Luo Han Guo Vibrating Screen

Updated: 2026-07-29

Overview

The Luohanguo vibrating screen is a mechanical sieving device designed specifically for processing Luohanguo (monk fruit) extract, a natural sweetener widely used in food and pharmaceuticals. It employs a rotary vibration mechanism to separate particles by size, ensuring product consistency and quality. This equipment is favored for its adaptability to high-moisture materials like Luohanguo extract, which requires gentle yet efficient sieving. Its design minimizes heat generation, preserving the extract's bioactive compounds during processing.

Structure and Working Principle

The screen consists of a motor, vibration generator, sieve frames, and mesh layers. The motor drives an eccentric block, creating a three-dimensional vibrating motion that propels particles across the mesh. Fine particles pass through, while larger ones are discharged separately. Key structural elements include stainless-steel contact parts for hygiene and rubber springs to reduce noise. The multi-layer sieves allow simultaneous grading into different particle sizes, optimizing throughput for industrial production lines.

Key Features

1. **Precision Sieving**: Adjustable vibration amplitude (commonly 2–5 mm) enables control over particle separation accuracy. 2. **Hygienic Design**: Fully enclosed structure prevents contamination, critical for pharmaceutical applications. 3. **Energy Efficiency**: Low-power motors (typically 0.5–3 kW) reduce operational costs. Additional features may include ultrasonic deblinding systems to prevent mesh clogging and CIP (Clean-in-Place) compatibility for strict hygiene environments. Custom screen sizes (usually 600–1800 mm diameter) accommodate varying production scales.

Application Areas

Primarily used in Luohanguo extract processing plants, this equipment also serves adjacent industries: 1. **Food Manufacturing**: Grading monk fruit powder for sweetener production. 2. **Pharmaceuticals**: Ensuring uniform particle size in tablet formulations. 3. **Herbal Extracts**: Processing similar viscous botanical materials. In B2B contexts, it's often integrated into turnkey extraction lines alongside dryers and packaging systems. Recent adaptations allow use with other hygroscopic materials like stevia or mushroom extracts.

Maintenance and Precautions

Regular maintenance includes monthly bearing lubrication (high-temperature grease recommended) and mesh inspection for wear. Replace screens when deformation exceeds 5% or hole enlargement occurs. Critical precautions: 1. Avoid metallic contaminants during operation. 2. Balance material feed rates to prevent uneven sieving (ideal capacity: 100–500 kg/h depending on model). 3. Store in dry environments to prevent electrical component corrosion. Always power off before cleaning.

B2B Procurement Guide

When sourcing Luohanguo vibrating screens: 1. **Certifications**: Prioritize suppliers with CE, ISO 9001, and GMP compliance. 2. **Customization**: Request food-grade silicone gaskets if processing high-purity extracts. 3. **After-Sales**: Ensure availability of spare parts like mesh screens (typically 80–400 mesh) and vibration motors. For reference, lead times range from 15–45 days for standard models. Consider FOB pricing terms and verify supplier experience with monk fruit processing equipment specifically.