Unimat 3 collet holder

I'm trying to find a place to purchase a collet holder (chuck) for a Unimat 3. I have found a few sources for complete sets of collets with a holder. I have not been able to find a source that sells the collet holder only.

I appreciate any help,

Byron

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Byron, chuck for what type and size of collet ?

Emgee

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I can get collets in size ER-16, ER-20, or ER-25. The largest collet I would probably need is 5/8" (16mm).

Your set would be perfect for my Unimat 3. I was hoping to get original EMCO items since all my lathe and drill attachment accessories were made my EMCO. I live in the USA and if you are willing to ship them to me please PM me with the price you would like to sell them for.

Look forward to hearing from you,

Byron

I just checked my source for collets and found out I would need the ER-25 collets to get up to the maximum size I would like to use. This would be my preferred size.

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Emco did/do an ER25 chuck that screws direct to the spindle on the Emco 5 milling drilling accessory fitted to some 5 cnc lathes and 5 manual lathes.
Original EMCO, item no. 200 050, Fixing M14x1

You don't say if the thread you need is M14x1 or M14x1.5 ?

Emgee

The Unimat 3 uses M14x1 thread.

Turbine Guy

Original EMCO, item no. 200 050, Fixing M14x1 as in picture, collet recessed into the body so takes up less height from your set-up if milling/drilling, also less overhang from the spindle.

From my own experience using the 5 milling attachment I wouldn't advise using a 16mm milling cutter because the unit is quite low power motor, best results will be obtained using smaller diameters but then the spindle speeds may be a bit low, so feedrate will have to be reduced to prevent stalling.

Used with correct size of cutter and consideration to the points raised excellent work can be accomplished.

Emgee

Hi Emgee,

The collet chuck you showed the picture of (EMCO 200 050) would be perfect for my needs. If anyone knows where I could obtain one of these (new or used) I would appreciate it. As br mentioned in a preceding post, the ER-25 collet chuck is available as a complete set with collets on ebay.  I would prefer to get just the chuck if possible.

Thanks for the help,

Byron

Edited By Turbine Guy on 21/01/2021 19:24:57

I purchased the Emco 200 250 collet chuck for my Unimat from Pro Machine Tools a few years ago and have been very happy with it.
Unfortunately, the Pro Machine Tools website is currently undergoing maintenance so it is not possible to check if they still have stock but it might be worth contacting them to see if they still stock it.

Clive

After looking at the cost of buying the collets individually, I realize what a bargain the ER-25 collet chuck with the set of collets sold on ebay is. I went ahead and ordered the set mentioned by br.

Thank you all for your help,

Byron

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Emco C5 spare parts etc. can also be bought at Emco Holz & Hobby in Austria.

Thanks for the source. They appear to sell the collet holder I thought would be ideal for me as shown in Holz & Hobby This source could be useful for other EMCO parts.

I have the strong feeling that E H&H also act as a distributor to sellers in Western Europa but I am not sure.

I received the collet set that I ordered on Ebay. The runout was very bad so I looked for help to see if anyone else had this problem and what they did to fix it. I found the following thread Collet Runout that gave suggestions for correcting problems with collet holders. After trying some of the suggestions, I came to the conclusion that fixing the collet chuck is beyond my skill and equipment capabilities. After seeing the size of the ER-25 collet set, I agree with Emgee that an ER-16 collet set would be more appropriate for the Unimat 3.

br,

I sent you a PM that I am interested in purchasing the E16 collet set if it is still available.

Thanks for your help,

Byron

Edited By Turbine Guy on 17/02/2021 13:12:41

Did you buy the collet set from a seller apparently in Wales (Mountain Ash)? I bought an ER16 one from him, runout was awful and the small nut would not take smaller collets. I returned it as not fit for purpose and got a refund.