Insane Hydraulics

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News Archive

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10 October, 2017
My newest take on the use of Suction Filters in Hydraulic Systems, explaining, among other things, their biggest advantage, namely, their ability to serve as perfect "slacker tell-tales".

14 September, 2017
I re-read my earlier post on cavitation, and realized that it needed editing. One thing led to another, and I ended up re-wring the complete article, with higher definition examples and a more details, including my personal take on the subject. So, here it is - Cavitation in Hydraulic Systems.

21 August, 2017
A discussion between two hydraulic techs I overheard the other day led me to once again consider certain "peculiarities" of application of pilot-to-open check valves on differential area cylinders. In my search for a better and more graphical representation of the problem I came up with the following interactive page - Cylinder Mounted Pilot-to-Open Check Valve Interactive Pressure Chart. I was actually going to compose an article on the subject before uploading the script - but hey, since the code is already (more or less) done, I might as well put it up for the public's appreciation. Do tell me if the script doesn't run (you will need a modern browser with javascript enabled to visualize the page properly). The detailed article on the topic will be coming out shortly.

25 July, 2017
As I was going through the painful process of recoding the pages to the new HTML5 format - an old post on Hysteresis brought a smile to my face...

9 July, 2017
A long-due explanation for the Five Years of Silence

15 June, 2017
First "real" update in five years! It's about time... But before any actual oil-hydrauics posting can happen, I have to do some serious "remodelling" around here, i.e. replace the outdated static design with something more adaptive and mobile-friendly, which is a gargantuan task, given the fact that I did everything wrong when I created the blog with a free visual editor and zero knowledge of HTML. But it needs to be done, and it will be done. I'm starting with the home page, and will eventually "grind" through the rest of the site. Should anyone catch any "funny looking business" in the browser, please, shoot me an email describing it - I'll do my best to correct the errors. Also - older browsers might not display the new code correctly.

18 November, 2012
InsaneHydraulics is back online! I would like to thank all the followers of this blog for the support expressed in emails! Your feedback keeps this site going! So, without further ado: Shaft Seals and Drain Lines - Anything in Common?

19 August, 2012
The reason why I've been offline for all this time is simple - we are expanding our business to the Sothern part of Portugal,and I have but two months to set up a functional warehouse and a workshop - way too little time if you ask me, so I've been working 24/7, and yes - no vacation for me this year... Still managed to add three more links to the article on Aftermarket Spares: A6VM Pistons, Seal Kits, and NG10 Valves

28 July, 2012
An article on Sauer Danfoss series 90 pumps troubleshooting, which also gives you a "heads up" about the "dangers of wrapped filters"... - One Troubleshooting Story

2 July, 2012
Are Orbital Motors the Best Choice for Static Torque Applications?

21 June, 2012
A Farewell to an Old Friend

6 June, 2012
External Gear Motor Stall

16 May, 2012
Post about Flatheads gets a small add-on

13 May, 2012
A story of how I once attempted to Straighten Out a Crooked Barge

22 January, 2012
More examples added to the post on Aftermarket Spares

7 January, 2012
Three more links unlocked in the article on aftermarket parts - Swashplates, A6VM Valve Plate, and Komatsu Parts

30 December, 2011
Aftermarket Spares - Thoughts and Examples (with more examples coming next year)

22 December, 2011
I apologize to all devoted readers of the for "being absent" this month... A lot of things happened in my personal life (including me moving to a bigger apartment) during the last four weeks, so the blog activity had to slow down. At this point I am cooking an article about non-original spare parts which will, hopefully, come out before the end of the year. In any case - I would like to use this short break to wish you all Merry Christmas and a Happy New Year!!!

8 December, 2011
The Story of a Luggage Conveyor

26 November, 2011
And Now Let's Try This WITHOUT a Thrust Plate...

20 November, 2011
The question "Can an axial piston pump work with one piston missing?" is answered in Baldest Pump Overhaul Ever

12 November, 2011
Can Flow Tests Predict Life Spans?

30 October, 2011
The IH is back in business!!! I spent the last two weeks fixing raise-boring equipment, which left me no time for updates... But I am still alive and kicking, so here's a couple of words on "bogus" failures in Closed Loop Bypasses

11 October, 2011
The Mystery of Missing Teeth

3 October, 2011
A couple of tips about Making Small Diameter Orifices