Slurry pump selection

Keep_moving

Member
Livestock Farmer
Good morning,
I’m looking into updating my agitator for something stronger. I currently have an nc3000 super. Although a great pump I’m finding that I’m getting it hard to agitate my 90 ft slatted tank. Of the 6 bays I’m finding it’s agitating 4 of those bays fine but the middle 2 bays are not getting mixed as good as they should. I do draw plenty of pig sh!t before starting but cows are devils for pulling in silage as well So have a few lumps. It’s baled silage I feed them.
Any opinions very welcome thanks
 

Khan

Member
Location
Emerald Isle
We've a Redrock Superflow, will mix 90ft passage from each end no problem though dairy cow slurry without bales. We have the changeover valve on it and 120ft of umbilical pipe to move slurry from one tank to another. We've found if we are agitating a long tank full to the top we start off pumping to the other end through the pipe to get the tank moving a bit, helps speed the job a lot if there is no room to get the jetter free.
 

Sharpy

Member
Livestock Farmer
Good morning,
I’m looking into updating my agitator for something stronger. I currently have an nc3000 super. Although a great pump I’m finding that I’m getting it hard to agitate my 90 ft slatted tank. Of the 6 bays I’m finding it’s agitating 4 of those bays fine but the middle 2 bays are not getting mixed as good as they should. I do draw plenty of pig sh!t before starting but cows are devils for pulling in silage as well So have a few lumps. It’s baled silage I feed them.
Any opinions very welcome thanks
Possibly your impeller is worn?
 

Keep_moving

Member
Livestock Farmer
Possibly your impeller is worn?
I took off the outer impeller on the agitator because the lumps of silage were getting blocked on it and restricting the main impeller from pumping I have heard a lot of ppl doing this due to getting blockages. Was so bad once I had to take off the pto over 10 different times in the one day and lift out the agitator our of the agitation point. It was after this happened that I decided to remove the outer impeller. Pump would not have much work done tbh. It only got its first rubber bearing this year after 8 years!
 

Sharpy

Member
Livestock Farmer
I took off the outer impeller on the agitator because the lumps of silage were getting blocked on it and restricting the main impeller from pumping I have heard a lot of ppl doing this due to getting blockages. Was so bad once I had to take off the pto over 10 different times in the one day and lift out the agitator our of the agitation point. It was after this happened that I decided to remove the outer impeller. Pump would not have much work done tbh. It only got its first rubber bearing this year after 8 years!
The outer impeller has a big effect on output, though if its blocking all the time what else could you have done? All I can think of is either put a central hatch in to mix from the middle as well or start chopping your bales. They will waste so much less silage plus its easier graiped etc.
 

Keep_moving

Member
Livestock Farmer
This was the outer impeller it’s not the best design because it attracts lumps easily enough (one with the tape). Other pic then is an impeller off a contractors agitator it’s design is better and didn’t block at all in the same tank
 

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Sharpy

Member
Livestock Farmer
This was the outer impeller it’s not the best design because it attracts lumps easily enough (one with the tape). Other pic then is an impeller off a contractors agitator it’s design is better and didn’t block at all in the same tank
Why don't you modify your impeller using the contractors as a template?
 

daveydiesel1

Member
Livestock Farmer
Location
Co antrim
The second pic is a redrock pump. The redrock is a real good design. Dont like nc as u have to take the shaft of to remove from tank. What sort of numpty design that. They also do a version that doesnt need shaft removed but its a lot more clumsy machine compared to redrock
 

Boohoo

Member
Location
Newtownabbey
Where are the mixing points? Either end so it's only mixing 2 bays? I'd put the outer impeller back on, I've never heard of anyone taking it off. Are you working the pump up and down on the ram? If the crust is thick you need the nozzle just below the surface. What tractor have you got on it? They need power and revs if you're in a big tank of thick stuff. I wouldn't copy anything off a Redrock, the NC is twice the pump.
 

Keep_moving

Member
Livestock Farmer
Where are the mixing points? Either end so it's only mixing 2 bays? I'd put the outer impeller back on, I've never heard of anyone taking it off. Are you working the pump up and down on the ram? If the crust is thick you need the nozzle just below the surface. What tractor have you got on it? They need power and revs if you're in a big tank of thick stuff. I wouldn't copy anything off a Redrock, the NC is twice the pump.
Yep either end are the agitation points. Yes I do have the ram going as well up and down definitely does help. Have a ts115 on it so have enough poke. Maybe I’m just an impatient bugger :D

Is it true that running them in 540e ruins the gearbox as opposed to the recommended 540 ?
I’d imagine you wouldn’t as long as you kept the revs down and not redden it
 

Boohoo

Member
Location
Newtownabbey
Yep either end are the agitation points. Yes I do have the ram going as well up and down definitely does help. Have a ts115 on it so have enough poke. Maybe I’m just an impatient bugger :D

Is it true that running them in 540e ruins the gearbox as opposed to the recommended 540 ?
I’d imagine you wouldn’t as long as you kept the revs down and not redden it
Pto engagement can be sharp in 540e but the gearbox won't know whether the pto is in 540 or 540e if the pto speed is the same. Sometimes you need a bit more than 540 to get things moving. I remember mixing a tank with our Case 844 that a NH 7840 wouldn't mix because the 844 had more pto revs although around 60hp less. With the benefit of hindsight we should've tried the 78 in the 1000
 
Good morning,
I’m looking into updating my agitator for something stronger. I currently have an nc3000 super. Although a great pump I’m finding that I’m getting it hard to agitate my 90 ft slatted tank. Of the 6 bays I’m finding it’s agitating 4 of those bays fine but the middle 2 bays are not getting mixed as good as they should. I do draw plenty of pig sh!t before starting but cows are devils for pulling in silage as well So have a few lumps. It’s baled silage I feed them.
Any opinions very welcome thanks
This was the outer impeller it’s not the best design because it attracts lumps easily enough (one with the tape). Other pic then is an impeller off a contractors agitator it’s design is better and didn’t block at all in the same tank
The outer impeller I’ve seen been taken off and then put back on in reverse instead of the flats facing up there now facing down that’s the probably the best way
 

JohnAC

Member
Livestock Farmer
Have a look at a Connor our contractor has one think it could be a 7000 I don’t think many other pumps could touch it but it takes at least 140hp to drive it we have a redrock superflow and its a good pump think it would pump thick slurry further than a neighbours no 3000
 

Cmoran

Member
Livestock Farmer
Location
Galway Ireland
Definitely hard beat a Conor 7000 for mixing it will take a good 130hp to work it though if using smaller Hp the Conor 6000 is a great machine also. Have both and wouldn’t change them
 

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