Belts for peanut shelling machines are typically specially designed food-grade conveyor belts. They not only transport raw peanuts and shelled peanut kernels but must also meet multiple special requirements such as food safety, wear resistance, and anti-adhesion.

Key Features and Requirements

Food-Grade Material:

Must comply with national food contact material safety standards.

Typically manufactured from white food-grade PVC (polyvinyl chloride) or food-grade silicone rubber. White is a common color in the food industry, facilitating inspection of cleanliness and detection of foreign objects.

Non-toxic, odorless, and will not contaminate peanuts.

 

Anti-Adhesion:

Peanut shelling and hulling generate significant dust, shell fragments, and oils.

The belt surface requires special treatment (e.g., smooth finish or specific coating) to prevent kernels, red skins, or debris from adhering, ensuring smooth conveyance and self-cleaning.

 

Abrasion and Tear Resistance:

Hard peanut shells subject the belt to continuous friction and impact within shelling machinery.

The belt core typically incorporates a high-strength synthetic fiber skeleton (e.g., polyester fiber) to prevent elongation or tearing under heavy loads and friction.

 

Flexibility and Stability:

The belt must possess good flexibility to accommodate roller curvature and smaller pulley diameters.

It should exhibit dimensional stability, resisting excessive elongation or shrinkage due to temperature or tension variations.