2019 Weaving GD6001T

2019 Weaving GD6001T

6m no-till

discs drill

36 discs,

5000l hopper

2842ha

RDS Artemis seeding unit.

800 / 45R26.5

HOW THE COULTER WORKS

The principal behind the GD coulter design is based on a double disc arrangement, mounted on a 22° angle off the vertical which is able to pivot around a central kingpin mounted within the coulter body. The larger leading outer disc cuts an opening slice in the soil whilst the smaller inner disc is in effect undermining the ‘upper’ side forming an opening for the seed to be placed precisely. This process removes side wall compression from the opening slot, making slot closing more effective and consistent. The lifted wall of the soil is firmed down onto the seed by a single press wheel ensuring good seed to soil contact. The press wheel also acts as a depth regulator for the disc coulters. Drilling depth is adjusted by moving a single pin through a bank of holes with a depth range of 16-144mm in 16mm increments. Coulters are individually pressurised by a hydraulic system providing up to 200kg of downwards pressure helping to maintain consistent contact with the ground and follow contours and undulations. This refined design aided by an inter-row clearance of 1 metre has resulted in a coulter that is able to work in extremely trashy conditions and cover crops minimising the opportunity for hair-pinning to arise.