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Thread: La Cimbali DRM Belt Drive Conical/Flat Grinder

  1. #1
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    La Cimbali DRM Belt Drive Conical/Flat Grinder

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Just finished up a full strip and clean on one of my latest toys and couldnt resist showing it off *::) . There was several of these just sold on feralbay by Aroma in Sydney along with some direct drive ones as well. Being a greedy bugger I brought one of each ;) I also know of another couple of owners here as well.

    Mine came with a new set of flat burrs but the old set were unmarked so I am going to continue with those for a while until a full restoration and repaint takes place.

    WAF or HAF is most likely zero due to the size, mates what the !@#$ is that and wow factor is huge *;D From a noise point of view it is quieter than any grinder I have heard recently as the head runs at around 400RPM due to the belt.

    Mods to come are a smaller hopper and a modded top plate to do that with (next few weeks) and a repaint of the base later and a buff of the stainless.

    Grind is super consistant 8-)

    Trial Fit


    Gettin Naked for a clean


    Conical Bean Breaking section


    Everything is Big *:)


    Last time I was cleaned was ????


    Yes that is mould on the doser vanes *:P


    Installed and ready to run *8-)

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Good to see another DRM owner here!

    Mine was in a lot better shape when I got it (there certainly wasnt any mould :o ::))....

    I also have a fan in the rear cover which keeps the grinder cool (really useful when you "grind on demand" and only for a relatively few coffees at a time! ;))

    They certainly do a great job!! Very happy with mine.

  3. #3
    Mal Dimal's Avatar
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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Excellent grinders, no doubt about it... Just look at the size of the frame and the motor, etc. Should last a thousand years and there is just no way that those burrs are ever going to become misaligned 8-). Whats the DD unit like under the bonnet bean? Equally as impressive no doubt?

    Mal.

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    It just so happens I have a shot ;) It also has a shot counter :)

    I did see on a US site somewhere that the fan was a fairly standard mod for high use but I suspect mine will be just OK at about 3 or 4 a day ;)



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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    beanflying,

    I think Mal is interested in the direct drive versions internals....

    As far as I am aware they are almost identical...... just the rotating burr set is fixed to the end of the motor shaft rather than a lay shaft.....

    Yep, solid as a rock..... and with a 1/2HP motor.... grinding rocks - not a problem!

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    That makes more sense doh DD I was thinking doser!! That is next weeks project but the outside is fairly similar so I guess. I forgot to take a pic of the upper burr carrier but it is made of brass.

    Only problem is my litte Neutral Swiss item on the bench is getting worried that its turn to go may be next ;)

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Quote Originally Posted by beanflying link=1222432676/0#5 date=1222434502

    Only problem is my litte Neutral Swiss item on the bench is getting worried that its turn to go may be next *;)
    Yep, I also had one of those..... many, many moons ago now.....

    But the Swiss Miss disappeared long before the "Italian Stallion" grinder arrived on the scene ;) ;D ;D ;D ;D

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Yeah I just finished putting mine back together.... I managed to goto the roastery and he just said, "Take your pick". There was as palate load there of mixed belt driven (which I picked up) and direct drive. The beauty of going there to pick up was a) I chose the best one ther efor sure as it hadnt seen a heap of use, and got a heap of spares (burrs, belts relays etc, etc) not to mention the swag of coffee and tour.

    Theyd been taken out of the cafes etc and gradually replaced with Mazzers as parts were no longer available as they changed the model on him. He used to be an imprter of these DRMs.

    So Ive got a Rocky, a Super Jolly and now the La Cimbali DRM.... for my humble little apartment. Can one have too many grinders? TG? ;)

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    After a few days of dialling it in it is a very nice improvement over the IC the consistancy of grind is fantastic from espresso (4 on the dial) to plunger (about 12-16) and a lot less turns between the two points *8-)

    The doser sweeps nice and clean so even making only one or two doesnt leave much behind to go stale (or mouldy) *:P

    Just one question about adjusting the grind, did I read correctly somewhere that this should be done with the grinder running?

    And yes Yeeza you can possibly have to many grinders but being single that number for me is almost certainly a lot higher than the attached CS where for some even one may be to many ;D

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Hi Yeeza,
    How do the shots poured from the grounds of the Cimbali compare to those of the Super Jolly? Is there any discernible difference?

  11. #11
    Mal Dimal's Avatar
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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Quote Originally Posted by beanflying link=1222432676/0#8 date=1222567787
    Just one question about adjusting the grind, did I read correctly somewhere that this should be done with the grinder running?
    Gday bean...

    Its more to do with adjusting the grind finer mate as any grounds caught between the upper and lower burrs may prevent you from adjusting it down and may even lead to stalling the rotor (but probably not with one of these "Arnie" grinders ;)). So long as you stay away from allowing the burrs to touch, all will be good and even if the burrs do touch, no real harm can be done as the contact surfaces have been ground and polished flat so theres nothing for either burr to get a grip on... If you know what I mean. Probably havent described that very well... :-?

    The above applies to grinders with adjustable Flat Burr-Plates and NOT for Conical Burr jobs as these can and will tear into each other. Dont think its an issue with the DRM though as the Flat Burrs do the actual fine grind, with the Conical Burrs doing the job of a bean cracker rather than grinding.

    Hope that helps mate... :)

    Mal.

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Hi Mal,

    thanks for that. I will have some pull down pics of the DD later this coming week. Helicopter upgrading this week over a fine cup of CS Wow until I get back to some roasting :)

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Quote Originally Posted by Paolo link=1222432676/0#9 date=1222569182
    Hi Yeeza,
    How do the shots poured from the grounds of *the Cimbali compare to those of the Super Jolly? Is there any discernible difference?
    Hi Paolo,
    To be honest, I cant tell the difference. Someone with a more discernable palate may be able to tell the difference. Frankly I think there are other variables within my technique that I need to tighten up to be able to put the difference in taste/extraction down to the grinder (these two grinders anyway). I do notice differences between the Rocky and the SJ though in taste.... even then, I dont know how much of that is technique.

    I guess one of these machines new, side-by-side with a SJ, youd how there was a difference in light of the original price.

    Either way, I get killer coffees out of both of them.

    Sorry that that doesnt make it any clearer.

    YeeZa

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Finally found some time to drop the top on the direct Drive DRM/Cimbali.

    Externally there is no differences same doser, base, Case and Hopper assembly. Internally it takes the same flat and conical burrs so I now have two spare sets :) The upper burr carrier is the same as well.

    The only minor difference apart from the drive is there is no manual start pushbutton (YET) as when you power the unit it runs till the hopper is full then switches off. The Belt drive version needs to be manually tripped by either the doser handle or the pushbutton.

    I havnt put any beans into it yet so it will be interesting to see how grind speed, noise and heat compare with the higher speed.

    Coopers Pale Ale Fuelled Cleaning


    Rear Case removed


    Partially Stripped for cleaning

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Hey, hey Bean

    I happened to pick one of these up as well, brought back some good memories seeing the DRM belt drive stripped for a refurb and clean. Thx for the photos :)

    Yes, I stand there in the kitchen with a hot cuppa and just admire it sometimes, and with a shorter hopper ( thx for the advice JavaB ) it doesnt look so beastie and the wife doesnt mind it now at about 45cm in height.

    Happy grinding Bean

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Hi Ratpadz,

    What did you organise to use as a shorter hopper?
    Can you send us a picture?

    Cheers,
    Paolo

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Beat me to the question, I was going to have a look next week for a hopper around the 3-500g size to do the job.

    Also did you need to make a plastic collar to resize the base of the hopper?

    thanks

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    Mal Dimal's Avatar
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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Very impressive bean... 8-)

    Thats a cool piece of engineering and at a guess, thats probably an 8-12 pole motor driving the burrs. Much better than an intervening reduction transmission of some kind. Simple, nothing extra to wear out and loads of torque. Of the two designs, this would be my preference.... ::)

    Mal.

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    My thanks go to JavaB on that one, this is what he told me

    "Re the hopper, you wont get a replacement (they, like everything else on that model, are unique)...

    But a fine bladed hacksaw.... a bit of masking tape to provide a guide..... and you can have it any height you want Wink

    The hoppers sides are almost parallel.... so the lid still fits (actually a tiny bit loose..... but a little black insulation tape inside the lip - where you cant see it - and its real tight again!) However if you "grind on demand" - like I do - it doesnt need to be super tight."

    Fits nicely under the cupboards following "surgery" Roll Eyes

    So unscrew the plastic collar from the hopper & with a $2.00 fine toothed hacksaw blade, a little measuring to make sure all is square and some very patient and careful sawing i just chopped off the top to make mine 100mm high. I didnt need to use any tape around the top as the lid fit pretty well.

    sorry cant get a photo to attach ( dont know what im doing wrong ) will keep on trying


    hope this helps, worked great for me


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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    woops, a bit big i think sorry bout that

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    hopefully this is right

    N.B.

    Gday Ratpadz...... [smiley=thumbsup.gif]

    640x480 (W x H) pixels is the preferred maximum size mate and I had already resized your previous image before turning over the page.... Doh! :-[

    Anyway, there is some handy info about how to easily resize your images, here via
    this link which may be helpful in the future :).

    Cheers,
    Mal.



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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    I guess the hoppers are the same profile all the way down, so chopping it down isnt a prob for the lid to still fit... although theres no way Im chopping this one down. Im sure my Super Jolly already feels inadequate when I got rid of the old giant hopper and put on the extra short Mini hopper.

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    That mod works well for height but I think I might go a more conventional mini hopper and a new brushed Stainless top for mine. As I only drop about 50-100g of beans in at a time seems a little bit of overkill to have a 2kg hopper. But having two 10kg grinders fitted with 200g dosers is overkill too I guess :)

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Quote Originally Posted by YeeZa link=1222432676/20#21 date=1222983476
    I guess the hoppers are the same profile all the way down, so chopping it down isnt a prob for the lid to still fit... although theres no way Im chopping this one down. Im sure my Super Jolly already feels inadequate when I got rid of the old giant hopper and put on the extra short Mini hopper.
    Mate, dont put too much emphasis on the feelings of your coffee grinders. I may be a selfish bastard (no, cross out the may be) so I like to take care of myself first.

    Im afraid I took one too many plane flights where the safety demo says to look to your own oxygen first and when youre OK, then help others. *:D

    Greg

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    This comes under the heading of trivia or minutia.

    Open the slide on the hopper on one of these beasties, close then grind and you get on average 15.3g +/- .3g of ground out the other end. Nice way to avoid grinds left in the doser or wasting beans. 8-)

    Who needs a Mazzer Electronic :D

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Quote Originally Posted by 4E494D424A405545424B2C0 link=1222432676/22#22 date=1223002850
    But having two 10kg grinders fitted with 200g dosers is overkill too I guess
    ;D ROFLPMSL as the now owner of 6 more espresso machines and a K10 what was I thinking saying the DRMs were overkill (I now KNOW there is no such thing)

    Out of interest both are still going well did a bearing change last year. Now on reduced duties due to the K10 but still no immediate plans to get rid of either of them.

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Quote Originally Posted by 797E7A757D776272757C1B0 link=1222432676/25#25 date=1297402320
    Out of interest both are still going well did a bearing change last year. No on reduced duties due to the K10 but still no immediate plans to get rid of either of them.
    I know if I had a good one bean, it would stay with me to the end.... ;)

    I just love the engineering and design work put into these babies 8-)

    Mal.

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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Acquired a La Cimbali Cadet a few days ago. Virtually as new only just over a 1000 on the counter. A quick clean and she is up and running. Leaves my old Sunbeam for dead thats for sure.

    I found a schematic for the Cadet if any one needs it i have attached it to this post.


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    Re: La Cimbali DRM Belt Drive Conical/Flat Grinder

    Nice find with the exploded view. :) It is basically the same internally as my non belt drive DRM and looks like it will share a lot of parts.

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    Quote Originally Posted by beanflying View Post
    This comes under the heading of trivia or minutia.

    Open the slide on the hopper on one of these beasties, close then grind and you get on average 15.3g +/- .3g of ground out the other end. Nice way to avoid grinds left in the doser or wasting beans. 8-)

    Who needs a Mazzer Electronic
    Thats very usefull information, Thanks!!

    Yeah, I know its an very old threat,



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