Motor for circular 220v which to choose

Miter saws Interskol

Along with foreign counterparts, not the last place is occupied by the construction tool Interskol. This is a domestic manufacturer, which is already one of the world leaders in the production of electrical construction equipment. The equipment is very reliable, of high quality and its price is affordable.

What is the difference between these products and similar ones? Among the main features are the following:

• the circular saw makes accurate cuts, regardless of the angle at which it was made;
• accurate setting of angles and reliable fastening in a given parameter;
• powerful engine with reliable cooling system;
• allowed to be used for cutting plastic, aluminum and copper billets;
• the trimming tool is made of quality materials;
• cutting depth adjustment;
• laser designator.

I bought an Interskol circular saw in Leroy. Initially I took that is cheaper. It was necessary in the country to saw at the corner of the boards for the fence. I was very pleased with the accuracy of the angle and the fact that the disc does not tear, but makes very beautiful cuts. For more than a year I have had this machine. I work for them all the time and for myself, I need to do something and cheat.

We worked at the facility, and our Makita broke down. There was no one from the bosses, so we bought it ourselves at the nearest market. The seller was very praised. Since there was nothing else and there was nothing to choose from, we decided to take this one. We have completed the entire scope of work with this trimming. I have never failed. Maybe just lucky. I would like to think that ours still learned to do.

A homemade circular saw is a thing on the farm not so rare and, of course, necessary. To make it of course, having only the initial abilities of working on metal, a table adapted for a workbench and accuracy.

A circular saw on its own makes sense if you already have some groundwork for information: pieces of an iron corner, a shaped rectangular pipe and, in particular, an engine. It is also called an angle drill (“angle grinder”). The motor has an option to look after used on the “iron” market, where they are not unique.

A hand-held circular saw on its own comes out much easier if, of course, an angle grinder is already on the farm. It is enough to make only two usual improvements: the sliding stop and the axial handle.

Sliding stop. two pieces of a small iron angle, located on both states from the working body: a disc with teeth, installed instead of an abrasive wheel. The gap is 3-4 mm on each side. The horizontal edges of the corners must be rounded from below so that they do not cling to the workpiece. The corners must be cross-braced in front and behind. For this purpose, bolts and nuts are suitable for you, and a package of washers will give a suitable clearance.

On the body of the angle grinder we put on a clamp made of iron tape; the screw-shaped clamp of the clamp is placed at the bottom. A double-folded strip of sheet metal or galvanized steel with a hole for the rear bolt of the sliding stop is aggressively attached to it. In this way, the emphasis is fixed at the back. Of course, the clamp with the rear stop of the stop should be performed as a single one, alas, the thickness of the metal strip must simultaneously be more than 1. 1.5 mm. Shifting the washers providing the gap, they achieve similar gaps between the working body and the sidewalls of the stop.

We make two. four threaded holes for small bolts (M3. M5) in the gearbox housing of the angle grinder. The gearbox must first be disassembled and found in the place where you can drill. These holes are needed to attach the homemade axle handle. Using a standard side handle, an angle grinder will be difficult to make an even cut, even at the physical level, for a strong man with persistent working abilities.

We make the axial handle from an iron tube, as it is also called a rod in the form of a horn directed upward or a palm-wide transverse bracket with a certain supply. We DO NOT splash the ends with which it will be attached to the gearbox and drill holes for the mounting bolts. If the attachment ends are splashed, the handle will bend with force during operation.

If the handle is in the shape of a horn, we spill its far end in a horizontal plane and drill a hole in a personal computer for an axis of 4-6 mm with a supply, i.e. 6-10 mm. If the handle is a bracket, under it, in the same holes in the gearbox, we attach a piece of a rod sticking out in front of it, in other words, a tube, and spill its end and drill a hole here, as indicated above. Obviously, between the rod and the bracket there will be a sufficient distance for the convenience of work. 100-150 mm.

Now we take a piece of an iron rod 4-6 mm. This will be the adjuster bar. We bend one end of it like a hinge, splash a little and drill a hole under the front bolt of the stop. Picking up washers at the front end of the stop, we achieve a uniform gap width along its entire length. With a 6 mm bar, most likely only two thin washers will come in handy, one on each side.

Pendulum circular with an electric motor

Circular saw performance check circuit.

It is quite easy to make a homemade circular, in order to saw logs and blocks of wood, the thickness of which corresponds to the strength of the electric drive installed on it. If you intend to work with large and very thick blocks of wood, then you should equip your homemade saw with a really powerful electric motor, as well as install a shaft and belt drive on it. The best solution in this case would be to install a special pendulum bed.

When making a pendulum circular with your own hands, only very strong steel corners should be used as the material for the frame. Further, on the finished steel frame, you will need to place all the mechanisms necessary for the normal operation of a homemade circular saw. With the help of this design, you can personally, without any special efforts, set the flight height of the cutting blade, while avoiding excessive design difficulties.

Installing the engine

An ordinary bicycle spindle can act as such a transmission mechanism, without which the operation of any circular saw is impossible. This is often the name of the housing in which the shaft with bearings is located. You can use a hacksaw to cut it off the bike. In this case, the sprocket will not be useful to you, since in this case it is best to take it from the D6 or D8 engine. In order for this sprocket to sit securely on the new shaft, you will need to make an adapter sleeve. Before attaching the saw blade to the bicycle spindle, you need to make sure that it has the correct bore size for you. Now, taking into account this information, it is necessary to set the value of the outer diameter of the sleeve intended for the transition mechanism. The sleeve should be attached to the spindle in several places at once. Next, a plate with a thickness of at least 5 mm should be fixed on the body of the spindle assembly.

Now take a sprocket, about 2-2.5 times the size of the one previously installed on the spindle, and install it on a homemade circular. And at the end of the work on making a saw with your own hands, when all its parts are well fixed, put on the chain and you can use it for its intended purpose.

Electric motor for circular 220V 4kW 3000ob.

Measurement with a mechanical tachometer requires direct contact with the surface of the object.

Now, in the finished supports made of pipes, it is necessary to embed both the lower and upper parts of the homemade saw, and then tighten and tighten the belt with metal thumbs. Do-it-yourself starting the motor in this circular model is carried out using starting capacitors. In order to reload the motor and increase its torque, a 220/36 400 W transformer can be used.

Large DIY circular saw

When making a frame for the top of the saw, it is best to use a 25 mm wide metal corner. In this case, the rectangle, which will represent the frame of the upper part of the homemade circular, should have dimensions of 600×400 mm. Further, in the corners of this quadrangle, four pipes are welded, the diameter of which should be 17 mm, and the height should be approximately 2.2 m.

After that, two corners must be fixed on the frame, on which the bearings will later be fixed. The distance between these corners directly depends on the length of the shaft. Clamps are usually used to secure bearings. It is best if the bearings installed on a homemade circular are of a closed type. This way you can avoid the risk of wood chips falling into the spaces between the balls, rings and the separator. Do not forget to also cut the threads at the very end of the shaft so that later you can install the cutting disc on it.

Circular saw device.

The lower part of the circular saw should be made much more massive, which will provide it with the necessary stability and reliability. Therefore, when making the lower frame, you need to take a corner with a width of at least 40 mm. Further, across the frame, it is necessary to fix two more additional corners, on which the engine of the homemade circular will be held in the future. The most suitable motor for a DIY circular saw is an asynchronous three-phase motor, with a power of at least 1.5 kW and with 1500 rpm. The groove of the pulley should be large enough, about 80 mm, and should be pushed directly onto the shaft itself. In addition, you will need to weld a fairly small metal pad to the frame to hold the launcher. Large pipes 2.2 m long, which were previously welded by you in the corners of the frame, are necessary for high-quality tensioning of the belt so that the metal wings tighten the thin pipes.

Mini Circular Saw: Manufacturing Instructions

How to choose trimming

An electric sawing tool is selected based on your needs. But the best, of course, will be one with a power of at least 1.5 kW.

Based on the power, you can also choose a cutting blade. The more powerful the machine is, the larger the disk can be installed on it. The most common disc is considered to be 250 mm in diameter.

An important factor is the number of revolutions of the disk rotation. Even in production, machines from 4000 rpm are used. Also, when choosing for yourself, pay attention to the fact that 4500 rpm is indicated in the passport.

The next point is the type of engine. Motors can be asynchronous and collector. The first one works quietly and lasts longer. But the trouble is that it is not found on all models. The second type of engine will make you often change brushes, but with it the price will be cheaper.

Next, look at the structure in general and the turning system in particular. Each change in angle must be securely recorded.

And the last but not the least important factor is safety. The shroud must cover the disc securely. See how the sawdust ejection works. The machine must be equipped with a system of protection against overheating and jamming of the disc.

About the author pobeg

The kindest soul man.

How Much Power Do You Need a Circular Motor

Circular from the engine from the washing machine

A useful thing like a working motor from an automatic washing machine shouldn’t be in your garage.

Any self-respecting self-employed hand would scratch at the sight of such a promising detail.

In this article, we will tell you how to make a very good lightweight and compact circular based on such an engine, on which you can easily solve a fiftieth board or even a 10×10 bar.

Attention! Do-it-yourself assembly of a circular saw and its continued use can be dangerous! Therefore, do not accept this case if you are not confident in your skills and do not follow the safety rules! This article is not a call to action. And remember, all responsibility for what you do rests only with you.!

O-ring (REVOLUTION on shafts) Measurement with a tachometer

The drive mechanism should work as follows. The motor from the washing machine drives a shaft with a small pulley. A small belt pulley is equipped with a drive belt that transmits revolutions to a large pulley, which is mounted on a shaft, which drives the saw blade. At first glance, everything seems simple, but when you make a circular, there are many subtle difficulties that you need to solve.

• The small pulley must be pierced by hand, making 3-4 transverse grooves on it, so that the tape sticks to them and does not slip.
• The drive belt should not take the machine from the washing machine, you can take a similar part from any other equipment, if only the belt was strong and toothed.
• The large pulley will need to weld the small diameter disc on its edge to create a kind of protrusion that will not allow the drive belt to drive during operation. On a large pulley, there is no need to grind the serrated teeth, the grip with the belt will be normal without it.
• The shaft on which the circular saw is held, as well as the nut and washer, must be reliable so that, firstly, the saw blade does not deform at high speeds, and secondly, so that the circular saw does not jump out and harm the person working with circular. It is better to take the finished shaft, washers and nut from the factory circular.

The described mechanism is intended for the 300th disc. There are many skeptics who say that the engine will not pull such a disc out of the washing machine and that it will stop at some point during operation and the saw will get stuck on the board. To such skeptics, our specialists answer the following.

In the future, don’t overload your homemade pivot and most importantly, don’t let the engine run for a long time without load.

Recommended posts

How to connect the motor?

Connecting the motor is the most important work step, if you cannot connect the motor from the washing machine correctly, then you cannot make a circular motion with your hands. The whole difficulty is not even in the connection, but in order to achieve a stable control of the engine speed, without this circular motion will not work properly. the drive will break the lumber.

On the engine from the washing machine, the automaker installs a so-called gearbox or speed sensor. But the problem is that the operation of this sensor is controlled by the electronic module of the washing machine, you cannot put such a module in a round one, so you need to think about a device that will control the speed of the engine. Detailed information on how to adjust the motor speed from the washing machine is described in the article of the same name.

Moving parts

After the engine is connected, you can proceed to creating a circular. The next step is the assembly of the movable elements, since it is they that bear the basic load, namely:

• Motor shaft.
• Saw shaft.
• Drive belt.
• Motor pulley from washing machine.
• Saw blade sheave.

The design itself is simple, but there are a lot of points that are important to consider, for example:

• It is recommended to grind the small pulley by making 4 transverse grooves, this is necessary so that the belt clings and does not slip.
• It is not necessary to use a drive belt from a washing machine, you can take any suitable main thing so that it has transverse serrations.
• The saw shaft must be as reliable as possible, which also applies to the nut and washer. Otherwise, the saw may deform, or even jump out and damage the working person.

Large DIY circular saw

It is much better to use a twenty-five mm wide metal corner during the production stage of the saw head frame. Here, the rectangle, which will represent the frame of the top of the homemade circular, should have dimensions of 600×400 mm. Further, in the corners of this quadrangle, four pipes are welded, the diameter of which should be seventeen mm, and the height should be approximately 5.4 m.

Later on the frame, it is necessary to strengthen two corners, on which the bearings will later be fixed. The distance between these corners directly depends on the length of the shaft. To fix the bearings, you use clamps. It is best if the bearings installed on a homemade circular are of a closed type. So you can easily not be afraid that wood chips will fall into the space between the balls, rings, not a separator. Additionally, consider cutting a thread at the end of the shaft so that you can further install a cutting disc on it.

Circular saw device.

The lower part of the circular saw should be made much more massive, which will provide it with the necessary stability and reliability. Therefore, at the stage of production of one of the frames, you need to take a corner with a width of two or more forty mm. Further, across the frame, it is necessary to fix two more additional corners, where in the near future it will hold engine homemade circular. The most suitable motor for a circular saw made in artisanal conditions is an asynchronous three-phase motor, with a power of 1.5 kW at not one thousand five hundred revolutions per minute. The pulley groove should be of an unusually large size, about eighty mm, and should not be pushed directly onto the shaft itself. In addition, you will need to weld a rather small metal pad to the frame, on which do-it-yourself manual welding extruder

Circular with 1.5 kW motor at 1500 rpm 220 volts

Measurement with a mechanical tachometer requires direct contact with the surface of the object.

Which motor to choose?

The first criterion for choosing a motor for a circular saw is power.

It is recommended to choose among engines equipped with a V-belt.

This will simplify the process of transferring revolutions to the saw blade.

To launch a 350 mm disc, 1 kW of energy is required. If you use a 170 mm disc, you need about 500 watts. Therefore, to build a circular, they use the engine of an old washing machine.

In a circular, it is important to be able to control the number of revolutions of the motor, otherwise the saw will simply tear the material. In washing machines, a tachometer is responsible for controlling the number of revolutions, which is controlled by a control module. However, the device does not connect to the circular, so you will have to use a voltage regulator.