Quote:
Originally Posted by bigford
i think you bought the wrong Firgelli's. as my lowboy dead lifts the kat excavator
and cooper's 4 Firgelli's lift the d11 and trailer off the ground and brian's haul truck
had a full bed of moist topsoil in it.
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Hi Bigford, I bought 2x L-16S-63:1-140 for the blade, 4 x L16S-150-50 for the ripper and a L-16S-150-100 for tilt. These are the most powerful they sell - I can't see how they be the wrong ones? I sent drawings to Firgelli showing lift angles, weight of blade and ripper, all measured with a digital scale. They sent the drawings to their tech dept who came back with the response that "it should work nicely" before I bought them. Five have failed and it hasn't hit the dirt yet. The blade requires a pull of 6kg 13.2lbs and the ripper measures 22lbs at its lowest point over-center. There's no doubt they can do the lifts so you are correct there, they can. But the actuators themselves cannot structurally support the load/pulls that they can achieve - in my case.
Actually with starting this thread I was hoping we could look at the specs of the new type and come to some conclusions regarding their suitability (or not) for our builds. The new ones look similar to Firgelli's. I'm probably gonna build my own actuators. I ordered some high-power 150:1 micro-motors with gear boxes today, gonna see if I can mount them in some 18mm dia aluminium outer tube with an inner using acme or yankee screwdriver shafts.