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Granulating Polypropolene Car Bumpers

I have access to a Zerma GSL180 and also a ? both with a 5mm sieve. A 2mm sieve would also be sufficient.

Before granulating the bumpers wash them with water and try to brush off as much dirt and dust as possible. Remove any foreign materials expecially any metal such as metal clips. Thoroughly dry the plastic is dry before I continue to process it.

For a time I was sanding off the paint however I tested the regrind with ‘paint on’ in the injection mould machine and there was no issue…….. so I grind the plastic with ‘paint on’

Due to the size of these granulators mentioned above, I use either a jigsaw or bandsaw to cut up the bumpers into approximately 15cm x 15cm pieces. It is important to feed these pieces into these smaller granulators slowly to avoid chocking the grind teeth.

and also a ? both with a 5mm sieve. A 2mm sieve would also be sufficient.

Before granulating the bumpers wash them with water and try to brush off as much dirt and dust as possible. Remove any foreign materials expecially any metal such as metal clips. Thoroughly dry the plastic is dry before I continue to process it.

For a time I was sanding off the paint however I tested the regrind with ‘paint on’ in the injection mould machine and there was no issue…….. so I grind the plastic with ‘paint on’

Due to the size of these granulators mentioned above, I use either a jigsaw or bandsaw to cut up the bumpers into approximately 15cm x 15cm pieces. It is important to feed these pieces into these smaller granulators slowly to avoid chocking the grind teeth.