Washing system

We only wash plastics that will be used for extrusion.

Our washing system is a three-chamber wash-line powered by turbines connected by a chain channel and a geared motor.

How it works

Plastic flakes are added to the first water-filled chamber.
Turbines propel the flakes through the chambers.
Flakes are collected manually using a sieve in the third chamber.
A 5mm stainless steel sieve at 0.5m depth catches sinking materials, while mud settles at the bottom.

Types of turbines used

Each turbine runs at a similar speed, but they handle different loads:

Closed-plate turbine – Moves flakes with a lot of water.
Holed-plate turbine – Moves flakes with minimal water.
Spiked-plate turbine – Moves flakes with minimal water.

Washing system with turbines

Cleaning process

Water, soap, and chlorine (350g per 3000L) are added daily to keep the water clear.
Fresh water is added in the first or third chamber, and it overflows into the second.
Soft plastics are washed manually in a large tank, like washing clothes.

Important tip

Sinking materials should be removed after every wash to prevent colour and polymer contamination.

This system helps us effectively clean plastics while reducing water waste and cross-contamination.

Wastewater treatment 

washing line drawing

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