Help customers understand your systems. Your organization may have the world's best systems for getting things done, but if customers don't understand them, they can get confused, impatient and angry. Take time to explain how your systems work and how they simplify transactions. Be careful that your systems don't reduce the human element of your organization.
1.Appreciate the power of "Yes". Always look for ways to help your customers. When they have a request (as long as it is reasonable) tell them that you can do it. Figure out how afterwards. Look for ways to make doing business with you easy. Always do what you say you are going to do.
2.Know how to apologize. When something goes wrong, apologize. It's easy and customers like it. The customer may not always be right, but the customer must always win. Never quarrel with customers in the ball mill business. Deal with problems immediately and let customers know what you have done. Make it simple for customers to complain. Value their complaints. As much as we dislike it, it gives us an opportunity to improve. Even if customers are having a bad day, go out of your way to make them feel comfortable.
3.Give more than expected. Since the future of all companies lies in keeping customers happy, think of ways to elevate yourself above the competition. Consider the following:
•What can you give customers that they cannot get elsewhere?
•What can you do to follow-up and thank people even when they don't buy?
•What can you give customers that are totally unexpected?
4.Get regular feedback. Encourage and welcome suggestions about how you could improve. There are several ways in which you can find out what customers think and feel about your services.
•Listen carefully to what they say.
•Check back regularly to see how things are going.
•Provide a method that invites constructive criticism, comments and suggestions.
5.Treat employees well. Employees are your internal customers and need a regular dose of appreciation. Thank them and find ways to let them know how important they are. Treat your employees with respect and chances are they will have a higher regard for customers. Appreciation stems from the top. Treating customers and employees well is equally important.

Vibratory feeder : http://www.best-crushers.com/vibratingfeeder.htm
Vibrating grizzly feeder : http://www.china-crusher.com/vibrating-feeder1.html