Another slurry tanker thread

[deere150]

On pricing a new tanker with Doda pump for umbilical system. What are the pros/cons of having the vacuum pump hydraulic driven on the side of the tanker and the umbilical PTO driven ? rather than having a Garda gearbox driving the two. Slurrykat aren't keen of hydraulic vacuum pump, but Abbey have been happy to price for it

 

[Mouser]

Slurrykat would be a bit 'this is how we do it and we're the best' attitude. Cant see much difference really. I'd go for hydraulic myself.

 

[daveydiesel1]

I think a bauer pump would be better than a doda imo

 

[deere150]

Slurrykat would be a bit 'this is how we do it and we're the best' attitude. Cant see much difference really. I'd go for hydraulic myself.

That's the impression I'm getting, funny that's how they used to do it. I'm wanting to go hydraulic, just wanted to make sure I was doing the right thing

 

[deere150]

I think a bauer pump would be better than a doda imo

Criman seem to be popular round here, local contractor has the agency for them

 

[twentyspence]

It may be an impression from experience.
I’m sure your working through Lloyds and they have no doubt been speaking to me.
As a sense of safety the hyd vac and the doda on the drawbar is most likely the best option if all you plan to do with the tanker is haul to the field and use the doda 90 percent of the time.
Secondly, going to a tandem tanker and hydraulic driven vaccum pump you can soon run out of spools and some men don’t want to go for control boxes etc.
Thirdly, as SK is situated in Northern Ireland the laws are already in place for low emissions spreaders. This is inevitable in the rest of the UK. When running a hyd vac and a macerator (on a low emission spreader) in my experience it has been less successful that a dual doda pump running a wide angle with the macerator.
Your local rep maybe didn’t go through all this and explain why SK may advise A and not B. We definitely aren’t saying one is wrong and one is right and have completed numerous tankers with both arrangements.

If you wish to drop me a message I’m happy to give you a call. I hope this helps.
Cheers
NS

 

[deere150]

It may be an impression from experience.
I’m sure your working through Lloyds and they have no doubt been speaking to me.
As a sense of safety the hyd vac and the doda on the drawbar is most likely the best option if all you plan to do with the tanker is haul to the field and use the doda 90 percent of the time.
Secondly, going to a tandem tanker and hydraulic driven vaccum pump you can soon run out of spools and some men don’t want to go for control boxes etc.
Thirdly, as SK is situated in Northern Ireland the laws are already in place for low emissions spreaders. This is inevitable in the rest of the UK. When running a hyd vac and a macerator (on a low emission spreader) in my experience it has been less successful that a dual doda pump running a wide angle with the macerator.
Your local rep maybe didn’t go through all this and explain why SK may advise A and not B. We definitely aren’t saying one is wrong and one is right and have completed numerous tankers with both arrangements.

If you wish to drop me a message I’m happy to give you a call. I hope this helps.
Cheers
NS

I have picked up that running a hyd pump and macerator, isn't as straightforward as it seems. I'll probably spend bigger half of my time spreading with the tanker, splash plate at the moment. Main reason going hydraulic vacuum pump, was so I didn't need PTO shaft when just using vacuum pump

 

[Davy]

What oil flow is required for a macerator and a hydraulic vac pump @twentyspence ? We have a ground drive tanker and will have to fit it with a low emission system soon.

 

[mf7480]

It may be an impression from experience.
I’m sure your working through Lloyds and they have no doubt been speaking to me.
As a sense of safety the hyd vac and the doda on the drawbar is most likely the best option if all you plan to do with the tanker is haul to the field and use the doda 90 percent of the time.
Secondly, going to a tandem tanker and hydraulic driven vaccum pump you can soon run out of spools and some men don’t want to go for control boxes etc.
Thirdly, as SK is situated in Northern Ireland the laws are already in place for low emissions spreaders. This is inevitable in the rest of the UK. When running a hyd vac and a macerator (on a low emission spreader) in my experience it has been less successful that a dual doda pump running a wide angle with the macerator.
Your local rep maybe didn’t go through all this and explain why SK may advise A and not B. We definitely aren’t saying one is wrong and one is right and have completed numerous tankers with both arrangements.

If you wish to drop me a message I’m happy to give you a call. I hope this helps.
Cheers
NS

Its surprising what you can get away with, with some creative plumbing and some basic valves I’ve got a filling filling arm with turbo fill, hydraulic drawbar height, and a 7m trailing shoe with macerator running off 4 spools.

 

[twentyspence]

Its surprising what you can get away with, with some creative plumbing and some basic valves I’ve got a filling filling arm with turbo fill, hydraulic drawbar height, and a 7m trailing shoe with macerator running off 4 spools.

O there is no doubt it can be done easily it’s the required oil flow all at one go is the issue

 

[twentyspence]

What oil flow is required for a macerator and a hydraulic vac pump @twentyspence ? We have a ground drive tanker and will have to fit it with a low emission system soon.

Just checked - 110 for both but only possible with 3/4” feed

 

[twentyspence]

If 110 l/min is needed for your macerator and hyd vac just remember that the likes of your 155r jd comes standard on a 114 l/min pump and a 215r comes standard on 155 l/min pump - these figures are at Max rpm.
Does this show the requirements for they hyd option if an applicator is ever to go on the rear?

 

[Boohoo]

Isn't the oil flow requirement a bit of a non issue?
If you've got a Doda pump on the drawbar, use it to feed your dribble bar, trailing shoe or whatever.
If you've got a ground drive tanker as mentioned above spec your hydraulic motors so that they can be plumbed in series.

 

[twentyspence]

Regardless of the oil requirement.
Firstly a centrifugal pump will not empty the tanker out completely.
Secondly I know I wouldn’t want ever Gallon of my slurry to go through a doda pump if it didn’t have to. Foreign object and obviously excessive wear if used to empty every single load?
More pipe work and weight required to run back to feed the dribble bar from the front.
It’s a no brainer to me if I’m honest. Simplify the system.

 

[Down farmer]

Isn't the oil flow requirement a bit of a non issue?
If you've got a Doda pump on the drawbar, use it to feed your dribble bar, trailing shoe or whatever.
If you've got a ground drive tanker as mentioned above spec your hydraulic motors so that they can be plumbed in series.

Surely if u have motors in series and have a blockage in macerator and need to reverse drive the oil flow this could wreck the vacuum pump also be a problem getting speeds right on two motors in series ?

 

[Boohoo]

Surely if u have motors in series and have a blockage in macerator and need to reverse drive the oil flow this could wreck the vacuum pump also be a problem getting speeds right on two motors in series ?

Wouldn't auto reverse macerators sort the blockage problem?
Can't see getting the speeds right being a problem. Spec the motors to suit and if needs be put the one that needs the highest flow in first and then bleed off some of the oil to return before it reaches the second motor via a flow divider.

 

[Grassnslurry]

Any update on this, what did you go for in the end?