Rubber Raw Material

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Rubber Raw Material

In the rubber industry, conveying systems are mainly used for handling raw materials such as carbon black, silica, zinc oxide, sulfur, plasticizers, rubber granules, and additives. Because most of these are powders or granules, the conveying systems must ensure dust-free, accurate, and safe feeding into mixers, kneaders, and weighing systems.

1. Vacuum Conveying System

Common for carbon black, silica, and fine powders.

Provides dust-free transfer, which is important because carbon black and silica are very light and dusty.

Easy to integrate with weighing, batching, and mixing systems.

2. Pneumatic Conveying System (positive or negative pressure)

Used for long-distance bulk transfer of powders and granules from silos to production lines.

Often applied for large-volume carbon black and silica feeding in tire and rubber compounding plants.

3. Screw Conveyors & Screw Feeders

Common for short-distance transfer of powders, pellets, or granules.

Reliable and cost-effective for feeding into mixers and weighing hoppers.

4. Tube Chain (Tubular Drag) Conveyor

Suitable for abrasive powders like silica or materials requiring gentle conveying.