PaulC 341 #1 Posted October 22, 2014 I am wondering if anyone can help me out with specs on an actuator for electric lift. I have done some extensive searching and have most of the specs but im wondering if anyone knows the proper force rating? Here at work we have found an actuator manufacturer that has some pretty good pricing so I found two options through them. specs I know 12vdc operation 10" center to center retracted 12" center to center extended the actuators I found have the first two requirements but both have a 3" stroke so they are 13" extended. My initial thoughts are that the extra inch in stroke would not be a big deal because its ran by a momentary switch anyway so just stop when its up high enough actuator 1 well call it has 400lbs force and 2/5" per sec speed when loaded and a very favorable price of $129 actuator 2 has 1000lbs force and 1/8" per sec speed when loaded and is $219 found in a post someone used or referenced a warner actuator that has 1200lbs force and 1/2" per sec speed but price I found for that one on ebay was just shy of $400. this may turn out to be wasted thought and time but im trying to find a somewhat inexpensive way to add lift to my 312-A with the eaton 700. fire away with your thoughts thanks Paul Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,496 #2 Posted October 24, 2014 Have often wonder this myself. Have never had a hydro model but if I did it would be easy to figure out the designed force. Hydraulic cylinder piston area calculated using diameter minus the rod diameter calculated area = effective square area x hydraulic pressure developed by the pump = force applied. Anyone know the hydraulic cylinder piston and rod diameters? I believe the pump pressure is listed in the transmission service manuals. Garry Share this post Link to post Share on other sites
PaulC 341 #3 Posted October 24, 2014 I have a hydro with the eaton 1100 so it has hydraulic lift which is how I know how great it is. I could measure it but without actually opening it up I wouldn't be able to get the proper measurements. The size of the rod and the o.d. of the cylinder wouldn't tell us much. We need to know the o.d. of the piston and the i.d. of the cylinder so we need to find a drawing of that actuator or someone who has one opened up. That warner actuator with 1200lbs of force seems high to me? but maybe not my snowblower is a bear to lift with the manual lever. the actuators I referred to in my OP are not the proper configuration which I noticed after but I did find some others in the $200 range. knowing the absolute minimum force we could get away with would really help in narrowing down the cheapest option. thanks for your reply Garry Share this post Link to post Share on other sites
bmsgaffer 2,043 #4 Posted October 24, 2014 I am assuming the bore is 1.5". I dont have one close to me to measure, but that would put its push force a about 1237lbs. I havent had one apart so rough measurements will have to just get us close. Share this post Link to post Share on other sites
PaulC 341 #5 Posted October 24, 2014 Well Brandon Im thinking your assumption is probably pretty close which fall right in with the specs of that warner actuator. Some of the less expensive actuators I have found have a push force of 1000lbs but they are still about $250 so I don't know if it would be worth the risk? Pretty cool that my horse allows me to lift 1200lbs with 1 arm and I definitely don't resemble pop eye Share this post Link to post Share on other sites
bmsgaffer 2,043 #6 Posted October 24, 2014 Well Brandon Im thinking your assumption is probably pretty close which fall right in with the specs of that warner actuator. Some of the less expensive actuators I have found have a push force of 1000lbs but they are still about $250 so I don't know if it would be worth the risk? Pretty cool that my horse allows me to lift 1200lbs with 1 arm and I definitely don't resemble pop eye Haha yea! Though I've heard the manual lift people (I have been one) even with the mechanical advantage sometimes get thicker left arms Actually the 1200lbs of force is right at the cylinder. If you look at the mechanisms, you can tell that the wheel horse engineers had to give up some mechanical advantage. If you look at all the levers and fulcrums, they trade the small space available for length of stroke for total lift capability. (short lever on cylinder, longer lever on rockshaft) I'd be curious to see what the actual lift capacity of the system is right at the rock shaft... Share this post Link to post Share on other sites
