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Hand grater with your own hands. Homemade electric grater. How to make a feed cutter from a grinder

If you have domestic large and small livestock on the farm, then you will certainly need a feed cutter, you can make it quite simply with your own hands.

Work technology

In order to make a feed cutter, it is necessary to prepare a bucket, the volume of which is approximately equal to 8 liters. He will need to beat off the bow and cut the bottom using a chisel. Slots should be made in it, the width of which should not exceed 1 centimeter, this figure will depend on what size the output product is expected to receive. You need to arrange the holes in a checkerboard pattern. Using a punch, you can bend these slots so that their lower part is even, while the upper part is rounded. This will be the notch for cutting vegetables.

When a do-it-yourself feed cutter is made, the bucket will need to be circled at both ends with metal strips, which should be fixed with rivets. To these strips, one strip should be attached by welding, each of which should have holes. Their diameter should be equal to 10 millimeters, they are needed in order to drag metal rods through them. It will be necessary to go around the edges of the bucket, which will strengthen the structure.

If a feed cutter is made with your own hands, then at the next stage you need to bend the handles, put them on their straight ends

Final works

At the last stage, you will need to make a wooden stand, at this it will be possible to assume that the feed cutter is ready. An oversized table can act as this element, the front part of which must be strengthened 5 cm lower than the back, this is necessary so that the feed falls out more easily after grinding. You need to put a box on the table, which is useful for laying vegetables in it, while under the feed cutter it is worth installing a tray and a trough that will need to be brought to some dishes.

By turning the handle, you will engage the cutter in the box, while the cuts will accumulate in the central part of the bucket. Due to the fact that it has the appearance of a cone, the feed will go to the front, and then to the tray. At the last stage, the food can be moved to the substituted dishes. When a do-it-yourself feed cutter is made, care must be taken that the walls of the box are set at an angle of 35 degrees with respect to the middle part of the bucket. If, when cutting, the vegetables clamp the bucket, then it will be quite difficult to scroll it. In this case, it will be necessary to increase the angle of inclination of the box, while if the root crops are cut poorly, then, on the contrary, it will need to be reduced.

An alternative way to make a feed cutter

A homemade feed cutter can be made on the basis of an electric motor. To carry out the work, you need to prepare a large steel tank, which can be homemade or purchased. If you intend to make such a structure yourself, then you will need to find a sheet of galvanized steel, the thickness of which is 1 millimeter. The height of the workpiece can be equal to 350-600 millimeters. Due to the fact that the material is quite thin, the rigidity of the structures should be increased by flanging the edges of the barrel with a rubber tube, which acts as a edging.

If you will make a feed cutter with your own hands, the drawings should be considered very carefully before starting work. In the lower part of the case, you need to weld or install with screws a metal bottom, which is made of steel, the thickness of which is 5 mm. First you need to make a hole for installing the shaft of the electric motor and fixing the stand. It is preferable to use a single-phase electric motor; it can be borrowed from an old washing machine.

If you will be doing a do-it-yourself feed cutter from a washing machine, then a hole for the exit of the finished feed can be cut in the place where the bottom and side wall meet. On the hinges below, you need to strengthen the tray, which will look like a box. In order for the structure to be stable, it must be equipped with four inclined legs, which are made using metal pipes. They need to be welded to the bottom of the tank and the support slide, which can be made from blanks cut from pipes.

Features of the manufacture of additional elements of the feed cutter

The most important part of the design is the cutter knives; this component can be made with your own hands. There should be two of them, they are based on a two-handed saw blade, you can use metal popliteal strips, the thickness of which should be equal to 1 millimeter. The knife located below should have a pointed edge, curved like a propeller. Its main purpose is tossing stems that turned out to be undercut. After that, the feed falls on the upper knife. The surface of the working knife should be well sharpened and have cutting edges, the ends of which are preferably bent down, so they will cut better.

A do-it-yourself home-made feed cutter is carried out using a technology that involves assembling knives, these works are not particularly difficult, you will need to prepare the metal parts of the hub on a lathe in advance. The latter, together with the key, will need to be put on the motor shaft.

Launch of the design and features of work

When the homemade feed cutter is ready, its motor can be turned on and the damper closed. Root crops and grass, as well as stems in a small portion, will need to be thrown into the inlet, which is located in the lid. Rotating knives will quickly turn the mass into a homogeneous mixture. Depending on what the degree of grinding should be, it is necessary to leave the feed inside the hopper. On average, it will take about 6 seconds to get the finished feed. If the root crops are large enough, it will take five times more time. After the work has been completed, the damper must be opened and, with the engine running, release the mass from the inlet.
When a do-it-yourself feed cutter is made from a washing machine, you need to ensure the safety of work, for this you need to mount a conical cover on the bunker, which should have holes. For this, it is preferable to use galvanized. In order for the cover not to be dangerous, it can be protected with a rubber tube, which is to be cut along.

The article shows step by step, with photos, how to independently and very simply sharpen the cutting surface of a grater with an ordinary drill, and most importantly quickly, if you don’t disassemble it like me.
Any grater for vegetables during operation loses its cutting properties over time. Sharp edges that turn vegetables into minced meat or delicately sliced ​​strips become dull and torment begins. This is easy to fix and I'll show you how below. Almost all graters are made on the same principle, and this instruction will be applicable to almost any type of grater.

Not very long ago, my wife bought a nice, not very large vegetable grater and, as often happens, put her purchase in the closet. It looks all right.


Then, when it was necessary to grate vegetables, she took it, tried to use it for its intended purpose and was disappointed with this seemingly high-quality thing. She didn't want to do her job. I examined it and found that the cutting edges on the grater are completely blunt. German quality is written, but as often happens, apparently, it was made by our neighbors from China. Like it or not, you need to sharpen. But before sharpening, I decided to disassemble it, for better sharpening. It is easy to disassemble and the photos show how to do it. The main thing is not to rush and do everything carefully, with feeling, really, with arrangement.



Here is the hero of the occasion, the drum that does not want to work.




In order to disassemble the drum for sharpening, you need to remove the retaining ring from the latches. Be careful not to break them. Carefully pull the drum to the left, as in the photo.





We measure the diameter of the holes, I got 2.5 mm, we take the same drill, preferably very good and new. We insert it into a screwdriver, drill, drill, etc. The main thing is to have as many turns as possible and at a large angle, as in the photo, we drill all the holes. Get very sharp edges. Q.E.D.


If desired, these sharp edges can be made even sharper if you use a drill and a diamond burr to go through all the holes, but this is optional. And the sharp edges can hurt your hands. The sharpening method with a diamond bur can be used continuously if the cutting edges of the vegetable cutter are not severely blunted.
Most vegetable graters can be sharpened using this method. It is only necessary to select drills according to the diameter of the holes, since the graters are different.
Tests on vegetables have shown that the method works well.
That's all. Ask questions, comment, share on social networks.

A household vegetable chopper is able to process any succulent feed into a homogeneous mass, which can be used as an independent feed or as part of a mash. Prices for a feed cutter start at 3,500 rubles, but despite the availability, many farmers prefer to collect it on their own.

A do-it-yourself device does not differ in functionality or performance from a store-bought counterpart. The cost of such a feed chopper will be lower - it is made from materials available in each household. The cost of replacement parts will also be lower.

The basic model is designed for processing vegetables, root crops and fruits. If you have an additional set of figured double-edged knives, then the device is also used for grinding grass, hay and needles.

It is necessary to load grass into the working chamber in small portions, otherwise clogging of the engine cannot be avoided.

When working with a homemade electric feed cutter, you must follow the safety precautions:

  • Stop work immediately if smoke or sparks appear,
  • Do not leave a working feed cutter unattended,
  • Be careful when loading vegetables into the oven,
  • Do not touch the working shaft of the switched on device,
  • Disassemble and wash the feed cutter only after disconnecting from the mains.

Types of homemade vegetable choppers

Manual feed cutter

To prepare feed for several cows, chickens or piglets, you can use a simple version of a vegetable cutter. The device works on the principle of a grater, but differs in productivity: it can be used to process up to 10 liters of vegetables or fruits in 10-15 minutes.

As a grater, an ordinary galvanized bucket with a volume of 10-12 liters is used. The bow is beaten off from it and the bottom is cut out, and holes are made in the walls. The edges should be as sharp as possible, and the dimensions should be from 0.2 to 1 cm. The grater will be more effective if you punch holes in a checkerboard pattern.

For structural strength, the bucket is fitted with metal stiffeners at both ends. Hard metal strips are welded to them, in which recesses with a diameter of 1 cm are pre-drilled. A piece of reinforcement is pulled through the holes, circled around the edges of the bucket and bent in the form of a handle.

To supply raw materials for processing, a receiver is installed above the bucket - it can be a wooden or metal box with a broken bottom. Attach the receiver to a wooden frame with bolts or self-tapping screws. The final stage of assembly is the manufacture of the base. It is knocked down from a durable beam in the form of a table. The front part must be strengthened with additional rails, and made 5-7 cm lower than the back.

The root crop grinder works like this: the rotation of the handle drives the drum. Since the bucket is cone-shaped, the cutting will be pushed into the front, and from there into the substituted container. Vegetables and fruits are crushed under the force of their own gravity.

grinder from a grinder

An electric homemade vegetable cutter is made using an engine from a grinder. The simplest option is a disk feed cutter with a vertical feed of raw materials.

The power of the machine is sufficient for shredding:

  • beets,
  • Turnip,
  • potato,
  • carrots,
  • sweet potato,
  • turnips,
  • rutabaga,
  • pumpkins,
  • Zucchini and squash,
  • celery,
  • radishes,
  • radish.

To assemble a grinder from a grinder, they begin with welding a metal frame, at least 5 mm thick.

The frame is made on legs: the minimum distance from the ground to the motor is 20 cm. A hard steel disc is used as a cutting element, which is equipped with four knives with serrated blades. Knives are easier to make from old hand saws: for this, two plates are cut out of the canvas, about 50 mm wide. The disk is installed in the working chamber so that there is a gap of 1 cm between the edge of the knife and the wall. A large bucket, a frame from an old washing machine or vacuum cleaner, or a metal barrel can serve as a working chamber. Another option is to weld the chamber of the desired shape from steel sheets.

The cutting disc is attached with adapters, and a receiving hopper is mounted immediately above it. They make it from an ordinary bucket with a broken bottom. An unloading hole is cut in the lower part of the chamber, under which a box for chopped vegetables is installed. The engine is used from a grinder: it is attached to the cutting unit using several couplings, and connected to the shaft using a drive belt.

Barrel vegetable cutter

How to make a root crop chopper with your own hands from a tank or barrel:

  1. If the working container is welded independently, then it is better to use steel, 1.5 mm thick,
  2. Rigidity to the walls is given by flanging the edges with rubber tubes,
  3. The bottom is made of a steel sheet of 5-6 mm,
  4. A hole is drilled in the center of the bottom for installing the motor. For this model, a conventional single-phase motor is suitable,
  5. An unloading hole is cut out at the bottom of the barrel, under which a tray or box is placed,
  6. The body is installed on four legs from a cut of pipes or a corner,
  7. Two knives are installed inside the working container,
  8. The upper knife is made double-edged with the edges bent down,
  9. The lower knife is made in the form of a propeller with one cutting edge,
  10. The shaft is connected to the engine by means of a chain drive.
  11. The dimensions of a homemade barrel depend on the thickness of the steel used. If you use a sheet of 1.5 mm, then the maximum wall height should not exceed 60 cm.

Crusher knives are made from a hand saw blade - the size should be one centimeter smaller than the diameter of the working chamber.

The role of the upper knife is chopping, and the lower one is tedding and raising uncut feed particles. To set the size of the crushed feed fraction, a sieve with the desired mesh pitch is installed on the unloading opening. Depends on the purpose of using ground vegetables: for feeding adult cattle and small cattle, pigs, horses and rabbits, a sieve with a cell of 0.7-1.2 cm is suitable. For feeding young animals and poultry, it is better to use a smaller size: 0.2 -0.7 cm.


In this article, we will present to your attention the idea of ​​\u200b\u200bmaking your own spiral grater. The manufacturing process is extremely simple, but the result will definitely surprise not only you, but also relatives and friends.

What we need:
- hacksaw for metal;
- PVC pipe;
- blade from a clerical knife;
- glue gun.


First of all, retreating from the edge of the pipe by about 10-20 mm, we make an incision with a hacksaw to the middle. According to the author, the incision angle should be chosen individually, since the thickness of the incised carrots or cucumbers depends on this angle.




After making an incision, we take a clerical knife and cut out all the burrs.


We measure 20-25 mm from the incision made in the previous step and cut off the pipe.


Again we process the incision site with the same clerical knife.


The blank for the final assembly of the future grater is ready. At this stage, you need to thoroughly rinse it with alcohol and disinfect. The blade from a clerical knife must be boiled in water for about 10-15 minutes, then lubricated with vegetable oil so that the blade does not rust in the future.


Now insert the blade into the notch.

We take a marker and mark with lines the places that remained outside the pipe.


With wire cutters, carefully break off all the excess.


Finally, so that the blade does not accidentally jump out of the incision made, we drip a few drops of hot glue into the incision.

Grinding even a dozen carrots on a manual grater is a laborious task, but if you need to prepare pet food, process a lot of vegetables and fruits? I got out of the situation with a simple electric grater. I used an electric motor with a power of about 200 W, with a nominal shaft speed of 1400 rpm. (A motor from a household electric grinder is quite suitable; you can also use a three-phase asynchronous one, with a capacitor circuit for connecting to a single-phase network.)

The working body of the grater is a round steel disc with a thickness of 1.5 and an outer Ø300 mm. The cutting edges in the disc are formed by extruding the edges of holes Ø8 mm drilled in the disc in mutually perpendicular directions. Each row contains 5 holes spaced 16 mm apart, and offset in the radial direction with respect to the adjacent row by 1/2 interval. Thus, two groups of cutting edges are obtained, completely covering the working area with a width of 80 mm. To obtain a different degree of grinding, a disc with holes of a different diameter will be required. The rigidity of the disk in the axial direction is reinforced by double rolling of the edge, and from the back side by the radial installation of four steel or duralumin corners.

It is more convenient to fix the disk on the motor shaft on the landing sleeve. Four short bolts are screwed into its flange from the inside, on the cylindrical shanks of which, like pins, a grating disk is mounted. The sleeve is fixed on the shaft with a radial bolt, the shank entering the keyway, and the axial bolt through the clamping washer. The direction of rotation of the motor shaft is counterclockwise.

1 - loading wedge, 2 - hopper, 3 - front side of the casing, 4 - connecting strip of the casing, 5 - grater disc, 6 - bearing side of the casing, 7 - electric motor, 8 - table, 9 - cutter

1 - hopper, 2 - loading wedge, 3 - sidewall, 4 - casing, 5 - bearing sidewall of the casing, 6 - motor flange, 7 - stiffening angle, 8 - grater disc, 9 - disc mounting bolt (4 pcs.), 10 - radial bolt fixing the bushing, 11 - axial bolt, 12 - motor shaft, 13 - disc washer, 14 - bushing.

The casing of the grater consists of two plywood plates 10 mm thick, a hole for the shaft is cut in one of them, and a loading window in the second. The latter goes into a bunker, bent from a metal sheet, and equipped with a wooden wedge - for the safe supply of root crops to a rotating disk. The sides of the casing are connected along the perimeter with a metal strip so that an exit window is formed from below.

It is best to mount the casing directly on the engine housing, but if it does not have a mounting flange, then the bearing sidewall should be firmly fixed on the horizontal engine support - a small stable table. On his working board it is useful to attach a cutter for preliminary grinding of fruits.