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How to make a grain mill from a washing machine

washing machine grain crusherA grain crusher in a small farm is an indispensable thing, because the “crusher” is the forage base for livestock, and preparing it manually each time is more than time-consuming. You can buy a factory grain mill for a lot of money, or you can make a productive device yourself from an old washing machine, and it will be no worse. How to do this will be discussed later.

Does it make sense to turn the "washer" into a grain mill?

For those who are looking for easy ways, the easiest way is to go to the nearest outlet that implements such devices and buy a grain crusher of sufficient productivity. Of course, you will have to spend money on this, but the result will be guaranteed. But in our opinion, it’s better to make such an adaptation with your own hands, in it you will show your creative “I”, save money, and in general, there will be something to remember later.

washing machine grain crusherYou also need to understand that when you create a homemade product with your own hands, you give a second life to the old washing machine, get rid of the old trash, turning it into the right thing. In addition, you are enriched with new knowledge and skills that will certainly come in handy in life. Do not think that we force someone to do home-made products, if you have never “closely communicated” with technology and have no interest in this, then no one will be able to motivate you to do this. But if you have already done something with your own hands, then no additional motivation is required.

From a used “washing machine” it is really possible to make not only a grain crusher by reading other articles on our site, you will be convinced of this. In particular, our experts suggest making emery from the washing machine, concrete mixer and other useful things that will certainly come in handy on the farm.

Note! The design of the grain crusher that we offer involves a minimal alteration of the “washing machine” such as the Oka or another round machine with a similar design.

The device of the grain crusher and its accessories

The basis of our grain crusher will be the Oka washing machine, which we will not even disassemble. The only thing we will need to remove the activator from it, or rather its rotating plastic part, we need the rest. Unscrew the activator and remove the car while to the side. Now let's get to the selection of tools, we will need:

  • drill;
  • set verified;
  • pliers;
  • set of open-end wrenches and socket wrenches;
  • Bulgarian;
  • chisel;
  • hammer.

We also need some components that will help to subject our machine to some alteration. Bolts and nuts of different sizes, a pruning shears, a sleeve and a flange, a tin and rubber gasket, and a fine-grained grill (2-3 mm).

We figured out the tools and components, now we will consider the general idea and design of the future grain crusher. The device will be very spacious, since the entire washing tank is allocated for the grain tank. Instead of the activator there will be knives for grinding grain, and a restrictive fine-grained grate will not allow unshredded grain to jump out of the hopper. Only crushed grain will pass through such a grate, slide through a special funnel and fall into a pre-set bucket.

Important! The grain that is poured into the hopper, which is also the washing tank, will gradually go down, and the crushed “crusher” will come out.


washing machine grain crusherWe begin to design a grain mill with our own hands. Let's start with a simple one - install chopper knives. You will need to put the knife on a 6 cm thick pulley, for this you will have to make or pick up a flange that would fit on the pulley on one side and fix the knife on the other (the type of flange will depend on the specific machine model and type of chopper knife).

Having dressed a knife, we will have to make sure that flour and grain particles do not fall into the drive mechanism of the grinder. To do this, we will cut a patch out of tin and fasten it by putting it on the chopper sleeve, and on top we will need to put on a rubber patch. Make sure that the patches do not interfere with the rotation of the mechanism.

Important! To better protect the mechanism from flour dust, you can additionally seal the rubber gasket with silicone sealant.

Now we will equip a funnel for removal of the crushed grain. As you know, the drain of the washing machine is located at the lowest point of the washing tub. We will use this and turn the drain hole into a grain outlet.

  • Using a chisel and a hammer, we expand the drain hole so that its diameter becomes 12-15 cm.
  • We take a piece of the pipe of the corresponding diameter and insert it into the expanded hole
  • We bring the pipe to the side. Now the crushed grain will exit the hopper and spill out into the container.

washing machine grain crusherFurther the most difficult step is to fix the fine-grained grate at the desired angle in the hopper, avoiding gaps between the edges of the grate and the walls of the hopper, otherwise the grain will slip into the slots, and will end up in the same container with the “crusher”. You need to do the following:

  1. Determine the radius of rotation of the chopper knives and make a mark at the maximum point.
  2. Step back a little from the mark and draw a straight line - this is the border at which you need to install the fine-grained grating.
  3. Now your task is to cut the grate so that it exactly fits at an angle from wall to wall of the hopper with virtually no gaps. It will turn out a complex figure, which will need to be securely fixed.
  4. Screw the grate to the walls of the hopper as securely as possible. If possible, it can even be welded.
  5. We coat the cracks with cold welding or car sealant and allow to dry.

Now we can say that you managed to make a grain mill with your own hands, you can proceed to the tests. We set the mode on the control panel, which assumes the maximum rotation of the activator, about 3 minutes and start our grain crusher. We watch how the knife rotates, and we listen for any extraneous sounds. Then we check how the engine heats up, and whether there is excessive friction in the drive mechanism.

Having checked all this, you can proceed to the first "field tests" of our grain crusher. Pour a bucket of grain into the hopper, close it with a regular lid from the washing machine on top, and start the unit. At the same time, do not forget to substitute the container for crushed grain. That's all, we hope you succeed!


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