A:The main difference lies in their mode of operation where by one requires user effort while the other utilizes electricity power supply. A manual version needs someone to turn handle so as rolls over materials but with electric type motorized thus rolling becomes automatic which saves time too besides being less labor intensive since physical input needed from users may not always be enough especially during busy days at work places where many pastries need preparation within short durations hence this should considered when selecting appropriate machine for business set up. Also manual ones are slower than powered ones.