Mounted sprayer tractor size

[clbarclay]

What are the max filled weights of the front and back?

2.3 Tonnes of water on the back and 1.6 tonnes of water on the front.

What does a sprayer weigh empty 2 tonnes or am I wildly off the mark?

Front tank empty won't the the length of 1 Tonne surely?

So say 5 Tonnes on the back and 3 tonnes on the front.

A decent 100HP tractor should easily handle that, I would be more worried about the depth of the tracks you would leave if it was a bit wet under tyre?

Depends what you mean by handle that. Very few tractors have a sufficinet payload so rated to actually carry that. A Fendt 724 is one of the few i've found with sufficient payload. I checked amazone for approximate sprayer weights and off the top of my head theirs is 1550kg rear and 230 kg unladen though wider boom width probably increases that.

I assume that rated payload is at top speed on a road? I wouldn't be surprised if some sprayer manuals like some seed drill manauals state that they should only be driven along the road unladen.

What they can actual manage in practice is another matter.

 

[KB6930]

The work I do it's not uncommon for unhooking and changing 6 times in a day.

Yeah same here it's no hardship really once you get sussed out exactly what you need to do to make it as easy as possible

 

[Chae1]

I don't take ours on and off much. Pretty limited what you can use a tractor on rowcrops for?

Don't always have to use both tanks? Just put rear tank and front weight on if not doing a lot.

It's not about hp, more chassis size in my opinion. I'd want lwb t7 or 6175 up JD personally.

Saying that @Daniel gets on fine with a 4 cylinder Case.

 

[Daniel]

I don't take ours on and off much. Pretty limited what you can use a tractor on rowcrops for?

Don't always have to use both tanks? Just put rear tank and front weight on if not doing a lot.

It's not about hp, more chassis size in my opinion. I'd want lwb t7 or 6175 up JD personally.

Saying that @Daniel gets on fine with a 4 cylinder Case.

Got it on the posh tractor today as the Maxxum is on the beet drill. The 1200kg front box is only just enough when full even on a 6cyl. I should make up some brackets for the front tank pipe work, but then I might want it on this tractor all the time…

 

[Chae1]

Got it on the posh tractor today as the Maxxum is on the beet drill. The 1200kg front box is only just enough when full even on a 6cyl. I should make up some brackets for the front tank pipe work, but then I might want it on this tractor all the time…
View attachment 1106814

I'd like a fendt to replace my fastrac!

I find the front tank makes them much better balanced rig.

I can almost lift the back wheels of the fastrac off the ground with 1900l of liquid fert in front tank. nothing in back.

 

[clbarclay]

Do most mounted sprayers with front tanks fill and use from both tanks evenly to remain balanced?

 

[Daniel]

I'd like a fendt to replace my fastrac!

I find the front tank makes them much better balanced rig.

I can almost lift the back wheels of the fastrac off the ground with 1900l of liquid fert in front tank. nothing in back.

Yeah the front tank pushes the weight further forward than the weight block does which helps a lot.

I’ve never driven a Fastrac but like the look of the 4220s.

Obviously everyone thinks you’re a knob when you drive a Fendt, but this one is sooo nice. The bill to get from another make into a Fendt takes some digesting though.

 

[Two Tone]

If you are going mounted with 2,300 Kgs of liquid on the linkage, you really must go for Aluminium booms. Yes a tractor can lift steel ones, but the inertia created as you turn into and out of the the tramlines each end will cause excessive stress on all sorts of components, causing either something to go bang or turning it on its side.

With possible £thousands in the tank, I’d be pretty pee'd off it it turned over and feck knows what the EA would do to you!

 

[Chae1]

Yeah the front tank pushes the weight further forward than the weight block does which helps a lot.

I’ve never driven a Fastrac but like the look of the 4220s.

Obviously everyone thinks you’re a knob when you drive a Fendt, but this one is sooo nice. The bill to get from another make into a Fendt takes some digesting though.

Fastracs just so long. With front and back mounted. The tank should be up behind cab.

But then you can just have a fastrac.

 

[ollie989898]

Got it on the posh tractor today as the Maxxum is on the beet drill. The 1200kg front box is only just enough when full even on a 6cyl. I should make up some brackets for the front tank pipe work, but then I might want it on this tractor all the time…
View attachment 1106814

Mirror mirror on the wall...

How long will it be...till a 516 joins the line up n'all?

 

[Farmer Roy]

Front mounted tanks are VERY common here on FWA tractors, for a variety of products. They generally just get left on all year . . .
If not being used to apply liquid product, they are an easy to adjust weight block out the front
No big deal

same tyres all year round as well . . .

 

[Farmer Roy]

Back in the ‘90s, I personally know of 2 people ( 1 a neighbour, the other someone I did a bit of occasional work for ) who both thought they’d reinvent the wheel & built themselves 36 metre 3ptl booms to hang off the back of Case 9260 tractors ( same as this one of mine in the pic below ). 3 or 4000 l tank on rear & 2 x 1000 l saddle tanks on the front.
But then big self propelled sprayers & mounted booms on Fastracs became available ( much faster & suspension ) so they were fairly short lived.
Besides, everyone now uses water trucks / mixing vats, to cart water to the spray rig & fill in the paddock

 

[Farmer Roy]

Anyway, getting back to the OP

personally, for the weights you are talking, I wouldn’t go anything less than a 200hp FWA

yeah sure, a smaller tractor would probably handle it, but I’d rather have a bigger safety margin than that

 

[Chae1]

When I worked in Australia, had a 1200l front tank and 4000l trailed on back. On a MX240 Magnum.

 

[Farmer Roy]

When I worked in Australia, had a 1200l front tank and 4000l trailed on back. On a MX240 Magnum.

pretty common set up.

you will still see a lot of that size tractor with front mounted tank & either a linkage or tailed boom & tank

 

[Farmer Roy]

Front tank just stays on. Too useful to take it off

 

[Chae1]

Front tank just stays on. Too useful to take it off

Imagine the 9260 would be a bit rough spraying at speed!

We were often spraying at over 20k.

Limiting factor was tractor hydraulics. Sprayer pump was hydraulic drive.

 

[Farmer Roy]

Imagine the 9260 would be a bit rough spraying at speed!

We were often spraying at over 20k.

Limiting factor was tractor hydraulics. Sprayer pump was hydraulic drive.

Top speed isn’t that fast anyway, but yes, would be very rough. The booms were very heavy & run on wheels to carry weigh / control height. No fancy boom suspension back then

yes, it was a fool of an idea really. But no tractors had suspension back then & there weren’t really many SP spray rigs around either. They were just making up for slow speed with big booms & big tanks.
JCBs & SP rigs killed that idea . . .

My contractor now runs a SP 36 m boom at over 20 km / hr easily & has a water truck to keep him going in the paddock. Much better

 

[Chae1]

I did 250 acres to a fill at 40l/ha. Be long day on water truck.

 

[Spencer]

I did 250 acres to a fill at 40l/ha. Be long day on water truck.

Snap. I was on a Spra Coup, great fun