How much power does a hydraulic drill fan use?

[snarling bee]

I know that the answer could be how long is a piece of string, but lets say a typical drill fan on a 6m drill.

 

[Lincs Lass]

Dont most modern tractors have this power beyond system to boost the hydraulic flow for such needs

 

[KB6930]

Modern tractors nowt really 15 to 20 yr old a fair bit .

We once had a demo drill on a 6290 Massey and it was struggling with it knocked off the fan to work an endrig and it flew off . Current tractors running hydraulic fan and you never know any difference

 

[snarling bee]

Well its a 2008 JD 7530.

On my hydraulic drive spreader it uses an extra 2l/hr on a 4220 Fastrac, and that is with no fert hitting them. I recon that's about 10hp
These things don't run for nothing.

 

[Andrew]

Well its a 2008 JD 7530.

On my hydraulic drive spreader it uses an extra 2l/hr on a 4220 Fastrac, and that is with no fert hitting them. I recon that's about 10hp
These things don't run for nothing.

On the spreaders I work with it’s just over 4hp, but there are a lot of varying factors.

 

[KB6930]

2008 7930 4m combi drill I just tried it on the flat at a set 8k no difference in litres per hour with or without fan going

 

[Steevo]

Modern tractors nowt really 15 to 20 yr old a fair bit .

We once had a demo drill on a 6290 Massey and it was struggling with it knocked off the fan to work an endrig and it flew off . Current tractors running hydraulic fan and you never know any difference

I've had that on a slope when running the hydraulic sprayer pump on my 5150 when going up a hill.....knock it out to test and suddenly it's supercharged!

 

[Flat 10]

Quite a bit? Didn’t people used to put little engines on simba free flows as it made quite a difference to output?

 

[Sharny dubs]

Depends on the make of the hopper. We have an amazone and it is very easy driven. Accord on the other hand need a fair bit of power.

 

[clbarclay]

Ideally you need pressure and flow sensors to check it.

Probably worth checking what effect slowing it down a bit has as well. I reckon they can waste a fair bit of power being run too fast for the system. One of my drills used to be very load and blew air back out the inlet. It is running half the outlets now that it originally had though. Slowed it down till it stopped roaring and it has been fine.

 

[fieldfarmer]

Well its a 2008 JD 7530.

On my hydraulic drive spreader it uses an extra 2l/hr on a 4220 Fastrac, and that is with no fert hitting them. I recon that's about 10hp
These things don't run for nothing.

Back in 09 I had a new 7530 to go on a kuhn power Harrow, front hopper combo, it wouldn't drive it as well as a well turned up tm 150. Put the 7530 on the dyno with and without the front fan going it took 9 hp to drive the fan.

 

[Fish]

Some of the problems related to hydraulic fans, are not lack of hp, but a lack of oil flow and poor cooling. Some fans may require 30/40 ltrs min and if you tractor only has a weezie little pump pulling oil from a hot trans, problems are bound to appear.

 

[snarling bee]

Drilling with quadtrac and vaderstad yesterday. Fan took 4% of power. 485 x 0.04 = 19.4 hp.

The other question is would a 5hp Honda power it? - probably?? Then add losses in oil pipes etc??!!
A 3 kw (4hp) grain ventilation fan does not blow as much air in comparison??

 

[Flat 10]

The simbas had hatz diesels? So maybe 20hp? Unless I remember wrong

 

[Hampton]

Drilling with quadtrac and vaderstad yesterday. Fan took 4% of power. 485 x 0.04 = 19.4 hp.

The other question is would a 5hp Honda power it? - probably?? Then add losses in oil pipes etc??!!
A 3 kw (4hp) grain ventilation fan does not blow as much air in comparison??

It depends on the fan.
Our old amazone 3m combi took 65% of tractor oil flow to run the fan. New one (same model updated) takes 21%

 

[Exfarmer]

It will be the fan motor, speed restrictor and piping , which will be the governing factor.
i cannot imagine these fans take more than 1 hp to drive, but the tractor will have to send sufficient oil to feed this .
if the oil flow is diverted internally in the tractor and there are no restrictors at the motor and the piping is of sufficient size , power losses should be minimal.
however there are likely to be restrictors in the system to protect the motor from surge overloads and the tractor will have to fight against that

 

[Farma Parma]

on modern masseys with 110lt pump not much wasted power wise but only thing you notice you must keep your revs at 1400/1500 when turning on headlands otherwise your lift
and other spools are really slow.
Its as if the fan spool has all the priority which is odd but thats how they are.
No Overheating issues & used on D6 & DVT Masseys
Using the tractors 3/4 direct to Tank Return Plumbing on both.

 

[clbarclay]

A very rough rule of thumb for working out hydraulic efficiency I heard was to allow 10% loss per component. So a pump, motor, 1 valve and some hoses could could add up to around 4.6hp extra power needed for a 10hp output.

That example is a very simplified hydraulic system too, no filtration etc.

 

[Exfarmer]

on modern masseys with 110lt pump not much wasted power wise but only thing you notice you must keep your revs at 1400/1500 when turning on headlands otherwise your lift
and other spools are really slow.
Its as if the fan spool has all the priority which is odd but thats how they are.
No Overheating issues & used on D6 & DVT Masseys
Using the tractors 3/4 direct to Tank Return Plumbing on both.

Not knowing the plumbing on your massey, but I would suggest you should turn down the spool which feeds the fan .
if the fan has adjustment on the motor it would probably need turning up then

 

[Farma Parma]

Not knowing the plumbing on your massey, but I would suggest you should turn down the spool which feeds the fan .
if the fan has adjustment on the motor it would probably need turning up then

Got in & out adjustments on the drill fan & tractor flow only at 36%
It all works a treat.