Fruit and Vegetable Size Grading and Sorting System

Parameter Item	Technical Specification
Overall Dimension (LWH)	420012001550mm (customizable size available)
Applicable Produce Size Range	15mm - 120mm diameter
Single Produce Weight Limit	5g - 800g
Max Grading Levels	8 adjustable size grades
Processing Capacity	1.2 - 2.5 tons per hour
Size Grading Accuracy	±0.1mm, error rate ≤0.3%
Rated Working Voltage	380V/50Hz three-phase AC, 220V optional
Total Rated Power	4.2 KW
Operating Noise	≤52dB, low noise for workshop indoor use
Protection Grade	IP65 waterproof and dustproof
Main Contact Material	304 food-grade stainless steel + medical-grade soft silicone
Working Environment	5℃~45℃, humidity 40%-95% RH
Control System	PLC intelligent control + 10-inch capacitive touch screen

Food-grade full stainless steel structure: The whole material in contact with fruits and vegetables adopts 304 food-grade stainless steel, which complies with EU food hygiene standards LFGB. All conveying rollers are wrapped with soft silicone cushioning layer, avoiding surface scratches, peel damage and bruising on soft fruits like peaches, strawberries and tomatoes. No rust or mold growth in humid cleaning environments.
High-precision visual size detection module: Equipped with dual HD industrial cameras and 3D laser ranging sensors, supporting two-dimensional diameter and three-dimensional volume synchronous measurement. It can identify irregular-shaped deformed fruits that traditional roller graders cannot detect, with measurement resolution up to 0.1mm.
Adjustable multi-grade grading threshold: Users can freely set 3-8 grading size standards via touch screen. The system stores 50+ preset parameter templates for common produce including citrus, kiwi, garlic, onion, which can be switched with one click without mechanical disassembly.
Dust and water resistant integrated design: Core electrical components are equipped with IP65 waterproof enclosure. The whole machine supports direct water flushing for daily cleaning, adapting to high-humidity, dusty workshop environments of fresh fruit primary processing factories.
Non-stop fault self-inspection function: Built-in real-time monitoring system for conveyor speed, sensor deviation and material blockage. It will trigger sound-light alarm and automatic material backflow when jamming occurs, without shutting down the whole production line.

Improve commercial produce yield: Manual grading has an error rate of 8%-12%, while this system keeps grading error below 0.3%. Uniform-sized fruits gain 15%-20% higher wholesale prices in overseas supermarkets and fresh e-commerce platforms.
Massive labor cost reduction: One single grading system can replace 12-15 manual sorters. It eliminates repetitive manual size screening work, solving the problem of labor shortage and high personnel turnover in seasonal fruit picking periods.
Wide compatibility for diverse produce: Applicable to both hard-shell fruits (apple, pear, citrus) and soft fragile fruits (cherry, grape, cherry tomato), as well as rhizome vegetables (potato, carrot, ginger). No need to replace core parts for different materials.
Low operation and maintenance cost: Adopt brushless silent motor with 30% lower power consumption than traditional grading equipment. Wearing parts such as silicone rollers have a service life of 3 years, and daily maintenance only requires regular water cleaning without lubrication.
Easy line integration: Standard butt interface matches fruit washing, waxing, drying and packaging assembly lines. It can be installed as standalone equipment or embedded into full automatic fresh produce processing lines.

Our automatic fruit and vegetable size grading and sorting system is tailor-made for fresh produce farms, primary processing factories, cold storage distribution centers and fresh export enterprises. It focuses on precise size classification of ungraded raw fruits and vegetables after picking, solving pain points of low manual efficiency, inconsistent grading standards and high fruit damage rate in traditional processing.

Different from traditional mechanical roller graders that only measure single diameter, this equipment adopts 3D laser visual detection technology to conduct omnidirectional size scanning for each individual produce. It can accurately screen out oversized, undersized and irregular deformed fruits that are easy to be mixed into qualified products. The whole conveying path uses elastic silicone buffer protection, which greatly reduces fruit surface bruising, peel peeling and collision damage, keeping the commercial appearance of fresh produce intact.

Equipped with a humanized touch screen operation panel, operators can modify grading parameters, view real-time output data, and export daily grading reports without professional technical training. The IP65 waterproof design allows direct high-pressure water flushing after daily production, meeting strict food safety cleaning requirements stipulated by FDA and LFGB for cross-border fresh exports.

With flexible modular structure, the system supports customized grading outlet quantity and conveyor length according to customer site layout. It can be matched with upstream fruit washing, air drying, waxing machines and downstream packaging, boxing machines to form a fully closed automatic fresh processing assembly line. With stable operation, ultra-low failure rate and 24/7 continuous working capability, it is the core intelligent equipment for improving fresh produce added value and meeting international export inspection standards.