Overview
The PPR Rotary Pre-Cleaner is designed to quickly remove light and heavy impurities from cereals. It is crucial for maintaining cereal quality by being installed at the dryer inlet. The device homogenizes the product, prevents clogging, and reduces energy consumption. An optional aspiration version minimizes dust emissions.

Functionality
The product enters a cylindrical rotating drum by gravity, which is equipped with interchangeable perforated screens. Good product passes through pre-set holes, while rough impurities are expelled at the drum's end. Screen selection depends on product size, moisture content, and type of impurities.

Components

• Product with impurities inlet
• Product outlet (By-Pass)
• Light rejects outlet
• Clean product outlet
• Heavy rejects outlet

Specifications
The document provides detailed specifications for various models of the PPR Rotary Pre-Cleaner, including:

• Output capacity ranging from 20 to 375 t/h
• Screen area from 2.5 to 45 m²
• Number of screens from 2 to 5
• Power requirements from 0.75 to 100 kW
• Dimensions and weight for each model

Key Parameters

• Cleaning output is based on wheat with a specific weight of 0.78 t/m³ and 14% relative humidity, with 2% impurities.