Oztec Electric motors are manufactured to exacting specifications to withstand the rough day to day abuses associated with construction sites. Lightweight, compact and fitted with our comfortable adjustable shoulder strap, this one man power unit will speed through the stiffest concrete. All Oztec Power Units (gas and electric) run vibrator heads 11,000 to 12,000 vpm. They never drop below 10,000vpm even in the lowest slump concrete (near 0) when maximum head size specifications are followed.