No, the cap has no effect on the motor speed.
What speed is it rotating at (should be about 15 rpm or 4 secs for a
single complete rotation)?
Is it the original motor?
You might be able to change the size of one of the pulleys to get a
You can see what size it is originally supplied with:
I'd have asked exactly where it was made and what for exactly.
Is it an induction motor or a brushed on. There may well be some wiring
that is configured for the motor which is wrong. Seems a little odd to me if
its as new.
More likely a new, and incorrect motor pulley or something like that, I'd
This newsgroup posting comes to you directly from...
1. Change the motor pulley for a smaller one or the drum pulley for a
2. Check the motor speed on the rating plate, it should probably be
1425'ish RPM but perhaps someone has replaced the motor with a 2800'ish
3. Sell it and buy another
On Sunday, 24 May 2020 00:14:03 UTC+1, david wrote:
There's only one possibility. Someone has fitted the wrong motor.
It's an induction motor, the smaller ones commonly run at either 1480 rpm or 2800rpm. (ish, ie a bit less than synchronous).
They come in standard sizes/frames/shaft diameters
BTW make sure the gearbox has oil, they don't last two minutes without.
If there's a lot of play in the gearbox, (twiddle the drum) may not be worth repairing.
Do you need an exploded parts diagram ?
There's no variable speed drive on the thing.
I don't see a way to adjust it, via some control knob.
The motor is an induction motor, with a starter capacitor
strapped to the side of it (25uF for 230V model). The wiring
is not suggestive of "speed options", as you get on a
central heating ventilation fan (which has four taps for speed).
The electric motor runs at one speed (with "slip" as a
function of loading).
The beauty of the Belle documentation, is figuring out
what you own, and what diagram might pertain to it.
There's apparently a gasoline version (after market?) of that
thing too, as well as the notion of electric drive. And
multiple model years, all hiding under the same SKU, making
picking parts for it, a nuisance.
I could also find an example of a metallic worm gear for that
thing. But there's no sign of that in the diagram above.
The above has two levels of gearing.
Belt #46, wheel #45, cannot see pulley for other end of belt.
Gear #34, ring gear 15 on drum.
Because of the ratios and sizes involved in those, I
don't see home-retrofitting being a viable option. You
probably cannot reduce the tooth count on Gear #34 without
making it non-functional. And wheel #45, it might not fit
if you were to increase its diameter a large amount. It
would end up too big for the housing 4.
You could try looking for an induction motor with
a different pole count. But I don't remember any "bargains"
for motors the last time I looked.
I would try the after-sales support at the manufacturer,
for advice on changing the speed (with a parts change-out).
And only go to the small electric motor shop, as
a last resort. The motor purchased that way, might
well cost as much as the entire cement mixer (depending
on how obscure it was). The pricing doesn't have to make sense.
Sometimes, you can find an electric motor you want,
but the shaft size is wrong, or the shaft is keyed,
or the shaft is the wrong length. Some of these things
can be fixed, but again, at a price.
If you change the shaft speed, the forced air cooling
velocity inside the housing will be reduced. For whatever
that is worth. Motors come with various ventilation
There isn't that much room for the electric motor in this case.
You couldn't play the market for an "open ended" solution, like
say, a motor with twice the power, but occupying a larger volume.
This isn't the same model, but it shows how complicated
they can make their exploded diagrams. This larger model
has several powering options. The diagram, again, shows
no evidence how the powering options are called out
(from a model numbering perspective).
On Tuesday, 26 May 2020 18:53:00 UTC+1, Paul wrote:
itor would it
gal speed regulator is not working. (More likely to apply to historic equip
ement mixer ever made I might believe you.
The diagram shows both pulley/belt and ring gear. The ring gear is not goin
g to be practical to increase the ratio of. The pulley I can't see if you c
an get a smaller one onto the motor, if you can that would slow it some. I
don't know what sort of speed reduction results from charging the thing wit
h mix. Baby belle mixers aren't a type I'm familiar with.
In the end, if it's capable of turning at all with mix in, then it can be s
lowed by other simple means, but I'd definitely start by
a) checking speed when fully loaded
b) gearing it down with a small motor pulley as far as possible.
Once those are done, a pulsing driver or VFD would slow it further. But it
would also reduce the motor's cooling fan speed, and that would need a work
around, ie a separate small high speed fan. A slower motor is the other opt
I'm a bit more familiar with much older mixers, but not a lot.
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