SA-CR6900 Machine yokhala ndi kusintha kwanzeru digito, kutalika kwa tepi, mtunda wokhotakhota ndi nambala yokhotakhota ikhoza kukhazikitsidwa mwachindunji pamakina, kukonza zolakwika kwa makina ndikosavuta, chingwe cholumikizira waya, zida zomangirira, kudula tepi, kupiringa kwathunthu, kumaliza mfundo yokhotakhota, makina otsala kukoka waya kwa kuzimata kwa matepi ena, oyenera kukulunga ma waya ang'onoang'ono a 4M, monga ma waya a 4M akufunika. Kugwira ntchito kosavuta komanso kosavuta, komwe kungachepetse kwambiri kuchuluka kwa ogwira ntchito, ndikuwongolera kwambiri magwiridwe antchito.