... ,office and so on. SPECIFI CATIONPermanent magnetism direct current electric machine drive.Standard tranel:50 100 150 200 250 300 ... 300mm/s,rated load velocity:15mm/s,word cycle mode:10%.Ambient temperature:-5 to+40 degrees,standard protection of ... by DS/EN ISO3746, electrical machine no load.Application:household electric beds, electric bed medical,dental chair,wheelchair,industrial machinery,etc.