interesting trend with Wessel Werk nozzles

[n0oxy]

Was looking at the Wessel Werk web site, and they do appear to be responding to the trend of lower power vacuums in Europe. I'm not sure exactly how you design a nozzle to work best with these lower power vacuums, but several nozzles are apparently designed to work well with these vacuums. Being a blind person, I can't see what the nozzles look like, but I will post some links. First there is the RD 264.
http://wessel-werk.com/en/standard-nozzles/rd-264.html
Then we have the RD 265
http://wessel-werk.com/en/standard-nozzles/rd-265.html
Then there's the RD 277 which supposedly is designed for the low energy vacuums.
http://wessel-werk.com/en/standard-nozzles/rd-277.html
And finally, there's the RD 296.
http://wessel-werk.com/en/standard-nozzles/rd-296.html
Personally, I'm not really a fan of the carpet and hard floor nozzles that switch using a pedal. For carpet, you really need a spinning brush, and for hard floors, a dedicated hard floor tool will provide much better brushes.

 

[sebo_fan]

As far as I'm aware, Wessel Werk have been supplying different brands since the late 1960s (may even be earlier since the company came to be in 1931) with floor heads and dependent on the country, not all carpets need a rolling brush since some countries are a lot warmer than the UK.

Thin coverings for example would be easily sucked up into a beater bar than suction floor heads alone. Even before the EU law came in, Wessel Werk products were used by a plethora of brands.

Most low energy vacs are using Wessel Werk because for the most part the floor heads tick the boxes for carpet pick up or hard floor pick up. However, brands like Hoover Europe have done copies of Wessel Werk floor heads obviously to cut cost on paying out to kit with their cylinder vacs.

The floor heads by Hoover Europe under the "H-Lab" tag are made of cheaper plastics and in my experience they're not as good as Wessel Werk. I have two current Hoover vacuums by Hoover Europe; both are fitted with H-Lab floor heads and they're utterly rubbish.

 

[sebo_fan]

A lot of older Wessel Werk floor tools are just the same but with a different more modern hood. Only a few in the range are new from the ground up.

 

[eurekaprince]

I guess the primary design element that would help in performance is the shape of the suction "hole" on the bottom of the carpet nozzle. Many older carpet nozzles have a squarish rectangular hole. Whereas carpet nozzles with a narrower, longer air inlet may create higher airflow - just like a crevice tool has stronger airflow at its tip due to the narrow opening. Add some red velcro lint pickers at the opening and maybe two plastic "fibre scrapers" at the opening and performance improves even with weaker motors. Add some heftier weight to the nozzle, like Miele's "AirTeq" nozzle, along with large wheels, and the nozzle can maintain stronger pressure on the carpet fibres for improved pickup of deep down dirt. The wheels allow you to move the nozzle easily, even as the added weight keeps the nozzle in proper contact with the nap.

Stainless steel sole plates also help glide the nozzle over the carpet, and helps reduce friction as dirt slides over from the edges towards the suction inlet and into the nozzle neck and wand. Electrolux's "Dust Magnet" nozzle has an added feature that helps (though no stainless steel soleplate): the airflow chamber in the nozzle has springs that allow it to angle forward on the backstroke and backward on the foreward stroke...it really helps pick up dirt as the edge of the channel flicks the carpet fibres in the correct direction to cause dust and debris to be flung into the airflow. And it increases airflow as the opposite side of the chamber is lifted away from the rug surface.

 

[vacerator]

Canavac

offers Wessel Werke power heads with their central vac packages. Very good ratings.