Homemade cyclone filter for a vacuum cleaner. Homemade vacuum cleaner: cyclone, construction or for the workshop

Today we will tell you about a cyclone filter for a vacuum cleaner in the workshop, because one of the problems that we have to deal with when working with wood is dust removal. Industrial equipment It’s quite expensive, so we’ll make a cyclone with our own hands - it’s not difficult at all.

What is a cyclone and why is it needed?

In a workshop there is almost always a need to remove fairly large debris. Sawdust, small trimmings, metal shavings - all this, in principle, can be caught by a regular vacuum cleaner filter, but it is highly likely to quickly become unusable. In addition, it will not be superfluous to be able to remove liquid waste.

The cyclone filter uses aerodynamic vortex to bind debris different sizes. Spinning in a circle, the debris manages to stick together to such a consistency that it can no longer be carried away by the air flow and settles at the bottom. This effect almost always occurs if the air flow passes through a cylindrical container at sufficient speed.

These types of filters are included in many industrial vacuum cleaners, but their cost is by no means affordable for the average person. At the same time, the range of problems solved using homemade devices, not at all anymore. A homemade cyclone can be used both in conjunction with planes, hammer drills or jigsaws, and for removing sawdust or shavings from various types of machine tools. In the end, even simple cleaning with such a device is much easier, because the bulk of dust and debris settles in a container, from where it can be easily removed.

Difference between wet and dry cyclone

To create a swirling flow, the main requirement is that the air entering the container does not follow the shortest path to the exhaust hole. To do this, the inlet pipe must have special form and be directed either to the bottom of the container or tangentially to the walls. Exhaust duct Using a similar principle, it is recommended to make it rotary, optimally if it is directed towards the cover of the device. The increase in aerodynamic drag due to pipe bends can be neglected.

As already stated, cyclone filter Potentially capable of removing liquid waste. With liquid, everything is somewhat more complicated: the air in the pipe and cyclone is partially rarefied, which promotes the evaporation of moisture and its breaking into very small droplets. Therefore, the inlet pipe must be located as close as possible to the surface of the water or even lowered under it.

In the majority washing vacuum cleaners Air is supplied to the water through a diffuser, so any moisture contained in it is effectively dissolved. However, for greater versatility with a minimum number of alterations, it is not recommended to use such a scheme.

Made from scrap materials

The simplest and affordable option For the cyclone container there will be a bucket of paint or other building mixtures. The volume should be comparable to the power of the vacuum cleaner used, approximately one liter for every 80-100 W.

The bucket lid must be intact and fit tightly onto the body of the future cyclone. It will have to be modified by making a couple of holes. Regardless of the material of the bucket, the easiest way to make holes is required diameter- use a homemade compass. IN wooden slats you need to screw in two self-tapping screws so that their tips are at a distance of 27 mm from each other, no more, no less.

The centers of the holes should be marked 40 mm from the edge of the cover, preferably so that they are as far apart as possible. Both metal and plastic can be scratched perfectly with this homemade instrument, forming smooth edges with virtually no burrs.

The second element of the cyclone will be a set of sewer elbows at 90º and 45º. Let us draw your attention in advance that the position of the corners must correspond to the direction of air flow. Their fastening in the housing cover is carried out according to the following scheme:

1. The elbow is inserted all the way into the side of the socket. Silicone sealant is first applied under the side.
2. WITH reverse side The rubber sealing ring is pulled tightly onto the socket. To be sure, you can additionally compress it with a screw clamp.

The inlet pipe is located with a narrow rotating part inside the bucket, the bell is located with outside almost flush with the lid. The knee needs to be given another 45º turn and directed obliquely downwards and tangentially to the wall of the bucket. If the cyclone is made with wet cleaning in mind, you should extend the outer elbow with a piece of pipe, reducing the distance from the bottom to 10-15 cm.

The exhaust pipe is located in the reverse position and its socket is located under the bucket lid. You also need to insert one elbow into it so that air is taken from the wall, or make two turns for suction from under the center of the lid. The latter is preferable. Don’t forget about the O-rings; for a more reliable fixation and to prevent the knees from turning, you can wrap them with plumber’s tape.

How to adapt the device for machines and tools

To be able to draw in waste when using hand-held and stationary tools, you will need a system of adapters. Typically, a vacuum cleaner hose ends in a curved tube, the diameter of which is comparable to the fittings for dust bags of power tools. As a last resort, you can seal the joint with several layers of double-sided mirror tape wrapped in vinyl tape to eliminate stickiness.

With stationary equipment everything is more complicated. Dust extraction systems have very different configurations, especially for homemade machines, so we can only give a few useful recommendations:

1. If the machine's dust extractor is designed for a 110 mm or larger hose, use plumbing adapters with a 50 mm diameter to connect the corrugated hose of the vacuum cleaner.
2. To connect homemade machines to a dust catcher, it is convenient to use press fittings for 50 mm HDPE pipes.
3. When designing the dust collector housing and outlet, take advantage of the convection flow created by the tool's moving parts for greater efficiency. For example: a pipe for removing sawdust from circular saw must be directed tangentially to the saw blade.
4. Sometimes it is necessary to provide dust suction from different sides of the workpiece, for example, for band saw or a router. Use 50 mm sewer tees and corrugated drain hoses.

Which vacuum cleaner and connection system to use

Usually, you don’t choose a vacuum cleaner for a homemade cyclone yourself, but use the one that is available. However, there are a number of limitations beyond the power mentioned above. If you want to continue using the vacuum cleaner for domestic purposes, then at a minimum you will need to find an additional hose.

The beauty of the sewer elbows used in the design is that they ideally match the diameter of the most common hoses. Therefore, the spare hose can be safely cut into 2/3 and 1/3, the shorter section should be connected to the vacuum cleaner. The other, longer piece, as is, is tucked into the socket of the cyclone inlet pipe. The maximum that is required in this place is to seal the connection silicone sealant or plumber's tape, but usually the planting density is quite high. Especially if there is an o-ring.

The video shows another example of making a cyclone for dust removal in a workshop

To pull a short piece of hose onto the exhaust pipe, the outermost part of the corrugated pipe will have to be leveled. Depending on the diameter of the hose, it may be more convenient to tuck it inside. If the straightened edge does not fit slightly onto the pipe, it is recommended to warm it a little with a hairdryer or indirect flame gas burner. The latter is considered an excellent option, because this way the connection will be located optimally in relation to the direction of the moving flow.

Wood has always been considered environmentally friendly and safe material. Fine wood dust generated during processing wooden blank, is not as harmless as it might seem. Inhaling it does not at all contribute to saturating the body with useful microelements. Accumulating in the lungs and upper respiratory tract (and wood dust is not processed by the body), it slowly but effectively destroys the respiratory system. Large chips constantly accumulate near machines and working tools. It is better to remove it immediately, without waiting for insurmountable blockages to appear in the carpentry space.

In order to support home carpentry required level cleanliness, you can buy an expensive exhaust system consisting of powerful fan, cyclone, chip catchers, chip containers and auxiliary elements. But the users of our portal are not those who are used to buying something that they can do with their own hands. Using their experience, anyone can build an exhaust system with the power to meet the needs of a small home workshop.

Vacuum cleaner for collecting sawdust

Chip extraction using a conventional household vacuum cleaner is the most a budget option of all existing solutions. And if you manage to use your old cleaning assistant, who, out of pity, has not yet been thrown into the trash, it means that your inherent frugality has once again served you well.

ADKXXI User FORUMHOUSE

My vacuum cleaner is over fifty years old (brand: “Uralets”). It copes well with the role of a chip sucker. He is only as heavy as my sins, but he can not only suck, but also blow. Sometimes I take advantage of this opportunity.

On my own household vacuum cleaner, installed in a place of honor in the workshop as a chip ejector, will be useless. And the main reason for this is that the volume of the bag (container) for collecting dust is too small. That is why there must be an additional unit between the vacuum cleaner and the machine exhaust system, consisting of a cyclone and a volumetric tank for collecting sawdust.

Osya User FORUMHOUSE

The most easy installation –vacuum cleaner and cyclone. Moreover, the vacuum cleaner can be used at home. Instead of a cyclone (cylindrical cone), a separating cap can be used.

DIY sawdust vacuum cleaner

The design of the chip suction device we are considering is extremely simple.

The device consists of two main modules: a cyclone (item 1) and a container for chips (item 2). The principle of its operation is as follows: using a vacuum cleaner, a vacuum is created in the cyclone chamber. Due to the difference in pressure inside and outside the device, sawdust, along with air and dust, enters the internal cavity of the cyclone. Here, under the influence of inertia and gravity forces, mechanical suspensions are separated from air flow and fall into the lower container.

Let's look at the design of the device in more detail.

Cyclone

The cyclone can be made in the form of a lid that is installed on top of the storage tank, or you can simply combine these two modules. First, let's consider the second option - a cyclone made in the body of a container for chips.

First of all, we should purchase a tank with a suitable volume.

ForceUser FORUMHOUSE user,
Moscow.

Capacity – 65 l. I took it on the principle that I needed volume and convenience when carrying a filled container. This barrel has handles, which is very convenient for cleaning it.

Here is a list of additional elements and materials that we will need to assemble the device:

• Screws, washers and nuts - for fastening the inlet pipe;
• Line segment sewer pipe with cuffs;
• Transition coupling (from the sewer pipe to the suction pipe of the vacuum cleaner);
• Gun with assembly glue.

Do-it-yourself vacuum cleaner from a barrel: assembly sequence

First of all, a hole is made in the side of the tank for the inlet pipe, which will be located tangentially to the body. The figure shows a view from the outside of the tank.

It is advisable to install the pipe in the upper part of the plastic barrel. This will allow you to achieve maximum degree cleaning.

From the inside, the inlet pipe looks like this.

The gaps between the pipe and the walls of the tank should be filled with mounting sealant.

At the next stage, we make a hole in the lid, insert the adapter coupling there and carefully seal all the cracks around the pipe. Ultimately, the design of the chip ejector will look like this.

The vacuum cleaner is connected to the upper outlet of the device, and the pipe that removes chips from the machine is threaded into the side pipe.

As you can see, the presented design is not equipped with additional filters, which does not greatly affect the quality of air purification.

day_61 User FORUMHOUSE

I made a chip pump based on the theme. The basis is a 400 W "Rocket" vacuum cleaner and a 100 liter barrel. After assembly of the unit, tests were successfully carried out. Everything works as it should: sawdust is in the barrel, the vacuum cleaner bag is empty. So far, the dust collector is connected only to the router.

Be that as it may, the cyclone still cannot retain a certain percentage of wood dust. And in order to maximize the degree of cleaning, some users of our portal are thinking about the need to install an additional fine filter. Yes, a filter is needed, but not every filter element will be appropriate.

Osya User FORUMHOUSE

I think that installing a fine filter after the cyclone is not entirely correct. Or rather, you need to install it, but you will be tired of cleaning it (you will have to very often). There the filter fabric will just roll around (like a bag in a vacuum cleaner). In my Corvette, the top bag catches the bulk of the fine dust. I see this when I remove the bottom bag to remove sawdust.

A fabric filter can be created by attaching a frame to the top cover of the cyclone and covering it dense material(you can use a tarpaulin).

The main task of the cyclone is to remove sawdust and dust from working area(from a machine, etc.). Therefore, the quality of cleaning the air flow from fine suspended matter plays a secondary role in our case. And, taking into account that a standard dust collector installed in a vacuum cleaner will certainly retain the remaining debris (not filtered by the cyclone), we will achieve the required degree of cleaning.

Cyclone cover

As we have already said, the cyclone can be made in the form of a lid that will be placed on the storage tank. A working example of such a device is shown in the photo.

PointLogs User FORUMHOUSE

The design should be clear from the photographs. The plastic was soldered with a regular soldering iron using a fine steel mesh. The cyclone is quite effective: when filling a 40-liter barrel, no more than a glass of garbage has accumulated in the vacuum cleaner bag.

Despite the fact that this cyclone is part of a homemade construction vacuum cleaner, it can be successfully implemented into the design of a carpentry chip ejector.

Sawdust pipeline

It is better to purchase hoses connected to the chip ejector from a vacuum cleaner. Can be laid along the wall plastic pipeline with smooth inner walls. It will connect the machine to the suction pipe of the cyclone.

A certain danger is posed by static electricity, which is formed during the movement of sawdust through a plastic pipe: sawdust sticking to the walls of the pipeline, ignition of wood dust, etc. If you want to neutralize this phenomenon, it is better to do this during the construction of the sawdust pipeline.

Not all owners of home workshops pay attention to the phenomenon of static electricity inside the sawdust pipe. But if you design the chip ejector in accordance with the rules fire safety, then a corrugated material with a built-in metal conductor should be used as a sawdust pipe. Connecting such a system to a grounding loop will help avoid problems during operation.

alex_k11 User FORUMHOUSE

Plastic pipes must be grounded. Hoses should be taken with a wire, otherwise static will accumulate very strongly.

Here's a solution to combat static electricity in plastic pipes offered by one of the FORUMHOUSE users: wrap plastic pipe foil and connect it to the ground loop.

Exhaust devices

The design of devices that remove chips directly from the working parts of carpentry equipment depends on the characteristics of the machines themselves. Therefore, products made of plastic, plywood and other suitable materials can be used as exhaust elements.

To solve this problem, the tank body can be equipped with metal frame, or insert several metal hoops of suitable diameter inside (as suggested by the user alex_k11). The design will be more bulky, but absolutely reliable.

Chip ejector for several machines

A system based on a household vacuum cleaner has low productivity. Therefore, it can only serve one machine at a time. In other words, if there are several machines, the suction pipe will have to be connected to them alternately. It is also possible to install the chip ejector centrally. But to ensure that the suction power does not drop, idle machines should be disconnected from common system using gates (dampers).

When working in a workshop or at home with a grinding tool, when processing parts and preparing surfaces, the need arises to remove fine dust. And, of course, it is advisable to reduce its concentration even during work by organizing local constant air purification at the workplace.

At enterprises, this problem is solved by installing filter units with a cyclone, which collects and sediments dust with the required efficiency.

In our case it is enough make a vacuum cleaner with a cyclone, thereby saving on the purchase of a construction vacuum cleaner, where such a function is provided by the manufacturer.

The principle of operation of a homemade construction vacuum cleaner with a cyclone filter

There are several options for making a cyclone for domestic needs. To determine the most effective operating scheme for the equipment, you should know the operating principle of this filter.

Cyclone in classic version It is a cylinder and a cone, in the upper part of which there is an inlet for polluted air and an outlet for purified air.

The inlet is made so that the air enters the filter tangentially, forming a rotating flow directed towards the equipment cone (down).

Inertial forces act on pollutant particles and carry them out of the flow to the walls of the apparatus, where dust settles.

Under the influence of gravity and secondary flow, the mass deposited on the walls moves towards the cone and is removed into the receiving hopper. The purified air rises up along the central axis and is discharged through a pipe located strictly in the center of the upper platform of the cyclone.

Required condition effective cleaning air is the exact calculation of the apparatus and the tightness of the cyclone, including in relation to the receiving hopper.

Otherwise, the principle of operation is disrupted and chaotic air movement occurs, preventing dust from settling normally.

In addition, it is necessary to select a motor that sucks in contaminated air, which will ensure optimal operating parameters of the equipment.

Homemade filter for a construction vacuum cleaner, the variants of which are offered on the Internet cannot be called a full-fledged cyclone.

The most simple circuit Such equipment is a plastic barrel with an embedded inlet pipe tangentially, a built-in filter from a car inside the “cyclone” body, through which purified air is removed and to which a household vacuum cleaner is connected.

The disadvantages of the equipment are the absence of a formed flow swirling along the walls of the barrel and a laminar return flow.

In essence, we get an additional capacity for settling large particles (sawdust, shavings), and fine dust will clog the filter at the outlet, and will require constant cleaning.

To improve the design, we suggest adding a plastic barrel homemade cyclone made from traffic cone. It is best to install a stationary version of equipment for removing dust from the workplace if work is carried out over several hours.

In this case we need a radial household fan. And with a one-time connection of the cyclone, it is enough to use a regular vacuum cleaner with adjustable suction power.

Sometimes an additional rheostat is installed to reduce the rotation speed of the vacuum cleaner engine, thereby selecting the parameters necessary for normal functioning filter.

In the following sections of the article we will present you with two options for a cyclone for domestic use.

Selection of equipment - what is needed for work

For the first design option for a permanent installation, you will need the following components:

• Plastic barrel;
• Gray plastic sewer pipe with a diameter of 50 mm;
• Traffic cone;
• Corrugated hoses, reinforced with steel wire or metallized hoses;
• Adhesive for plastic;
• Radial household fan with the ability to change the engine speed and performance equal to six times the exchange of air in the room;
• Plywood 10-12 mm thick.

The second version of the product is the most successful, since in this case the product approaches the functionality of a real cyclone.

To make a filter you will need to purchase:

• Ready-made plastic cyclone made in China;
• A barrel, bucket or other container for making a dust bin;
• Corrugated hoses.

A plastic cyclone is inexpensive, approximately 1500-2500 rubles, and is designed to collect medium and heavy dust. Works great with shavings and sawdust.

Step-by-step instructions for the cyclone assembly process

Our first option is a stationary design for workshops with large amounts of dust of various origins.

1. First we make the cyclone itself. We make a hole in the plastic cone to allow the sewer pipe to pass tangentially.
2. For better connection The mating surface of the pipe with the cone body is matted with emery cloth. We glue the seams using a mounting gun.
3. In the upper part of the cone we install a vertical pipe, the lower end of which should be below the inlet. In this way we can achieve vortex air movement. The pipe is fixed in a plywood sheet in the shape of a circle with a diameter equal to the size of the base of the cone.
4. The prepared cyclone is secured to the barrel lid using a round plywood sheet.
5. To plastic barrel when the inlet pipe is clogged with debris, it does not deform under the influence of vacuum; inside the container we install a spacer - a frame made of plywood sheet. External dimensions frames repeat inner diameter barrels. To strengthen the structure, we attach the construction cone to the lid of the container using metal pins.
6. Next, we connect the cyclone to the corrugated hoses at the inlet and outlet. We install a radial household fan outdoors under a canopy.

The second version of the construction vacuum cleaner is based on a Chinese plastic cyclone, which is also attached to any of the selected containers. The result is a reliable and efficient design.
The cyclone is attached to the container using a metal clamping flange.

VIDEO INSTRUCTION

When starting the vacuum cleaner and further operation, do not forget to clean the inlet pipe and stop the internal spacers on the containers to prevent deformation of the receiving hopper.

If finer air purification is required, the design is supplemented with a car filter in the housing at the outlet of the product.

Very often when installation work With electricity, it is impossible to do without a vacuum cleaner. This is primarily due to the processes of wall gating.

You cannot use homemade household models for this task, otherwise you will ruin them on the very first day of work. Their dust collectors will fill up very quickly, and the vacuum cleaner itself will overheat.

Only professional craftsmen who earn a daily living from this type of activity can afford to buy a construction equipment, which costs quite a lot of money.

But what if you are not a builder and you only need such a device to complete electrical repairs in your apartment? In this case, there is only one optimal solution - to make a construction vacuum cleaner yourself from an ordinary one.

Moreover, such a change will only take you a few minutes. And the materials that are required for this can be easily found in the pantry, or purchased in addition at the nearest plumbing store.

Let's take a closer look at two very similar methods, which nevertheless have design differences between themselves.

Homemade cyclone from a household vacuum cleaner

The first method has been presented on the Internet and on YouTube for quite some time. You can easily find many videos with similar homemade cyclones.

However, they raise quite natural questions and skepticism among professional builders. Therefore, it should be noted right away that they are mostly suitable for removing wood chips.

But it is better not to work with cement dust with such devices. The second option is more tailored to it.

The main “trick” that will allow you to easily suck in kilograms of garbage, wood, and metal filings and not worry about frequently changing filter bags is a homemade “separator”.

It will then need to be constructed from several components. For the entire assembly you will need:

A bucket of Shitrok putty is best suited here. It is harder to flatten it with a vacuum.

First of all, drill or carefully cut out the center of the bucket lid through hole under the phone.

Mark the third hole closer to the edges of the cover, where the stiffener is.

If you do not have a special crown, then first pierce the intended circle with an awl and carefully cut it with a stationery knife.

The edges will be uneven, but they can be processed with a round file.

Two sewer outlets are inserted into these holes. So that they hold securely and there is no additional air leakage, it is better to glue them.

To do this, first sand the edges of the tube with sandpaper or a file to create a rough surface.

Do the same operation with the lid.

After this, insert the tube into the inside of the cap and apply a thick layer of glue with a hot-melt gun.

Don't skimp on glue. This will help create a good seal in these places and tightly close all the cracks.

There is actually another option in which you can do without glue and fan pipes. To do this, purchase from Leroy Merlin rubber adapter couplings.

They are different diameters. Select according to the size of your hose.

For example, a tube from a 35mm hose is tightly inserted into a 40/32 coupling. But in a 40mm pipe it will dangle. We'll have to reel in something and collective farm.

On the tube that is located on the edge of the lid, place the sewer outlet at 90 degrees.

At this point, the separator design can be said to be almost ready. Install the lid with outlets on the bucket.

The air intake hose from the vacuum cleaner is inserted into the central hole.

And the piece that you will use to collect all the debris and dust is stuck into the corner joint.

It is desirable that the tubes contain O-rings according to the size of the corrugated hoses of the vacuum cleaner.

This completes the entire assembly. You can plug in the vacuum cleaner and use it.

Here visual video from the inside of a bucket of similar design. It clearly shows how sawdust is sucked into the separator, but cannot escape from it and get into the vacuum cleaner.

The operating principle here is as follows. Coarse dust sucked into the container falls to the bottom of the container. At the same time, it does not enter the area where air is pumped directly.

Three factors help in this matter:

• gravity

• friction

• centrifugal force

They then make the garbage rotate inside the bucket, pressing against its walls, and then fall to the bottom. And only the fine fraction goes directly into the dust collector of the vacuum cleaner.

Typically, such a cyclone in factory designs has the shape of a cone, but cylindrical specimens also often cope well with this task.

True, the higher the bucket, the better the installation will work. Much here depends on the correct combination of the design of the container and the power of the vacuum cleaner. Here is a sign from Chinese cyclones correct selection hose diameter and unit power.

In cylindrical buckets, the tangential air flow enters not through the curved side wall, but through flat cover. Assembling such a device is much easier.

Also, if you have several buckets, you can use them alternately. Just remove the lid from one and move it to the other. Moreover, this is even easier to do than in bulky cyclones.

If you have a powerful vacuum cleaner, instead of a plastic bucket for emulsion paint, it is better to use a metal tank of the same shape. Otherwise, the bucket will collapse and flatten it.

The power regulator helps in this matter. If, of course, it is present in your model.

Why does the vacuum cleaner still fail?

With this method, all the fine dust will enter the vacuum cleaner bag, and more or less large fractions will simply settle and remain in the bucket. As do-it-yourselfers assure, more than 95% of construction waste settles in the separator and only 5% goes directly into the dust collector of a household vacuum cleaner.

However, the thing is that even this 5% can gradually kill the vacuum cleaner. In addition, even for industrial cyclones, the declared efficiency is rarely more than 90%, but what about home-made products, in which the aerodynamics are far from perfect.

For 100% collection of the fine fraction, an electric precipitator or bubble column is needed.

By the way, some types of dust cause very strong static voltage. Be careful when working.

The longer you work with the unit without unplugging it, the higher the charge may be. Here, read the instructive commentary of one real user of such a homemade product.

Therefore, on many cyclones, even factory-assembled ones, the flange is grounded.

Five percent petty wood shavings Of course, they are not terrible for a household vacuum cleaner. What if it is fine cement dust during gating?

When such particles get inside, they clog the filter tightly.

And this happens very quickly. The entire effectiveness of the “cyclone” drops by at least 2/3 within a matter of minutes.

The main problem is the dust bag. It is dense and the filtration area is small. Therefore, it is not suitable for waste from plaster and concrete walls.

What to do? Is it really impossible to do without a real construction project? During intensive work, only an expensive and professional tool really saves you.

What is the difference between a construction vacuum cleaner and a regular one?

But for occasional work, this design It can be slightly modified and improved. The idea belongs to Shayter Andrey.

Before we look at the second design option, ask yourself the question: “What is one of the main differences between household vacuum cleaners and construction vacuum cleaners?”

In domestic models, cooling occurs due to the intake air.

That is, you vacuum the floor, the air sucks in debris. Next, it is filtered and cooled by the engine itself. After which the air is thrown out.

This is where the risk of engine damage comes from. Firstly, when the filter becomes clogged, engine cooling drops sharply.

Secondly, cement dust is 100% not retained in the dust collector, and some of it flies through the windings, along the way removing the varnish insulation like sandpaper. Such dispersed dust kills everything that rubs and rotates.

Adding water to the bottom of the tank doesn't really help. Instead of dust, you will get a lot of dirt, the weight of the bucket, and the filters will still eventually become clogged.

In professional devices, the engine is cooled separately, through special technological holes. Therefore, they are not so afraid of bags completely filled with garbage.

Moreover, they also have automatic cleaning or shaking.

In order to intelligently remake a household model, you will need a little more spare parts than in the first case.

Working version of a construction vacuum cleaner from a household one

Main additional element here is a filter bag made of non-woven material. Instances from Karcher are very suitable - article number 2.863-006.0

Actually, this filter is disposable. Your task is to make a reusable element out of it.

To do this, cut it bottom part and fold it a little, slightly reducing the width (up to 22cm).

Next, this lower part needs to be closed with a special lid. You make it from two elements of a plastic cable channel and a piece of polypropylene pipe.

Saw the tube lengthwise, with a slot width of approximately 5mm.

Apply them with the back side to the fabric at the bottom.

Then insert the prepared tube through the slot.

As a result, from a disposable one you have a reusable filter bag. And much more bigger size than the one installed inside the household model.

Next, you go through the previously discussed steps to modernize the bucket. Drill holes in the lid and insert rubber corrugated adapters into them.

One will be for connecting the filter bag, the other will be for the hose. Select the sizes according to the diameters of your devices.

Here you can do without fan pipes and corners. Next you dress plastic insert from a reusable filter to an adapter.

All that remains is to tightly close the lid on the bucket. The structure is ready for use.

Although it is similar, it differs from the first option above. After you turn on the unit and begin to suck in debris, it is the homemade reusable dust collector that will collect all the muck and dirt.

Dust will not fly around as in the previous case. On the contrary, this bag will swell inside the bucket due to the air flow.

Gradually it will be filled with both heavy and small fractions that could have been missed by the cyclone.

However, do not forget about clogging the walls of the reusable filter and reducing the draft of the cooling air flow. In order not to burn out the motor of a household vacuum cleaner, it is necessary to carry out one more action.

How not to burn a household vacuum cleaner

Most modern models there is a built-in safety valve. It shows when the filters are already clogged and at this moment additional air flow opens.

True, this is already considered emergency. Your task is not to wait for the valve to operate, but to use a slightly different trick.

Some devices have a draft regulator directly on the handle in the form of a hole that opens or closes. It should just be opened slightly for any type of work.

If you do not have such a factory regulator, you can drill a small additional hole with a diameter of 12 mm in the bucket lid itself.

Well, and most importantly, do not forget that any household vacuum cleaner, no matter how you modernize it, has a certain period of continuous operation. Be sure to record the start time and do not work longer than the prescribed period.

That is, just take breaks. At least to shake things up homemade filter. And it just shakes itself along with the bucket.

When the dust container is significantly full, open the lid of the bucket and lightly pull the tube out from the guides at the bottom of the bag.

It will open and the debris and dust can be removed. After that, put the entire structure back together and continue working.

Normal operation of the bag is enough for about three full fillings. After this, cement dust in the fabric itself begins to greatly inhibit the air flow.

You will have to either replace the filter with a new one, or not just shake it, but thoroughly clean it of all fine debris and continue working as if nothing had happened.