SORTING LINE
CHERRIES

Hourglass sorting line to the cherries

Sorting line 2LK-8 is a technologically advanced solution designed for sorting and packaging of cherries and sour cherries.
The system was developed for producers who value accuracy, efficiency and gentle handling of fruit.
Thanks to modern technologies, namely electronic product sorting based on a vision system – the line ensures excellent grading precision while maintaining the full quality of the fruit.
The process encompasses all stages: from water unloading, through sorting and quality control, to ergonomic packaging. The use of intelligent automation reduces human error, increases efficiency, and guarantees complete process repeatability.

A cherry processing and sorting machine with various conveyor belts, metal components, and a red control unit. The system automates the sorting and arrangement of cherries into designated trays.
Red automated cherry sorting machine with multiple trays and conveyor belts for cherry sorting, marked CHERRY SORTING LINE and SORTER, with bins below for collected fruit.

Application and Target industries

Sorting line 2LK-8 is dedicated to companies operating in the fruit growing and soft fruit processing industries that require high precision and delicacy in the sorting process:

 • Fruit farms and producers: sorting cherries and sour cherries according to size, color and external quality.
• Fruit processing plants and freezers: preparation of fruit for processing.
• Export companies and wholesalers distributing soft fruits: preparation of fruit for export, retail sale.

Thanks to its modular design, the line can be adapted to the needs of various producers – from medium-sized farms to large processing plants.

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What does it consist of cherry sorting line

MACHINES MAKING UP THE LINE
ZWR-C
Manual unloading
PTR
Expansion belt conveyor
ZPD14
Platform at the elevator
STV-2
Conveyor belt
2LK-8
Hourglass sorting machine
SPD-7
Fruit packing table
PTP
Fruit bag conveyor belt
Main wardrobe
Control cabinet
A technical drawing depicting a side view of an industrial machine with dimensions, component labeling, and Russian text annotations in black, red, and blue. The diagram includes detailed dimensions and various connected parts.

Why choose Sorting lines for cherries

  • Fruit delicacy and safety:
    The 2LK-8 sorting line was designed with cherries in mind – one of the most demanding and delicate fruits. The water unloading system ensures gentle and safe transport of the fruit, effectively minimizing the risk of bruising, cracking, or loss of gloss. This ensures that the fruit retains its freshness, elasticity, and attractive appearance.
  • Precise vision technology:
    The heart of the line is the 2LK-8 sorting machine, equipped with a modern, high-resolution camera system. Each cherry is analyzed during processing, allowing for a precise assessment of its size, color, and external quality. This technology guarantees exceptionally repeatable results and allows for the creation of multiple quality classes tailored to various markets – both domestic and export.
  • High efficiency and continuity of work:
    The compact design of the 2LK-8 line is characterized by a capacity of up to 1 ton of fruit per hour. Its dual-track design and automatic synchronization of conveyor operation ensure a smooth flow of cherries through all stages of sorting – from unloading to packaging. This means the line is suitable for both smaller farms and large processing plants, where reliability and speed during peak season are essential. The line size can be adapted to the farm's needs.
  • Ergonomics and comfort of use:
    Every stage of the line's operation has been designed with operators in mind. Inspection platforms, packaging tables, and a clear control panel ensure comfortable and safe operation. Operation is quiet (noise level approx. 68 dB), and access to all components facilitates cleaning and maintenance. Safety features, such as guards, emergency buttons, and interlocks, ensure complete personnel safety.

Technical specifications Sorting line for cherries

TECHNICAL SPECIFICATIONS
Precision sorting:
◦ Supported products: soft spherical fruits - cherries and sour cherries
◦ Diameter range: 18–40 mm.
◦ Capacity: from 1 tonne of fruit per hour (depending on variety, calibre and degree of ripeness). Expandable to 6 lanes – capacity increases to 3 tonnes per hour.
◦ Classification of fruit according to size, color and external quality.
Gentle unloading:
◦ Application: ideal for delicate fruits – cherries, sour cherries.
◦ How it works: after unloading, the fruit is conveyed in a stream of water, which reduces impact forces and thus protects them against mechanical damage.
◦ Filtration: 3-stage filtration system keeps water clean and ensures long-term operation in a closed circuit.
◦ Additional equipment: Z-type conveyor, spray nozzles, mechanical filter with automatic impurity removal.
Efficiency:
◦ ~1 t/h (approx. 125,000 fruits/h)
Number of sorting paths:
◦ 2
Number of sorting outputs:
◦ 7 + 1 technical
Line length:
◦ approx. 22 135 mm
Width:
◦ approx. 2,870 mm
Height:
◦ approx. 2,505 mm
Power supply:
◦3 × 380/400 V 50/60 Hz
Total power:
◦ 12 kW
Safeguard:
◦ C25A
Working air:
◦ 2500 Nl/min 8 bar
Water:
◦ 2.5 m³ 8 bar drain diameter 200
Noise level:
◦ 68 dB(A)
Operating temperature:
◦ +4 °C – +40 °C
Relative humidity:
◦ ≤ 80 %

Options Additional

  • Expansion with additional output tables:
    Adapting sorting to more categories.
  • Possibility of using many types of packing tables:
    Our offer includes as many as 6 different types of tables
  • Possibility of equipping the line with a number of additional devices:
    • water cooling system – possibility of installing a cooling unit to maintain the appropriate water temperature in the unloading tank (usually 8–12°C).
    • central conveyor for receiving class II products – convenient removal of class II products from the packing tables (if an economical packing table is selected)
    • cardboard drops, packaging slide – feeding cardboard boxes from the mezzanine to the packing tables and collecting full packages
  • Possibility of expanding the line:
    e.g. an automatic palletizing line enabling a full range of activities related to preparing the product for sale.
  • Weighing system
    Possibility of installing electronic scales for full packages.

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Main Features and Functions

  • Gentle unloading and preparation of fruit
  • Precision electronic sorting
  • Ergonomic packaging and advanced controls
  • Durability, efficiency and flexibility
  • Security

Line 2LK-8 starts the process from water unloading system, which allows for safe acceptance of fruit without the risk of bruising, cracking or loss of shine.
Transport in water stabilizes the movement of the cherries and protects their surface from micro-damage, three-stage filtration guarantees clean circulation and a high level of hygiene.
Special Z-type carrier conveyor„ gently lifts the fruit from the water bath to a higher level of the line, preserving its shape and structure.
Then the fruits go to inspection stations, where operators can pre-select – removing fruit that is damaged, too small or has a tail – ensuring better sorting results.

The heart of the line is 2LK-8 sorting machine, using advanced vision system with high-resolution cameras.
Each fruit is individually analyzed for size, color and surface quality, and the software classifies it according to the established parameters.
Thanks double-track construction, the line reaches a capacity of up to 1 ton of fruit per hour, exceeding industry standards while maintaining complete gentleness of the process.

At the end of the process the fruit goes to SPD-7 type packing tables with seven workstations.
Integrated buttons START/STOP and emergency stop ensure safety, and the ergonomic design facilitates quick packing into boxes or containers.
The entire line is controlled from central PLC panel, which allows speed regulation, parameter monitoring and work cycle management in real time.
The system guarantees reliability, intuitive operation and safe use.

The line structure is made of materials resistant to moisture, corrosion and intensive use, and the elements are protected against corrosion.
Thanks to the precise synchronization of the conveyors and the low installed power (12 kW), the system is characterized by high performance with minimal energy consumption.
The project envisages easy service access, spray nozzles and dirt removal system, which allows quick cleaning without disassembly.
The modular design allows for expansion and personalization – with additional tables, checkweighers or water cooling – so that the line can grow with the development of the farm or plant.

Emergency stop system:
The machine is equipped with safety switches that stop operation in the event of a hazard or when protective covers are opened.
Low noise level:
ensures comfortable work for the operator, even during prolonged use.
Compliance with CE standards:
The device meets the requirements of European directives regarding machinery and electromagnetic compatibility.

A row of fruits displayed side by side: apple, tomato, red apple, orange, lemon, orange, and kiwi on a white background.

Competitive advantages Advantages

Work efficiency

Sorting of up to 3 tons of products per hour (with 6 tracks).

Gentle water transport

The water unloading system protects the cherries against bruises and cracks, ensuring their complete safety from the very first stage of the process.

Precise electronic product sorting:

An advanced vision camera system analyzes each fruit, assessing its color, size, and external quality.

High performance and energy efficiency

The cherry line combines high throughput with low energy consumption.
The total power of 12 kW and optimized conveyor operation guarantee economical operation with maximum efficiency and sorting precision.

Possibility of expansion and personalization

Thanks to its modular design, the line can be easily expanded with additional packaging tables, sorting outputs, checkweighers or a refrigeration unit.
This is a flexible solution that grows with the user's needs and allows the line to be tailored to individual production requirements.

Take advantage of the opportunities offered by modern sorting machines to optimize your production processes. Schedule a meeting and see how innovative technologies can transform your farm, improving its efficiency and production quality. Using an electronic product sorting system and modern production lines is key to success in the dynamically developing food market.

Interested in collaborating?

Contact us, and we will provide detailed information on every product in our range. We offer competitive prices and the possibility of longer-term cooperation.

Our offering is constantly evolving, so the information presented may differ from the current version of the device. Please ask about the current offer.

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The above consent is voluntary. Granting consent will allow the company: STALKO Spółka z ograniczoną odpowiedzialnością sp.k. to send you information about current offers and promotions regarding its products. Your consent can be withdrawn at any time by sending an email to: iod@stalko.com. If you do not grant consent, we will contact you to discuss the terms of any potential future cooperation. Read more GDPR