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Old 01-05-2009, 09:39 PM   #11 (permalink)
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Default Re: pull sprayer?

I'm actually thinking of going away from a high-clearance. What do you fellas think of the hardi commander twin boom system? Was talking to company guy today and he said they build them up to 118 in a suspended air boom, 132 in a standard, they look good, but haven't seen any in our area. Costly no doubt, but couldn't imagine what an SP with 1850 gal tank, 120' air boom would cost...ouch!
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Old 01-05-2009, 10:07 PM   #12 (permalink)
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Default Re: pull sprayer?

know of a guy that has a high clearance pull type, and he put narrow tires on his John Deere tractor that has that new suspension... great idea in my mind, cuz he can use the tractor for other jobs when not spraying.
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Old 01-05-2009, 10:09 PM   #13 (permalink)
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Default Re: pull sprayer?

Are the hardi's the same idea as the spray-airs, or? Anybody have any experience with either
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Old 01-05-2009, 10:18 PM   #14 (permalink)
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Default Re: pull sprayer?

Hardi is different. It uses normal nozzles, with an air curtain. Air curtain speed can be adjusted, as well as the angle of the blast, I suspect they have a similar effect, though they would both probably claim otherwise. Brian Storozynsky from alberta Ag? has done work on air assist sprayers and other newer technologies, but has been unable to see a benefit outside of fungicides and dessicants I believe. I wonder if you might get a better job spraying for fusarium if you could angle the air blast in such a way that your heads are waving back and forth, I suppose a good wind during application would have the same effect!
Local custom operator claims he has to cut his herbicide rates with his spray-air boom otherwise he hurts the crop, have heard others say this. Would be nice to spray liberty at 5gal and still get a good job.
Hardi looks to be better built and offers some enormous tank options, up to 2400gal, unbelievable.
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Old 01-06-2009, 01:02 AM   #15 (permalink)
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Default Re: pull sprayer?

That sounds good, congrats.
Am I going to be the last one in the area to go high clearance?

Don

Just a though Don. Macdon or someone used to make a sprayer to mount on the 9000 series swather tractors. Do you think something like that could be done on the new M-150/200 tractors. I was thinking that with the turn about cab, you could have the booms out back, saddle tanks along the engine.

Since they are all hydraulic now, running a hydraulic pump wouldn't be a problem. The real and table lift I'm assuming could be used to raise and lower boom, They offer GPS. Running in transport you could really go.

Just a thought. I mentioned this to one of the guys at the farm show, and along with the snow blower that they used to have for these machines and I really thought that he thought i was smoking crack. I think it could work, or is there some design flaw in the M series tractor that doesn't allow for this operation?
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Old 01-06-2009, 12:30 PM   #16 (permalink)
bud
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Default Re: pull sprayer?

The pull type high clearance sprayers have their place. They will do everything a high clearance sp will except preharvest work (the pull type is lower and will shell out more grain). However, the extra cost will hire the preharvest work custom done. Harvest is when I am usually so busy that it is hard to find time to spray anyway.

A pull type with booms and wheels that have a windscreen will spray on days that a high clearance sp can't run. Most sp units can't get the booms closer than 3' and often 4' from the ground in rolly land. A wheeled version with windscreens and coarse airinduction nozzles could spray in a 35 mph wind and still do a great job.

The pull type sprayers with the suspended booms and windscreens can spray closer to the ground than a sp unit because they go slower. You could spray on days that a sp can't go, but not in as much wind as a true wheeled boom.

Most sp units are 750-800 gallons with 90-100' booms. You can buy 1500-2500 gallon pull types with 110-130' booms. With the bigger water tank on the pull type you will still do a lot of acres per day.

I own a spraycoupe 80' boom and spray at 16-20 mph. Last year I also bought a sprayair pull type suspended boom. Pulling it in crop with the quadtrac you could go through standing water and easily spray from 12-16 mph. It rides so smooth on rough no till ground! At the end of the day the spraycoupe and the sprayair could spray the same amount in larger fields. In smaller fields the coupe shines because it can turn so much faster.

One you move to a suspended boom sprayer you will realize that the booms don't need to be any closer than 4 or 5' from the ground unless it is windy. I did not feel like I needed a auto boom height for either sprayer, unless I was trying to hug the ground.

If you have lots of steep hills that you have to spray sideways on then you need a pull type with wheels on the booms. A suspended boom sprayer would not be very stable with the boom whipping up and down and rocking the cart. If you can go up and down, or at an angle on the slope a suspended boom will work excellent.

I spray about 15-20000 acres per year and if I was to do it all over again I would not buy a sp sprayer. I would get a pull type suspended boom with a large tank and then just hire a plane or high clearance sprayer to do the preharvest work.
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Old 01-06-2009, 11:11 PM   #17 (permalink)
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Default Re: pull sprayer?

We have a Spray-Air 2282, suspended boom sprayer.

It works extremely well. We just started with it this year; first burnoff was .3L/acre of Factor 540 roundup, in 5 gal of water. By the time we got to doing canola, I was down to .25L/acre, in 3 gallons/acre of water.

We sprayed wheat with Frontline+Horizon+Tilt, at 4GPM and the guys from the elevator were amazed at how well the chemicals worked, especially Tilt which is supposed to be used with 15gpa of water. In flax, we used Select and did 80acres with a single case, which should treat 40 - 60. In Oats, one case of Frontline is for 40 acres, we sprayed 66 with it, and had complete control. You have to drive slower (5 - 8mph), but you can still cover a LOT of acres in a day.


The nozzles actually use wind from the fan, powered by the pto to turn a steady stream of product into a 8" wide fan. The nice thing is the flexibility; you can make big or small droplets depending on wind velocity (adjustable from cab), and also shut the fan off and use the sprayer as a dribble bar.

-Christian
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Old 01-07-2009, 10:07 PM   #18 (permalink)
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Default Re: pull sprayer?

Ive heard that the small droplets will drift easily, which makes sense, but I figured that since the Spray-Air creates its own "wind", its possible to spray in windier conditions then a normal boom sprayer. All that down draft would cancel out wind gusts.
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Old 01-08-2009, 01:35 PM   #19 (permalink)
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Default Re: pull sprayer?

Agreed. Wind is your enemy.

If I'm spraying where it may hurt something, I'll go down to 2.5 - 3gal /acre, and run at only 45% of wind output (Can't remember what the Mag. says).

It won't drift then, but you have to be careful not to drive too fast, as larger amounts of solutions will make the spray pattern narrow down, and you'll have stripes in your field between the nozzles (been there, done that).

Of course, you get the best control when running so that the droplets turn into a very fine fog, it pretty much covers the entire leaf from both sides.


-Christian
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Old 01-08-2009, 09:24 PM   #20 (permalink)
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Default Re: pull sprayer?

http://northamerica.hardi-commander.com/....IN%20FORCE.aspx
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