Fluid Power Journal

Problem: Standard Size Cylinder 2

Deadline Past. Not Available for Submissions. Winner: Mike Stoltenow, CFPS, Comatrol, Easley, SC Answered Correctly: Edward Day, CFPPS, Norgren, Inc., …

Spur Gear Pump Displacement

So you need to replace an unlabeled external gear pump originally sold by Cro-Magnon Hydraulics during the First Crusades, and sadly you have no idea of the …

Wear Band Materials and Pressures

Phenolic wear bands were a mainstay in hydraulic cylinders, however due to the formaldehyde content, they have largely been replaced by glass-filled nylon. If …

Problem: Sheet Metal Shear

This month’s problem is to convert a manually operated sheet metal shear to operate on pneumatics. Looking at the diagram, you will see the placement of the …

Problem: Standard Size Cylinder

The figure shows a door to open with an air cylinder pushing at a 45-degree angle. The door is 48 inches high and weighs 100 pounds. It needs to open 90 …

Vacuum Assist to Lift Single-Acting Vertical Hydraulic Cylinders

For discussion purposes, we will assume the cylinder is 4 inches in diameter, the rod is 2 inches in diameter, and all math figured here is approximate. This …

Telescopic Cylinders

The single-acting telescopic cylinders have been engineered with machined hard stops to guarantee reliable stopping at the end of every stroke. The bore size …