Gerhard, I don't recall you saying exactly what you're pulling/lifting, but it's worthwhile to note that most winch specs you'll find are on the first layer of rope. Because the drums are fairly small in diameter, pulling power quickly decreases and speed quickly increases as you add layers of rope. Winches in this range will likely have 3/16" or 5/32" wire rope. For instance, A 1.6HP Warn 12vdc winch, 1700lb on the first layer of wire, 1500 on the second, 1350 on the 3rd, etc. Here is a link to a manual for the 1700DC, with some specs: http://www.warn.com/works/dcwinches/images/868/73054CO.pdf Sounds like the 1700DC will be too large for your purpose. Another one from Warn to consider is the 1.5ci. Weighs 5.2kg. 1500lb pulling power on the first layer. http://www.warn.com/atv/winches/15_ci.shtml Manual for the 1.5ci: http://www.warn.com/atv/winches/images/541/69009A1.pdf The 1.5 has a 1.5" drum, 1.77" circumference, unloaded line speed of 15 feet/min, which should yield just over 100rpm with no load. You could also consider using a snatch block (backwards) to double pulling speed/halve pulling power. The 1700DC went for $170 on one site I found. The 1.5ci was priced at ~$250 on another site. Hope some of that helps, Austin ----- Original Message ----- From: "Gerhard Fiedler" To: Sent: Sunday, October 22, 2006 12:37 PM Subject: Re: [EE] Looking for 12VDC high-torque motor Austin wrote: >> everything I've seen was way too heavy, way too strong and most of it >> also way too expensive. But there probably are some in the range I'm >> looking for -- "just" a matter of finding them :)" > > ATV winches. > > One site I came across with a few specs: > http://www.gorillawinches.com Thanks for the pointer. What I saw was not encouraging, though... http://tinyurl.com/y84se9 : At $130 that could almost fit into the budget, 6 kg might be bearable. The data provided was not too extensive, other than that it is a 1 hp (750 W) motor. That is plenty for my application, actually quite an overkill. I found a bit more data for a sister-winch: http://tinyurl.com/upxjm : Here they have a load/speed table. I don't know the spool diameter, but I estimated with at least 10 cm. This gives an idle speed of max. 22 rpm -- which is too slow. Probably there are not many winches that are much faster: I'd need it around 80 rpm, four times the speed. Am I wrong with this estimation? Are there winches that rotate at 80 rpm? I don't have a lot of experience with ATV winches. Thanks, Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist