mattress in the capsule. The most ardent optimists believed that the day was not far when sirs and peers, after a working day in parliament, would not have to drag themselves home through London traffic jams, but would quickly rush to their native land through underground tunnels.
The vacuum was created by a “pneumatic wheel” - a structure of rotating metal disks with a diameter of 6 m, which, like a centrifuge, ejected air from the tunnel. Unfortunately, it turned out to be difficult to seal even a small tunnel, so it was not always possible to create the required pressure drop. The wheel was modified, but even when its power was six times greater than the original, the system worked unstable and the capsules constantly got stuck in the tunnels. In 1875 the company was liquidated.
Postal artillery
By this time, the “pipe-capsule” idea had undergone another metamorphosis and had finally found successful application. Smoothly curved metal pipes of small diameter, like capsules entering them, moving like projectiles along the barrel, huge webs of diverging star-shaped postal lines. European capitals, one after another, acquired classic pneumatic mail. At their peak, the size of the networks reached impressive proportions: in Paris up to 467 km, in Berlin up to 440. Tens of millions of messages were sent through them every year.
Each network had its own size of pipes and capsules. In Paris, even a fragile young lady could handle sending messages, but in New York, the post office workers were far from white-collar workers. The harsh New York capsules with a diameter of 20 cm and a length of 61 cm were made of steel, so their weight reached 9.5 kg. They looked like missiles, and the workers who loaded them were called rocket men. To prevent the capsules from getting stuck, a perforated container with lubricant was passed through the pipes from time to time - so the capsules were constantly dirty. Sometimes the “rocket men” were given work aprons, but more often they were simply asked to work in dirty clothes, with tea in the bar!
Each capsule had an address label attached to the outside so they did not have to be opened between stations. And the sensors for capsule jamming were “control fans” at each receiving socket. As the capsule moves, it pushes air in front of it and the fan rotates. If the fan stops, you need to act. The operator called the central station, and, having determined where the capsule was coming from, the mechanic increased the pressure at the point of departure and decreased it at the point of arrival. In 99% of cases it helped. Well, if you were unlucky, you had to dig the streets.
Pneumatic mail worked in any weather and did not depend on road conditions. But its maintenance was expensive, and throughput capsule pneumatic transport is very limited. The New York Postal capsule, not the smallest in existence, contained a maximum of 2.5 kg of mail, and no more than four capsules were sent per minute. And it was impossible to cross this threshold. Therefore, with the spread of telephones and automobiles, the city's pneumatic mail systems closed down one after another.
The Swiss company Swisslog develops medical equipment for leading European clinics. Among its products there are containers for pneumatic mail - reliable, sealed, with antibacterial coating. Each container is equipped with an RFID tag, allowing the computer to centrally track the position of all containers in the system.
Money down the drain
The pneumatic mail did not give up and continued the fight for survival. It shrunk once again to take up residence in large office buildings and stayed there for quite some time. It even turned into a symbol of bureaucracy. But electronic document management knocked her out of these positions as well. Then she occupied narrow niches - large enterprises where it was important to quickly send small items.
Of course, the most important thing is cash. In large stores, cashiers quickly accumulate significant amounts of money. So it’s not far from robbery. And using secure pneumatic mail, it’s easy to send revenue at least every three minutes to a remote safe room. In banks, on the contrary, tellers receive exactly as much cash as they need right at their workplace. this moment.
The container can be used to transport both documents and laboratory glassware, small instruments and even liquids. There are also special cleaning capsules for pipe maintenance.
A less obvious use for pneumatic mail has been found in large clinics: it is the rapid sending of tissue samples to a laboratory for medical tests. For this task, it is important that the capsule brakes smoothly and does not fly to the destination station like an artillery shell. In modern systems, air is supplied to meet the arriving capsule, and it gradually slows down.
The third application is sampling in production. There are systems that allow, for example, to scoop up a sample of molten metal and automatically send it for testing.
The operating principle of pneumatic mail has not changed in 150 years. But materials and management reached new level. For example, now each capsule can be tracked individually and automatically sent anywhere in the network, connecting up to several hundred users. And if the capsule gets stuck, its location will be determined by electronics.
Product pipeline
Each type of transport has its pros and cons, and the balance changes all the time. Cars provide freedom of maneuver, but burn oil, with 70% of the fuel used to move the car itself, and only 30% to move the cargo. A lot of cars means traffic jams, accidents, endless construction and road repairs. Fuel is also not getting cheaper. The search for alternatives continues, and capsule pipelines are one of them.
The idea seems eccentric, until you think about how much a city dweller receives through pipes of liquids and gases every day. For example, 10 tons of water per month per person is a very economical calculation. It would be real madness to try to bring, and after use, also take away all this mass by car. Sewerage, gas and oil pipelines, moving bulk materials in production - pipelines are everywhere, so many of them that they simply blend into the landscape. Streams move day and night, invisible, silent, environmentally friendly. And to move large objects through the pipe, it is enough to put them in transport capsules.
Noel Hodson, coordinator of the Foodtubes project, explains that it is most profitable to introduce the delivery of goods through pipelines in large cities. Setting up a pneumatic delivery network in the London area of Croydon, with a population of 52,000 people and hundreds of supermarkets, will cost $300 million and will fully pay for itself in five years. And most importantly, it will save the area from the arrival of 700 trucks every day. The Foodtubes team is confident that when the first network is built, other areas will want the same, and gradually the networks will merge into a citywide web.
A group of researchers from Imperial College London proposes to use the experience of designing roller coasters for capsule pipelines. On these attractions, the wheels of the trolleys are fixed in the rail, which means that the pipe does not direct the capsule and the load on the walls of the pipe is sharply reduced. Therefore, instead of steel ones, simpler and cheaper plastic pipes can be used.
However, even if we see product pipelines and pipelines in real life, most likely they will not be completely pneumatic. One of the main limitations of pneumatic pipelines is their low throughput, because only one train can be in the pipe at a time. Accordingly, the longer the pipe, the smaller its payload. Possible Solution- accelerate the capsules not with air, but with electric linear motors, simple, reliable and cheap. But that is another story.
The idea of moving small loads inside hollow tubes using compressed air was born in the minds of people a long time ago. The ancient Greek thinker and engineer Heron of Alexandria described this method of delivering correspondence in his treatise “Mechanics”. The pneumatic mail system, invented by the ancient Greek, was a very original idea for its time, but technical level antiquity did not allow it to be put into practice.
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The first actually working pneumatic mail was designed much later, at the end of the seventeenth century, and this method of delivering correspondence came into widespread use another hundred and fifty years later. The first operating pneumatic mail station began operating in 1853 in London, and by the end of the nineteenth century similar systems were operating in many European capitals - Vienna, Paris, Berlin. Pneumatic mail systems developed even more at the beginning of the last century, when stations were opened in Glasgow, Liverpool, Manchester, Philadelphia and other large cities. In the twenties, similar systems appeared in our country. The first pneumatic mail in the USSR began operating in Moscow and Leningrad.
Compressed air - or how pneumatic mail works
Two types of pneumatic mail, operating on different principles, have become widespread. In the first case, the pneumatic mail capsule, inside of which the necessary document is inserted, is driven by compressed air pumped into the pipeline by a special compressor. Excess pressure is created on the back of the capsule, which pushes it forward. In the second case, on the contrary, the pressure in the pipe in front of the pneumatic delivery is reduced many times by a powerful pump that pumps air out of the system. The use of the first operating algorithm allows the capsules to receive more high speed movement, however, the creation of a pressure in the pipe that is many times higher than atmospheric pressure places increased demands on the strength of the pipe for pneumatic delivery. Today, combined systems are used that first create a vacuum and then excess pressure in the pipes.
Forwarding a shipment in a pneumatic mail system includes four phases. The first phase is loading the capsule into the sender station. Next, the pneumatic capsule begins to move from the departure station to the compressor thanks to the vacuum created by the latter. From the compressor to the recipient station, movement occurs under the influence of the high pressure pumped by the compressor. Next, the recipient station receives and issues the capsule.
Before the pneumatic capsule arrives at its destination, its speed of movement is slowed down by the release of a counter-flow of air. This allows you to achieve smooth braking of the parcel and avoid its damage as a result of too much strong blow at the finish line.
The path is one and a half centuries long. Modern pneumatic mail systems
Of course, development electronic systems storage and transmission of information has significantly reduced the use of such systems. It is far from advisable and convenient to install a pneumatic post in every building, so already in the seventies of the twentieth century, a significant part of users began to give preference digital networks. Even very slow and imperfect computer networks the second half of the last century turned out to be much more convenient to use, and routine maintenance of the pneumatic mail, which was performed quite often in those years, interfered with the normal work process.
However, there are still areas of human activity in which Email I have not been able to replace the pneumatic one to this day. Using email, you cannot send a sample of a new melt to a laboratory, or transfer money from a bank vault to a cash desk that handles customer service. Pneumatic mail is in demand in medicine, especially if you need to quickly transport laboratory material, bags of donor blood or transplants, or medications. Pneumatic mail is actively used + in Sberbank, in modern supermarkets, in large institutions that work with paper copies of documents.
Vary modern systems pneumatic mail not only by industry of application, but also by their design features. Single-line and multi-line systems are produced, which are unidirectional and bidirectional. Single-line bidirectional pneumatic systems make it possible to transfer a capsule between two stations in any direction. Unidirectional systems are usually used when it is necessary to connect several sending stations to one receiving station. Because of them design features Return shipping of the pneumocapsule is not possible. Multi-line systems allow both receiving and sending pneumatic parcels to multiple recipients, and consist of several parallel pneumatic pipes with all the necessary equipment, controlled by a common processor.
Modern pneumatic mail systems are quite compact and have software control high degree autonomy, do not produce unnecessary noise. Stations for receiving and sending pneumatic capsules are usually automated, and all processes within the system are displayed on an interactive control monitor. Manages everything special software, optimized for the characteristics of a specific pneumatic system. For ease of use and unification, most control programs run under Windows OS.
"Through the eyes" central computer are numerous sensors that monitor the parcel as it moves through pneumatic pipes and send an alarm signal in the event of an emergency. They also help track the parcel in case of an error made by the sender when indicating the recipient station of the pneumatic capsule.
Aerodynamics of the envelope: Capsules for pneumatic mail
To send documents and small cargo via pneumatic systems, special capsules are used, which are designed in such a way as to prevent damage to the attachment. Usually the capsule is made in the form of a cylinder with a cavity for cargo inside. Modern pneumatic capsules are made from impact-resistant plastic. The diameter of such a capsule is only slightly smaller than the diameter of the pneumatic pipe. This allows you to spend less energy on transportation - the pressure required to move the cargo in the system is reduced. On the other hand, the gaps between the capsule and the pipe walls are sufficient to prevent the capsule from getting stuck during transportation. Depending on the scope of use, the internal space of the capsule is equipped with various tripods and platforms for attaching attachments, as well as special inserts, additionally protecting fragile cargo. Typically, their diameter is 110 centimeters, and the mass of a capsule filled with cargo rarely exceeds one kilogram.
Heirs of Papen boilers: modern blowers for pneumatic mail
Progress in the design and production of pneumatic systems does not stand still - modern pneumatic mail, the equipment of which is controlled by complex electronic microcontrollers, is much more reliable than its mechanical predecessors. No less reliable are the vortex air pumps that pump pressure into the system, commonly referred to as blowers.
Modern blowers are designed and manufactured taking into account three main customer requirements. These machines must be very economical with fairly high productivity, have a long service life, and do not take up too much space. In this regard, leading manufacturers use predominantly vortex compressors. These are exactly the type of blowers that Hanter pneumatic mail uses. Compared to outdated piston systems, such compressors require much fewer moving parts, which allows not only to reduce energy consumption, but also to increase the service life of the mechanism. Thanks to this, the operation of the pneumatic mail becomes more reliable and stable.
Pneumatic mail is one of the most used systems, which has found its place in almost all industries that are in some way connected with the transportation of various products.
Often, such systems are used in banks, or ordinary high-rise buildings that are intended for government officials or any branches for individual enterprises.
To put it simply, in essence, pneumatic mail is a system that is in demand in those industries that require constant movement of certain materials. This could be documents, important auction papers, or money. All this requires fast and reliable movement, which the pneumatic mail handles perfectly.
Pneumatic mail - consists of many pipes that connect to each other at certain points. Often, such systems are used in large structures, or as a connection between several structures. If desired, you can also lay main pipes between an entire network of buildings. Such a procedure will make doing business more efficient, since problems with the transfer of documents will clearly no longer arise.
Installing such a system in production can guarantee that the distribution of labor will be more efficient. Such a system is especially necessary when transporting a huge amount of securities, money and, of course, documents. This was the main reason for such great interest from business leaders.
Now we will look at the 4 main stages of the pneumatic mail workflow:
- Initial loading of the capsule with a certain cargo. Then it is redirected to a special sector, in which all capsules are redirected to certain points.
- The next step is to move the capsule straight to the compressor. This element, in turn, distributes the flow of capsules and directs them to the end points.
- After the previous stage has been completed, the capsule leaves the confines of the external compressor and goes straight to the station, where the recipient can pick up the entire contents of the capsule.
- After all of the above, the user can receive his capsule and remove all contents from it, sending the now empty capsule back to the compressor
But there are a considerable number of nuances in this process, which are also important to remember. One of these can be called filling out the addressee’s questionnaire. This is done to ensure that the capsule goes straight to the right person. If you do not do what the system requires of you, you simply will not be able to send the capsule.
The next temporary stop of the capsule will take place at the compressor itself, in which the capsules are constantly distributed to the required points. After this, the arrows take certain directions, which subsequently allows control to approve the further movement of the capsule through the mechanism.
We should also not forget about special optical sensors. They are also designed to monitor whether the capsules are moving along the arrows inside the system. After the capsule has passed all the required arrows, it will be able to get straight to the recipient.
Pneumatic mail is a system that is truly unique in its structure and has a considerable number of hidden nuances. We can say without any doubt that absolutely every process occurring inside the pneumatic mail is under the supervision of sensors that react to any failure in the system.
Even before the dispatch occurs. Sensors must carefully track the route and analyze the time it takes for the capsule to reach its destination. If during this period the capsule does not arrive at the desired point, the system automatically blocks all arrows. The next stage is a quick diagnosis, which allows you to find the channel in which the capsule has stopped.
Blowing is another important procedure that is needed just in such cases. In essence, this is the usual suction of air in the system, which allows you to return all the capsules to the point where the compressor is located. Once the sensors see that all the capsules are in place, the pneumatic mail can continue to operate as normal.
How does pneumatic mail work?
If we touch on the topic of pneumatic mail design, you will notice a huge number of interesting elements in it:
- Compressor
- Route arrows for moving through stations
- Main pipeline
- System control panel
- Power system stabilization source
- Unit for reliable compressor control
- Central controller
All of the above elements are located close to the suspended ceiling. This allows them to be in the most comfortable and safe place without interfering with the work process.
One of the most important elements in the system can be called double-acting compressors. This part of the system takes upon itself the creation of pressure within the system, which is a very labor-intensive task. It is important to realize that the level and quality of performance of the pneumatic delivery system depends on how the compressor operates.
Bycaps is another important component that is needed to slow down the capsule at the end point. This mechanism is practically indestructible, which is why it is used in such systems.
The central controller is an element that serves as a kind of regulator. It is the central controller that monitors all the main processes and makes them of the highest quality. It is important to understand that the presence of a controller in the system is required condition, since without it, the transportation process becomes impossible.
Route arrows are another component that directly affects the movement of materials within the system. The arrows themselves serve as something like a pointer that redirects the capsules to certain compartments. From this we can conclude that the role of this element in such systems is really large.
Pneumatic mail systems
At the moment, on the vacuum equipment market you can see a huge number of varieties of pneumatic mail. Among the entire range, you can choose both more expensive systems and quite budget options for effective use.
Since we have already talked about the effectiveness of pneumatic mail systems. Now we will try to consider its main advantages:
- High degree of system reliability
- Qualitative distribution of working time
- High capsule transfer rate
- Huge potential further development similar systems
- Possibility of connecting several buildings with a similar system
- Availability of a function for sending specialized capsules
- Forwarding function
Capsules for pneumatic mail
If earlier we mainly talked about the pneumatic mail systems themselves. Now we will talk about capsules. Without a doubt, capsules can be called one of the most important elements of such systems. After all, it depends on them whether money, documents or some other supplies will arrive quickly.
It is important to initially realize that the cost of the capsules also determines the speed at which documents will be transferred.
Now we will look at the most reliable and quality models capsules for pneumatic mail:
- Swivel LID CARRIER NW110
- FLIP-TOP CARRIER NW110K/L
- SWIVEL LID NW3 inch
Blowers for pneumatic mail
A blower is one of the categories of equipment that is actively used in a variety of industries. In this system, it plays the role of the main vacuum creator. A lot also depends on how efficient the process of generating pressure inside the blower will be.
Few people will be surprised by the fact that a leaf blower is a real multifunction device, which really plays a significant role in the operation of many systems. In this system, it plays the role of a generator of the required pressure, which ultimately leads to the formation of a vacuum inside the system.
Vacuum is one of the key components in this system. After all, without the required level of vacuum, this mechanism and will be completely useless. After all, the possibility of moving capsules appears only after the formation of the necessary vacuum inside the mechanism.
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