Insane Hydraulics
Bold and audacious blog about fluid power
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A Surprising Find in a Parker V14-160 Hydraulic Motor
True AC, Fake AC and Super-Fake AC Solenoid Coils
Legacy Steering Valve Design (With a video at the end!).
Another Hydraulic Cylinder Gland Nut Spanner Wrench Made From Scrap
I believe that studying designs of cartridge valves is important for hydraulic technicians because it arms us with a unique knowledge of how they function internally and, consequently, allows us to imagine the ways they can fail, which is invaluable when diagnosing hydraulic equipment that employs such valves. So, today I invite you to look at the beautiful design of the pilot-to-close, balanced-poppet cartridge from SUN Hydraulics in this short back-engineering session: Let Us Balance a Poppet.
Cutting Spools May be Trickier Than It Seems
About Fast but Slacked Pump Repairs and How to Avoid Them
Kawasaki K5V80DTP Failure With Mysterious Wear Patterns
A Garbage Truck's Tale: The Case of the Creeping Cylinders
A Surprise From Sun Hydraulics (and Not a Good One)
Project Super Gauge - Testing the New Interface
Graphic Displays in Digital Pressure Gauges
A friend of mine needed to manufacture a custom 4'' SAE flange the other day, and when he asked me to help him with the dimensions, I discovered that while things like the external diameter and the width of an SAE flange were easy to find, the recommended profile for the o-ring groove, among other things, required some "digging." Since I enjoy creating custom reference materials, I developed a small web app specifically for this purpose - it contains an interactive drawing with dimensions for heads of flanged connectors. You can download the drawing of the chosen type/size in a crisp PDF format by pressing the button under the drawing, and you can add a note to the downloaded file by filling in a text field. The drawing also contains useful references - the recommended o-ring size and maximum working pressure. So, without further ado, I present to you the Recommended Dimensions for Heads of ISO 6162-1/2 (SAE J518-61/62) Flange Connectors
Did You Know Your Digital Pressure Gauge Could Do This?
Adding another seal kit to the collection - List of Seals for Rexroth A11V(L)O130-145 Hydraulic Pump
Pressure-Testing Pump Controls Separately From Pumps
Perfect O-Ring Grooves Every Time!
A Breeze of Fresh Air... With Hydraulic Troubleshooting
Project Super Pressure Gauge - Connecting to a Proper Pressure Transducer
Hydraulic Balance of Piston Slippers
Eight Embarrassing Mistakes You Will Make as a Hydraulic Technician
These Numbers May Be Useless, But You Should Know What They Mean Anyway