Insane Hydraulics

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News Archive

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28 September, 2025

Kawasaki K5V80DTP Failure With Mysterious Wear Patterns


21 September, 2025

A Garbage Truck's Tale: The Case of the Creeping Cylinders


14 September, 2025

A Surprise From Sun Hydraulics (and Not a Good One)


7 September, 2025

Project Super Gauge - Testing the New Interface


31 August, 2025

Graphic Displays in Digital Pressure Gauges


24 August, 2025

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


17 August, 2025

Did You Know Your Digital Pressure Gauge Could Do This?


10 August, 2025

Adding another seal kit to the collection - List of Seals for Rexroth A11V(L)O130-145 Hydraulic Pump


03 August, 2025

Pressure-Testing Pump Controls Separately From Pumps


27 July, 2025

Perfect O-Ring Grooves Every Time!


20 July, 2025

A Breeze of Fresh Air... With Hydraulic Troubleshooting


13 July, 2025

Project Super Pressure Gauge - Connecting to a Proper Pressure Transducer


06 July, 2025

Hydraulic Balance of Piston Slippers


29 June, 2025

Eight Embarrassing Mistakes You Will Make as a Hydraulic Technician


22 June, 2025

These Numbers May Be Useless, But You Should Know What They Mean Anyway


15 June, 2025

Battle With a Viking


8 June, 2025

Super Pressure Gauge Project - Trying Out ADC Boards


1 June, 2025

"Mystery Cartridges" are Lessons in Disguise


25 May, 2025

A presentation of a spectacular motor failure, an explanation of an interesting phenomenon, and a request to the audience, in Segment Valve Tipping in Bent-Axis Variable Displacement Motors.


18 May, 2025

Danfoss H1 Bent Axis Motor Hydraulic Proportional Displacement Control Actuator is Different.


11 May, 2025

Super Pressure Gauge - ADC PCB Layout


4 May, 2025

I have two Rexroth A6VE topics for you today - a DIY Acessory for Reading Pressure in the Flange-Face-Located Brake Release Port of a Plug-in Motor, and a List of Seals for Rexroth A6VE55HZ3/63 Hydraulic Motor.


27 April, 2025

Super Pressure Gauge - Choosing the ADC and Designing the Circuit


20 April, 2025

Elegant Directional Solution from Enerpac


13 April, 2025

Welcome to the Project Super Pressure Gauge