Sail Winches

Rcsailing.net General Discussion
1

Don’t know how many of you have come across this one -

http://www.servodatabase.com/servo/graupner/sailwinch-4

but from this site & many others (including the Graupner site) I don’t seem to be able to find a torque rating. Has anyone got this winch (or seen a site that quotes the torque numbers) and are therefore able to share the required information?

Look forward to hearing from anyone,

Regards,

Row

2

http://www.rcgroups.com/forums/showthread.php?t=1548452

http://www.sailservo.co.uk/pdf/prod%20spec.pdf

Might find some comparisons here, but I wasn’t able to find torque ratings on any specification site. Maybe because you can change drums which could impact torque depending on drum diameter ?

3

Well, I know this winch as a pre-millenium winch,
and a very loud one :wink:

It has got a self locking ‘planetarium-gear’, so lots of standing torque.
The stall torque depends on the drum diameter and the used voltage.

I used some of those (Graupner Type 2 and some similar from Multiplex) during the 90’s until 2005 and now I am happy with arm winches.

Those Grauper sail winches type 1 to 4 have same mechanics, only the electronics have changed and type 4 shall have a new motor. The older ones have had a motor like a mabuchi 380 or similar.

that stall torque 4.6 Kg.cm should be for a 29 mm drum at 7.2 V
for a 9 mm drum, the stall torque should be around 10 Kg.cm
(second sail winch 4 row at that sheet)

I got some old sheet from my pre millenium winch from multiplex

4

Have you seen this?

http://www.mxcomponents.com/it/winches-drums/77-s300-winch.html

I have just order it and I will know about it when I try it.