The motor design is very reminiscent of the Rexair Rainbow D Series as it moved the air the same way, those motors were quite large too. The biggest physical sized motor of the Rainbow series would be the D4 with fans that are 7 inches or roughly 17 cm in diameter. The motor was still similar to previous D3 upside down bypass designs with baffling at the bottom to hold the lower bearing as there were three in that machine. It didn't rotate at the velocity of your nilfisk and had kind of a baritone sound when running.
Difference is huge compared to the shark motor. Shark motor runs extremely high rpm, it runs hot and it is very noisy. Nilfisk motor runs much slower rpm and it also runs much cooler than the screamer motor in the shark. Here we see big contrast between the two motors. Performance difference is big, but most importantly the lifespan with cool running high quality Nilfisk motor versus the low quality high rpm shark motor is huge.
That is a huge motor 😁 I think the latest model is the GM80c. Very well built vacuums very powerful don't think the filtration is the best though.Unless it's F rating is carbon dust escaping?
When I opened this first time I was shocked :D Later I discovered that the type GMI (I in it) means industrial. You can get the hepa filter for it, but it's not very pretty looking: www.airfilterstore.com/nilfisk/images/gm80big.jpg
Vacuumtests Yes it's looks very good. Very good ratings for pick up and HEPA 14 for filtration. You don't see that very often. Miele is Hepa13 still very high standard but Nilfisk go even higher 😊
When I managed a country club some thirty years back Nilfisks were well within budget and I was tired of hearing screaming Sanitaires. It was one of the few things that the members were actually greatful about.
bonjour , je possede un aspirateur nilfisk GM80 jai changé le moteur , mais jaurais voulu pour le remontage le schema electrique , pouver-vous me mettre avec photos bonne fin de journée cordialement
