One of the most popular crops in the world is potatoes. To reduce labor intensity and make maintenance easier planting material, many manual and mechanized devices have been invented. On an industrial scale, these are tractors with various types of attachments. In the private sector good help will become a motorized cultivator, for which it is quite possible to make hillers with your own hands. After all, with the help of a walk-behind tractor, you can cultivate the area for potatoes much more efficiently. Therefore, let's look at the main types of potato hillers for walk-behind tractors.
The hiller greatly simplifies the work of caring for potatoes
Listed version
The simplest type of hiller. It consists of two half-wings made of metal fixed together. The working parts of the tool cannot be adjusted because they are tightly connected. This factor affects the width of potato rows, which is adjusted to the dimensions of the hiller. In the factory version, the tool has a grip width of 250-300 mm.
It is not difficult to make such a model with your own hands from all kinds of materials. You will need a sheet of two-millimeter metal, from which working halves in the form of wings are cut. They are bent until the desired radius is obtained, processed with a grinder, and welded at the points of fixation. The drawings show a simplified diagram of the manufacture of a homemade lister hiller.
After bringing the edges of the metal parts of the tool to a perfectly even state using a grinder, you can consider it ready for use.
Lister hiller drawing
Disk model
To manufacture this design, you will need the same tools and material as in the previous version. The elements are fixed to radius union, the points of contact are processed by welding and polished using a grinder. Before you start making a disk hiller for a walk-behind tractor, you need to carefully study the drawings. Making the model in question with your own hands is a little more difficult than its listed counterpart, but it is quite accessible with some skills.
For getting quality instrument you should choose the right type and size of the disk. IN steel parts the bases necessarily bend the lower edges. Making a hiller for a walk-behind tractor disk type, take into account the symmetry of the disk arrangement. Otherwise, the cultivator will tilt, which will significantly complicate the work. To assemble the structure in question with your own hands, you will need plowshares. Elements from non-working or old devices are suitable. The parts must be installed at an angle, taking into account the pitch at the lower points, the length of which can be determined by the dimensions of the wheel track.
Parts are mounted using bolting or welding. The disks are connected using adapters. A T-shaped leash, racks, and turnbuckles are installed, which make it possible to stabilize the rotary axis of the working elements. They are attached to the walk-behind tractor using a beam method.
A homemade disk hiller can be made in two variations. The first is aimed at creating a design with a fixed grip width, while the second option uses a model with an adjustable width. To facilitate the operation of the tool, it is advisable to install plain bearings that provide control and direction of the axes. Experts do not recommend mounting an analogue in the form of bushings.
The model in question is attached to the walk-behind tractor using a clutch bracket. The hiller's reins are bolted to it, inside which a stopper is inserted, and the part is tightly pulled to the surface. Below are drawings for making a disk structure that will help you make the tool yourself.
Disc hiller diagram
Advantages and features of different types of hillers
Depending on the model, hillers can be divided into the following categories:
- Lister model, the peculiarity of which is ease of manufacture, the presence of thin racks that prevent the walk-behind tractor from overloading when buried in dense layers of soil.
- Disk option. The advantage of such a tool is the effective combination of the design with the main unit. Reducing the speed of the cultivator increases its power, which improves the quality of cultivation. Besides, similar designs easy to use and versatile in use.
- Samples with a grip of variable width are used in double-row processing, with tool adjustment for a specific row spacing. Despite their popularity, such models are quite energy-intensive, since the sliding blades push part of the soil to the side and then fall back, which puts a large load on the person operating the walk-behind tractor.
- Propeller-type hillers are used to equip units with a pair of frontal gears. This allows you to not only loosen the soil at higher speeds, but also throw it into the furrows from the row spacing.
Hiller with variable width consumes a large number of fuel
Devices for hilling up a walk-behind tractor from improvised means
It is worth noting that a homemade hiller can be made without spending money on purchasing metal. This will allow you to minimize its cost and show additional imagination and creativity. As source material available to use any suitable size metal product. For example, an unnecessary lid from an old saucepan.
The main thing when using this approach is not to forget about the drawings and the required disk diameter. It must be at least 400 mm. This is due to the subtleties of soil cultivation, taking into account the root part of the potato, planting depth and ground clearance. As a rule, the maximum planting depth is about 60-80 mm, the length of the roots is up to 200 mm. The cover is sharpened on all sides, slightly modified by bending and installed on the cultivator.
Drawing and dimensions homemade disks for the hiller
Nuances
When choosing the type of hiller, especially when making it at home, you should take into account certain nuances:
- Attachments with a variable grip width are usually used with equipment weighing at least 30 kg and a power of 4 horsepower or more.
- When choosing a material for a device, preference should be given to alloy steel with required thickness leaf.
- For efficient work It is better to use streamlined hillers, since they turn out the soil less, which reduces the degree of its drying.
- If the wheels slip during the hilling process, they should be paired together.
As you can see, it is quite possible to make a lister hiller and a more complex disk-type model with your own hands. After carrying out simple manipulations, in a few hours we get a removable attachment that is suitable for most domestic walk-behind tractors, will greatly facilitate the work associated with growing potatoes and will not require a significant investment.
Many owners are thinking about the question of how to make hillers for a walk-behind tractor with their own hands, what kind general principles device operation. With the help of a walk-behind tractor, you can cultivate the area for potatoes much more efficiently and carry out hilling faster.
A walk-behind tractor is an indispensable thing when cultivating crops on personal plot. The use of this tool will allow you to process potatoes better than when working manually.
Types of hillers for walk-behind tractors
This tool is one of the most important for carrying out planting work on both small and large areas. The use of this tool will allow you to process potatoes better than when working manually.
Models of hillers come in a variety of varieties, the most commonly used are the following:
- lister;
- disk;
- propeller type;
- with variable working width.
This tool allows you to make furrows and then fill them with planting material. In this case, the potatoes will be planted in neat rows, which will significantly simplify further care behind him. Overall, even if the tool is used infrequently, the resulting savings will be significant. own strength and time.
Characteristics of individual types of hillers
Lister hillers are considered the simplest variety. They are two metal sheets connected to each other in the shape of wings. The lister hiller will have a strictly defined working width, since both wing elements are fixed, their width cannot be changed depending on the size of the row spacing. When working with a lister hiller, row spacing must be adjusted to the width of the hiller. This can be very inconvenient, since the width of the rows can reach 60 cm, and the grip of a factory-made lister hiller does not exceed 30 cm.
A characteristic feature of hillers of this type is the presence of racks that do not allow the walk-behind tractor to be overloaded while digging into the soil.
For work, it is preferable to use streamlined hillers, since they turn the soil out to a lesser extent, preventing it from drying out excessively.
Disc hillers are more efficient in operation. By reducing the operating speed of the cultivator, the power of the hiller increases, which leads to an increase in service life. Hillers of this type are much more convenient to use than list ones: a motor cultivator with such a hiller will move forward on its own, and you need to put in less effort to work with it.
The third advantage is versatility. You can use a disk tool both before planting potatoes and during the period when aboveground part will become quite high.
When choosing, you should give preference to tools made of steel, with large thickness sheet and with bearings instead of sliding bushings.
Tools with variable grip widths are more convenient to use than sheet tools. They are equipped with a mechanism that allows you to adjust the working width by changing the position of the wings. Therefore, the walk-behind tractor in this case can work with row spacing of any width.
Most often, a tool with a variable grip width is used to work with powerful mechanisms, the weight of which reaches 30 kilograms or more, and the engine power is 4 hp.
Propeller hillers are used on walk-behind tractors with two forward gears. The tool works as follows: when the propeller devices start working, the soil begins to be crushed and the weeds are dug up. Then the beds are hilled using soil.
If the power in second gear exceeds 180 rpm, the tool can be used to not only hill up, but also transfer loose soil from the rows to the beds.
Methods for making a hiller
Making a hiller for a motor cultivator is not such a difficult task, especially for a person who has his own plot.
Skills acquired during construction and repair work on the site, it’s quite enough to make this tool yourself, without going to a specialized store.
The lister type hilling tool is quite simple design, so it doesn’t seem particularly difficult to do it yourself.
From metal sheet 0.2 cm thick halves are cut out - “wings”, which need to be bent so that a radius is obtained. Then carry out welding in several approaches.
The seam is treated with a grinder and cleaned. If necessary, selectively weld and clean again. The layer should eventually become perfectly even.
Stages of manufacturing a disk hiller
Before making a simple disk hiller, you need to select all the necessary materials and tools:
- steel sheet 0.2 cm thick;
- welding machine;
- Bulgarian.
As in the previous case, the parts are connected until the radii are combined and welded together. Then the seams are welded, the seam is processed and cleaned until the surface is completely level.
Before making a hiller, the craftsman should carefully study the drawings, which indicate the dimensions of each element of the part. For quality work you need to select the type of disk. In steel blades for discs, the lower edges are bent, which must be bent. During manufacturing, it is important to take into account that the disks must be positioned symmetrically, otherwise the walk-behind tractor will periodically “move” to the side, which will greatly complicate the hilling process.
When assembling the disc hiller, you will need ploughshares. They can be taken from old structures. These parts are always mounted at an angle. A step is maintained between the lowest points. Its length can be determined by the wheel track width.
The parts are connected using bolts, although in some cases it is more convenient to use welding. Using an adapter, the disks are connected to each other. In addition to the main elements, you need to install a T-shaped leash, racks and turnbuckles. The latter are necessary in order to adjust the rotary axis of the disks. Lanyards are mounted to the walk-behind tractor using a beam.
Disc hiller can be made in two different technologies. The first involves creating a fixed working width, the second - adjustable. In the case of a clearly established working width, to adjust the distance between the working disks, you will have to change the location of the racks.
To facilitate further operation of the tool, you need to install sliding bearings - mechanism units designed to support and guide the axes. This measure will increase the efficiency and durability of the walk-behind tractor. Installation of sliding bushings is not recommended.
To connect the hiller to the mechanism itself, a clutch bracket is used. The wire of the hiller is connected to it using bolts. In inner space a stopper is installed on the pipe, then the part is pressed tightly to the surface.
The bracket will change position using bolts. The walk-behind tractor wiring is located along the axis of the mechanism.
After securing all elements, the assembly of the disk hiller is considered complete. The walk-behind tractor with the new hiller is ready for the first start and further work.
Hiller made from scrap materials
Buying a sheet of steel requires spending money, while a hiller is made with your own hands most often out of a desire to save on the purchase of parts for a walk-behind tractor. Instead of a template, you can even use unnecessary materials, which are literally at hand. For example, old pot lids.
However, they must be selected very carefully, in accordance with such parameters as the required disk diameter. To make a simple disk hiller with your own hands, a lid with a diameter of 40 cm is suitable, but it is better to take a larger one, 50-60 cm in size.
These figures were obtained taking into account such parameters as the length of the potato root system, planting depth plus ground clearance. The planting depth is usually no more than 8 cm, the length of the root system is up to 20 cm.
The selected cover is sharpened on all sides. Then it is bent a little with a hammer and attached to the walk-behind tractor.
As you can see, at home it is quite possible to make both a simple lister and a more complex disk hiller. Such a simple operation will allow you to make a spare part for any domestic walk-behind tractor (MTZ, Neva, Salyut, etc.), saving cash, while speeding up the process and increasing the efficiency of hilling.
Hiller - a device for cultivating soil. It is used in household and on an industrial scale. For personal use, you can make disk hillers with your own hands.
Disc hiller: what is it?
The design of the equipment is simple. It looks like a metal frame to which wheels are attached and rims are suspended. Let's try to make a disk hiller with our own hands. We will also draw up design drawings ourselves. To assemble the equipment you will need the following:
- turnbuckles (screw) - help adjust the angle of rotation of the disks;
- T-shaped leash;
- discs of a certain diameter;
- stands (2 pcs.).
Adjustable stands change the distance between the edges of the discs. The minimum width is 35 cm, the maximum is 70 cm.
The disks must have the same rotation angles. This can be done using lanyards. The tilt of the discs is not adjustable. This indicator does not change after the structure is assembled.
If the equipment will be used for a walk-behind tractor, it is necessary to provide for the diameter of the equipment wheels. It should be 70 cm, width - 10-15 cm. Thus, the wheels will not be able to damage the row spacing and planted crops.
The inventory can also be used manually. The main design elements are similar to those described above. In this case, the holder for the hiller is metal pipe diameter 2-5 cm. This parameter directly depends on the size future design. All elements of equipment are welded to it.
We make our own inventory
To build a disk hiller with your own hands, you will not need virtually any financial investment. It can be made from available materials.
Surely every person has old pots in their pantry that they don’t use. We will need covers from them. They should have a diameter of 40-60 cm. They must be sharpened along the edges, for example, using a lathe.
Then the covers need to be bent so that there is a convex plane on one side and a concave plane on the other. This is necessary so that when you make a disk hiller with your own hands, it will lift the soil and cover the bushes. In addition to pots, you can also use old discs from a seeder.
In addition, you will need:
- T-shaped leash;
- turnbuckles (2 pcs.);
- stands (2 pcs.).
All structural elements are fastened together with bolts. To increase strength, they can be welded to each other. The discs are connected by adjustable conductors. They are installed symmetrically on both sides. The distance between them should correspond to the row spacing.
The resulting structure is attached to the walk-behind tractor bracket using a leash, bolts and washers. It is necessary to check the quality of the connections so that after you make the disk hillers with your own hands, they do not become deformed during the work.
Operating principle of the equipment
The described equipment is intended for hilling potatoes and other vegetable crops. And despite the fact that it can be purchased in specialized stores, it is more economical to make disk hillers with your own hands. It is attached to the walk-behind tractor using bolts, washers and a stopper. When the walk-behind tractor operates, the disks begin to rotate. At this time, they capture part of the soil and create a roller. The rotation of the discs allows you to crush the soil and loosen it.
Anyone can make a manual disk hiller with their own hands. It helps to quickly and efficiently cultivate the soil before sowing and after harvesting. It is also used to treat row spacing and hill up potatoes. As we have already said, this device is installed on a cultivator or walk-behind tractor.
Disc hiller parameters
This equipment has found wide application in Agriculture. With its help, the ridges are smooth and high. Accordingly, the time spent processing row spacing is reduced, and working with the device is quite simple.
There are certain parameters that manufactured disc hillers must meet. You also need to do them yourself, remembering the following:
- about the thickness of the disks;
- their diameter;
- material for manufacturing;
- mechanism for regulating the operation of equipment.
Based on the drawing proposed in the article, you can make the inventory yourself and save a lot of money.
Technical characteristics of equipment
Advantages of this equipment:
- ease of use - the device is mounted on a walk-behind tractor or a metal handbrake;
- strength - the structure is securely fastened with bolts and washers;
- durability - equipment service life is more than 10 years (with proper care);
- versatility - the equipment can be used for hilling any vegetable crops.
You can’t do without such a device in the garden. It can be purchased at finished form or do it yourself. Hillers, which are sold in specialized stores, are endowed with excellent technical characteristics. They have one drawback - high price. Homemade products can be built from scrap materials. This will save you a lot of money.
Agricultural work associated with hilling some crops (such as potatoes, corn) is considered the most difficult. Of course, hilling can be done manually. However, everyone who tried to hill potatoes with a hoe or manual hiller, remembers his not the most pleasant feelings. Therefore, today small-scale mechanization tools such as hillers for walk-behind tractors are widely used.
Types of hillers for walk-behind tractors
There are several types of hillers:
- with a certain, fixed working width;
- with variable working width;
- active propeller type;
- disk.
Okuchniki with constant working width They make furrows of a constant width of 20–30 cm. The fact that the width of the furrows cannot be adjusted is not always convenient. It is more convenient to use such hillers with motor cultivators with a capacity of less than 3.5 liters. With. and weighing no more than 30 kg. Also, such tools have thin stands and are not suitable for hard soil. In addition, they are inconvenient to use in wet soil.
Hillers with variable working width allow you to adjust the width of the furrow. They are suitable for walk-behind tractors not less than 30 kg weight and power above 4 horsepower. Such devices are among the most common, despite the fact that after the passage of such a hiller, part of the earth is poured back into the furrow (which means their energy intensity is quite large).
It is worth considering separately the so-called Dutch hillers(having variable working width). They do not have this disadvantage. Their wings are adjustable both horizontally and vertically. They are connected to walk-behind tractors weighing more than 30 kg and with a power of at least 4 liters. With.
Active hillers are very easy to use propeller type. They have a different operating principle (propellers crush the soil, comb out weeds and hill up plants loose soil), and they can only be used with walk-behind tractors and cultivators with two forward gears.
Disc hillers are much more common; they are no less convenient and comfortable to use. What are these units?
Disc hiller design
Externally, a disk hiller looks like a frame on two wheels with two disks suspended from it. These devices can perform multiple tasks: soil cultivation before sowing crops and after harvesting, inter-row cultivation, hilling. You can install such a hiller on a walk-behind tractor or cultivator.
IN compound disk hiller includes:
- T-shaped leash;
- two screw lanyards (they regulate the angle of rotation of the disks around the vertical axis);
- two racks;
- two disks.
Thanks to the adjustable racks, you can change distance between the edges of the discs. This allows you to set the width between the rows as needed (from 35 to 70 cm).
It is also necessary to set the disks to equal rotation angles (this is done by adjusting the lanyards). Without this, the hiller will pull to the side. The inclination of the disks to the vertical is not adjustable and is almost always constant.
Operating principle of the disc hiller
The hiller is attached to the walk-behind tractor on the hitch bracket without a beam. This is done using a stopper, two bolts and flat washers. It is more convenient to work with a hiller for a walk-behind tractor in first low gear. This will increase thrust by reducing forward speed.
The operating principle of a disc hiller is simple: the discs grab the soil as they move and create a roller during hilling, adding soil to the plants. The rotation of the discs allows you to further crush the soil and loosen it.
The disc hiller has certain advantages compared to its other brothers: it makes the combs smoother and higher, it is easier and more pleasant to work with, and it consumes much less energy. It is easier for the operator to work with such a device.
Of course, not everything is so wonderful. You always have to pay for comfort. And the prices for disk hillers are another confirmation of this. The pleasure of using a convenient and easy-to-use disc hiller is worth about three to four times more than other types. Price The same for this tool depends on some parameters. Among them:
- diameter and thickness of discs;
- material of manufacture: plain steel or alloy;
- the use of either sliding bushings or rolling bearings in the design;
- adjustment mechanism.
When purchasing a disc hiller for a walk-behind tractor, all these factors should be taken into account. By choosing a device that is reasonable in price and quality, you can enjoy the comfort of working with it.
Considering that this technique is not cheap, a reasonable question arises: is it possible to make a disk hiller for a walk-behind tractor yourself?
How to make a disc hiller yourself
In order to build this tool, you will need two covers from old unnecessary pots. Their optimal diameter- within 50−60 cm.
Lids are needed sharpen along the entire circumference. It will be work surface. Next, use a hammer to bend the lids: there should be a convexity on one side and a concavity on the other. This is necessary so that the disc lifts the soil and covers the bushes nearby. You can also use discs from an old seeder. In addition to these, you will need two screw lanyards, two stands and a T-shaped leash.
The elements of the device are connected to each other by bolts or welded. The disks connect themselves adjustable adapters.
Lanyards will allow you to adjust disk rotation angles vertically. The discs must be installed so that they are symmetrical and the distance between their edges coincides with the row spacing.
The assembled structure is secured through a leash to the walk-behind tractor bracket with bolts, flat washers and a stopper.
Thus, if you have certain skills and the required elements among unnecessary old things, it is quite possible to assemble a disk hiller yourself, and save money quite a decent amount.
In any case, whether you buy a disk hiller for a walk-behind tractor or make it yourself, this wonderful tool can significantly ease the hard work on your garden plot and increase the yield of your crops.
A distinctive feature of the Neva walk-behind tractor is its compatibility with almost any type of attachment.
Hillers are designed to form furrows under further landing agricultural crops. They are also sometimes used to loosen the soil and roll grass from the rows to the roots of crops.
The official website of the manufacturer of the Red October plant offers 4 models. Let's figure out what the differences are between each model.
They are all similar in their purpose and end result. But they differ in manufacturers, designs, sizes and functional purposes.
Double-row hillers allow you to simultaneously process two rows of crops. It is a bracket post that is connected to the hitch. And two racks with hillers that are bolted to it. You can adjust the width of the hiller and adjust it to the required conditions.
There are two options available on the manufacturer's website.
Double row OND
This hiller is produced by NMZ Energia CJSC.
It is designed to work on light and prepared soils. In particular for cultivating soil in gardens, greenhouses or small vegetable gardens.
- The maximum depth for hilling is 120 mm, the minimum is 80 mm.
- The depth of penetration of the unit into the ground can be adjusted manually.
- The width of the OND wings can range from 25 to 43 cm.
The mounted double-row hiller OND has the following dimensions:
- 72 cm long,
- 54 cm high,
- 35 cm wide.
- With such dimensions, the weight of the OND is up to 9.5 kg.
The operating principle of a double-row hiller is shown in the video:
Double-row STV
It is produced by the Volga company ZAO VRMZ.
This company offers two options for manufacturing hillers for the Neva walk-behind tractor. The main difference between them is the width of the wings and the distance between the bodies. That is, everyone can choose the option that suits them best.
- The weight of models can be 10 or 13 kg.
- The width is from 86 cm to 1 m. The length of the model can be from 39 to 46 cm. And the height is from 46 to 68 cm.
- The distance between the shares is adjustable and can be from 21 to 65 cm.
- The maximum plowing depth can reach 15 cm.
As we can see, this model offers a wide range of settings. Therefore, each owner will be able to adjust the hilling devices to their needs.
If your two-row STV hiller is slipping, you can alternatively use a solution with upgraded lugs:
Single-row STV NPD
They are designed to process only one field row. It is more effective if you look at it from the point of view of ease of management. Because when working with a two-row hiller, it is necessary to monitor the work of two rows at the same time. But this is not always possible and it is possible to make the wrong movement and damage the sown crops.
Plus, the arrangement of the beds is not always level and there are uneven lines when planting. In this case, there is a high probability of crop damage. Single-row hillers for the Neva walk-behind tractor are much easier to operate than double-row hillers.
Therefore, ZAO VRMZ offers its clients wide choose single-row hillers. Various configurations and sizes. In total there are more than 15 various models and configurations.
Here are their average characteristics:
- Overall dimensions – 46 cm in length, 21 cm in width and 65 cm in height. The average weight of the structure is 5 kg.
- Hilling depth can reach 15 cm.
- And the working width of the hiller is from 21 to 36 cm.
How to use it correctly?
A special coupling is used to connect it to the walk-behind tractor.
After coupling, special bolts should be used to adjust the working depth and the width of the hiller. To do this, it is necessary to take into account the characteristics of the soil that is planned to be cultivated.
The depth of hilling is adjusted by changing the angle of inclination of the body itself.
If the need arises, the angle of inclination can be easily adjusted during agricultural work.
Here is a video showing how a single-row hiller is used:
Single row disc
This type is a structure consisting of a rack, a disk and a shaft. The drain is mounted on a special bracket using a bracket. This bracket allows you to adjust the position of the stand in any direction. The shaft is equipped with a sector, it allows you to adjust the angle of the disk. The discs are mounted on a shaft, which is driven by plain bearings.
JSC "VRMZ" offers the following characteristics:
- Weight can range from 5 to 10 kg.
- The length of the hiller ranges from 24 to 27 cm.
- The width can be adjusted from 33 to 66 cm.
- The height can be adjusted from 54 to 70 cm.
- The maximum height of the ridge can reach 20 cm.
- The tilt angle of the discs is adjustable from 27° to 35°.
CJSC VRMZ does not offer its clients to use what they have. They offer their customers a wide range of settings for the mounted hiller. So that you can adjust its work for beds of a specific size.
Setup and operation
First, it engages with the walk-behind tractor. Then the distance between the hiller bodies and their width are adjusted.
The width can be adjusted by spreading or narrowing the wings.
And the working width is controlled by loosening the bolts and rearranging the hiller body. After installation at the required distance, you should securely fasten them back.
IMPORTANT! After adjustment, the housings should be at a symmetrical distance from the axis. Otherwise, the walk-behind tractor will constantly lead in one direction and work will be impossible.
Before use, you must first couple the hiller to the walk-behind tractor.
Then adjust the angle of inclination and the distance between the discs to obtain a ridge required height. To do this, you must use special bolts according to the manufacturer's instructions.
The discs go deeper into the ground by pressing the handle of the walk-behind tractor as it moves.
If the need arises, it is possible to adjust the angle of inclination of the disks and the distance between them directly during work.
Here is a detailed video review of the disc hiller for the Neva walk-behind tractor and an example of its operation:
Homemade options
The Neva walk-behind tractor is compatible with any attachments. All that is necessary is to couple it with the equipment body.
The hiller is a relatively simple structure that many people can assemble at home.
The simplest type of hiller to assemble at home is a disk hiller. All they need is:
- T-frame,
- 2 disks
- 2 racks for them.
Any steel with a thickness of 2 mm or more is suitable for making discs. But they will need to be given a convex shape.
Holes are made on the frame that will be necessary to change the distance between the disk racks. They are attached to the frame with special bolts.
Here detailed video instructions, which will help you figure out how to make a hiller for the Neva walk-behind tractor with your own hands: