This is an equipment to make blood homogenous. This is shakeless & gentle mixing process.It is essential pre-process for perfect result of RBC, WBC & platelets counting.Technical Data AVI-1315Roller Size 4mm x 230mm lg.Mains Input 230c , 50Hz110v, 60Hz ACRPM 30RPMMixing Time 15 to 20 minutesWeight 2.0Kg.NetCapacity Vaccutainer 6 Nos.[4ml] or 5ml x 15 bulb