Hydraulic Liftgate: Find Optimal Cylinder for 90° Rotation

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The discussion focuses on selecting the appropriate hydraulic cylinders for a liftgate conveyor system that requires a 90-degree rotation of a 500-pound section. Key considerations include the positioning of hinge pins and cylinder ends, which are critical for sizing the cylinders effectively. The proposed setup involves a two-stage system with a 3hp motor capable of delivering 1500-3000 psi. Participants emphasize the necessity of ensuring that the cylinder can rotate slightly during operation. Accurate specifications of hinge and cylinder pin positions are essential for determining the optimal hydraulic solution.
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hydraulic requirements for liftgate actuators/cylinders
Hello everyone and thanks for any and all feedback!
I am looking for help with a hydraulic system for a liftgate conveyor I will be installing for a customer. The conveyor is 10" in length and 3' wide but the liftgate portion is only 7' long. The approx. weight of the 7' section 500lbs. My questions is what hydraulic cylinders would i need to rotate/lift the 7' section 90 degrees?

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What hydraulic pressure will always be available.
The position of the pins at the hinges and cylinder ends will be critical.
The cylinder must be free to rotate slightly during operation.
 
Im thinking a 2 stage, 3hp 1500-3000psi set up
 
kore52 said:
Im thinking a 2 stage, 3hp 1500-3000psi set up
So you always have 3000 psi available ?

Where is the hinge pin relative to the frame and moving belt ?
 
Baluncore said:
So you always have 3000 psi available ?

Where is the hinge pin relative to the frame and moving belt ?
I don’t have a pump picked yet but I can have whatever is needed. The hinges are in the side of the frame and I will mount the cylinder/s below and inside the frame rails of the conveyor
 
kore52 said:
My questions is what hydraulic cylinders would i need to rotate/lift the 7' section 90 degrees?
You must first specify the position of the hinge pin and the cylinder end pins.
Only then can you size the cylinder.
 
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