GENERAL INFORMATION
Page
3
02/07
Introduction
The Air Seeder uses the flow of air to
convey seed and fertilizer to each tine. This
type of material transfer is known as
pneumatic conveyance (refer Fig. G1).
The material being sown must be
metered accurately into the air stream to
deliver a constant application rate.
How the Air Seeder Operates
Seed and fertilizer are transferred from
pressurized bins to multiple conveying
tubes
via
separate
meterboxes.
A
meterwheel
arrangement
inside
the
meterbox is rotated by either a ground
wheel (ground drive seeder) or hydraulic
motor
(VRT
equipped
Seeder).
As the ground wheel rotates, so too does
the metering system. The metering system
can be disengaged or engaged at the tractor
cab.
A blower is located upstream of the
meterbox on the Air Seeder. It is used to
produce the airflow required to convey the
material.
The seed and fertilizer is conveyed
towards the implement. It is then evenly
divided into smaller amounts as it passes
through the primary splitters.
The material then travels along the
secondary hoses to the secondary manifold
heads. It is distributed to the tertiary hoses
and transferred to the sowing boots mounted
on the tines.
Fig. G1 Two bin model shown.
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