The webinar Cavitation or Pseudo-Cavitation brought Rory McLaren to the table to expose one of the most destructive silent killers in hydraulic systems and show exactly how to tell the difference before pumps fail.
Relevant Training Systems
- Pump Cavitation Training System — The MF-200 fully transparent trainer that lets students see cavitation bubbles form and implode in real time versus the foaming chaos of pseudo-cavitation. Complete with adjustable inlet restriction, air-introduction controls, vacuum and pressure gauges, clear flow lines, and reservoir visibility so every student can practice establishing baselines, simulating faults, and learning proactive maintenance exactly the way it happens in the field on skid steers, loaders, and heavy equipment. https://daktic.com/product/pump-cavitation-training-system/
Rory took the MF-200 trainer and turned a complex fluid dynamics topic into something you can see, hear, and feel. He showed how true cavitation happens when inlet restriction gets too high — dissolved air comes out of the oil on the suction side, then the bubbles hit high pressure on the pump’s pressure side and implode with tons of force per square inch, blasting metal fragments downstream and turning the tech into an unwilling farmer of contamination. Then he demonstrated pseudo-cavitation from air leaks or bad reservoir design, where the oil turns into foam that can’t transmit power, lubricate bearings, or carry away heat — making it exponentially worse for the whole system. Students watched the exact moment things went wrong, heard the distinctive noise of imploding bubbles versus the quiet foam buildup, and learned the simple field test of checking inlet vacuum (no more than 8 inches of mercury for gear pumps at operating temp) to catch problems early.
The beauty of this trainer is how it makes the invisible visible. No more guessing why a pump died or why the system lost performance — students establish a point of reference, introduce a plugged screen or a loose fitting, and immediately see the pressure drop, temperature rise, and performance crash. In construction, agriculture, and mining where one failed pump can idle a whole fleet, this hands-on approach produces techs who prevent failures instead of replacing parts after the damage is done. It’s the kind of training that pays for itself the first time a student spots a suction restriction on a real machine and saves the day.
Ready to build an industry-driven training program around hydraulic systems and fluid power technology? Request a consultation with a DAKTIC representative at [email protected] to get started.