An integral partner of the coffee industry
GroTech Color Sorting Machine(sometimes called digital sorting) is
the intelligent and automatic process of sorting solid material using cameras and ejectors.
Depending on the sensors used and software-driven intelligence of
the image processing system,color sorting machine can recognize
objects' color and size.The sorter compares objects to user-defined
accept/reject criteria to identify and remove defective products
and foreign material(FM) from the production line,or to separate
product of different grades or types of material.
CCD Color Sorter Machine are widely used in the food industry
globally,with the highest adoption in processing harvested foods
vegetable.The technology is also used in waste recycling and
mineral industry.Compared to manual sorting,which is subjective and
inconsistent,optical sorting helps improve product quality
,maximize throughput and increase yields while reducing labor
Grotech Optical Sorter machine is ideal for grain processors who
sort different varieties of grains and at different processing
stages.The sorting range is suitable for processors who demand the highest
The Color Sorting System
- In general,optical sorters feature four major components:the feed
system,the optical system,image processing software and the
separation system.The objective of the feed system is to spread
product into a uniform monolayer so products are presented to the
optical system without clumps,at a constant velocity.The optical
system includes lights and sensors housed above and/or below the
flow of the objects being inspected.The image processing system
compares objects to user-defined accept/reject thresholds to
classify objects and actuate the separation system.
Features of Grotech Color Sorting Machine
1,Advanced image acquisition system
Use the high resolution CCD camera with high quality industrial
lens to achieve clear and accurate image acquisition .The camera
could capture the micro defects of material instantly.
Use high signal-to-noise ratio sensor and anti-interference circuit
system,which could highly improve stability and reliability.
3,Intelligent image processing algorithm
Color sorting algorithms of gray level,color difference and HSV are
perfectly combined with shape sorting algorithms of size,circular
degree,texture etc,and successfully solved a series of high
difficulty color sorting problems,and dramatically enhance the
4,Unique chutes processing technology
The special anodizing and hardening technology can greatly improve
the channel smoothness and ware resistance to guarantee high
5,High quality solenoid valve(ejector)
Equipped with high quality solenoid valve.The valve has longer
lifespan ,high frequency ,and low air consumption.The working
frequency is 1000 times per second,which guarantees the accurate
and perfect ejecting.
For the different sizes and characteristics of material particle,
Growking optical sorters use the solenoid valve of different sizes.
6,High efficiency and reliable light source
Advanced LED lighting technology with advantages of super high
intensity,long lifetime and perfect performance.
7,Simple operation, easy to learn and use
Simple optical system design, precise automatic correction system,
combined with the well-designed human-machine interface to simplify
the complexity of machine commissioning and use.Our machine is
intelligent so it can learn by itself.Our machine can take a photo
of the material and then the machine could set the paramaters by
Coffee Bean Colour Sorter Machine Specification
Grotech Coffee Bean Colour Sorter Machine Manufacturer delivering the highest standards in product quality
and safety .We provide optical sorting solution for coffee beans
processors who request high standards in products quality and
safety.With a focus on precision sorting and consistent production
capacity.Grotech Coffee Beans CCD Color Sorter Machine Manufacturer
meet requirements of small ,medium and large processors who sort a
variety of coffee beans,green Robusta and Arabica,roasted,semi or
fully washed,and sun dried.
Its commitment to substantial investment in R&D ensures that
its advanced optical sorting technology produces excellent results
in removing the most challenging of defects.We can sort in Arabica
coffee,Robusta coffee and roasted coffee all type of contaminants
including:black,brown,reddish,amber beans,immature beans,insect
Optical sorting solutions for
1,Green coffee(colour sorting):Optical sorting can reject colour
defects such as discoloured beans,immature and insect damaged beans
in ordinary,specialty and sundried green coffee application.
2,Green coffee(FM sorting):Optical sorting can remove foreign
material which has been missed or not targeted by the mechanical
cleaning process such as sticks,stones,glass,shell and others
caused by fermentation process such as sour beans.
Arabica and Robusta coffee defects
3,Roasted coffee(colour sorting):Optical sorting can separate
under-roasted(lighter,white and immature) and over-roasted beans
for a better taste and quality.
4,Roasted coffee(FM sorting):it can remove FM(foreign material)
such as sticks,stones and glass from roasted coffee which can not
only compromise the appearance of the final product but can also
damage mechanical equipment such as grinders.
Robusta coffee defects
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