03-18-2015, 07:19 PM
Im sure you already though of it, but a single cylinder is going to give you different forward and retract speeds. Almost need to go with two cylinders acting with each other or a double rod cylinder to over come this.
Just throwing out ideas, could you use a chain or cable drive to compound the stroke of the cylinder or cylinders, like whats used in a car hoist. 4 foot stroke 8 foot raise.
A variable displacement pump would let you set your stroke speed.
If you go with the existing drive, I'd keep it mechanical, but I hate the sound of hydraulic pumps and motors.
Just throwing out ideas, could you use a chain or cable drive to compound the stroke of the cylinder or cylinders, like whats used in a car hoist. 4 foot stroke 8 foot raise.
A variable displacement pump would let you set your stroke speed.
If you go with the existing drive, I'd keep it mechanical, but I hate the sound of hydraulic pumps and motors.
Free advice is worth exactly what you payed for it.
Greg
Greg