The DC 3800c Twin is a portable but very powerful dust extractor suitable for large quantities of dust due to its integrated pre-separator. It is particularly suitable for concrete grinding since 80-90% of the coarse materials are separated in the pre-separator. The remaining dust goes into the filter cyclone. The 3800c Twin is a popular machine since it is powerful enough for most applications yet it can be easily moved and transported. The air flow capacity is suitable for concrete floor grinding machines with a diamond disc diameter of up to 20" (approx. 800 mm).