How to make a potato harvester for power tiller with his own hands

Making a homemade potato harvester for your power tiller with your own hands

For people who live in rural areas, harvesting potatoes in the fall remains a labor-intensive activity. Of course, today, few people do this kind of work by hand, using a shovel. Many people buy a variety of mechanical devices for this purpose, and some, so-called “hobbyists”, with their own hands make various devices to relieve themselves and their loved ones from hard work. The potato digger, which functions with the help of a power tiller of any modification, whether it is the beloved model “Neva”, or the device from another manufacturer, is in particular demand among rural toilers. Here the main thing is to have a clear idea of what is a homemade digger for potatoes, and be able to create drawings according to the necessary calculations.

Design features and types

It is worth recalling at once that this mechanical device, as seen in the photo, to perform the work, is hooked to the tiller. Such a digger, made by hand, as shown in the video, is able to work the land not only near the house, but also in the field.

The main purpose of the potato digger is to separate potato tubers from the soil and put them on the ground. Such a machine is easy to operate and has an uncomplicated design. Therefore, to design it with your own hands is usually not particularly difficult. The most important thing is that this attachment mechanism is suitable for any model of power tiller, whether it is the well-known “Neva” or other modification.

Many readers will say that you can buy such a potato harvester at the point of sale of agricultural machinery and equipment, and why make it your own hands. This statement is correct, but not quite. Any experienced gardener will say. the digger, designed in the home workshop will be more practical, because it will be designed under the already known characteristics of the soil, and will be made under the strength of a particular person. Another thing to add here is the price. The device, executed by your own hands, will cost much cheaper than buying it in the store.

Before you start the creative constructive work on the creation of a potato digger, remember, it is adapted to work on soils with medium and low density criterion. To make units adapted to work on heavy soils, you need to have a deep knowledge of physics and mechanics.

Digger for potatoes, adapted to the tiller, as shown in the photo, there are these kinds:

A screen or vibrating mechanism. it mainly consists of a ploughshare and a vibrating screen. The principle of operation of this type of potato harvester, which functions with the help of a power tiller, is simple. The soil is undermined together with the potatoes by the share. Then the immovable transporter grid leaves the tubers on its surface, while the soil is shaken off like a sieve. Such a model is effective in operation, but rather difficult to make.

Transporter unit for digging potatoes. it can work freely, for example, on the basis of such motor-block, as “Neva”. By design, the transporter digger consists of a ploughshare and moving transporter, which has a special hitching device to hold the tubers on the platform and clear the ground. The conveyor design for digging potatoes has more practicality than the vibrating type of potato digger. But it is not practical to use this type of device on soils with a light degree of density.

Arrow type. by the device is the simplest mechanism, which can easily be adapted to any model of mini tractor, such as “Neva”. It does not contain any movable parts. As shown in the video, the soil with the tubers is cut with a knife. Then the cut falls on the surface of the special bars, where the soil is poured back, and the fruits in pure form are laid on top of the soil. This digger is effective on the soil with a low degree of density, where it is not practical to apply other varieties of devices.

Before you begin to design such a device, first of all, you need to determine exactly the density of the soil, on which it will be used. It is worth remembering that where a conveyor design with a lancet type can ideally be used, it will be difficult to work.

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Blueprints of homemade and factory potato harvesters

For a small farm, to conveniently harvest the potatoes, you need to make a small-sized device. It should be handy in operation and easy to hitch up to a single axle tractor.

Potato puller construction: 1. welded frame, 2. blade, 3. transporter, 4. pulley, 5. connecting rod, 6. pulley of bevel gear. 7. belt, 8. rack, 9. adapter, 10. support wheel, 11. spring tensioner.

In order to make the device under consideration, it is necessary to have:

Coulter made of high quality metal alloy, at least 5 mm thick. To make it, you can use a saw from a circulating machine.

Metal angles, size 40 and 63mm.

Steel bars. It takes at least 8 of them to make the attachment as shown in the photo.

To make a device for digging potatoes of the vibrating type requires, first of all, to make a frame. It should be easy to join, for example, with the mini tractor “Neva” or with other modifications.

Potato digger and loder(2)

In general, as shown in the video, such a device consists of the following nodes:

Adjusting rods of vertical design.

To design such a unit, it is required to make accurate calculations and according to them create drawings. Without following this rule, the process of making your own hands will be difficult.

The stages of making a potato harvester of the screen type

As can be seen from the video before starting work requires the following tools to be prepared:

Also, to make a device, you need to prepare bolts and nuts.

Potato digger with minitractor.

stage. making the frame. To do this, as shown in the photo, a square-shaped tube is sawn into four pieces. Two pieces should be. 1200 mm, and two. 800 mm. The size of the pipe. 4040 mm. Prepared parts are connected by welding into a rectangle.

Stage. Fixing the crosspieces. From the video you can see that they are needed to install vertical control rods. Fix this element approximately a quarter of the base length of the frame. At the other end two wheel mounting brackets are mounted. Such element should be made of two tubes with a diameter of 30 mm and a length of 150 mm.

Stage. installing the uprights of vertical type. On the side where the lintels are mounted, at a distance of 5 mm from the edge of the frame, two squares of size 3030 mm and a length of 500 mm are mounted vertically. Then, at a distance of 200 mm, props with a length of 40 mm are mounted. Then you need to step back another 400 mm and fix the uprights of 300 mm. Join the uprights together with a 0.4 mm strip.

Step. Making the frame. First, on a metal sheet 400400mm thick, 0.3mm thick, and at the bottom of the uprights, two holes are prepared for fastening. The workpiece is rigidly attached to the uprights. The same piece is attached to the other side. Another square of sheet metal 700700 mm and 0.4 mm thick is welded butt-welded to the first element, and then bent into the desired cone configuration using a sledgehammer.

Stage. the design of the grid. For this purpose, a rod with a diameter of 10 mm is attached from below to the finished frame, and the other end goes beyond the perimeter of the frame towards the traction mechanism, which can be the model “Neva”.

Then with your own hands you can install the regulating rods and wheels. They are fastened through the specially prepared fasteners

How to make a potato digger and potato planter for a mini-tractor yourself

Many farmers are interested in how to make a potato digger for a mini-tractor with their own hands. The potato digger is an attachment for a mini tractor or single axle tractor. It is designed for digging the ripened potato tubers to the surface of the ground. Regardless of the model and brand of the device, the principle of operation is the same for all.

Drawings and dimensions of a fan potato harvester for a power tiller

Fan potato digger design is a plow with tips made of metal rods. This kind of device is designed not only to dig out and sift tubers, but also to loosen the soil.

Homemade potato digger for the fan type power tiller is made according to the drawing, on which the proportions of the device are indicated. Its size varies depending on the desired area of the plot cultivated in one approach.

Another important parameter when making a potato digger is the depth of tillage

In order to make your own potato digger, you will need an angle grinder, a welding machine and a drill. Also in advance it is necessary to stock up on the following materials:

There are no turning and rotating mechanisms in the design of the potato puller, the device can serve for many years

Among the disadvantages of potato diggers for power tillers is a fairly high loss of root crops. Due to the sharp tines of the device, the crop can be damaged. It is generally estimated that about 20% of all harvested fruit can be ruined by the machine.

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Attaching the potato harvester to the machine

Method of attachment to the power tiller:

make, potato, harvester, power, tiller
  • Begin by preparing the power tiller. Remove PTO shaft guard. Take out the securing pin from the trailed unit.
  • Put a semi-cardan on the input shaft of the potato harvester‘s gearbox.
  • Attach the machine to the trailed part of the trailed implement. Fixing with a finger.
  • At this stage, check the functionality of the slave and drive shafts. Adjustment of alignment is achieved by means of the adjusting bolts on the trailed unit.
  • Secure all threaded joints with locknuts.

One of the most important steps is to adjust the length of the half-gear. Set it so that the clearance to the gearbox is 5-10 mm.

For hitching to a mini-tractor, you need to buy a special mechanism designed to connect the potato harvester as an attachment.

Construction specifics

Before starting to build a digger for a power tiller, it is necessary to study its structure, understand the principle of operation, prepare materials and tools. All devices for digging potatoes function on the same principle: tines break into the soil, pick it up together with potatoes and lift. The soil crumbles and the potatoes roll into the hopper or fall onto the plowed land.

optimum metal thickness

Blades and other metal parts are made of 8 mm thick steel plate. other dimensions are possible, depending on the anticipated workload.

Wheels for the digger

The wheels of the potato digger are made movable. The ones left over from old products, such as a garden wheelbarrow, are suitable. It’s good if they have wide tires: that way it will be easier for the mechanism to drive between the rows. Wheels can be rubber, including tread, or metal. The first option will make it difficult to move on wet ground, the second makes it easier to move on hard ground. Treaded tires are universal. suitable for all soil types.

Knives and other metal parts of the digger are made of steel sheets

Ways of connecting

Parts are connected by fasteners, electric or gas welding. Bolt connections are preferable, because they allow you to disassemble and reassemble the unit.

Potato digger for power tiller, types of designs, drawings for making their own hands

The main part of the garden acreage of the Russians is traditionally given to potatoes, because it is called by the people the second loaf. Many have shifted some of the work of growing potatoes on their shoulders, or rather on the trailed equipment of small mechanization: power tillers and minitractors.

And if planting potatoes is not a big job, then it is not an easy task to dip them, and the main thing is to dig them out. For ditching and weeding, most often use the included power tiller, but it is not quite suitable for digging in its pure form. Let’s find out what to dig and how to make a potato digger for a power tiller with our own hands.

There are several designs of potato harvesters for power tillers and mini-tractors. Consider them: from the simplest to the high-tech.

Homemade potato harvester for power tiller with his hands

For country dwellers and dacha owners the problem of harvesting, especially potatoes, is very close because of its labor intensity. A small area can, of course, be dug with a shovel, as is most often done. However, it is much easier and faster to harvest potatoes even from two or three acres, using a potato digger for power tiller.

There is a rich choice of models of industrial potato harvesters, which can be purchased in specialized stores. However, using your technical skills and our recommendations, you can make your own potato digger for a motoblock with your own hands.

Types of diggers


Manufactured potato diggers for mini-tractor differ in design from homemade devices. The most common types of purchased devices:

  • Rumble (vibrating). After gripping the potatoes, they fall on the table, which lends itself to vibration, shaking off the soil particles.
  • Transporter. The design of the device is the same as that of the screen digger, but on such an apparatus a grid is installed instead of a table.
  • Fan. According to the principle of work they have similar features to the vibrating counterpart. Used more often not on mini-tractors, but on tillers. There are no moving parts in its design.


Although the self-made shovel is inferior in functionality to the original products of tractor factories, it will be enough for private property. The main thing is to make drawings and pick up the necessary materials. The process of assembling the machine itself does not take much time. The easiest way is to make a lancet digger. By design, it is a concave shovel with long rods.

The disadvantage of harvesting potatoes with such a device is the inconvenience. A man has to make fewer movements than when working with a usual shovel. For a mini-tractor, such a device is not suitable. This is a common remodel of the tool, which is suitable for work on small vegetable gardens. It is difficult to dig over 1-2 km of planted beds.

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One-row hinged potato digger for mini-tractor, which you can make your own hands, should be as strong and reliable as possible. The easiest way to assemble the vibrating unit, the frame of which is made of metal angles 60 x 40 or 50 x 50. A grid can be used as a potato table.

Selection parameters

Potato diggers differ in these parameters:

  • Dimensions. the greater the length and width of the working mechanism, the more productive the potato harvester is. Narrow implements are better suited to single beds in a household, while their wider counterparts with a grapple are used to harvest potatoes from more than a hectare of land.
  • the way potatoes are cleaned from the ground. this factor is taken into account, depending on the soil conditions of the region where the potato digger is to be used. While loose chernozem is easy to fluff, loamy and sandy soils need extra cleaning.
  • How it works. this determines how well the attachment works.
  • The presence/absence of additional wheels. large units must have an extra point of support, otherwise it will be difficult for the power tiller to do its basic work.
  • How it is attached. the screw attachment method is considered the best way to attach the potato harvester to the tiller. This allows you to detach the attachment at any time. Some models are attached exclusively by welding.

Many farmers also pay attention to the brand name and price. These two factors are not the key, but they largely determine the productivity of the machine.

Depending on the technological features, there are several types of potato diggers: fan, screen, drum, conveyor, conveyor, vibrating. Each is designed for specific soil types and worked area volumes.


Gets its name from the fan-shaped arrangement of the wires. The working mechanism is in the form of a plough, with equally spaced bars radiating out from the plough.

The working principle is simple: the plough plunges into the ground, the traction of the power tiller lifts the potatoes from the depth and falls onto the bars, where they are shaken off the excess soil and laid as a carpet on the bed.

The advantages are simplicity in manufacturing and low cost. Disadvantages include the rapid wear and tear of the bars and their breakage when used on hard soils.


Has a more complex design, with extra wheels and points of support. Contains a grid, which is inclined relative to the soil at an angle.

Potato digger is sunk below the location of the potatoes, after which the potatoes are lifted to the surface, remove excess soil on the grid, and the root crop is placed on the ground surface.

One of the advantages is that the potatoes are free of soil as much as possible. The disadvantage is the low productivity.

US Small Farm one row potato digger with Collection Wagon


It is a complex mechanism that simplifies the landowner’s work as much as possible. A plough, which penetrates into the soil layer, lifts the potatoes and falls onto a grid, after which it is transported into a rotating drum. Then the potatoes are further cleaned from the soil and fall into a crate.

There is another principle of operation of the drum potato digger: a knife cuts the soil layer together with the potatoes and takes them into the drum, where under the influence of the constant movement the excess soil is sieved, and the potatoes are poured on the ground.

The advantage is the ability to cultivate large areas as well as transport the potatoes directly into the container. No need to dig the potatoes up from the ground. Disadvantages include the inability to use on hard terrain.


Consists of two main parts: the conveyor belt, which carries the potatoes, and the blade, which lifts the potatoes layer. Not suitable for wet and sticky soils.

The disadvantage is that it cannot be used in fields where there are weeds. The potato stalks get caught in the conveyor belt, wrap themselves up and slow down the potato harvester.


The potato digger is a bucket with a buried bucket, in the center of which a conveyor belt is installed.

Root crops are lifted together with the soil, moved to the belt, where the removal of residual soil takes place. The potatoes are then laid flat on the ground.

The advantage is that it is possible to process several beds at the same time. The potatoes are clean and minimally damaged.

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