Machine Screw Jack
Machine Screw Jack
(OP)
I am looking for a small hand-operated machine screw jack (or linear actuator) type device. I only need about 6 inches of travel, the unit needs to be compact and able to lift approximately 50 lbs. I know there are a lot of motor driven actuators out there but this needs to be hand-operated. If someone could point me in the right direction it would be appreciated.





RE: Machine Screw Jack
Depending on your speed and positional accuracy requirements any of the following could work:
Rack and pinion, Acme screw, ball screw, pneumatic or hydraulic cylinder with hand pump, cable, drum and pulley, timing belt.
RE: Machine Screw Jack
Griffy
RE: Machine Screw Jack
TTFN
RE: Machine Screw Jack
RE: Machine Screw Jack
TTFN
RE: Machine Screw Jack
RE: Machine Screw Jack
Best Regards
pennpoint
RE: Machine Screw Jack
RE: Machine Screw Jack
RE: Machine Screw Jack
RE: Machine Screw Jack
Depending on the configuration of the "universal joint" mentioned in the OP's second post, it could serve as the third point.
RE: Machine Screw Jack
RE: Machine Screw Jack
"Little Giant" Jack Screws
No. 190 Series 2 1/4"-3 3/8" (57-85 mm)
No. 191 Series 1 1/2"-2 1/4" (38-57 mm)