It takes approximately 1 hour to manually fold and insert 120 sheets of paper into envelopes.
Folding Machines will fold paper at a rate of up to 300 sheets per minute.
The difference between a cheap Folding Machine and a quality Folding Machine is one will turn your documents into Origami and the other will fold your paper perfectly and serve you well for a long time.
The type of Folding machine you need will depend on your particular application, the paper stock, the type of fold you require, etc.
