... 3. It is perfect testing instrument project quality testing section, universities and colleges ... noise and high driving efficiency 3 High accuracy load ... testing force700mm700mm700mm700mm700mm700mmValid width of testing space 400mm400mm400mm580mm580mm580mmPower supply 1-phase, 220V, 50/60Z3-phase,380V, 50/60HZWeight 500kg500kg550kg1100kg2100kg2200kg WDW-50Y Electronic cube compression testing machine ...