In this plant lay-out, tyres undergo several operations: Tyres are first processed into chips of 2 inches (50 mm) in size in a preliminary shredder; The tyre chips then enter a granulator - in this processing step the chips are reduced to a size of smaller than 3/8 inches (10 mm); Steel is removed magnetically and the fibre fraction is removed by a combination of shaking screens and wind sifters; There are successive grinding steps to obtain the appropriate size, usually between 10 and 30 mesh (0.6 mm to 2 mm).
(ب) تدخل شرائح الإطارات بعد ذلك في جهاز الطحن، حيث تتقلص الشرائح في هذه الخطوة من التجهيز إلى حجم لا يزيد عن 3/8 بوصة (10 ملم)؛