... Thermal protection function 3.Large surface belt 4.High belt speed BELT GRINDER BELT SANDERFEATURES1,Quick adjustment of work angle ... speed4,Thermal protection function5,Optional dust sack6,Two belt speeds for you7,Emergency stop button8,CE approvedSPECIFICATIONSModelJD ... purify environment3.Optional frequency conversion function belt grinder belt sander grinding machine belt size 75x2000mm/150x2000mm