Garden chopper for grass and branches: design of a homemade crusher, materials and assembly process. How to make a universal branch chopper with your own hands Do-it-yourself tops chopper

To make a branch chopper with your own hands, you need to study all their varieties. Depending on the volume of processed material, you should select a design required power. Do right choice in knife design.

During assembly, some components are made by hand. Standardized parts are purchased or used from used units. A good option is the use of devices that have expired. These include washing machine, grinder or walk-behind tractor.

Operating principle of the unit

The schematic diagram of any branch chopper consists of the following components:

engine;
1 or 2 working shafts;
knives;
receiving hopper;
frames;
protective casing.

The garden crusher is mounted on wheels. This creates ease of movement within the dacha.

During engine operation, torque, through a chain or belt, is transmitted to the shaft. The knives located on them grind the branches, which are fed through the receiving box. Shredded wood is formed, which is placed in compost pit. The principle of operation resembles the operation of a meat grinder.

Industrial units for knife chopping of thick branches are produced high power. This is not required in the conditions of a summer cottage. Therefore, for home needs, smaller size branches are made by hand.

Types of shredders

The basic design of all types of branch choppers is the same. They differ only in engine power and types of knives.

In some designs it is installed Gas engine, in others - electric. The first one is more powerful and is engaged in chopping large branches. Independent of power supply. Has greater mobility. Electric is weaker in power and the operating distance depends on the length of the cable. But it is mobile due to its lightness.

The engines differ in power:

1. Electric motor up to 1.5 kW. Capable of chopping branches up to 2 cm in diameter. Most processing is carried out in small areas.
2. 3 – 4 kW. They cope with wood up to 4 cm. They are used in a small garden or cottage.
3. 6 kW or more. The work is carried out on large farms. Trunks 10-15 cm in diameter are processed.

As a rule, a 4 kW engine is installed on a homemade unit. There is no point in installing more, since there will be a large consumption of electricity. To carry out work on chopping branches on summer cottage no such costs are required.

Engine speed doesn't really matter. The final rotation speed of the knife shaft is 1500 rpm. It is adjusted by the diameters of the pulleys.

Torque is transmitted using a chain, belt, or directly by installing a cutting tool on the motor shaft.

Depending on the cutting tool, branch choppers are divided:

1. Twin-shaft type. This powerful unit, which is capable of chopping large branches. Several knives are installed on the shafts. The degree of wood chopping depends on their quantity.
2. Installation with cutting disc. If the engine power is from 3 kW, then the knife is attached directly to its shaft. For weaker units, a transmission link is used.
3. With circular saws from a circular saw. Refers to the simplest designs.

Frame making

Whatever the type of device, the frame has approximately the same design. It is welded from pipes and angles in accordance with the recommendations:

1. The height size is selected based on human height. To make it convenient to place the branches in the bunker.
2. For the stability of the structure, its width is set at 500 mm. The size of the length does not matter, it is a free value.
3. For rigidity, cross members are welded between the posts.
4. For ease of movement, wheels are installed below.

The frame size is coordinated with the engine parameters. It is impossible for him to speak out for her dimensions.

Step-by-step assembly of twin-shaft type

To make such a unit, a drawing is created. He assists in the manufacture of the structure.

Are being selected necessary materials and tools:

engine;
metal plates 10 mm thick – 2 pcs.;
gears – 2 pcs;
pulley – 2 pcs;
shaft – 2 pcs;
bearings – 5 pcs;
knives;
metal for the body;
metal pipe;
spanners,
perforator;
welding machine.

The frame is made in the usual manner. If you plan to install 4 knives, then take a square blank and grind shafts on both sides to fit into the bearing. For 3 knives you need a round block in which the cuts are made for them. Holes are drilled in the blanks.

Knives are attached to them. The attachment points are marked. Holes are drilled and threads are cut into them.

A drum is formed, which consists of 2 walls, 4 pins and a protective casing. To create the walls, metal 10 mm thick is used. They have 2 holes for bearings.

Bearings are installed on the shafts and knives are attached. Using a keyed connection, the pulley is secured to the shaft. The keyway is formed using a torch. The entire mechanism is installed on the frame: a motor with a pulley and a drum. The pulleys are connected to each other by a belt drive.

The receiver is being manufactured. To do this, 4 sheets of metal are cut out in the shape of a trapezoid. They are welded in the form of a box. It is installed on bolts in front of the drum hole.

Disc chopper

A drawing is being prepared to create a disk chopper.

This design of the device is simpler.

Materials and tools used for its manufacture:

engine;
pipes;
sheet metal 5 mm thick;
spanners;
hammer drill

It is better to buy knives that are factory-made, since they contain tool steel hardened to 66 Rockwell units. To make them yourself, you need a spring, from which a workpiece is cut to the required length. First, it is heated in a forge, leveled, additionally hardened and cooled. Then sharpening is carried out at an angle of 35-45 degrees. Holes are drilled into the body and the knives are ready for installation.

Alternatively, a pipe is used as a support for the unit. A cube is formed at the top, where all the parts of the mechanism are attached, and at the bottom there are wheels.

Metal is taken and a disk with a diameter of 400 mm is cut out of it. Holes are drilled in it for installing the shaft, as well as holes for attaching knives. Then the disk is installed on the shaft and the entire assembly is attached to the motor.

The formation of the receiving compartment is carried out in the same order as for a two-shaft apparatus.

From a set of circular saws

This type of design is one of the simplest. A purchase is being made circular saws with carbide tips in the amount of 20-25 pieces. This value can be increased. The knives are mounted on the shaft. Between them there are washers with a diameter of 20 mm. The length of the cutting surface is 80 mm.

Position cutting tool it is impossible to do it closely, because the thickness of the teeth is greater than the base. The washers compensate for this amount.

Before installing the knives, a thread is cut on the shaft. Then the nuts are clamped on both sides.

The frame is formed in a standard way. The bearings are placed on the shaft and fixed to the frame cross members.

The engine is installed, the chain is tensioned and the receiving hopper is installed.

Manufacturing from various devices

In order to make a wood chipper, you can use household appliances that have served their purpose. A small modification will make it possible to use them for a new purpose: to make a grain crusher or a branch chopper.

The main element in these devices is the engine. If it is in working order, then it only needs to be supplemented with some details.

From the Bulgarian

The operating procedure consists of the following steps:

1. Capacity is selected.
2. A hole is made at the bottom.
3. The axis of the grinder is passed through it.
4. A knife is installed on top.
5. The tool is securely fastened.

When rotating, the knife should not touch the walls of the container. Branches are poured inside and the grinder is turned on at minimum speed.

From a walk-behind tractor

To make a chopper from a walk-behind tractor, you will need the following materials and tools:

walk-behind tractor;
knives;
bearing;
channel;
sheet material;
electric plane;
welding machine;
hammer;
Bulgarian;
drill;
a set of keys.

The base is formed from a channel. A shaft from an electric planer, a knife and a pulley are installed on it. From the walk-behind tractor, torque is supplied through a belt drive to the pulley and shaft.

A receiving hopper is formed.

All structural elements are placed on the walk-behind tractor.

Making your own wood chipper provides significant savings. Factory models are expensive. At home, improvised means are adapted for this. Even if you have to purchase some components or have them manufactured, it will still cost much less than a purchased product.

Or a branch crusher, designed to make caring easier, save time and energy, and also solve the issue of disposing of unnecessary and dry branches after “lightening” the crowns and clearing the area. The device is in good demand on the market, so today it can be found in any garden and garden supply store. For a person with an average income, a garden shredder is a rather expensive pleasure, but with a little technical skill, the device can be constructed.

Purpose of the device in the country

A garden shredder is used for the following purposes.

Shredding branches up to 45 mm in diameter. The device crushes branches into fractions of various calibers, depending on the knife system of a particular device. Basically, from chopping branches larger than 15 mm in diameter, a fraction of large chips is obtained - about 3 cm. It is better to pass branches with a diameter less than 15 mm through a shredder.
Shredding of green vegetation using a shredder attachment. Using a shredder it is very convenient to create a substrate for. The mass turns out very juicy, of suitable density.

Of course, you can simply throw away processed plants - after chopping, the wood and green vegetation become compact and easily transportable, but you can also get a lot of benefits from these products! Shredded wood and green mass are valuable organic substrates that can always be used in any summer cottage.

How you can use processed products:

Using wood chips to prepare the substrate. Chopped wood is an important and main nutrient component, which is ideal for germinating seedlings and seedlings, and is also used as permanent soil for many, for example, or.
Using green mass for mulching. This mulch perfectly fertilizes and protects it from moisture loss and overheating in the summer, but needs periodic replacement.

Design Features

A branch chopper is quite easy to make with your own hands, and it consists of:

metal case;
working shaft with knives;
a motor that drives the mechanism;
receiving box;
protective casing.

Working shaft with knives. Knives are one of the most important components of a shredder: the type of knife determines the size and shape of the processed wood fraction.
In homemade ones, the following types of crushing elements are installed:

Double-shaft eight-knife design. Consists of two shafts fixed between two metal plates. Knives are attached to each of the shafts at an angle. Torque from the motor to the shafts is transmitted using a chain or belt that is attached to the gears. The distance between the shafts is adjustable and depends on the size and type of knives, as well as the diameter of the branches.

Important! The twin-shaft chopper is most efficient when operating at low engine speeds. In order to reduce the speed, it is enough to install a gear of a smaller diameter on the shaft, and a larger one for the drive.

Knife-disc design. Simpler to design, but less functional: the maximum diameter of a branch for a knife-disk design is 2 cm. The knives are bolted to a metal disk offset to the center. This is done in order to set the direction of the processed material towards the center of the device and thereby increase the force of the flywheel.

Motor. For gardening a chopper will do a gasoline engine and an electric motor.

Each engine has its own advantages and disadvantages, therefore, when designing homemade shredder for processing branches and grass, it is important to correctly determine priorities: will the chopper be connected to other agricultural machinery; what the device will be used primarily for processing; How important is the portability of the device?

A gasoline engine is suitable for you if:

you are going to process large, thick branches over 35 mm in diameter;
Device mobility is important to you;
you are not going to connect the crusher to other agricultural equipment.

You are better off choosing an electric motor if:

you are going to use the crusher together with other agricultural machinery (combine harvester);
you are not satisfied with the need to buy gasoline for the engine;
The crusher will be used to chop small branches (up to 20 mm) or greens.

How to make a garden shredder at the dacha with your own hands (double-shaft)

The twin-shaft garden shredder is the most powerful of those that you can build yourself. A properly designed twin-shaft shredder can process branches up to 80 mm thick. You can easily find all the materials and parts that you will need to assemble it in any auto parts store or radio market, and the necessary tools will probably be found in every workshop.

Did you know? If small wood chips can be used to make mulch, then the larger fraction will be useful for a picnic! It is used as fuel for - a good alternative to barbecue or barbecue.

Materials and tools for manufacturing

To make a twin-shaft chopper you will need:

engine;
two metal plates 10 mm thick. Radius - optional;
two synchronizing gears;
pulley for transmitting torque;
pulley on the motor shaft;
two shafts for attaching knives;
five bearings with fastenings;
knives;
profile for the body;
sheet metal for the manufacture of a receiving hopper and a protective casing;
metal pipe for the frame.

Among the tools you cannot do without a welding machine, wrenches, a hammer drill, a lathe (for cutting threads and turning parts), and metal staples are also useful, but they can be replaced by welding.

Step-by-step instruction

You should start by welding the body. First of all, we assemble the frame or frame of the future shredder: we measure two sections of 40 cm and two sections of 80 cm from the pipe. Next, we weld the short pipes perpendicular to the long ones at the required distance (a drum will be placed between the short pipes). The chopper is a rather heavy unit, its weight will be about 15–20 kg. Therefore, in order not to move the device in the future by moving it from place to place, it is advisable to equip it with wheels. The wheels will be mounted on two posts that are welded to the frame.

The next stage is assembling the crushing mechanism. First you need to prepare the surface of the shafts for installing knives. To do this, grind the shaft on a machine, forming three flat cuts.

Make holes in the knives for the bolts
Place the knives on the shaft cuts at an angle of 35–45° towards the center, mark the fastening points and drill holes at the marked points. Then you need to cut the threads inside the holes with a sword.

The drum body consists of metal walls, four connecting pins and a protective casing. For the manufacture of drum walls, sheet metal 10 mm thick is used. In the walls gas burner We make four holes (two in each) for the shaft bearings.

We weld the frame to the drum walls.

Next, we assemble the crushing mechanism: we install bearings on both edges of the shafts and bolt the knives along the cuts of the shafts.

The pulley is attached to a key. To do this, use a gas torch to make a square hole in the center of the pulley the size of the key and the same hole in the shaft, after which both elements are connected with a key.

Installation of the mechanism on the frame. Install the motor and secure the pulley to it, then install the drum on the frame and connect the drum pulley and the motor pulley using a belt.

Receiver design. The walls of the receiver are also made of sheet metal. For the receiving compartment, you can use thinner metal than for the walls of the drum - from 3 to 5 mm thick. Mark and cut the sheet into four equal parts in the shape of a trapezoid.

Measure 5 cm from the edge of the narrowest side of one of the pieces and make a bend.

If the sheet has a reverse and front side, then make sure that the bends on the other three parts are made in the opposite direction.

Then assemble the parts in the form of a box and secure them at the seams with welding or metal staples. Now the receiving compartment is ready!

The installation of the receiving compartment on the structure is done as a last resort. The receiver is installed in front of the drum hole and attached to the facade using bolts, for which holes are pre-drilled on the flaps of the box.

Finally, a protective casing is formed from sheet metal for the rotating elements of the device in order to avoid possible injury during use.

Important! Fastening to a dowel is not the only option: fastening to a bolt with a pin or several bolts is also possible, but at home the easiest way is to mount to a dowel.

DIY disc chopper

The design of a disk chopper is simpler than a two-shaft chopper. Its design is based on the well-known shear principle, only the torque is transmitted by the engine and not manually. This crushing mechanism consists of a frame, a disc with knives and a motor. This homemade shredder is designed for processing small branches up to 20 mm in diameter.

In order to build a chopper, we will need:

engine;
pipes for the frame;
sheet metal 5 mm thick to create a disk;
sheet metal up to 5 mm for the protective casing and receiver.

It is better to buy crusher knives. Factory knives are made of tool steel grades, which will ensure their strength and wear resistance. You can make knives yourself, using a car spring for this, for example, if you have an extra one, of course. But still, a factory knife will be a grateful contribution to a future tool.

Assembly of the structure

Construct a support for the unit from the pipe. One of the most successful variations of frames for such a crusher is a cube with fastenings for the structure in its upper part and wheels for movement in the lower part.

From a 5 mm sheet of metal, cut out a disk with a diameter of 400 mm and make a hole in the center for the shaft.

Next, drill holes for the knives in the disk.

After the knives are attached to the disk, the disk is attached to the shaft and the structure is attached to the motor.

The receiving compartment for a disk chopper is made in the same way as for a twin-shaft chopper.

When making a wood chip cutter with your own hands, you may find drawings useful. Despite the fact that the design is quite visual, with the help of drawings you can calculate everything required sizes and better control over the assembly order. Below are examples of drawings for a disk chopper. The entire structure.

Individual elements with descriptions.

Did you know? Interestingly, the growth and development of a tree crown can be influenced not only by pruning. The orientation of the young shoot in space has a great influence on the yield: by directing the shoot upward, you will achieve more powerful growth, while the horizontal orientation will contribute to a denser formation of flower buds.

So, to summarize, it would be advisable to name all the pros and cons of a homemade unit.

"Behind":

a homemade wood chipper will cost almost twice as much as a purchased one;
homemade devices are usually very reliable and durable;
the crusher will require minimal maintenance, which you can easily provide yourself;
Understanding the structure of the device and the absolute replaceability of parts will make the mechanism almost eternal.

"Against":

availability of free time to prepare parts and assemble the structure;
the presence or need to develop certain technical skills during the process (turning parts on a machine).

Good luck in your endeavors!

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The garden plot is a place where you can enjoy lush greenery for breakfast and bird trills in the morning, as well as spend a pleasant time immersed in the fresh colors of nature. If we look at the garden from a more prosaic point of view, then creating a neat garden is impossible without eliminating plant waste. Spring pruning fruit trees, cutting out old strawberries and raspberries, a sea of weeds after weeding the beds - all this is piled up in order to be burned at the end of the season. Thrifty owners who know how to use this waste for good create compost heaps, which in 3-4 seasons transform all this stuff into excellent organic fertilizer. When you decide to create your own garden shredder, you can get excellent material in the form of wood chips or flour, which is convenient to use to speed up the fermentation of compost.

Operating principle of the grinding device

A homemade garden shredder will not only help you get practical benefits from waste, but also make it easier to bring beauty to your yard. With the help of such a chopper you can crush any plant residues into small chips.

Such chips look interesting as decorative mulch for paths and flower beds

The chopper works on the principle of a meat grinder, in which a 1.5-7 cm branch, falling into the receiving hopper and moving to the grinding system, is easily ground into small chips. The hopper is a structure that prevents clothing and hands from getting into the area of the rotating knives. The grinding system consists of a cutter and several knives. The thickness of the shaft depends on the purpose of the device, so to chop thin 3 cm branches, an 8 cm shaft is installed.

Wear protective glasses and gloves when working with the shredder.

The performance of the equipment directly depends on the engine power. Thus, a chopper, the engine power of which is in the range of up to 2.6 kW, is capable of grinding branches d = 5 cm.

Construction assembly stages

A homemade garden waste shredder is not much different from the industrial analogues of these devices. A stationary chopper can be made on the basis of a circular saw. To do this, it is enough to replace the discs in the unit with a cutting shaft or cutter, and also attach a receiving hopper box. Or use these saws as a chopping device, placing several pieces on the shaft at the same time.

When creating a garden shredder with your own hands “from scratch,” you must first of all purchase a motor. The electric motor is the best option for quick grinding of raw materials in relatively small volumes. The electric motor is silent in operation and does not emit exhaust gases. Such characteristics of the electric motor allow it to be used not only for local area, but also in enclosed spaces. The only drawback of the device is the need to connect to the power supply system.

To work with coarse material in sufficiently large volumes, it is most preferable to use a walk-behind tractor, the power of which is significantly higher than the power of a traditional electric motor.

Advice. The use of circular saws with carbide tips will allow you to create a reliable and durable knife that does not require periodic sharpening.

For assembly quality knife an average of 10 to 20 saws with a thickness of 6-10 cm are required.

Installation of cutting saws

Cutting saws are mounted on a pin - an axis whose diameter is equal to the diameter of the landing disks. To assemble the cutting device, you will also need nuts and washers of the same size. You need to prepare in advance thin washers that can be cut out of plastic. These washers will be required to space the discs at an equidistant distance from each other so that their slightly protruding teeth do not cling to each other when rotating. The number of washers should be 1 element less than the number of disks.

A pulley is installed on a pin strung with disks, which can be taken from a pump or from a VAZ generator. To rotate the axis you will need two bearings with internal d=20mm

Manufacturing and arrangement of the frame

You can come up with a lot of design options, it all depends only on the imagination, ingenuity and desire of the craftsman.

All owners of garden plots, or people living in the private sector, are faced with the problem of disposing of dry cuttings of tree branches and shrubs.

Every year the pile of brushwood increases, spoiling the appearance of the site and creating fire danger. How to properly get rid of old dry branches?

Use the services of a waste removal and recycling company. Effective, but expensive. You voluntarily give the material into the wrong hands and pay money for it;
Burn a bunch of dry cuttings right on the site. Completely free, except for the possible payment of a fine. But at the same time, you inhale choking smoke and create inconvenience for your neighbors. Not to mention the danger of fire for buildings on the site. The place over which the fire burned remains infertile for several years;
Process the trimmings into compost for subsequent fertilization of your green spaces. The method is ideal, however, it takes a long time for whole branches to rot into compost. The process will speed up if you grind them into chips. There is a special device for this - a garden branch shredder.

The principle of its operation is simple - a cutter rotates inside the mechanism, grinding the branches into a homogeneous mass.

The drive can be manual, mechanical (using an internal combustion engine), or electric. The last option is the most popular due to its simplicity of design.

These devices are widely available on sale, but you can make a branch chopper with your own hands. Of course, the design will not be completely free. Some components will have to be purchased.

How to make a garden electric wood chipper with your own hands

What is needed for production:

Electric motor with a power of about 1-2 kW;
Circular saws with a diameter of 100-200 mm in the amount of 10-15 pieces or a milling cutter with large teeth;
Steel circle or finished axle. The diameter must correspond to the mounting socket of the circular saws;
A set of washers 5-7 mm thick to separate discs. The inner diameter must match the thickness of the axle. Quantity according to the number of circular saws;
A belt with pulleys for transmitting torque from the engine. Suitable from the domestic auto industry;
Channel or corner for the frame;
Steel sheet 3-5 mm thick for the working hopper;
Steel sheet 2-3 mm for the guide socket;
A pair of wheels from garden cart if the homemade wood chipper is supposed to be moved from place to place;
Welding machine, grinder, drill, set of fasteners.

How to make a branch chipper based on circular saws?

We purchase 10-15 blades, preferably with attachments for hard steel teeth. We select or manufacture a set of steel spacer washers to separate the disks on the shaft.

The distance between the saws should be about 10 mm. If you do more, small branches will get stuck; if you do less, the width of the working area will decrease.

We place a package of disks with washers on the shaft. It can be turned into lathe, or use a suitable one from an old car gearbox.

Important! The teeth of circular saws should not be located in one line. They can be arranged offset, or better yet, in a chaotic order. In this case, the load on the shaft and, accordingly, the engine will be lower, extending the life of the structure.

We weld a strong frame from a channel or corner. We install the foundation for the electric motor from below. Be sure to provide the ability to move the engine to regulate the tension of the drive belt.

After pruning fruit trees and shrubs in garden and personal plots enough remains a large number of branches.

Burning them will harm the soil and other trees. It is irrational to chop wood for heating a house, since it will not produce high-quality logs.

But if you pass unnecessary branches through a shredder, you can turn them into valuable raw materials.

Let's consider the option of making a simple but reliable wood chipper with a set of circular saws powered by an electric drive.

The electric drive of the device does not pollute the air with exhaust gases from heat engines and reduces the noise level.

The main elements of a wood chipper are:

cutting block;
electric motor;
Belting;
receiving hopper;
frame;
protective casing.

The cutting block is the main working part of the shredder, which directly chops the branches. The block is a threaded shaft with a diameter of 20 mm.

A package of disks with hard alloy teeth is assembled on it. Washers are placed between the saws, which provide clearance and prevent the teeth from pressing against each other. Ball bearings are mounted at the ends of the shaft.

The electric motor is designed to rotate the cutting unit shaft. Works for alternating current voltage 220 V. Power not less than 2.5 kW. This allows you to process branches up to 5 cm thick. With an engine power of 3-3.5 kW, the chipper can handle even thicker branches.

A belt drive is necessary to transmit power from the engine to the cutting unit at the required rotation speed. The cutting unit crushes branches well, rotating at a speed of 1500 rpm. The electric motor rotor rotates at a speed of 2500-2800 rpm.

Using the drive belt, you can easily set the desired rotation speed. To do this, a pulley is mounted on the cutting block shaft large diameter, and a pulley with a small diameter is installed on the motor shaft. A pulley is a wheel with a groove for the drive belt.

The receiving hopper is a metal cone-shaped structure through which the branches are fed to the cutting unit. The frame is a strong supporting structure on which all elements of the unit are mounted.

The casing is protective element, covering the rotating and cutting parts of the shredder. It is made of light metal, as it does not bear any load.

Assembling a homemade unit

To make a shredder you will need to prepare:

Set of circular saws for wood with large teeth made of carbide – 25 pcs. Sold in stores. The landing (inner) diameter of the saws is 20 mm, the outer diameter is 180 mm.
Threaded rod M20 – 1 pc. used as a shaft. Sold in stores or can be made to order.
Separating washers with a thickness of 5 mm, an outer diameter of 130 mm and a hole of 20 mm - 24 pcs. Make your own from plastic or resin.
Sheet of galvanized steel 1.5 - 2 mm thick for the manufacture of a hopper and casing.
Ball bearings – 2 pcs. internal diameter 20 mm. Can be used.
Fastenings to ball bearings – 2 pcs.
Steel pipes, channel and angle for making a frame.
Pulley for the electric motor shaft – 1 pc. outer diameter 60 mm. Select or make.
Pulley on the cutting block shaft - 1 pc. Outer diameter 120 mm. Choose or make your own.
M20 nuts – 2 pcs. for the block shaft.
Nuts, bolts and screws for fastening various parts(bearings, moving elements of the belt tension system, etc.).
Drive belt - 1 pc.
Electric motor with a power of 3 kW. Can be used.
Cable and starter for supplying power to the electric motor.

Specialist's note: It is imperative to check the electric motor for the absence of an interturn short circuit.

You also need to prepare:

welding machine;
grinder;
metal scissors or chisel and hammer;
wrenches and screwdrivers for nuts, bolts and screws;
metal brushes for cleaning welding seams;
primer and paint for painting the finished unit.

The shredder is assembled in the following order:

Blanks for the frame are cut from pipes, channels and angles.
Weld the frame.
A package of saws and separating washers is assembled on the cutting block shaft.
Bearings are mounted on both ends of the shaft.
A large diameter pulley is mounted on the long end of the shaft.
The shaft is secured to the frame with bolts and nuts.
A small diameter pulley is installed at the end of the electric motor shaft.
The engine is attached to the frame so that both pulleys are on the same side.
A belt is put on both pulleys, the tension of which is adjusted by moving the engine.
Blanks for the receiving hopper and casing are cut from sheet metal.
The blanks are welded.
The hopper and casing are installed in their places and secured to the frame with bolts and nuts.
A cable with a starter is connected to the electric motor.
A test run is carried out and the functionality of the unit is checked.
Welds and metal are cleaned, coated with primer and painted.