Mafell cordless groove-cutting machine NFU 50-18

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Frnk

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Official premiere is Dach+Holz, a trade show in Cologne, Germany, February 24–27.

It's the cordless version of this machine:



And here's a German unpacking video:



More details are available on Mafell's website.
 
A few years down the line there will be whole categories of tools that were corded once and will be /only/ available as cordless moving forward. I suspect that pretty much all of the non-continuous-use building industry power tools will go in that direction.

The only ones to stay corded will be the energy suckers where a battery just cannot cut it by definition for anywhere close to a work day.
 
mino said:
A few years down the line there will be whole categories of tools that were corded once and will be /only/ available as cordless moving forward. I suspect that pretty much all of the non-continuous-use building industry power tools will go in that direction.

The only ones to stay corded will be the energy suckers where a battery just cannot cut it by definition for anywhere close to a work day.
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I haven't seen the video yet so don't know about run times or efficiency, but I'm guessing that Mafell grooving saw must just about be in that energy sucker class, that's a lot of power required to run that head through thick timber?
 
luvmytoolz said:
I haven't seen the video yet so don't know about run times or efficiency, but I'm guessing that Mafell grooving saw must just about be in that energy sucker class, that's a lot of power required to run that head through thick timber?
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Well, how many beams do you expect to groove per day? One? Two, Ten? And how much time do you spend preparing those beams to be grooved. An hour, 30 minutes .. etc.

Compare that to a vac, the RG 130 or an angle grinder or even a mixer which are employed at 100% load for hours on end in the building sector setting...
 
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mino said:
Well, how many beams do you expect to groove per day? One? Two, Ten? And how much time do you spend preparing those beams to be grooved. An hour, 30 minutes .. etc.

Compared that to a vac, the RG 130 or an angle grinder or even a mixer which are employed at 100% load for hours on end in the building sector setting...
Click to expand...
I would have thought the main use of the saw to be for stairs? That'd be a lot of grooves if so.
 
luvmytoolz said:
I would have thought the main use of the saw to be for stairs? That'd be a lot of grooves if so.
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Not sure upside down, but in Europe stairs are usually prefabricated concrete and/or pre-prepared in a shop on a CNC when wooden. There are exceptions for small single-home builds, but then there would not be many stairs to do.

Note for US friends:
Large-scale "housing" complexes with uniform houses are just not a thing here. Those few which exist rarely use such inefficient/labour-intensive methods as using custom stairs on a per-house basis.

These types of tools are for ad-hoc use where the item is either too big to handle efficiently at a shop or is a one-off measured only on the site. Stairs could fit that, but mostly do not. /here/
 
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