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Oct 24, 2021
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DIY grass chopper

DIY grass chopper

After cleaning the garden or weeding the garden, there is a lot of grass and weeds. If their stems are crushed, then we get a wonderful mulch, as well as quickly processed raw materials for the compost heap. To do this, you need to make a chopper of a simple design.

Materials:

  • Electric motor 0.75 kW 3000 rpm;
  • corner 50×50 mm;
  • a pulley on the motor shaft;
  • sheet steel 3-5 mm;
  • pipe 300-400 mm;
  • segments from a tractor mower – 2 pcs.;
  • galvanized sheet;
  • bolts, nuts.

Grinder manufacturing process

DIY grass chopper

The manufacture of a shredder should begin with assembling the frame for mounting the engine. For the convenience of loading grass in the future, it should be located low and with a slope. For this, the legs are welded from the corner. The front ones are vertical, and the building is at a 45-degree angle. The engine is screwed to the frame using its standard mount.

DIY grass chopper

A steel plate is welded onto the motor housing, which is required to attach the chopping chamber. Holes are drilled in its corners. A sheet steel flywheel with two ribs in the form of strips must be fastened to the motor shaft. These blades are used to create turbulence and to blow the chopped grass out of the chopper. A rotor is installed on the end of the shaft. That one is a pulley or disk, with knives from a tractor mower screwed on.

DIY grass chopper
DIY grass chopper

The cylindrical body of the grinding chamber is made from a large diameter pipe, barrel, or bent and welded from sheet steel. At the bottom, 4 eyes are welded to it to light it up to the plate on the motor. On the side, opposite the rotor, a window is cut out to eject the chopped grass. From the inside, 2 air flow guides are welded into the cylindrical body. They will amplify the vortexes required to eject the cut.

DIY grass chopper
DIY grass chopper
DIY grass chopper

From thin galvanized steel, you need to roll up and rivet the cylinder. Such a removable extension will greatly simplify the casting of grass.

DIY grass chopper

Such a shredder will allow you to process grass into mulch, or raw materials for a compost pit. It can also be used to prepare hay and straw for the production of adobe.

DIY grass chopper
DIY grass chopper

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