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New Pro-D ready for 2015

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Ausplow marketing manager Chris Blight (left) shows how to remove a DBS blade with an extraction tool which also is used to lock the whole assembly in place. With him is Ausplow engineering manager Carl Vance who played a pivotal role in developing the Pro-D tillage tool system.

Ausplow marketing manager Chris Blight (left) shows how to remove a DBS blade with an extraction tool which also is used to lock the whole assembly in place. With him is Ausplow engineering manager Carl Vance who played a pivotal role in developing the Pro-D tillage tool system.

Positive feedback about our new patented addition to our DBS Auseeder precision seeding bar, the Pro-D system, has seen a marked increase in interest for retro-fits for the 2015 season.

The Pro-D system is essentially is a new bolt-less tool assembly comprising an adjustable DBS blade and shrouded fertiliser boot and new closing tool.

DBS owners who have used the Pro-D system - in WA and the Eastern States – say the main benefits are easy depth adjustment of the digging blade and the elimination of blockages in the fertiliser tube because of the protective housing.

According to Ausplow owner John Ryan, the Pro-D system was born out of owner feedback for a simpler and more robust tool assembly.

“We don’t get too many complaints because the DBS bar is virtually bullet-proof but we never stop listening to owners,” he said. “On most farms you’ll find areas, particularly with rocks and rocky outcrops, where any bar gets a severe testing.

“It can compromise equipment either breaking it or wearing it and our owner feedback pointed to the need for a longer-wearing, ground-engaging tool.”

Ausplow marketing manager Chris Blight, who recently returned from visiting DBS owners in the Eastern States, said the reaction of those who had used the Pro-D was very positive.

“The easy adjustment of the blade depth to suit varying soil conditions and the ability to do it quickly in minutes is a big winner according to our owners,” Chris said.

“You effectively replace nine available blades sizes with two Pro-D blades because of the variable depth adjustments possible.

“You don’t need, for example, to have a 13cm (5in), 15cm (6in) blade, and a 17.5cm (7in) blade and a 22.5cm (9in) blade to suit different soil conditions.

“With the Pro-D it’s all in one blade to adjust to varying soil conditions.

 “Our owners also found the fertiliser shield was the perfect answer to reducing blockages and they reported a more consistent profiling of the deep banded fertiliser. This is due to the fertiliser boot working in the soil and directly behind the knife blade.

“There also are less issues with liquids because of the improved protection of the liquid tube.

“And one farmer planting faba beans this season told me he was able to place seed at four inches (10cm) with a rate of 110kg/ha with no blocks.”

Mr Blight said feedback also pointed to the Pro-D blade adapter shedding straw better.

“It’s like a built-in trash guard and keeps stubble falling forward and not hanging on around the shank,” Chris said.

According to the company’s engineering manager Carl Vance, more material has been added to the point of highest wear, thickening the base of the DBS blade and widening the bursting tungsten tile.

“We have also designed three grooves on either side of the blade to capture soil,” he said.

“Effectively in operation, this means you have soil passing over soil to reduce wear on the sides of the blade.”

With improved wearing characteristics achieved the team then decided to make it easier to change and with an adjustable blade and closing tool depth.

“We had about 20 or 30 ideas and we investigated all of them,” Carl said. “We eventually settled on a blade adapter with a U-pin design, something which came out of the evolutionary thought process.

“Because it was a bolt-less design, the challenge then was to make it strong to combat the working stresses.”

Two U-pins were designed, one for the blade adapter and one for the closing tool and one cam-shaped extraction tool which is also found on the opposite end of every Pro-D blade.

The next step was to beef up the fertiliser boot.

It comprises a polyurethane boot protected by a cast steel shield allowing the boot to follow deep working below the DBS blade without damage up to a depth of about 10cm (4in).

This increases the precision of deep banding.

The cast steel shield also protects a liquid hose attached to the boot for the placement of required liquid nutrients.

Improvements to the closing tool include a replacement tungsten-faced tip on the stem.

“The geometry of the closing tool hasn’t changed but the tip will give longer wearing life,” Carl said. “It is equipped with a similar U-pin to the DBS blade adapter for depth adjustment and you can use the same extraction tool.”

 

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Publish Date: 
Thursday, January 22, 2015