... 40W, 60W, 90W, 120W, 140W,200w,250w,300w 3) Voltage: 12v,24v,36v48v,72v,90vNote : It's just the typical technical ... micro AC gear motor;2005 start to customize products for customer. Meanwhile,start to produce DC gear motor;2006 start to produce small series AC gear motor ... 's first high-precision helical planetary gear reducer in 2011;ZD developed a robot-specific reducer in 2011.Honors:Ningbo’s well ...