Converting from air cylinders to ???
Converting from air cylinders to ???
(OP)
We currently have a testing apparatus which is powered by an air cylinder. This apparatus operates in temp ranges from -40C to 85C. This system pushes a rack at a speed of approximately 0.13 ft/s.
When using this apparatus in the cold temp environment, the valves must be opened up all the way and this is difficult to do considering the configuration. Does anyone know much about electronic acutators for this type of application??
Thanks,
Chad
When using this apparatus in the cold temp environment, the valves must be opened up all the way and this is difficult to do considering the configuration. Does anyone know much about electronic acutators for this type of application??
Thanks,
Chad





RE: Converting from air cylinders to ???
Barry1961
RE: Converting from air cylinders to ???
RE: Converting from air cylinders to ???
www.intelligentactuator.com
there are others on the market for pre-packaged electronic linear actuators, but these two come to mind. That -40C may be a little tricky, tho
TygerDawg
RE: Converting from air cylinders to ???
I did an application like this testing the pull of a vent cable in a car. The gearmotors smooth operation was a great improvement over the air cylinders jerky motion.
Barry1961
RE: Converting from air cylinders to ???
Chad
RE: Converting from air cylinders to ???
John
RE: Converting from air cylinders to ???
Jsummerfield: I don't think that spring loaded pneumatic actuators would work in this situation since they are dual acting cylinders where we use a flow control to adjust the rate of travel in each direction.
Chad
RE: Converting from air cylinders to ???
RE: Converting from air cylinders to ???
The -40°C operating torque of our parts is 28 oz-in. With 16 parts installed on our test fixture, this places the force required to move the table around 90 lbs. At 85C this force is reduced to 36lb. These are only approximated forces.
The maximum travel of our text fixture is 8", but we normally only use 2-3" and use end stops to limit this.
Does anyone have any suggestions regarding the hp and rpm rating of the gearmotor that we try out?
RE: Converting from air cylinders to ???
RE: Converting from air cylinders to ???
RE: Converting from air cylinders to ???
So far this has worked for us and other machine builders in the same industry.