Law Denis D101 grain cleaner

New Puritan · Jul 21, 2019

Apologies if this ought to go in the classic machinery section...

Does anyone know anything about these machines please? I have bought this one off a well nown internet auction site, and here it is in the barn:

If anyone has a manual for one of them knocking around or could point me in the direction of a PDF etc., I'd be most grateful.

Obviously I get the principal of it - the grain goes in and it shakes some sieves about, but I'm just not quite sure what all the levers do. Someone has helpfully written on one end which sieves to use for a range of crops which is handy.

There is a lever on the side which raises the brushes up and down for when the sieves are changed, where the black arrow is below:

But can anyone tell me what the two levers with red arrows pointing to them do? They work nicely, and something moves inside, but what is it?

And similarly there's two hatches which open where the green arrows are pointed - what are they for?

I've not run it up yet as I need to get a cable for it, but I have given it a good vacuum / brush down, and greased it etc., and it all seems to be in good order. It came with a load of odds and ends which I need to figure out how to make use of.

Many thanks for any help... Try not to be jealous of the other equipment that's found its way into the photos, and top marks to the first person to notice the flail mower's belt guard has been removed (for maintenance).

bravheart · Jul 22, 2019

My guess is it's all part of the dust extraction.
In general the grain will enter the dresser above the two portholes, the grain should be about halfway up those windows and controlled by sliding the counterbalance weights ( red lumps below the portholes) back and forward. This gets an even flow across the full width of the top seive. As the grain is falling through and onto the top seive a dust extractor will be sucking up light weight stuff, the amount of suction applied is controlled by the handles (your red arrow) and a similar system will be as the good grain is freefalling out of the dresser (other red arrow handle)
These air suction streams won't carry all the heavier lights out of the dresser, the heavier particles are only lifted a short way and land in a auger trough, there augers screw material to the side of the dresser and expell it while trying to keep the suction force constant inside the machine. That's what the flapped outlets marked green are, keeping suction constant but still expelling lightweight materials.

New Puritan · Jul 22, 2019

Fantastic - thank you @bravheart - that's really helpful and will give me something to go on when I get it started up. ☺

PostHarvest · Jul 22, 2019

Take a look at this https://www.denis.fr/en/materials/cleaning/cleaner/193-cleaner-separator-nsd-1.html
Its for a later model cleaner but the principle is the same. The fan on top draws air in through grain as it falls onto the screens and when it leaves the screens. The two levers you have marked in red adjust the air flow through each grain stream. You need to move the two red weights under the portholes to adjust the flow rate of grain across the sieves. These cleaners are pretty bomb - and rat - proof

sulky · Jul 22, 2019

New Puritan said:
Apologies if this ought to go in the classic machinery section...

Does anyone know anything about these machines please? I have bought this one off a well nown internet auction site, and here it is in the barn:

View attachment 822792
If anyone has a manual for one of them knocking around or could point me in the direction of a PDF etc., I'd be most grateful.

Obviously I get the principal of it - the grain goes in and it shakes some sieves about, but I'm just not quite sure what all the levers do. Someone has helpfully written on one end which sieves to use for a range of crops which is handy.

There is a lever on the side which raises the brushes up and down for when the sieves are changed, where the black arrow is below:

View attachment 822798

But can anyone tell me what the two levers with red arrows pointing to them do? They work nicely, and something moves inside, but what is it?

And similarly there's two hatches which open where the green arrows are pointed - what are they for?

I've not run it up yet as I need to get a cable for it, but I have given it a good vacuum / brush down, and greased it etc., and it all seems to be in good order. It came with a load of odds and ends which I need to figure out how to make use of.

View attachment 822800
View attachment 822802
View attachment 822804
View attachment 822806
Many thanks for any help... Try not to be jealous of the other equipment that's found its way into the photos, and top marks to the first person to notice the flail mower's belt guard has been removed (for maintenance).

i used to have a law-dennis d50 the small brother to yours same principal just a bit narrower whats been said is right only i noticed you havent any seives fitted (hope youve got them ) i had three sizes small=rape medium=barley/wheat large =oats, on ours we made a wooden box on the hopper at top and fed it with 3inch auger and had a bit of 4inch/100mm drain pipe as overflow at right height to keep hopper full at all times as porthole windows shoud be covered with grain at all times to keep level on top seive as a feed roller turns to distribute seed /ajust counter weights for speed of feed . we hung hessian sacks on hooks for large and lights the bottom levers need ajusting up or down as to suck of lights as required but just so the fan/aspirator leaves good seed it made a super job of every thing we put in it up to seed standard if we had a cock-up just put it back through again. i will have a look through my old manuals for instructions but may have gone out with fullwood litrature

bravheart · Jul 22, 2019

sulky said:
i used to have a law-dennis d50 the small brother to yours same principal just a bit narrower whats been said is right only i noticed you havent any seives fitted (hope youve got them ) i had three sizes small=rape medium=barley/wheat large =oats, on ours we made a wooden box on the hopper at top and fed it with 3inch auger and had a bit of 4inch/100mm drain pipe as overflow at right height to keep hopper full at all times as porthole windows shoud be covered with grain at all times to keep level on top seive as a feed roller turns to distribute seed /ajust counter weights for speed of feed . we hung hessian sacks on hooks for large and lights the bottom levers need ajusting up or down as to suck of lights as required but just so the fan/aspirator leaves good seed it made a super job of every thing we put in it up to seed standard if we had a cock-up just put it back through again. i will have a look through my old manuals for instructions but may have gone out with fullwood litrature

Good point, any dresser should be kept full with an overload back to the pit to keep the flow even.

JD6920s · Jul 22, 2019

New Puritan said:
Apologies if this ought to go in the classic machinery section...

Does anyone know anything about these machines please? I have bought this one off a well nown internet auction site, and here it is in the barn:

View attachment 822792
If anyone has a manual for one of them knocking around or could point me in the direction of a PDF etc., I'd be most grateful.

Obviously I get the principal of it - the grain goes in and it shakes some sieves about, but I'm just not quite sure what all the levers do. Someone has helpfully written on one end which sieves to use for a range of crops which is handy.

There is a lever on the side which raises the brushes up and down for when the sieves are changed, where the black arrow is below:

View attachment 822798

But can anyone tell me what the two levers with red arrows pointing to them do? They work nicely, and something moves inside, but what is it?

And similarly there's two hatches which open where the green arrows are pointed - what are they for?

I've not run it up yet as I need to get a cable for it, but I have given it a good vacuum / brush down, and greased it etc., and it all seems to be in good order. It came with a load of odds and ends which I need to figure out how to make use of.

View attachment 822800
View attachment 822802
View attachment 822804
View attachment 822806
Many thanks for any help... Try not to be jealous of the other equipment that's found its way into the photos, and top marks to the first person to notice the flail mower's belt guard has been removed (for maintenance).

We have one identical, I have the handbook too so I could photograph the pages and email you if you send me your email address.

New Puritan · Jul 22, 2019

Thanks @PostHarvest , @sulky & @JD6920s ! All really helpful.

I do have the sieves for it, it came with about 10 or 12 in all that look to be in good condition.

I'm looking forward to having a play about with it now...

I will send you a pm @JD6920s.

Thanks again everyone. ☺

New Puritan · Jul 24, 2019

Many thanks to all who replied to this thread, and especially @JD6920s who took the trouble to scan his manual in and email it to me. Brilliant, thanks!

New Puritan · Aug 17, 2019

So I have found a 3 phase cable for it and fired it up, and all appears to be working okay, which is a result

However - and apologies if this is a real dunce question - how come the screens are only half as long as they ought to be? Some screens have a sort of 'drawer' front on them, and some don't. Am I meant to link them together somehow? I have ten screens and about half are the drawer type.

Thanks again for any help...

Exfarmer · Aug 17, 2019

The screens shoyld be in pairs. I think the front screen will be smaller than the back screen
the front screen may drop the grain straight through.
Never worked with Law Dennis cleaners though had a swedish one myself

Dennis · Aug 17, 2019

I have a d202 which I guess uses similar screens, they are in pairs the ones without the draw front go in first then the other ones will hook onto them.

JD6920s · Aug 17, 2019

New Puritan said:
So I have found a 3 phase cable for it and fired it up, and all appears to be working okay, which is a result

However - and apologies if this is a real dunce question - how come the screens are only half as long as they ought to be? Some screens have a sort of 'drawer' front on them, and some don't. Am I meant to link them together somehow? I have ten screens and about half are the drawer type.

Thanks again for any help...

They are in two equal pieces, the drawer front as you call it with the handles is the back, and has a lip on the front that drops into the front screen after you have slid the front screen almost all the way in, they should have their size marked on the one side of each screen rail, match them in pairs and use as detailed in the handbook for relevant crops.

New Puritan · Aug 17, 2019

Ace! Thanks @Exfarmer , @Dennis and @JD6920s - that makes sense. Yes they are marked on the sides what sizes they are (well most of them, some have faded).

I thought this might be the case (i.e. the two halves and them linking together), but was also worried I'd happily push one of the non-drawer ones in and then get it stuck inside and wonder how to get it back out... Some of this stuff seems so simple when it's explained, but when I'm standing there in the shed with bits in my hand, it can suddenly seem quite complicated.

Thanks everyone!

JD6920s · Aug 17, 2019

New Puritan said:
So I have found a 3 phase cable for it and fired it up, and all appears to be working okay, which is a result

However - and apologies if this is a real dunce question - how come the screens are only half as long as they ought to be? Some screens have a sort of 'drawer' front on them, and some don't. Am I meant to link them together somehow? I have ten screens and about half are the drawer type.

Thanks again for any help...

They are in two equal pieces, the drawer front as you call it with the handles is the back, and has a lip on the front that drops into the front screen after you have slid the front screen almost all the way in, they should have their size marked on the one side of each screen rail, match them in pairs and use as detailed in the handbook for relevant crops.

New Puritan · Aug 17, 2019

If anyone has a 5 x 30 and a 3.5R screen knocking around for these I'd be interested

bakerboy1 · Jan 26, 2021

New Puritan said:
Apologies if this ought to go in the classic machinery section...

Does anyone know anything about these machines please? I have bought this one off a well nown internet auction site, and here it is in the barn:

View attachment 822792
If anyone has a manual for one of them knocking around or could point me in the direction of a PDF etc., I'd be most grateful.

Obviously I get the principal of it - the grain goes in and it shakes some sieves about, but I'm just not quite sure what all the levers do. Someone has helpfully written on one end which sieves to use for a range of crops which is handy.

There is a lever on the side which raises the brushes up and down for when the sieves are changed, where the black arrow is below:

View attachment 822798

But can anyone tell me what the two levers with red arrows pointing to them do? They work nicely, and something moves inside, but what is it?

And similarly there's two hatches which open where the green arrows are pointed - what are they for?

I've not run it up yet as I need to get a cable for it, but I have given it a good vacuum / brush down, and greased it etc., and it all seems to be in good order. It came with a load of odds and ends which I need to figure out how to make use of.

View attachment 822800
View attachment 822802
View attachment 822804
View attachment 822806
Many thanks for any help... Try not to be jealous of the other equipment that's found its way into the photos, and top marks to the first person to notice the flail mower's belt guard has been removed (for maintenance).

Did you get sorted with this?

New Puritan · Feb 1, 2021

Yes I did, thanks @bakerboy1 .

Newbie Malter · Mar 12, 2021

Hey, I'm on the look out for a grain cleaner like the reciprocating Law-Denis or Rotary. Starting out on a small scale malting project - if you or anyone you know may have one for sale I'ld be interested.
I came by this article of New Puritan's - how did your LD-101 work out ? Would you recommend it?

bakerboy1 · Mar 12, 2021

Used law Denis D100 and D200 36 years and all law Denis equipment is excellent.Ifyou need any advice on them message me

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