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Why they get dull and how to sharpen knives from a meat grinder on your own. How to sharpen meat grinder knives at home How to sharpen meat grinder knives at home

Almost every home has an electric assistant that will quickly grind meat into minced meat of any consistency, help you squeeze juice, cook original cookies or homemade noodles, pasta, and some craftsmen make meat delicacies. During operation, there comes a moment when the question arises, how to properly sharpen a meat grinder knife? What needs to be done for this - we will tell in our article.

Today, buying new knives for manual or electric meat grinders is not a problem, but why spend money when they can be easily sharpened. As a rule, users are faced with the problem of blunting the knife directly in the process of preparing minced meat: everything was just fine, and suddenly the technique jams the meat the process is out of control.

If the knife is dull, then do not be upset - everything can be fixed within half an hour. You just need to find a grindstone or an emery cloth and start sharpening the knives yourself according to the recommendations that we will provide you.

Remember! A perfectly sharpened cutting tool saves time using the device, if it is a manual type, then your strength, and if it is electric, it saves energy consumption.

Before you start sharpening meat grinder knives, you need to figure out why they get blunt, because manufacturers claim that when they rotate, they self-sharpen against the metal of the grate. Meat is a soft substance, but small cartilages and strong veins are often found in it, which contribute to the gradual rounding of the cutting edge, and it becomes dull. The product begins to chew on the product, and eventually stops processing it altogether. Therefore, at the first sign of incorrect operation of the cutting tool, stop working, proceed with the dismantling and subsequent sharpening of the knives.

Rotating parts different models differ in appearance but they work exactly the same.

Rules for doing work

Before you sharpen the meat grinder knives yourself at home, you need to study their principle of operation, otherwise it will be difficult to achieve a positive result. The cutting movable tool always works paired with a fixed grid, which has holes throughout the plane, and they need to be sharpened together. This part rotates together with the screw and four blades begin to grind the product, which penetrates through the holes under pressure. In this way, a difference in grinding is achieved, since several options for the grate are used: with small or larger perforations.

During sharpening, you need to pay attention to each edge of the blades so that they have a sharp cutting edge.

First you need to prepare everything necessary materials to complete the entire process with high quality and comply with the basic rules.

Check the surface on which you will sharpen the knives with thick metal ruler- attach the butt and make sure that there is no gap. Put the paper or circle on the table, firmly fix it. It is better to put a piece of Plexiglas under the sandpaper for better horizontality.
At the beginning of work, grease the blades and the polished surface of the grate sunflower oil and leave for a few minutes. Surfaces to be sharpened should also be lubricated for better contact and the formation of a kind of abrasive paste that protects the knives from minor scratches. When sharpening on a special water grinding wheel, it must be moistened with water, not with oil.
To treat the entire surface evenly, use clamp made of wood. It is necessary to press in the center of the knife or lattice, make circular movements evenly, with a little effort pressing on the tree.
After sharpening a four-bladed knife, it is necessary to sharpen the grate, the edges of its perforations also wear out during operation.

Sharpening methods

In this section, we will tell you how to sharpen a meat grinder knife using the simplest do-it-yourself tools.

abrasive stone

For proper sharpening, it is better to purchase a corundum grinding stone with a diameter of 180 mm and a grain size in the range of 40-60 microns. Then put it on a flat surface, water it with tap water or moisten it constantly, because the whole process must be carried out with her participation so that the metal is constantly cooled.

To prevent the stone from moving on the table, they put it under it dense matter. Take the knife and start making rotational movements clockwise. For better contact, use a clamp from a piece of wood, pressure should be applied to the center of the knife, and with your free hand you can fix the grinding wheel.

Important! The oxidation film should be removed evenly over the entire plane of the cutting tool, make sure that there is not the slightest distortion, the quality depends on this.

After the knife, do not forget to sharpen the grate by doing the same and checking the process visually. If the surface to be sharpened is smooth and shiny, everything is done correctly. Then you need to check the fit of these parts, because they work in close contact, and there should be no gap between them.

Now you can assemble the meat grinder and check the operation of the ground parts in real living conditions.

Grinder

This is the most convenient way to sharpen knives, but it is not suitable for everyone: if you do not have the skill to work with such a device, then only do manual sharpening. How to sharpen a knife for a meat grinder on such a machine? We use the side smooth surface of the grinding wheel, on which we first apply special paste with fine abrasive, after it dries, everything is ready to work. We press the Start button and carefully press the part to the side surface. During sharpening, it is necessary to visually check the quality, giving the metal time to cool, so that in no case will it be burned to a tint color - a characteristic color of an overheated metal surface.

We perform the same actions with the lattice, only it is better to use wooden clamp so as not to injure your fingers. The technique is identical to sharpening a four-bladed knife.

This option has some downsides:

I remember my childhood: the sixties of the last century. Oh, what delicious dumplings my Ural grandfather made!

He brought veal, beef, lamb, pork from the market. He laid out portions in a wooden trough, chopped minced meat with a sharp figured cut, and did not recognize a meat grinder. He said that she even sharp knives crushes the meat, destroys its taste.

However, we will analyze how to sharpen a knife from a meat grinder at home. After all, now hardly anyone will chop meat by hand.

How a meat grinder works: in simple words

When the handle is turned, the auger shaft pushes the meat forward. It fills the holes in the grate and is cut off by the four blades of the movable knife.

High-quality cutting of meat occurs when a four-blade knife is pressed tightly against the grate: both of these elements work to cut the fibers,

The precise fit of the knives and the elimination of the gap between them is ensured by:

a washer mounted on the auger shank;
clamping round nut for fastening the shaft.

If the thickness of the washer and the stroke of the nut thread are not enough, then a gap will appear between the movable knife and the grate, which will not allow you to chop the meat with high quality.

Blunt edges of the knife and potholes on the grate plate greatly impair the quality of the meat grinder.

How to simply sharpen a movable knife

The cutting edge of each blade is formed by the angle of intersection of the plane of contact with the grating and the side.

Its value >70÷80 degrees is formed by the plant. When sharpening at home, it is recommended to keep the set size. Therefore, the approach angle is restored by sharpening in two planes.

How to securely straighten the side surface of a meat grinder knife

This side can be corrected in all the ways that are most popular at home processing on:

emery wheel;
bar;
grindstone.

Emery wheel

The position of the knife is shown in the photo.

However, here you can clearly see two mistakes that beginners often make:

Large granularity of the stone;
worn out side surface emery circle.

They should not be allowed: the knife will be damaged.

Sharpening on a bar

Each knife blade on the side is alternately processed on a whetstone.

It should be fixed strictly in the plane of the factory corner. If the knife deflects due to a loose fit, then good result will not.

Sharpening on ceramics

Homemade from ceramics. Of course, they are inferior in quality to a professional set of tools, but they allow you to perform household tasks well.

Metal filings will begin to settle on the grinding stone. They must be washed off periodically with water.

How to fix the knife in the main plane

At home, two methods are most available:

Sharpening stones, stones, ceramics with a fixed sharpening plane;
Fine-grained sandpaper - zero.

Sharpening on ceramics

The knife is placed with its main plane on a hard abrasive material. Press it with your fingers in the middle part, ensuring a uniform fit of the surfaces, and rub it in in a circular motion.

Sawdust formed on the stone should be washed off.

Sharpening on sandpaper

This technology repeats the work on hard abrasive material. However, sandpaper is easily deformed and wrinkled. Its bends non-uniformly process the metal.

Therefore, sandpaper is placed on a hard surface (steel plate, thick glass), fixing different ways. You can just wrap it with a wooden block.

How to control the quality of sharpening

The surface to be treated should be periodically visually inspected in bright light.

It will allow you to clearly see the process of removing oxides, burrs, removing cracks and dents. The work is carried out until the surface of all four blades is completely leveled.

Secrets of sharpening a fixed grate

It is more difficult to process a mesh knife:

the inner cavity of each hole is not available for processing, and it is the second side of the angle forming the cutting edge;
the contact surface with the movable knife is large;
the requirements for the accuracy of processing the plane are high.

What you need to know about stone

For processing it is best to use a new abrasive material with a fine grain and ideally flat surface. It is checked with the side of the metal ruler against the light, applying it to the working plane of the stone in various positions. So any irregularities will be clearly visible. You cannot work with a defective stone.

The working area of the abrasive material on each side must be at least twice the diameter of the mesh knife circle.

Tricks of technology

The grid must be evenly pressed against the surface of the abrasive material. To do this, three fingers are placed on it at once.

They create the same pressing force of the treated surface to the abrasive. The grate is driven with small turns in the horizontal plane, slightly rotating around the axis. In this case, the metal is removed evenly.

Features of wetting with water

The bar and the grate must be moistened: an abrasive paste is created from the spent particles.

At the beginning of processing, when an excess layer of metal with broken geometry is removed, this paste speeds up the processing process.

However, at the end of the process, this abrasive paste must be frequently washed off: penetrating into the grating holes, it destroys the vertical wall and distorts the angle of the cutting edge.

Working with a bar

The sharpening process must be controlled by the accumulation of sawdust on the stone and traces of abrasive material at the knife: scratches on the metal should be distributed randomly.

Sharpening with sandpaper

The technology is the same, but they additionally control the even state of the sandpaper surface.

How to easily check the quality of joint work of knives

Knives already sharpened to a satisfactory state shine, reflect bright light.

Lapped surfaces after sharpening are well retained.

However, you should put the movable knife with the blade on the grate and evaluate the amount of clearance in several positions. The maximum deviation of the surfaces is permissible in the thickness of our hair.

It is very difficult to perform a more precise fit of the surfaces: polishing machines with a special set of abrasive discs are needed.

This is already professional metalworking, and we are considering the question of how to sharpen a knife from a meat grinder at home with the most affordable tool.

If you still have any questions, please use the comments section. I will answer with pleasure.

Cutting parts options

The meat grinder is one of the most popular kitchen appliances. It was invented two more centuries, so it can even be called a historical instrument that has become indispensable.

When it comes to a meat grinder, first of all, thoughts of delicious meat dishes appear. But the range of use of this element is wider. With it, you can cook not only stuffed cutlets, but also sausages, zucchini caviar, various types of sauces and even shortbread cookies. This is not the whole list delicious meals which can be prepared using a meat grinder. The principle of operation of the meat grinder is practically unchanged, whether it is manual or electric. As we know, absolutely any devices must have proper operation, they should be carefully looked after. In a meat grinder, knives need care, which must be sharpened periodically. Sharpening knives for a meat grinder can be done at home. How to do it? This article will answer this question.

The principle of operation of the elements

Scheme of assembly of meat grinder spare parts

To sharpen a meat grinder knife at home, you need to know how they do their job. If we consider the device from the top, namely the tray where the meat is placed, then you can notice the auger. It has rotation due to the handle of this kitchen tool (if mechanical control) or an electric motor. Thus, the meat pieces are delivered to the cutting edges of the apparatus.

Many may not know, but this tool has two cutting elements. The first one is a mesh-shaped knife, which has holes and is stationary, the other is a four-blade knife that rotates. The process consists of two stages:

First, a movable four-bladed tool grinds the meat pieces.

Quadruple cutting element

Then they are pushed through the mesh knife.

Mesh protecting the knife

The very procedure of grinding pieces of meat should not be uncomfortable. This is achieved thanks to correct installation cutting tools and their sharpening. The first sign that the cutting elements are becoming blunt is an increase in your efforts when twisting the product. Simply put, if the procedure takes place with some inconvenience, they should be sharpened.

There is a second sign that indicates that cutting tools need sharpening. It can be found when cleaning the meat grinder. If the meat fibers are stuck between two knives, then this means that their fit is loose. They just need to be corrected.

Basic information

Consider some of the information and features of the cutting tools of the meat grinder:

Cutting quality various kinds products are largely independent of the sharpness of the cutting edge. Ideal evenness of the working surface is the key to the quality of cutting products. Therefore, this is the main goal during sharpening.
Sharpening at home is carried out only with the help of abrasive material, which has small fractions. This material allows you to maintain a snug fit between the two types of knife.
Sharpening must be manual, without the use of any additional electrical tools or apparatus. The main reason is that steel can be overheated. This will lead to the fact that this cutting element will become unsuitable for further use. It will only be thrown away. Sharpen by hand.
During the procedure, the work surface must be treated with an abrasive by the part that comes into contact with the disk after the assembly of this kitchen appliance.
Both types of device are processed.
Before sharpening, the cutting components must be thoroughly rinsed and dried.

Sharpening methods

Sharpening with a whetstone

Sharpening knives for a meat grinder is an easy procedure, so it can be done at home. You just need to have a grindstone or sandpaper at your disposal. As such a tool, you can use not only them, but also other abrasive products that have a fine grain size.

Possible tools that are used for processing:

First of all, a bar can be used.
Another option is an abrasive wheel.
And another tool is sandpaper. Sandpaper is used to wrap any tool that has a perfectly flat surface.

It is acceptable to use sandpaper for sharpening cutting elements

How to sharpen a movable meat grinder blade? For this procedure, the cutting tool should be attached to the grindstone. Next, the grindstone scrolls several times. Make sure that you can press the device tightly. Circular movements of the grinding tool should be made counterclockwise. This is done so that the cutting edge does not get damaged. After such processing of the knife, you can look at it. If the sharpening was successful, then on the surface of this cutting tool, you will notice areas that shine. This means that the metal has come through, and before that, oxides have been removed. If all dark oxides have not disappeared from the surface, then the procedure can be repeated.

If you are using an already old and rusted knife, then it is best to process it first using a grinder. In the event that you do not have a grinder on hand, then there is an alternative.

This is a very specific method. Find a bolt that matches the diameter of the tool's hole. Thread a bolt through this hole and insert it into the chuck of an electric drill. The electric drill should work at low speeds, while the reverse stroke (reverse) should be used. After that, it must be carefully leaned against the abrasive product. Apply with a flat surface. A kind of - it is also a grinding machine. Of course, in order to bring to the ideal sharpness, its sharpening must be manual.

By far, the most sharpened tool you can get from the hands of specialists who have at their disposal a flat grinding machine suitable for sharpening meat grinder knives. Such a specially designed device removes a smooth steel layer from the surface. It also adjusts the cutting edges at the required angle. Yes, to see such a device is challenging task, but there are workshops where you can use this service.

But how to sharpen a lattice knife? Sharpening this type of cutting tool is practically no different from the previous one. The peculiarity is that you will need more patience. Only that part of the cutting tool with which it comes into contact with the moving knife is sharpened. It is necessary to straighten this side very carefully. If a slight misalignment is allowed, then there will be no tight contact between the cutting components of the device. Even if they are perfectly sharp, you will not be able to cook high-quality minced meat.

There are tips that will help you to carry out better and faster sharpening:

Carry out wetting of the abrasive wheel or sandpaper. Thanks to this, the smoothest surface can be achieved. And the cutting element can be dipped in oil.
For processing a mesh knife, it is best to use an abrasive cloth that has a large size.
When sharpening, move the cutting object over the entire surface of the blade.

These tips are the most effective.

The meat grinder is one of the best inventions for home use. She will twist the meat and other products. Many consider it an almost indispensable item, and therefore it is especially unpleasant when the cutter in the meat grinder is treacherously dull during cooking. In this case, it is necessary to resolve the issue of how to sharpen knives for a meat grinder.

Why does a meat grinder blade get dull?

Over time, even the highest quality mechanism can deteriorate. This problem does not bypass the cutter in the meat grinder. This happens due to the fact that in the place where the grate is pressed against the knife, a small depression is formed. In some cases, the cutter itself may become dull if the quality of the blade is poor.

Important! The distance between the mesh and the knife is very important. After all, the smaller it is, the better the meat will be cut and the meat grinder will be easier to work with.

Over time, the distance increases due to wear, in addition, the following factors can contribute to this:

When grinding meat, pieces of bones and veins grind metal like an abrasive.
The mesh and the mechanism are made of black metal, over time they tend to oxidize and rust, as well as lose their sharpness.

Sharpening blades for a meat grinder is not a difficult process. Use one of the following methods to complete the operation.

Where to begin?

To sharpen meat grinder knives at home correctly, it is best to organize this process correctly. This can be done in the following way.

Before any sharpening method, properly prepare the cutter. This is necessary to improve the quality of their work, as well as to ensure that the sharpening tool does not deteriorate immediately.

Before process:

Lubricate the blades with ordinary sunflower oil.
Let the blade dry for 5 minutes.
Lubricate the sharpening tool with sunflower oil and let dry.

Important! The above procedure will keep the blades from splinting if the blade is turned incorrectly during operation.

How to sharpen a knife at home?

There are several ways to properly sharpen a meat grinder knife. Let's consider them in more detail so that you can choose the most convenient and suitable for you.

Method number 1. Sharpening on a special machine

Use a special machine designed for sharpening meat grinder blades. This mechanism looks like an ordinary disk and has a smooth abrasive surface.

Sharpening the cutter on such a machine is necessary as follows:

Before sharpening, apply a special paste intended for this purpose to the disc. As part of such a paste - the smallest abrasive particles.
Let the paste dry. After that, the disc will be rough and ready to go.
Turn on the machine - the circle will begin to rotate.
Take a knife and gently press against the disk with the blades.

Important! Sharpening is carried out in several stages with breaks. The metal must have time to cool and not overheat.

Disadvantages of this method:

The complexity of sharpening in the absence of skills. Anyone who has not worked with meat grinder blades will not be able to sharpen them on the machine at the right angle.
Not safe.
The design of the machine costs a lot of money and it is not so easy to purchase it in a regular store.

Important! It is better to entrust the work on sharpening on the machine to a specialist.

Method number 2. Using a whetstone

This method can be used in two ways: the first is to move the stone, and the second is to use the grinder cutter. Both options are quite effective and allow you to sharpen meat grinder knives at home with high quality.

The stone turning method is a more radical method that makes it possible to sharpen even a very blunt mechanism. For this procedure, use a stone with a fine grain fraction.

Important! Sharpening will be achieved by friction on the surface. You can use a stone for this procedure the same size as a knife.

Proceed as follows:

Wear a mitt on your hand to avoid injury.
Take the cutter in this hand.
Take a stone in your other hand.
Press the stone firmly against the knife and move in a circle.

Important! For efficiency, secure the cutter so that you do not hold it yourself and then sharpen with a stone.

After finishing sharpening, let the metal cool slightly.
Rinse the mechanism under running water cold water to remove any remaining metal.

Important! With this method, cardinal sharpening occurs as a result of strong adhesion of materials.

The way to rotate the cutter is as follows:

Prepare a whetstone with a surface area of 2-3 times the diameter of the knife. The fraction of the stone must be very small, otherwise the sharpening process will be long, and the work will not be of sufficient quality.
Place the cutter in the middle of the whetstone - the blades should fit snugly against the surface.
Holding the mechanism with your finger in the middle, make circular movements with a knife.
Gradually increase the speed of rotation by applying force to the blade.
Check the uniformity of the blades from time to time. Only after they all become equally homogeneous, without nicks and irregularities, finish sharpening.
After finishing the procedure, let the knife cool down and rinse under running water.

Important! This sharpening method is suitable for blades that are not too dull; in a severely neglected case, it is useless.

Method number 3. Sandpaper sharpening

To sharpen the meat grinder knives in this way, you must use sandpaper. Select the thickness, depending on the thickness of the knife. Thicker metal requires a larger fraction of grains, small, thin ones - it is good to sharpen even on weak paper.

To sharpen a knife:

Take a knife in one hand and sandpaper in the other.
Wipe each blade in turn with paper.
Perform the movement as if you were carefully wiping the surface with paper.
After the procedure, let the knife cool down and rinse it under running cold water.
Wipe the knife thoroughly and dry.

Important! Sharpening meat grinder knives does not end with grinding only the blades. The grate also plays an important role in the process of cutting meat. The grate is sharpened in the same way as a knife: in a circular motion.

If the above methods are too complicated for you, and you need to sharpen the knife, then instead of the grate, try placing a plastic or wooden circle in the meat grinder with sandpaper glued to it. Turn the handle and the blades will become sharp after 20-30 turns.
If the work surface has exhausted its resource and no sharpening method has helped, buy a new mechanism.
Do not trust manufacturers who write about self-sharpening knives. Knives that do not blunt simply do not exist. Forged, very sharp mechanisms are used in professional equipment. They serve an order of magnitude longer, but it is not rational to use them at home.

An old manual or new electric meat grinder in the house is simply a must. Cooking minced meat is a matter of a few minutes, but this requires a working meat grinder that will not let you down in the midst of work. And if the unit started to malfunction, the answer is always the same - dull knives. So the question arises, where and how to sharpen a knife for a meat grinder, if it is necessary at the most crucial moment.

The device and principle of operation of the meat grinder

To understand how knives work and why it is necessary to constantly monitor the condition of the cutting surfaces, consider the device and the principle of operation of the unit.

The meat grinder consists of the following units:

cast body (cast iron or aluminum alloy);
cast auger (cast iron or aluminum alloy);
movable four-bladed knife;
fixed grate with many holes;
large front nut;
handle for rotating the auger (in electric meat grinders - an electric motor).

The meat is loaded into the receiving hopper, from where it is fed to a fixed grid with the help of an auger. Here, the process of cutting meat between the fixed mesh and the movable four-bladed knife takes place. Chopped meat in the form of minced meat is pressed through the mesh holes into the receiving container.

When sharpening is needed

To understand why sharpening is needed, it is necessary to understand the operation of all the details during the production of minced meat.

When buying a meat grinder, all parts are brand new, as they were not used. Therefore, the knives have an ideal contact surface. This is very important during the operation of the unit. The perfect cut another portion meat entering the working area of the unit.

But after some time of operation, the meat grinder starts to malfunction. If the unit is manual, then you have to make more effort to rotate the handle. At electric drive, there are interruptions in the rotation of the auger, overheating of the electric motor and its breakdown is possible.

With an ideal way out, it is enough to buy spare parts in the store and, after replacement, continue to work quietly. But this option cannot suit the hostess. After all, buying parts is not economically viable. It is necessary to figure out what is happening and how you can get out of the situation without buying new parts.

What's going on with the grinder

After buying a meat grinder in a store, you need to read the instruction manual. Almost all manufacturers assure buyers that the knives of their unit do not have a wear period and even sharpen themselves. Allegedly, during operation, the movable cutter, in close contact with the fixed mesh, slides over it and mutual self-sharpening occurs due to friction. But in reality we don't see it. Indeed, even in electric meat grinders, cutting parts are made not from high-quality steel, but from ordinary steel.

When grinding the product, tendons, all kinds of inclusions, up to small fragments of bones fall. As a result of such work, the usual blunting of the cutting parts occurs and the minced meat grinding process is disrupted. After a while, the meat grinder simply does not grind the meat, but crushes it. That's when the question arises, where to sharpen the knives for the meat grinder.

Sharpening knives for meat grinders

So that you are not tormented by the question of where you can sharpen the meat grinder knives at the time of minced meat production, try to regularly inspect the parts. To do this, simply disassemble the unit and inspect the condition of the cutting units. If the surface is covered with rust, it must be pierced to prevent destruction by corrosion. You always have a choice: where to sharpen knives for a meat grinder.

If you prefer to entrust this work to specialists, then you can contact one of the sharpening centers of specialized enterprises in your city.

Sharpening knives in the workshop

If you decide to sharpen the cutting parts in the workshop, then this must be done in advance. It is necessary to inspect the meat grinder once a month and identify all defects.

In the workshops, the Adems grinder is used for sharpening and sharpening abrasive stones are used.

If you have such a machine in your home workshop or garage, then you can sharpen knives at home. Let's see how this can be done.

The machine consists of an electric drive and a horizontal faceplate. To perform this operation, you must:

lubricate the plan washer over the entire surface with oil;
sprinkle abrasive powder on the lubricated surface and distribute it evenly over the faceplate;
turn on the machine and, using a magnetic holder, install the knife on the faceplate with the surface to be treated, pressing it in the center.

After surface treatment, another element is placed on the machine. Thus, the horizontality of the working surfaces working in a pair of parts is achieved. The next operation is the sharpening of the edges of the movable four-blade cutter at an angle of 80 degrees on a sharpening abrasive. The final touch is the grinding of the cutting edges of the movable knife and the horizontal surface of the grate on the vulcanite stone.

Sharpening at home with sandpaper

What to do if you understand in the process of minced meat production: meat is not cut, but "chewed"?

You can sharpen knives at home. The easiest way to sharpen the cutting element is at home with your own hands. You need sandpaper for sharpening fine-grained knives. It is not advisable to use a coarse-grained skin, as this can damage the surface of the knife. After all, when sharpening knives in this way, one should not allow a lot of wear and damage to the cutting surfaces.

Sharpening is carried out on a perfectly horizontal surface. Having fixed a sheet of paper, we begin to rub it with the treated surface of the knife until we achieve a clean working surface. We do the same with the other knife. Having finished processing, we check the parallelism of the surfaces in the light. It would be ideal if no gap is visible between the cutter and the grate.

You can check the meat grinder with the help of threads inserted through the grate of the meat grinder when assembled. Turning on the electric meat grinder, the cut threads should fall on the table.

On the grindstone

You can sharpen knives using whetstones. To do this, we buy a corundum grinding stone from 40 to 60 microns in the store. We make a platform from the board to strengthen it and provide water supply during work. Having strengthened the stone on the stand, having previously moistened it with water, we begin to sharpen the movable element, making circular rotational-translational movements. In this case, a finely dispersed abrasive paste is formed, which brings the surface to grinding. Periodically rinse the cutter in water. When a shiny surface is reached, the part is considered ground.

We process the grid in the same way. At the same time, we check the fit of the knives to the clearance of the surfaces. If there is no gap between the applied working surfaces, then the result of sharpening is achieved and the meat grinder can be tested in operation.

On a grinder

The two previous methods work if the wear of the cutting parts is insignificant, you just need to make a small reconstruction of the cutting edges and contact surfaces. With more serious wear and damage, a grinder will help you.

When starting work, it is necessary to check the condition of the working disk of the machine. It should be perfectly flat and should only be used for sharpening work..

It is necessary to apply GOI No. 4 paste on the working surface of the disc and let it dry.
Then we turn on the machine and when the disk picks up speed, we begin to work.
Pressing the mesh to the disk, we process until a uniformly shiny surface is obtained.

When processing a knife, it is necessary to work intermittently in order to prevent overheating of the workpiece.

Then we proceed to sharpening the four-bladed movable cutter. Here the work is carried out in stages..