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Thread: Cunill Commercial Grinder

  1. #1
    Senior Member robusto's Avatar
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    Cunill Commercial Grinder

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    It was only a matter of time before a commercial grinder joined the commercial two-group Grimac, and that time is now. :)

    I have acquired a used Cunill Space commercial grinder. Its a little-heard-of model, but very similar to most others in that catagory the Spanish Cunill maker produces.

    Why get one? Because I can ;D ;D. And, seriously, because Mrs Robusto and I were becoming annoyed by the mess made by our Iberital Challenge doserless.

    I have no qualms about the Iberitals grind quality: it is excellent. But even the mod of a cut up 2-litre milk carton to catch grinds hasnt stopped a few spraying onto the kitchen bench. Thats what happens when you updose.

    And it does take quite a bit of time to grind 19 grams on demand. And when there is a houseful of friends and relatives anxious to get a good coffee, it was very time consuming.

    So we thought we would go for a commercial doser grinder. And if you are going to upgrade, my motto is always go steeply upwards, never sideways.

    After much research and seeing what was employed in cafés, our short list of candidates comprised Gino Rossi, Mazzer Super Jolly (new) and the Cunill.

    The specs: 60 ml flat burrs, 610 ml tall, 2 kg hopper, 600 gram doser. Twelve kg, I think. It is big, but it does not overpower and still fits into the bench space to the right of the sink.

    Af 445 Watts it is very powerful and so can grind effortlessly without overheating. The doser is ajustable from 5 grams to 10 grams.

    Grind adjustment is a breeze and a pleasure. Very,very shmooooth. Just press down the detent button, grab the ring which is bolted via three small bolts to the top burr, and turn. Release the detent. Ah, no more RSI from the Iberital.

    On the downside, being a commercial beast, it is a little out of its depth in a domestic environment if you only want to grind 19 grams for a double shot.

    For the doser to measure out a correct amount, the mechanism has to be pretty much covered with grinds. And that means theyll go stale by the time they are used. Grinding on demand simply does not work.

    Nor can you dump in 19 grams of beans and expect 19 grams of grinds --most of them would be trapped inside somewhere.

    Did I say we wanted to eliminate mess ::) Not yet. Havent perfected my technique, but its pretty messy. However, the potential is there. The portafilter cups neatly around a small chute under the doser. When I get my act together, it should be impossible for any grnds to stray.

    There is no fork on which to rest the portafilter, but given that it will only be under the doser for a second or two, it may not be necessary.

    Activation is through a rocker switch on the base. There is no timer (unlike the Iberital), nor is there a switch activated by pressing the portafilter against it. This is a doser model after all.

    I dismantled and thoroughly cleaned everything of smelly old state grinds. Some parts were encrusted with them.

    The sweeper which spins with the moving burr is made of solid steel. It does not extend far enough to the edge of the chamber, so some coffee is left on the walls, and on the chamber floor. I can see a simple mod about to heappen to fix that.

    All parts were in excellent, as new condition. The top burr rests in a massive cast metal holder which is bolted down via 4 bolts. No freeplay in the moving one which of course is attached to the motor armature.

    With the naked eye, the burrs seemed OK. But under a magnifying glass, the edges appear more jaggered than sharp. A new set is in order (should be about $40).

    I have run out of beans to play with the machine and its settings, and todays freshly roasted batch might have to become a sacrifical offering. :-/

    But with the burrs set so they just touch each other and then back off slightly, the grind setting still is on the coarse side, and the resultant brew awful --- so definitely will order new burrs.

    LIKES: grind adjustment, slider to close off hopper, powerful motor, doser adjuster, solidity. Ease of dismantling.

    DISLIKES: sweeping mechanism, necessity to load up doser.

    Hope to post some pictures later.



  2. #2
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Gday Robusto,

    Sounds like a great acquisition alright, cant wait for the pictures ::)....

    Regarding "grind on demand". I do it every day with our LSM and from the dimensions you have given for the Cunhill, they would be a very close match I would think. Because of the length of the discharge chute into the doser it is inevitable that several grams of grounds are going to be trapped in there at the end of every session.

    All I do is add the quantity of beans required for a session and then add an additional 4-5g. I do a short grind and discard the first 4-5g of grounds from the doser and then let her rip with the remainder of the beans loaded into my Lizzi styled hopper (made from an insulated cup). Not a single grain of stale coffee gets near the FP this way and the loss of 4-5g of beans per session is a small price to pay for perfectly ground coffee.... Bewdyfull ;) ;D

    Cheers,
    Mal.

  3. #3
    Senior Member Dennis's Avatar
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    Re: Cunill Commercial Grinder

    Nice one Robusto - congratulations and thanks for a great review.

    Does it look like this?....


  4. #4
    Senior Member robusto's Avatar
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    Re: Cunill Commercial Grinder

    Thanks for the tip, Mal. Ill try adding the extra sacrifical grams. And sort of, Dennis, the hopper is different.

    Here are some pics:

    David and Goliath wrestle for space near the sink.


    Danny de Vito and Schwarzenegger with its stainless steel body








    The portafilter cups around the exit chute



    The doser is adjusted by turning the centre bolt with the fingers,
    clockwise for smaller amount, counter-clockwise for larger up to 10 grams


    And the Iberital with its milk carton mod to stop stray grinds




    <Edited to repair link>

  5. #5
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    Congrats.

    I love the exit chute.

    You should see if a click-clack lid will fit the hopper.
    If one des you could blow the remaining few grinds out.

    I use a brush to remove the little left in the Macaps chute then give the burrs one more burst and that throw the last of the grinds into the chute which are then brushed into the hopper with the rest and then a dosing I go.

    The brushing takes all of 5 seconds.

  6. #6
    Senior Member robusto's Avatar
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    Re: Cunill Commercial Grinder

    Good idea TG, Ill raid the kitchen cupboards for the click-clack.

    If all the grinds could be directed into two of the doser segments--instead of sprayed everywhere -- it would help producing a measured dose into the portafilter without first having to fill the doser. Something to ponder.

    By the way, one part which didnt make it back in place after the dismantling was the "tamper". Not only impracticle, but way smaller than the basket diameter anyway.


  7. #7
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    My tamper never went on the Macap in the first place.

    If you cant find a click-clack at home just do what I did and take the hopper to Big W and start trying the different sizes in the click-clack lid range.

    Cant you get used to dosing through the grinder like the rest of us?

    Grind on demand doesnt rely on 2 measured clicks for a double.
    Its just thwack, thwack, thwack until your PF is full.
    Ive adjusted my doser to minimum dose and it can take a dozen thwacks all up to sweep the doser out but in the end I have an empty doser and a full basket and bugger all extra grinds if I got the number of beans right before grinding.

  8. #8
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    Re: Cunill Commercial Grinder

    Rob
    The Cunill tamper never made it onto mine, Ive found with the tranquilo I grind for 10seconds 5-6 thwacks and thats good for a single, 18secs for a double, not left over grinds and no mess!
    I like it much better then the doserless grinders.
    Nice one youve got there :)
    Sullos

  9. #9
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    I guess its just a slightly different routine than what youve been used to with the Iberital Robusto..... Was a bit strange changing over from my Rocky at first but now it all happens a lot quicker and NO MESS - Love that part.... ;)

    Mal.

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    Re: Cunill Commercial Grinder

    Dear Mr Robusto (grovel),

    I just happen to be in the market for a very messy Iberital. How will you be retiring yours? Will it be left in that cupboard to fall into the many parts in many places syndrome? Or will you be sending it to a better world of fresh beanz and bright lights, the kind of world that I just happen to have in the vacinity of my kitchen? Please PM me if the latter applies. If not, when do you intend to hold the memorial service?


    b4b.

  11. #11
    Senior Member robusto's Avatar
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    Re: Cunill Commercial Grinder

    Thats very funny B4Brainz *;D ;D
    But I must admit I havent given much thought to what to do about the Iberital. At the moment I feel as though I have betrayed it, been unfaithful to it despite its loyalty. * :(

    Ill give thought to it.


  12. #12
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    Re: Cunill Commercial Grinder

    Hey Robusto,

    Nice one, and great review.
    Going from a domestic to a commercial beastie takes a bit of getting used to, especially the speed.
    My compak does a double in about 9 seconds, the EM0480 took a good 30.
    It doesnt leave much time for error, and can really chew up the beans whilst youre practising.

    New burrs Rock!!!!!!!!

    Getting used to the doser is really about getting used to the right dose and how much grinds are retained.
    Keep the vanes moving as you grind [thwackety, thwack] , that way each segment will have only a little coffee and each drop into the PF will be very neat and tidy.

    If your going to keep/use the hopper, the click clack lid may work well in blowing out the retained grinds, but otherwise if your throat is big enough to hold a doubles worth, try out my plunger blow-out method.
    It looks like your adjustment collar is just the right size for this....then you can measure/weigh your dose and get ievery bit out.

    http://coffeesnobs.com.au/YaBB.pl?num=1188905934

    Personally, Id really recommend a fork [make one or buy one] very convenient ...as a free hand is um err handy.
    Plus you can hang your tamper on it when youve finished.

    Congrats, Im sure well hear more about it soon

  13. #13
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Strange mini-phenomenon weve got going here with older commercial grinders I must say. After getting used to their significant presence though, its all good and Im never going back..... Their performances are just so good, in terms of speed, quality and construction.

    Becoming quite attached to my LSM ;) :)...

    Mal.

  14. #14
    Senior Member robusto's Avatar
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    Re: Cunill Commercial Grinder

    Ive noticed that there is an initial blast of fine grinds dust into the doser. This is sprayed out all over the place.

    Then things settle down, and the grinds start to fall neatly straight down.

    I am making sure there is a segment directly under to catch them. When that segment is full, I pull the dosing lever to move the next empty one into position.

    That is giving me a better idea of how much to grind. Of course, I have to keep lifting the portafilter away from the neat exit chute to check, and everytime I do that some grinds spill out. Messy.

    Also, I take back what I said about the bluntness of the burrs. Even allowing for the fact the beans are only a day old, there is a very nice dark crema emerging. The next couple of days as the beans degass more should be telling.

    Thank you all for the advice. I am going to try all suggestions.


  15. #15
    Senior Member Lizzie's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Sullo link=1190263852/0#7 date=1190295459
    Rob
    , Ive found with the tranquilo I grind for 10seconds 5-6 thwacks and thats good for a single, 18secs for a double, not left over grinds and no mess!
    I like it much better then the doserless grinders.
    Sullos
    Hey Robusto,
    i am of the counting crowd as well...
    before i grind for my shots, i run Ms Carimali 5 sec to clear the chute of stale grinds , then dose the grinds in the tray and dump them.
    i dont make single shots, so i just count to 18 for my "fill" into the deep Synesso basket... if i want to make a ristretto i count to 20... the doser sweeps clean, and apart from the slight drop of the grinds into the left side of the PF, which may spill over the edge of the PF if i am not watchful, there is not a lot of spillage.
    and what spillage there is, the tray takes care of.
    neatly.

    :D

    L

  16. #16
    Senior Member Lizzie's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Mal link=1190263852/0#1 date=1190271139
    Gday Robusto,

    and then let her rip with the remainder of the beans loaded into my Lizzi styled hopper (made from an insulated cup).
    Mal.
    OI.. i showed you mine, show us yours!!! ;) ;D ;) ;D

    L

  17. #17
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    Robusto,

    try my latest trick.

    Measure the beans into the basket then toss them ito the hopper and grind.
    Ive worked out how many I need now (slightly heaped basket).

  18. #18
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Lizzi link=1190263852/15#15 date=1190372967
    OI.. i showed you mine, show us yours!!! ;) ;D ;) ;D

    L
    Sorry about that Lizzi, bad form on my part :-[....

    Ive got a thing about bright red, my Bezz is bright red, the LSM "will be" bright red when I get around to it so naturally, the "Lizzi" hopper has to be bright red too. I think its something to do with an unsated desire to own a Ferrari ;) ::),

    Mal.


  19. #19
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    When you paint the body to match that will look awesome (and blinding).

  20. #20
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Thundergod link=1190263852/15#18 date=1190416474
    When you paint the body to match that will look awesome (and blinding).
    Hmmm, not blinding TG... Ferrari Red gets the blood moving even before I take my first sip of Java for the day ;) ;D.

    Dont know when Im going to get around to it, but when the time comes Ill probably get the LSMs outer casing powder-coated the same colour as the Bezz and then that WILL be a sight to behold ::) ;),

    Mal.

  21. #21
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    Have you been to the Ferrari shop in Rome?

  22. #22
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Thundergod link=1190263852/15#20 date=1190443386
    Have you been to the Ferrari shop in Rome?
    No mate, not so lucky Im afraid.... And if I did theyd need a tow-truck to drag me outa there ;),

    Mal.

  23. #23
    Senior Member Dennis's Avatar
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    Re: Cunill Commercial Grinder

    I dunno about this hopper Mal - looks a little like a pimple on a pumpkin? :o Then again, Im sure it will look a whole lot better once the unit is totally red. :)

    Sorry to hijack your thread Robusto - how is your new beastie performing? Have you made the mods yet?

  24. #24
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Dennis link=1190263852/15#22 date=1190499759
    I dunno about this hopper Mal - looks a little like a pimple on a pumpkin?
    As always, horses for courses Dennis.... The original hopper is a 2Kg job and just a smidgen too big for my needs ;D,

    Mal.

  25. #25
    Senior Member robusto's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Dennis link=1190263852/15#22 date=1190499759
    I dunno about this hopper Mal - looks a little like a pimple on a pumpkin? *:o *Then again, Im sure it will look a whole lot better once the unit is totally red. *:)

    Sorry to hijack your thread Robusto - how is your new beastie performing? *Have you made the mods yet?
    Im in two minds about these hoppers.... The originals are way, way too big. I cant see any circumstance in my home where it would be filled. But the shape is part of the grinder ethos.

    The improvised small ones are more practical, but dont have the same visusal impact. (Maybe that is a good thing too? I dont know :- )

    No mods Dennis. Ive hardly been out of my sick bed for the last couple of days...havent the energy to make a coffee. Darn flu.

    So much to become familiar with: Like How many notches does it take to make a difference in grind? How to avoid making a mess.

    But throughout life, once we master situations and then plateau out, climbing the learning curve once again re-energises us.

    Mmmm. Energy. :-? Could do with some now. :-[

  26. #26
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    Re: Cunill Commercial Grinder

    Rob on mine I used liquid paper to mark one of the notches for my fav bean, from that I use it as a "false zero" and go couple clicks up or down from that, most cunills dont have a start [point, just makes my life easier,
    hopefully you get what I mean.
    Sullos

  27. #27
    Senior Member Lizzie's Avatar
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    Re: Cunill Commercial Grinder

    WHOOHOOO>> i have got a hopper named after me.......heheheheh ;D ;D ;D
    thanks for sharing, Mal :) !

    Dennis, i beg to differ... mini hoppers are not pimples.. mine have a nice stainless steel band around them and look quite the part!
    OK, they may not look like big commercial hoppers, but with the stainless steel slide, band and glossy finish i have come to like them.
    well... appreciate them for what they are, anyway, "the hopper you have when you dont want a bl@@dy big commercial hopper"....

    as for the colour, Mal, ... sorry, but that is NOT Ferrari red, more like tomato sauce reddish. :-[
    we have one of those reddish cars, (aptly called "the Tomato") and it doesnt go very fast, but s@#$, it will go anywhere you ask it to!!
    bit utilitarian, really... not Ferrari at all... :( :(
    useful, tho :)

    L

  28. #28
    Senior Member robusto's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Sullo link=1190263852/15#25 date=1190527598
    Rob on mine I used liquid paper to mark one of the notches for my fav bean, from that I use it as a "false zero" and go couple clicks up or down from that, most cunills dont have a start [point, just makes my life easier,
    hopefully you get what I mean.
    Sullos
    Yes, Ive done the whiteout trick, Sullo. It is at the failsafe zone just back from where the burrs touch. IE, do not adjust finer beyond this whiteout mark. My equivalent of zero.

    I am used to the Iberital where you can turn the adjusting knob to your hearts delight (and wrists chagrin) with no appreciable difference.

    But Ive already discovered that a couple of notches on the Cunill have a comparatively significant affect.

    Thru trial and error I hope to strike the magic formula where, say, one notch equates to 5 seconds extra/less pour or whatever.

    The more taxing mod Im mentally working on is a deflector so that all the grinds about to enter the doser fall directly down into one of the segments. Instead of being sprayed everywhere.




  29. #29
    Senior Member Dennis's Avatar
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    Re: Cunill Commercial Grinder

    Didnt mean to offend - its just, well...they do look kinda small on such a big base. Would be nice to be able to "mini me" the big hoppers. :)

  30. #30
    Senior Member Lizzie's Avatar
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    Re: Cunill Commercial Grinder

    Dennis, no offence taken *;) *:-*

    and "mini-me-ing the big hoppers would be a fantastic idea!! exercise that entrepreneurial brain of yours and see what the possibilities are...? perhaps a "standard" mini-hopper with various "throat ring" options, so it fits various grinders? *:-/

    L

  31. #31
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Lizzi link=1190263852/15#29 date=1190545187
    "mini-me-ing the big hoppers would be a fantastic idea!! exercise that entrepreneurial brain of yours and see what the possibilities are...? perhaps a "standard" mini-hopper with various "throat ring" options, so it fits various grinders? :-/
    Now THAT would be a great idea..... wonder if there is any standardisation on the throat diameters of commercial machines? Would be nice if there was......

    Mal.

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    Re: Cunill Commercial Grinder

    Maybe the smaller tranquilo one will fit it? want me to measure the diametre of the throat on mine?
    gotta take the beans out first pm me if you want those measurements might be better heightwise then the big one, they look similar

    Sullos
    and I just emptied a bag of beans into it to before reading this I had a laugh

  33. #33
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    Re: Cunill Commercial Grinder

    Doesnt appear to be standardization of throat diameters. The hopper diameters on La Cimbali MD6 55mm, on the Gaggia MG 58mm. So the idea of Throat rings" may be a workable solution, much like bosses for steering wheels

  34. #34
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Hey Chris (2mcm),

    Do any of the Macap, Mazzer grinders, etc use a "drop-in" Hopper that just sits in the throat of the grinder? If so, any chance of measuring the outside diameter of the hopper where it drops in? Appreciate your help mate,

    Cheers :),
    Mal.

  35. #35
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    57mm on my Macap.

    Tape measure used not vernier calipers.

  36. #36
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    Re: Cunill Commercial Grinder

    the tranquilos bit that the hopper sticks into between hopper and top of grinder is 45.94 and the and the bottom of the hopper that kinda screws into that thing(it also closes off the beans to grinder) is 61.7
    according to Vern :)

  37. #37
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Quote Originally Posted by Thundergod link=1190263852/30#34 date=1190642874
    57mm on my Macap.

    Tape measure used not vernier calipers.
    How is the Macap hopper attached TG? Just drops in or affixed in some way?

    Mal.

  38. #38
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    It just drops in.

    There is a hole in it through which a screw is meant to protude.
    I leave the screw wound out though for ease of removal.

  39. #39
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Hmmm,

    Sounds promising :)

    Mal.

  40. #40
    Senior Member Dennis's Avatar
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    Re: Cunill Commercial Grinder

    Te mazzer is about 58mm Mal; drops in with a security screw option. I wonder if a flexible, rubber collar would be an option that could work with the more popular grinders at least?

  41. #41
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    So Mal,

    What size throat on the Cunill?

  42. #42
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    Hi TG,

    I dont have the Cunhill, I think thats Sullos.... mine is a La San Marco and the throat I.D. of the grinder is tapered slightly from top to bottom with the top-most I.D. being 67.7mm and the bottom I.D. about 59mm estimated (vernier cant reach the bottom).

    I think the idea of a rubber or soft plastic collar is a good one and shouldnt be too difficult to knock up. I think a new Macap M4 Hopper is beckoning ::) ;),

    Mal.

  43. #43
    Sleep is overrated Thundergod's Avatar
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    Re: Cunill Commercial Grinder

    Will that make it a La San Macap?

    Right now its a La Sans Hopper.

  44. #44
    Mal Dimal's Avatar
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    Re: Cunill Commercial Grinder

    [smiley=laugh.gif]



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