First, you need to figure out what is going on in your factory. I suggest you start out by holding brief, individual interviews with each employee.
At the end of those interviews you will have a different picture of the situation and lots of feedback regarding how you can improve things. Then you can start implementing the most reasonable ideas.
Elinor Robin, "The Relationship Mediator," has more than 18 years of experience in mediation while working within the public and private sectors.