I'm a bit confused re where the extra speed is coming from, ie a different number of threads per inch in the screw, or more efficient motor, etc, etc? Looking at the specs, the
HD model uses less current, making me think it must be geared lower and slower, but maybe the motor is more efficient. If gear ratio, I used to read posts from people with some brand of
actuator, who were complaining about a trade-off with respect to speed, in that their actuator was geared faster, which resulted in fewer pulse counts, which meant poor resolution when trying to peak on a sat, since one pulse click might take you past the peak. Ie in some respects slower might be better.
Also interesting that it says that there is both a 36V and 24V version. Most of these actuators will work fine on any voltage, ie I used to run mine manually with a 12V car battery. It just runs slower on 12V. But for the same reason as above, I'm wondering if the gear ratio is different in the 24V version, in order to make them faster?
I assume, due to the low volume likely, that Sadoun will only have the 36V version, and I also assume that for the same reason, the "mini" versions won't be available. Those MINI actuators look interesting, for other applications.