Fruit and Vegetable Size Screening and Sorting

Parameter Item	Technical Specification
Overall Dimension (LWH)	36009501420mm (customizable length)
Screening Size Range	20mm - 150mm, stepless adjustable gap
Single Material Weight Range	10g - 1200g
Max Screening Levels	3 levels (small/medium/large), expandable to 5 levels
Hourly Processing Capacity	0.8 - 3 tons/hour (adjustable by speed)
Screening Accuracy	≥99.2%
Working Voltage	220V/380V 50Hz optional
Total Power	2.2KW
Operating Noise	≤55dB
Waterproof Grade	IP54
Main Material	304 stainless steel + food-grade rubber roller + carbon steel spray frame
Working Environment	0℃~50℃, humidity ≤95% non-corrosive environment

Adjustable roller gap screening structure: Adopts inclined double-row rotating roller design. The gap between two rollers can be manually and electrically adjusted in real time, realizing multi-range size screening without replacing spare parts. It is applicable to round, oval and long-strip fruits and vegetables.
Full food-grade contact components: All parts touching materials are made of 304 stainless steel and food-grade rubber coating. The rubber outer layer of rollers prevents scratch, bruise and peel breakage on soft fruits like peaches, grapes and cherry tomatoes, complying with FDA food hygiene standards.
Waterproof and easy-clean structure: The whole machine reaches IP54 waterproof grade, with open-frame design without dead corners. Operators can directly wash the roller surface and rack with high-pressure water guns after daily operation, which fits high-humidity fresh processing workshops.
Stepless speed regulation transmission: Equipped with frequency conversion motor to adjust conveying speed freely. It avoids material accumulation and blocking caused by fast feeding, ensuring stable single-layer material conveying for accurate screening.
Integrated diversion bin design: Equipped with independent collecting bins for undersized, qualified and oversized materials. Each bin is equipped with detachable material baffles to prevent cross-mixing of screened materials.

Wide material compatibility: Suitable for rhizome vegetables (potato, carrot, garlic, ginger), stone fruits (apple, citrus, pear) and small berries. It covers over 90% of common fresh produce, one machine for multiple uses.
Ultra-low material damage rate: Compared with traditional vibrating screening machines, roller rotating screening reduces collision friction, with damage rate controlled below 0.5%, greatly improving commodity rate of fresh produce.
Significant labor cost saving: Replace 8-10 manual screening workers. It solves labor shortage during harvest peak season and ununiform manual screening standards.
Low operation and maintenance cost: Simple mechanical structure with few vulnerable parts, no complex visual control system. Daily maintenance only needs regular cleaning and lubrication, failure rate less than 1%.
Flexible site adaptation: Compact overall footprint, movable universal casters optional. It can be freely moved in workshops, cold storages and outdoor picking sites without fixed foundation installation.

Our fruit and vegetable size screening and sorting system is a cost-effective roller-type screening equipment independently developed for fresh produce growers, primary processing plants, cold storage distributors and fresh export enterprises. Focused purely on dimensional size separation, it abandons redundant visual detection modules and prioritizes stable operation, low damage and easy maintenance, perfectly matching the basic grading demands of most fresh suppliers.

Different from vibrating screeners that cause severe material collision, this system adopts inclined rotating roller transmission. Fruits and vegetables roll forward naturally under gravity, and fall into corresponding collecting bins through roller gaps according to actual size. The whole conveying process has no forced extrusion, which effectively avoids surface bruising, water loss and peel damage of fragile fresh materials. All material contact parts comply with international food safety regulations, meeting export inspection requirements for European, American and Southeast Asian fresh markets.

Operators can adjust roller gaps and conveying speed simply via the frequency conversion control panel without professional technical training. The open structural design eliminates sanitary dead angles, supporting daily high-pressure water washing to prevent mold and residual dirt accumulation. Optional movable casters allow flexible deployment across multiple working sites, saving workshop space and foundation construction costs.

This equipment can be used independently or connected with upstream cleaning, air-drying machines and downstream packaging equipment to form a complete fresh pre-processing line. With long service life, low power consumption and zero complex debugging, it is the most cost-effective choice for standardized size screening of bulk fruits and vegetables.