The AGPRO double disc openers are located on a parallelogram system that
provides constant down pressure, and they are independent of the
weight of your seed drill. What this means is that no matter what
the quantity of seed and fertilizer within the drill, the sowing
depth remains constant, and in most applications, there is no need
for a ground opening device to run before the double disc opener.
The parallelograms operate independent of each other, so if one row
hits an obstruction, only that particular unit will lift out of the
ground, while all other units remain in the ground and the machine
will stay steady. AGPRO Disc Openers will cut through wheat
stubble as high as 8 tonne/Ha. They can also cope with small branches
and twigs. Another advantage of the double disc opener over tine
seeders is that seeding can be conducted at speeds of between 10 – 16
kilometer’s per hour, and also requiring less horsepower to
operate.
The spacing of each unit can be as small as six inches (150mm). An
adjustable spring setting allows down force of 100, 200 or 300 lb
to be set, depending on ground conditions.
Diagram:
Press wheels are used by the AGPRO double disc opener. The
press wheel trails behind the disc opener controlling sowing depth
and covers the seed and fertilizer with soil, eliminating the need
for harrows. A flexible seed firmer gently positions the seed at
the bottom of the opening while preventing seed bounce.
Other features of the double disc opener include a mud scraper to
prevent build up of dirt between the discs and to prevent blockage
of the seed tubes, and a press wheel scraper situated behind the
press wheel and an easy to use press wheel height adjuster.