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Guangxi Guijie Agricultural Development Co. packs and sells fruit from 12 standardized citrus bases on more than 1,300 hectares (3,300 acres) of land in the Guangxi region of south-west China. To upgrade the automation of its packing facilities, Guijie recently installed a state-of the- art 12-lane sorting and packing line which was manufactured and installed by TOMRA Food. This is one of the biggest integrated sorting solutions in China, with the capacity to handle three million pieces of citrus fruit per day during the peak season.
This investment underlines how far Guijie has progressed since it’s founder, Liang Jieyan, returned in 2006 at the age of 44 to his home town in Tanluo with the ambition of starting his own business. At that time, the land and mountains surrounding Tanluo were mostly barren – but Liang led local people into the fruit-growing industry and introduced new citrus varieties such as Orah mandarins, tangerines, and Murcotts (honey tangerines).
The combination of Guijie’s scientific cultivation methods and the favorable climatic conditions in Guangxi, where there is abundant sunshine and rainfall, have resulted in fruits of high quality. Guijie’s TIAN WAN WAN-branded Orah has gained great popularity among consumers for its sweet taste, juicy flesh, and thin peel.
“Climatic conditions and
management vary from
one orchard to another,
which means the citrus
fruits differ in quality
and appearance, but
customers nowadays
ask for higher-quality
products. That’s why
we’ve had to raise the
bar in sorting, to achieve
uniform standards. Now
our customers can
enjoy citrus fruit with an
identical flavour and very
similar appearance no
matter which box they
come from. This has
been critical in our highend
branding.”
- Liang Chun,
General Manager at Guijie
TOMRA Food has provided Guijie’s
packhouse with complete, integrated postharvest-
to-pack solutions, taking care of
everything from tipping the fruit onto the
line to packing at the other end. These
solutions are modular and scalable to
businesses of all sizes.
Two sets of infeed treatment systems,
handling functions such as soaking, presort,
brush-washing, drying, pooling, and
conveying, can be controlled centrally
or operated separately. It is possible to
troubleshoot without interrupting the entire
production line, minimizing downtime.
And automatic control of the entire
process of depalletizing, tipping, moving
crates, washing empty crates, and nesting
and recycling empty crates has reduced
the number of round-trips by forklift
trucks by 60%.
The 12-lane line incorporates Spectrim, the
most powerful imaging platform available
for external defect detection in fresh
produce, and Inspectra², the industry’s
most advanced non-invasive internal
quality inspection system. Spectrim
captures up to 500 high-resolution color
photos and infrared photos of the fruit
every tenth-of-a-second, accurately
identifying defects as small as 0.16 square
millimeters. Inspectra² applies nearinfrared
(NIR) technology to analyse the
light spectra transmitted through every
piece of fruit, checking characteristics
such as acidity, Brix, and granulation. Both
Spectrim and Inspectra² have AI defect
detection and self-learning capabilities.
The unrivalled effectiveness of these
two solutions is the main reason Guijie
decided to install them.
“TOMRA sorters are
equipped with a highly
accurate AI smart imaging
and identification system
that captures appearance
defects such as scarring,
decay, puff, and creases,
which other systems
fail to identify. They also
perform internal quality
control with precision and
high efficiency. These
sorting solutions have
greatly built-up our core
competitiveness through
efficiency improvements,
labor cost reduction,
accurate sorting, and
efficient packaging.”
- Liang Chun,
General Manager at Guijie