CLAAS LEXIONS
ve models in the new narrow body
Lexion 7000 range.
Upgrades for a new generation
e Claas Lexion has enjoyed huge
success over the years with its APS
threshing system and the legacy
continues with the new APS
Syn ow, which is the key to
increasing harvesting capacity.
Other new features on the
generation two Lexions include
more powerful engines, bigger grain
38 iVTInternational.com September 2019
tanks, larger concaves, greater
separation control, a new drive
system and faster unloading.
e operator also bene ts from
a larger cab, with Cebis touchscreen,
full Cemos Automatic and an allnew
yield-monitoring system.
Highlighting the upgrades on the
new generation Lexions, Hayward
says: “ ere are big changes are in
the threshing and separation system.
We have a new threshing system
called the APS Syn ow with a 26%
larger threshing drum and 57%
larger impeller and larger concaves.”
ese new design characteristics
allows the drum speed to be run at
550rpm compared to 750rpm.
Drum speed is in nitely variable
using Cebis from 330rpm to
930rpm, compared to a range of
450rpm to 1050rpm currently, and
is fully synchronised with the
accelerator and feed drums.
“Our customers have had
a massive in uence on the design of
the new machine. It has been built to
meet their needs,” says Hayward. “ e
most important thing to compare
between machines is threshing and
separation areas. is is what gets the
grain out of and into the tank. It’s
also the control of the separation area
that is really important to consider.”
Going with the Synfl ow
e new APS Syn ow primary
threshing system is designed to
thresh out 70% of grain, leaving 30%
to be removed by the Roto Plus
secondary separation system.
As a result of this increase in
drum size and the new concave
790hp
The power provided by
the MAN engine in the
fl agship Lexion 8900
(590kW)
“THE BIGGEST THING WHEN COMPARING MACHINES,
AND THE MOST IMPORTANT THING TO COMPARE, IS
THRESHING AND SEPARATION AREAS. THIS IS WHAT
GETS THE GRAIN OUT OF AND INTO THE TANK”
Adam Hayward, product manager, Claas
ABOVE: The APS Synfl ow
Hybrid threshing unit
continues the successful
Lexion concept of a
combination of a tangential
threshing unit with a preaccelerator
drum and axial
secondary separation
/iVTInternational.com
