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First ever Injection moulding

I still build various machines, but I have never produced my own items, especially new items from garbage.

I finished the new Shredder lately. To build the Shredder I have used an old Motor with gearbox which was damaged.

Motor with Gearbox – 0.75kW about 400Nm (Nord)

After few months of waiting Engine was repaired, by a friendly company from Jelenia Gora ( my hometown).
When the machine (Shredder) was ready, I wanted to try to make Plastic Carabiners out of garbage.

Shredding the first PET bottle

I used plastic pipes for the water network – that is -Poly Propylene which melts at temperatures between 220° C and 275°C (275°C must not be exceeded) the temperature of 240°C worked out for me.
For injection moulding I used a machine of Injection type which I built a long time ago. The machine works quite well but it requires some improvements to make injection moulding easier.
I didn’t have much time so unfortunately I managed to make 1 test. Which I consider to be a success anyway.

  • 10mm Sieve mounted on the Shredder -worked out for me
  • The material of PP type is very good for manufacturing elements of this type.
  • injection machine melts the plastic very well,( I plan to buy more PID temperature controllers like REX C-100) it goes well on the right temperature – the pipe seems to be just to small – it would be necessary to add some chute.

Currently working on another machine (bigger shredder) I would like to open a store and sell the machine normally.

Thanks for reading

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