... 3.High efficiency 4.Long life,easy to maintenance The low RPM vertical wind turbine PMG rated power:300W80RPM,500W80RPM, ... ACMagnetic steel material:38SH NdFeBClass of insulation:BCase material: cast iron / aluminium Remark: we can design and produce the non-standard ... axis wind turbine:300W,500W,1KW,2KW,3KW,5KW2.Vertical low RPM wind turbine generator:300W80RPM,500W80RPM,1KW50RPM,2KW50RPM,3KW50RPM, ...