Lexicon DIY-Knowledge

Lightweight construction


Construcción ligera

Constructions légères

Lightweight construction methods have gained acceptance over the past few decades. The use of modern materials like aluminium and plastic has yielded excellent results. The power-to-weight ratio is the key value here.

                       delivered power P2 (W)
Power to weight ratio=                       
                       machine weight (kg)

The power-to-weight ratio of for example an angle grinder is:

                       2000 W
Power to weight ratio =        = 476,2 W/kg
                       4,2 kg