Moto Monster too weak - any alternatives?

Hi

I had to find out the motor driver "Moto Monster" is too weak (or the winches too strong, it does not really matter...). The practical continuous current is 14 A, the max. 30 A. My system needs ~ 20-25A. Very hard turns of the motors are too much so the motor driver stops to prevent any damage.

https://www.sparkfun.com/products/10182

As an alternative I got informations about the Sabertooth 2X60, it can supply two DC brushed motors with up to 60A each. Peak currents of 120A per channel should be achievable for a few seconds. The Sabertooth is Arduino compatible.

https://www.dimensionengineering.com/products/sabertooth2x60

Thank you - any suggestions and comments are welcome

PS: I hope it is not the wrong forum...

Hi!
Sabertooth is designed to send back current to battery when motor is turned into a generator under load:
follow their advice "Use a battery or at least put a battery in parallel with a DC supply."

OK, so no chance for a 60A+ motor driver (no DIY board)? I do not mean the china sh** from ebay...

This one?
http://www.aliexpress.com/store/pro...mart-Car-Strong-Braking/325585_709407235.html

Hi @Pit , The sabertooth can be used in either analog or serial modes with an arduino and the proper code. I believe some code has been posted previously for serial mode from ericRacer but I'm not positive.
I don't understand you're last two post though! You said you don't want china shit from ebay but yet you linked to china shit! It's just not thru ebay! Whats the difference in where you get it from or did I misunderstand something?

Not all of China is shit, I ask for moto monster alternatives, what else. My English is not the best so sorry for being irritated about my request.

Agreed! It’s more about the design and manufacturer than it is about what country it comes from! But I don’t know how to tell the difference between shit and a diamond when it comes to electronics (other than specs) until I try it myself or someone else does whose opinion I value! So just because it’s from china and its on ebay in and of itself doesn’t necessarily mean its a bad product even though they do push a lot of crap there! Thanks for the reply and I’m not irritated, only curious!

@Pit , what winches are you using?
I know that @eaorobbie ran winches on a full frame with JRKS for years with no problems and got really harsh motion.
Also @AldoZ , whom is not active ran 3 900kg rated boat winches on a 3DOF lift style platform with JRKS and again no problems.
And with stuff from China, there is licenced and properly built product as well as cheaper alternatives.
I was shown a $15 JRK copy, it had solid state relays, not mosfets, and switched at 50ms, not 1ms. There can be alternatives and we all have to be cautious of what we buy.

@Pit, I haven't used this myself but the following post looks pretty good... Perhaps ask in that post who has used it and how it runs.

High power speed & direction DC motor controller using N-MOSFETs

http://www.ricardo.ch/kaufen/buero-...rlan-12v-elektrische-seilwinde/v/an731328482/

Last but not least @value1. His configuration is quite similar

If I would buy an jrk I will buy an original one, they are really expensive but IMO worth the money.

genuine jrk for sure, worth the cost

Wow, really interesting but it is all technically complex and something for my next live (perhaps...)

Hi Pit, I am surprised that you are having issues with the Chinese Moto Monsters. I use two on my rig and my winches are tossing around 500lbs of weight (me@350LBS, three 32" TVs, a dozen controllers, steel frame, etc etc.).

True, it could be the winches that you are using, mine are the more conventional multi-gear type while yours is a planetary gear type but still surprising.....

EDIT: One Chinese Moto Monster (CMM) for Axis 1 and Axis 2 while the other CMM pushes the traction loss winch.