Bourgault worked with local growers to build the ultimate planting bar with the ability to adjust seed depth and packing pressure as required
With the aim to always having the latest innovations in quality planting equipment led Bourgault Australia to launch its ultimate seeding implement, the 4420DKD™, and over the past season has shown great results.
Launched in 2024, the 4420DKD™ (Deep Knife Drill™) is a testament to Bourgault’s commitment to helping growers achieve optimal seeding application with purpose-built solutions.
The 4420DKD™ combines a robust, easy-to-adjust deep knife™ opener with a durable and versatile frame that can be paired with any Bourgault Air Cart and accommodate on-board liquid tanks.
This groundbreaking implement sets a high standard for precision seeding with an innovative design that allows growers to penetrate soil to greater depths, enabling improved fertiliser separation and the most precise seed placement.
Third-generation WA farmer and Roma Farming Company Director Frank Varone assisted with in-paddock testing in 2023. Frank was so impressed with the 4420DKD™’s performance that he purchased the test machine for the 2024 planting season.
“With the 4420, it almost doesn’t matter what the tines are doing,” Frank explained. “The seed placement is always precise, and the germination is very even.
“Because it has good flotation, it’s very even and accurate across the whole bar,” Frank added.
Bourgault Australia General Manager Craig Christensen says there has been a lot of work engineering and tailoring the 4420DKD™ to meet the requirements of local farms.
“The development of this implement was a fantastic process of collaboration with local growers to ensure we delivered exactly what they need,” Craig explained.
Built with novel dual-tine DK™ (Deep Knife) openers, the 4420DKD™ can penetrate the soil to depths of 120 to 165mm, enabling growers to facilitate improved fertiliser separation and precise seed placement.
Enhanced control with the on-the-go adjustable hydraulic breakout on the openers offers a force range of 68kg to 450kg for increased adaptability to soil conditions with consistent depths.
The adaptability of the 4420DKD™ allows it to be optionally paired with the Bourgault TruTrac Coulter™ system to optimise soil throw and residue management in high-stubble paddocks.
Wrapping up the opener assembly, the packing wheels are available in V, U, and VU profiles, all using Bourgault’s semi-pneumatic design to eliminate punctures.
Boasting an all-new frame design, growers can be assured they have the quality-of-life inclusions expected of Bourgault equipment, such as a floating hitch as standard and a steerable front axle.
“With 12m and 18m models available, the 4420DKD™ gives growers unparalleled crop management, while both models can conveniently fold to a narrow 5.5m, enabling easy transportation,” Craig adds.
The 4420DKD™ caters to a wide range of field requirements with row spacings of 250 to 300mm.
The heavy-duty frame option makes the 4420DKD™ Streamliner™ compatible, allowing a pair of liquid tanks with a total capacity of 5400 litres to be fitted.
When fitted with liquid tanks, a hydraulic lift assist kit is available, ensuring you have the lift capacity to raise the bar on headlands.
Any worries about soil compaction from the weight can be put to rest with Hi-Flotation™ tyres provided as standard, minimising compaction and further promoting healthy crop growth.
The Bourgault 4420DKD™’s function-rich design makes precision seed and fertiliser placement more efficient while causing minimal soil disturbance.
There’s still some time to order your 4420DKD™ and have it ready for seeding. “We have high stock levels, and with two assembly plants, we can spare growers lengthy wait times by delivering the best local service,” Craig outlines further.
“By adopting the Bourgault 4420DK™ seed bar, we’re expecting growers to achieve great results.”
For more information about the Bourgault 4420DK™ seed bar and its unique functions developed for local conditions, chat with your Bourgault Australia representative on tel: +618 9399 9700.
See more on this link the full model specifications or scan the QR code here for instant access to your nearest Bourgault seeding specialist.
Bourgault 4420DKD Deep Knife Drill specs
